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285 Cards in this Set
- Front
- Back
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Which bulletin, produced by AFWA Space Weather Operation Center, provides notice that certain HF communications frequencies may become unusable during daylight conditions due to a sudden burst in the sun's X-ray radiation?
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WOXX50 KSFC
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Which bulletin produced by AFWA Space Weather Operation Center, provides notice that a geomagnetic storm has already started?
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WOXX54 KSFC
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Which bulletin, produced by AFWA Space Weather Operation Center, notifies SATCOM ground operators and space-tracking operators of potential interference from a burst of radio-wave radiation?
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NWXX50 KSFC
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TWO DISTINCT PROPERTIES COMMON TO MOST GROUND CLUTTER ARE...
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SMALL SPECTRUM WIDTH AND NEAR ZERO DOPPLER VELOCITY
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THE RADAR PRODUCT GENERATOR PROVIDES...
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ALERT PROCESSING
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SUBREFRACTION EFFECTS THE RADAR'S DISPLAYED HEIGHT VALUES BY MAKING DISPLAY HEIGHT VALUES...
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UNDERESTIMATED
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AN UNUSUAL STRAIGHTENING OF THE RADAR BEAM UPWARD BEST DEFINES...
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SUBREFRACTION
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WHAT IS THE MAXIMUM NUMBER OF HOURS THAT THE USER SELECTABLE PRECIPITATION PRODUCT CAN BE GENERATED FOR?
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24
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THE SPECTRAL SLOPE OF THE DOPPLER SPECTRUM OF A LARGE THUNDERSTORM WITH HAIL APPEAR...
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BROAD AND FLAT
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WHAT INFORMATION DOES THE CELL TRANDS PRODUCT PROVIDE FOR THE OPERATOR?
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STATUS OF SUPERCELLS AND THE POTENTIAL FOR MICROBURSTS.
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A REQUEST FOR A PRODUCT NOT ON THE CURRENT ROUTINE PRODUCT SET LIST IS CALLED...
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A ONE TIME PRODUCT REQUEST.
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WHICH STATEMENT BEST DEFINES A STORM CELL SEGMENT?
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CONTIGUOUS SAMPLE OF VOLUMES ALONG A RADIAL THAT ARE GREATER THAN OR EQUAL TO SPECIFIC REFLECTIVITY THRESHOLDS.
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THE LINE ECHO WAVE PATTERN (LEWP0 SIGNATURE SHOULD SIGNAL THE RADAR OPERATOR THAT...
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A FAVORABLE ENVIRONMNET EXISTS FOR SEVERE WEATHER DEVELOPMENT.
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WHAT DOES SUBREFRACTION DO?
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REDUCES THE MAXIMUM RANGE OF THE DETECTION OF LOW-LEVEL TARGETS.
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A LIMITATION CAUSING SMALL FEATURES AT LONG DISTANCES TO GO UNDETECTED IS...
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BEAM BROADENING
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THE ABILITY OF THE RADAR TO DISTINGUISH BETWEEN TWO TARGETS AT THE SAME RANGE BUT AT APPROXIMATELY THE SAME DIRECTION FROM THE RADAR IS CALLED...
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BEARING RESOLUTION
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THE GRAPHIC SYMBOL FOR AN ELEVATED TORNADIC VORTEX SIGNATURE (ETVS) IS...
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RED, OPEN, INVERTED, ISOSCELES TRIANGLE.
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EMBEDDED THUNDERSTORMS ARE DETECTED BY THE WSR-88D QUITE WELL BECAUSE...
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ITS 10CM WAVELENGTH CAN SEE THROUGH THE STRATIFORM PRECIPITATION THAT TENDS TO HIDE THE STORMS ON 5CM RADARS.
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PROCESSING OF GROUND CLUTTER AND RANGE UNFOLDING ARE FUNCTIONS OF THE...
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RADAR DATA AQUISITION.
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THE COLOR-CODED ROOT MEAN SQUARE (RMS) OF DISPLAYED VELOCITY AZIMUTH DISPLAY (VAD) WINDS IS RELATED TO THE...
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RELIABILITY OF THE WINDS
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WHAT IS THE IMPACT OF ELECTRON DENSITY GRADIENTS WITHIN THE IONOSPHERE ON EARTH-BASED SPACE TRACKING RADAR'S SHF SIGNALS...
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POSITIONAL ACCURACY AND OBJECT IDENTIFICATION IS DEGRADED.
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THE STORM RELATIVE MEAN RADIAL VELOCITY MAP AND STORM RELATIVE MEAN RADIAL VELOCITY REGION (SRM/SRR) PRODUCTS ARE DERIVED FROM THE BASE...
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VELOCITY ALGORITHM
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THE NUMBER OF CYCLES PER A GIVEN UNIT OF TIME IS CALLED...
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FREQUENCY
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THE ECHO TOPS (ET) PRODUCT IS USEFUL IN...
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SHOWING THE PRESENCE OF VERTICAL TILT WITHIN A STORM.
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THE DOPPLER DILEMMA IS A TRADEOFF BETWEEN...
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RANGE AND VELOCITY
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IN COMPARISON TO THE VERTICALLY INTEGRATED LIQUID (VIL) GRID BOXES, SEVERE WEATHER PROBABILITY (SWP) GRID BOXES ARE...
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LARGER
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THE MAIN DIFFERENCE BETWEEN AN OPEN PRINCIPLE USER PROCESSOR (OPUP) USED AT AN OPERATIONAL WEATHER SQUADRON AND AN OPUP USED AT A COMBAT WEATHER TEAM IS...
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CAPABILITY OF THE OPUP
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THE STORM TOTAL PRECIPITATION (STP) PRODUCT PROVIDES CONTINUOUSLY UPDATED INFORMATION ON PRECIPITATION ACCUMULATIONS WITHIN HOW MANY NAUTICAL MILES OF THE RADAR?
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124
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THE VELOCITY AZIMUTH DISPLAY (VAD) WINDS PROFILE (VWP) PROVIDES...
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A TIME-HEIGHT PROFILE OF WIND VELOCITY AT PREDETERMINED RANGE.
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WHENEVER THE VELOCITY AZIMUTH DISPLAY (VAD) ALGORITHM DETERMINES THAT VELOCITY DATA FOR A PARTICULAR ALTITUDE DOES NOT MEET RELIABILITY THRESHOLDS, THE PRODUCT DISPLAYS WHICH SYMBOL FOR THAT ALTITUDE?
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ND
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THE FACTOR THAT ALLOWS A DOPPLER RADAR TO REMEMBER THE FREQUENCY OF THE TRANSMITTED ENERGY FOR LATER COMPARISON TO RETURNING ENERGY IS...
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COHERENCY
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THE CLEAR-AIR ANALYSIS TASK CONTAINS WHICH TWO ALGORITHMS?
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VELOCITY AZIMUTH DISPLAY AND VELOCITY VOLUME PROCESSING ALGORITHMS.
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A PRINCIPAL USER WITH DEDICATED COMMUNICATIONS TO A WSR-88D UNIT IS CALLED...
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AN ASSOCIATED USER
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THE OPEN PRINCIPAL USER PROCESSOR SOFTWARE CONCEPTS REPLACES THE GRAPHICS TABLET AND PUCK BECAUSE IT USES
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GRAPHICS USER INTERFACE
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WHICH PROCEDURE IS NOT A WA Y TO REQUEST PRODUCTS ON THE PRINCIPAL USER PROCESSOR?
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PRODUCT-PARAMETER SELECTION LISTS.
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A STRONGLY TILTED SOTRM MAY CAUSE WHAT KIND OF VERTICALLY INTEGRATED LIQUID (VIL) VALUES TO BE DISPLAYED?
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LOWER
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IDENTIFY THE THREE PROCESSING REGIONS OF THE LAYERED COMPOSITE REFLECTIBITY MAXIMUM (LRM) ANOMALOUS PROPAGATION REMOVED (APR) ALGORITHM.
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OMIT ALL, ACCEPT IF, AND REJECT IF
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NO DATA GAPS ARE MOST PREVALENT IN...
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VCP 21
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COMPUTATION OF THE EQUIVALENT REFLECTIVITY FACTOR (ZE) DEPENDS ON...
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AVERAGE RETURNED POWER, RANGE TO TARGET, AND A SET OF KNOWN FACTORS CALLED THE "RADAR CONSTANT."
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WHICH PRODUCT PROVIDES INFORMATION ON CELL-BASED VIL, HEIGHT OF MAXIMUM REFLECTIVITY AND MAXIUMUM REFLECTIVITY IN THE CELL.
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STORM STRUCTURE PRODUCT
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CONTROL OF THE RADAR PRODUCT GENERATOR IS ACCOMPLISHED FROM A COMPUTER TERMINAL KNOWN AS WHAT?
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RDA/RPG REMOTE ACCESS TERMINAL
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THE RADAR PRODUCT GENERATOR USES WHAT METHOD TO DEALIAS VELOCITY DATA BEFORE IT IS USED BY THE METEOROLOGICAL ALGORITHMS?
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EILTS DEALIASING TECHNIQUE
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AS ELECTROMAGNETIC WAVES ARE EMITTED FROM RADAR AND TRAVEL THROUGH THE ATMOSPHERE, SOME OF THEIR ENERGY IS LOST. WHAT IS THE LOSS OF ENERGY DUE TO THE INTERACTION WITH ATMOSPHERIC PHENOMENA CALLED?
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ATTENUATION
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UNDER WHICH CONDITION IS ANOMALOUS PROPAGATION OF THE RADAR BEAM MOST LIKELY TO OCCUR?
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DURING ABNORMAL ATMOSPHERIC CONDITIONS
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WHILE PERFORMING A RADAR METWATCH, THE OPERATOR NOTICES A STORM THAT HAS INCREASED FROM 40 TO 43 DBZS AT ONE ELEVATION SLICE. THE OPERATOR MUST ASSUME THE INTENSITY OF THIS STORM HAS...
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DOUBLED
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ALTHOUGH SEVERE WEATHER PROBABILITY (SWP) IS CALCULATED USING VERTICALLY INTEGRATED LIQUID (VIL), OCCASIONALLY BIL VALUES WILL DROP DRAMATICALLY WHILE SWP VALUES CHANGE LITTLE OR NOT AT ALL. THIS IS CAUSED BY...
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STORM TILT
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WHEN USING WEATHER RADAR TO MEASURE THE INTENSITY OF PRECIPITATION, THE PRESENCE OF BOTH LIQUID AND FROZEN SCATTERS MAY...
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DECREASE THE ACCURACY OF THE MEASUREMENT BECAUSE THE RADAR EQUATION DOES NOT HANDLE MIXED PRECIPITATION.
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THE MOST IMPORTANT PRODUCT USED IN DEFINING STORM SEGMENTS IS...
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BASE REFLECTIVITY
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RANGE RESOLUTION DEPENDS ON...
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PULSE LENGTH
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COMPOSITE REFLECTIVITY PRODUCTS ARE USED FOR...
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FIRST STEP TO IDENTIFYING SIGNIFICANT WEATHER FEATURES
PROCIDING AN INSTANT SNAPSHOT OF THE MOST IMPORTANT REFLECTIVITY FEATURES IT CAN BE USED A QUICK CHEKC ON THE OVERALL REFLECTIVITY PATTERN. |
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IF THE VELOCITY AZIMUTH DISPLAY (VAD) ALGORITHM FINDS NO DIFFERENCE BETWEEN THE ZERO VELOCITY LINE AND THE ZEROTH HARMONIC, THEN THE OFFSET IS ZERO, AND THE WIND FIELD IS
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UNIFORM
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WHICH ARCHIVE LEVELS ARE THE RADAR DATA ACQUISITION...
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I & II
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WHICH ARCHIVE LEVEL CAN ONLY RECORD THOSE PRODUCTS BEING RECEIVED AT THE PRINCIPAL USER PROCESSOR?
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ARCHIVE LEVEL IV
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THE VAD WINDS PROFILE (VWP) CAN DETECT FEATURES SUCH AS
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WIND SHIFTS AND JET STREAMS
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SUPERREFRACTION IS WHEN THE CURVATURE OF THE RADAR BEAM IS...
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GREATER THAN THE EARTH'S CURVATURE.
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WHICH PRODUCT IS USED IN THE DETECTION AND LOCATION OF ROTATING THUNDERSTORMS AND IN DETERMINING WIND FIELD CHARACTERISTICS?
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BASE MEAN RADIAL VELOCITY
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WIDESPREAD LOW SPECTRUM WIDTH VALUES WITH ISOLATED AREAS OF HIGHER VALUES IS MOST LIKELY INDICATIVE OF
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EMBEDDED THUNDERSTORMS
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WHAT IS THE FUNCTION OF THE TILT TEST IN THE HYBRID SCAN REFLECTIVITY (HSR) ALGORITHM?
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IT COMPARES THE AREAL COVERAGE OF ECHOES AT THE 0.5 AND 1.5 ELEVATION SLICES.
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THE SCIT ALGORITHM CAN TRACK HOW MANY INDIVIDUAL STORM CELLS?
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100
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WHICH WAVELENGTH WOULD BE BEST FOR INTERROGATING A LARGE THUNDERSTORM?
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10.7
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THE TECHNIQUE THE RADAR USES TO COMPARE THE FREQUENCY OF EACH NEW PULSE WITH THAT OF THE PULSE IMMEDIATELY PRECEDING IT IS KNOWN AS...
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PULSE PAIR PROCESSING
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VERTICALLY INTEGRATED LIQUID (VIL) ALGORITHMS DISPLAY VIL VALUES FOR STORMS BASED ON...
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REFLECTIVITY DATA CONVERTED TO LIQUID WATER CONTENT.
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WHICH SOLAR-GEOPHYSICAL SENSOR ACTS LIKE A RADAR AND TRANSMITS RADIO ENERGY VERTICALLY OVER A RANGE OF 2 TO 30 MHZ BETWEEN ANY TWO FEQUENCIES WITHIN THIS RANGE.
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IONOSPHERIC SOUNDER
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THE SPECTRUM WIDTH PRODUCT IS USEFUL FOR THE EARLY DETECTION OF THE THUNDERSTORM DEVELOPMENT BECAUSE...
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THE DETECTION OF HIGH SPECTRUM WIDTHS MAY BE INDICATIVE OF CURRENTS PRESENT IN A CONVECTIVE ATMOSPHERE.
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ONCE TEH MESOCYCLONE ALGORITHM IDENTIFIES ALL PATTERN VECTORS, IT ATTEMPTS TO CONSOLIDATE THEM TO FORM...
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2-D FEATURES
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WEHN THE DOPPLER ZERO LINE HAS A NOTICEABLE FORWARD S-SHAPED PATTERN, WINDS ARE CONSIDERED...
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VEARING WITH HEIGHT
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THE STORM CELL CENTEROID ALGORITHM PERFORMS BEST WHEN...
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ISOLATED, WELL-DEFINED THUNDERSTORMS ARE PRESENT.
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THE 2-D PROCESSOR SEARCHES FOR CYCLONIC SHEAR BY IDENTIFYING...
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PATTERN VECTORS
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WHICH ACTION IS AN EFFECTIVE MEANS OF DECREASING VELOCITY ALIASING?
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INCREASE THE PULSE REPETITION FREQUENCY.
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THE WORKSTATION IS THE INTERFACE TO WHICH PROCESSORS IN THE WEATHER SURVEILLANCE RADAR 1988-DOPPLER SYSTEM?
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DISPLAY AND GRAPHIC PROCESSORS
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WHAT DETERMINES THE LENGTH OF A FORECAST MADE BY THE STORM POSITION FORECAST ALGORITHM?
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ACCURACY OF PREVIOUS VOLUME SCAN'S FORECAST
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THE SPECTRUM WIDTH PRODUCT IS MOST EFFECTIVE WHEN...
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USED WITH OTHER PRODUCTS
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THE TWO WAYS TO SELECT PRODUCTS FROM THE PRINCIPAL USER PROCESSOR DATABASE ARE BY USING THE
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GRAPHIC TABLET AND PUCK AND THROUG HTHE APPLICATIONS TERMINAL.
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WHICH ARCHIVE LEVEL IS THE MOST IMPORTANT AND USEFUL BECAUSE IT ALLOWS THE TOTAL RECREATION OF A WEATHER SCENARIO?
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ARCHIVE LEVEL II
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SIDE LOBES CAN CAUSE...
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GROUND CLUTTER
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A LIMITATION OF THE STP PRODUCT IS THAT IT...
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HAS TROUBLE WITH SMALL-SCALE FEATURES.
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HOW LONG IS THE DATABASE FOR THE USER SELECTABLE PRECIPITATION (USP) PRODUCT?
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30 HOURS
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THE ABILITY OF THE RADAR TO DIFFERENTIATE BETWEEN TWO CLOSELY SPACED TARGETS AT THE SAME RANGE AND BEARING BUT AT DIFFERENT ELEVATIONS DEPENDS ON...
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BEAM WIDTH
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THE ACTUAL WIND SPEED IS DETERMINED IF THE FLOW OF WIND IS...
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PARALLEL TO THE RADAR BEAM AXIS
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HOW MANY ELEVATION SLICES DOES BOTH VCP 31 AND VCP 32 (CLEAR AIR MODE) COMPLETE IN TEN MINUTES?
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5
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THE ECHO TOPS (ET) PRODUCT IS BASED ON DATA FROM WHAT OTHER PRODUCT?
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BASE REFLECTIVITY
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ANOTHER TERM FOR SECOND-TRIP ECHOES IS
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RANGE FOLDING
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THE VELOCITY CROSS SECTION IS LIMITED TO...
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124NM
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THE AMOUNT OF TIME IT TAKES THE RADAR TO TRANSMIT ONE PULSE IS THE
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PULSE LENGTH
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OUTFLOW BOUNDARIES MAY BE SEEN ON THE WSR-88D EVEN WHEN NO CLOUDS ARE PRESENT BECAUSE...
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A GRADIENT IN THE REFRACTIVE INDEX DUE TO THE DENSITY DIFFERENCES WILL EXIST WITH THE BOUNDARY.
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BASE DATA IS COLLECTED BY THE
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RDA
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THE MAXIMUM RANGE MESOS CAN BE INDENTIFIED BY THE MESOCYCLONE ALGORITHM IS 110NM DUE TO
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A MAX HEIGHT THRESHOLD OF 8KM
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WEATHER FLIGHTS THAT USE AN OPUP ARE LIMITED WHEN COMPARED TO AN OPUP AT AN OPERATIONAL WEATHER SQUADRON BECAUSE THE WF HAS
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JUST ONE RDA
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WHICH WAVELENGTH IS BEST FOR DETECTION OF SMALL WATER DROPLETS?
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3CM
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WHICH OROGRAPHIC CLOUD RESEMBLES AN ALMOND OR A FISH?
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LENTICULAR
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THE PROBABILITY OF SEVERE HAIL ALGORITHM WILL LOOKFOR HAIL THAT IS
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> 3/4"
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WHAT LIMITS VELOCITY DETECTION IN A DOPPLER RADAR?
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WAVELENGTH
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WHICH PROCEDURE IS A PRIMARY USE FOR THE LAYERED COMPOSITE REFLECTIVITY MAXIMUM PRODUCT?
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QUICKLY IDENTIFYING STRONGER STORMS AND AREAS WITH A FREATER POTENTIAL FOR CONVECTION.
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FOR THE WSR-88D TO GENERATE A BASE REFLECTIVITY PRODUCT, THE ANTENNA MUST COMPLETE
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ONE ELEVATION SLICE
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WHEN THE RADAR DETECTS PURE CYCLONIC ROTATION, THE DOPPLER ZERO LINE IS ORIENTED
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PARALLEL TO THE VIEWING DIRECTION.
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THE GRAPHIC SYMBOL FOR A TORNADIC VORTEX SIGNATURE (TVS) IS A
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RED FILLED, INVERTED, ISOSCELES TRIANGLE.
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WHAT DECIDES THE MINIMUM RANGE OF THE RADAR?
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PULSE LENGTH
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WHICH DATA COLLECTION LIMITATION OF THE REFLECTIVITY CROSS-SECTION PRODUCT CAUSES REDUCED VALUES AT LONG RANGES?
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BEAM BROADENING
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THE SPECTRUM WIDTH PRODUCT IS USEFUL FOR THE EARLY DETECTION OF THUNDERSTORM DEVELOPMENT BECAUSE
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THE DETECTION OF HIGH SPECTRUM WIDTHS MAY BE INDICATIVE OF CURRENTS PRESENT IN A CONVECTIVE ATMOSPHERE.
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THE TOTAL NUMBER OF VERTICAL WIND PROFILES THAT CAN BE DISPLATED ON A SINGLE VELOCITY AZIMUTH DISPLAY WINDS PROFULE (VWP) IS
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11
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WHAT ARE THE DIFFERENT GROUPS OF ALERT THRESHOLDS?
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VOLUME GROUP, FORECAST GROUP, AND GRID GROUP
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THE ECHO TOPS (ET) PRODUCT COMPUTES ECHO TOP HEIGHT BY USING
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2.2 X 2.2NM GRID BOXES
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WHEN CHOOSING AN OPERATING WAVELENGTH FOR A RADAR, IT IS DEPENDENT UPON THE
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INTENDED USE
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THE PRIMARY INTERFACE USED TO REQUEST, CONTROL, AND MANIPULATE WEATHER SERVEILLANCE RADAR 1988-DOPPLER SYSTEM PRODUCTS IS THE
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GRAPHICS TABLET AND PUCK
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THE BEAM WIDTH OF THE WSR-88D IS APPROXIMATELY
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1.0 DEGREES
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THE DATA COLLECTED FOR GENERATION OF THE COMPOSITE REFLECTIVITY PRODUCT IS DERIVED FROM
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ALL ELEVATION SLICES
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CONCERNING TORNADIC VORTEX SIGNATURES (TVS), LOCALIZED SHEAR SHOULD EXTEND SEVERAL THOUSAND FEET AND SHOULD BE PRESENT FOR AT LEAST HOW MANY ELEVATION SLICES?
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TWO
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WHAT IS THE MOST IMPORTANT THING TO KEEP IN MIND WHEN REQUESTING A VELOCITY CROSS-SECTION?
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IT MUST BE CUT EITHER PARALLEL, OR PERPENDICULAR TO, A RADIAL
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WHICH PRODUCT IS BEST USED TO DETERMINE THE ACCURACY OF WSR-88D PRECIPITATION PRODUCTS?
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HYBRID SCAN REFLECTIVITY
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WHAT WILL THE 2.2NM (RESOLUTION) REFLECTIVITY PRODUCT DISPLAY, WHEN THE VALUES OF THE FOUR CONSECUTIVE .54NM DATA BINS ARE 23, 24, 30, AND 26?
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30
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WHO DETERMINES THE VARIOUS ALERT THRESHOLDS FOR METEOROLOGICAL PHENOMENA?
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LOCAL UNIT RADAR COMMITTEE
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WHICH INFORMATION IS INCLUDED IN THE ATTRIBUTE TABLE THAT ACCOMPANIES THE USER SELECTABLE PRECIPITATION (USP) PRODUCT?
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THE TOTAL NUMBER OF DATA LEVELS AND ACCUMULATION AMOUNTS FOR EACH.
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HOW DOES THE BEAM WIDTH VARY WITH THE WAVELENGTH; HOW DOES IT VERY WITH THE DIAMETER OF THE ANTENNA?
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DIRECTLY; INVERSELY
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THE THREE CIRCULATION CELLS IN THE THREE-CELL CIRCULATION THEORY ARE...
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POLAR, HADLEY, AND FERREL
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A WARM FRONTAL OCCLUSION OCCURS WHEN THE COOL AIR
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BEHIND THE COLD FRONT OVERRIDES THE COOLER AIR AHEAD OF THE WARM FRONT
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THE BEST SOURCES FOR IDENTIFYING A FRONTAL INVERSION ARE THE
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TEMPERATURE AND DEW-POINT CURVES AND THE ERTICAL WIND DISTRIBUTION.
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WHICH STATEMENT IS CORRECT REGARDING THE SOLAR CYCLE?
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THERE IS A RAPID 4-YEAR RISE TO A SOLAR MAXIMUM FOLLOWED BY A 7-YEAR DECLINE TO A SOLAR MINIMUM.
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THE FRONTOLYTIC PROCESSES ARE MOST EFFECTIVE
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IN THE LOWER LAYERS OF THE ATMOSPHERE
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FOR OBSERVING PURPOSES, FOUR HYDROMETERS ARE CONSIDERED TO BE OBSTRUCTIONS TO VISION. THEY INCLUDE FOG, BLOWING SNOW...
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FREEZING FOG AND BLOWING SPRAY.
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WHICH AFSPC WEATHER AND ENVIRONMENTAL UNIT PROVIDES WEATHER SERVICES FOR ALL DOD AND CIVILIAN SPACE AND BALLISTIC MISSILE LAUNCH OPERATIONS ON THE EASTERN RANGE?
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45TH WEATHER SQUADRON
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THE PRIMARY CAUSE OF SURFACE PRESSURE CHANGES FOR A DYNAMIC LOW IS NET
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DIVERGENCE ALOFT
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JET FINGERS...
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SUGGEST THE JET STREAM IS BEGINNING TO DISSIPATE
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THE NAME GIVEN TO THE DARKEST AREA AT THE CENTER OF THE SUNSPOT IS...
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UMBRA
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AFTER WARM AIR WITH THE UNSTABLE WAVE IS ALOFT AND CUTS OFF FROM THE CYCLONE, THE CYCLONE WILL BECOME
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BAROTROPIC AND BEGIN TO FILL
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YOU WOULD CLASSIFY PRECIPITATION AS INTERMITTENT IF...
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IT STOPPED AND STARTED AT LEAST ONCE WITHIN THE PRECEDING HOUR
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CIRRUS CLOUDS IN THE FORM OF AN ANVIL ARE CLASSIFIED AS
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H3
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A SUDDEN INCREASE OF WIND SPEED OF AT LEAST 16KTS AND A SUSTAINED AVERAGE OF 22KTS THAT IS MAINTAINED FOR AT LEAST 1 MIN. BEFORE THE SPEED DIMINISHES IS CALLED A...
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SQUALL
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THE COLD CONVEYOR BELT ORIGINATES IN THE LOW LEVELS THAT ARE LOCATED...
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EAST OF A LOW CENTER AND FLOW WESTWARD.
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THE PRIMARY DIFFERENCE BETWEEN STRATUS AND ALTOSTRATUS CLOUDS IS...
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THE COMPOSITION OF THE CLOUDS.
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THE WIDTH OF THE JET STREAM CORE IS APPROXIMATELY EQUAL TO THE
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WIDTH OF THE 500MB ISOTHERM RIBBON
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HOW MUCH ENERGY DOES THE SUN MANUFACTURE PER SECOND?
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3.85 X 10(26) WATTS
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WHAT ELECTRICALLY CHARGED PARTICLES EMITTED BY THE SUN ARE OF PRIMARY INTEREST IN THE SPACE ENVIRONMENT?
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ELECTRONS AND PROTONS
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THE DAMPER EFFECT IS COMPRISED OF UPPER LEVEL...
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CONVERGENCE AND SURFACE HIGH PRESSURE.
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AN INTENSE CYCLOGENESIS NORMALLY OCCURS IN TROUGHS WITH A...
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NEGATIVE TILT THAT IS ORIENTED NORTHWEST/SOUTHEAST
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WHICH LOW CLOUD TYPE AND CLASSIFICATION IS IDENTIFIED BY THE PRESENCE OF A CIRRIFORM ANVIL?
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CUMULONIMBUS- L9
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HOW WOULD YOU CLASSIFY MIDDLE CLOUDS THAT CAN LOWER TO WITHIN SEVERAL HUNDRED FEET OF THE SURFACE?
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M2
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WHICH CONCEPT SHOULD BE CONSIDERED WHEN TRYING TO DETERMINE HAIL SIZE?
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STRENGTH OF THE UPDRAFT
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WHAT AIR MASS FORMS OVER LAND ONLY DURING THE SUMMER?
|
CT
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WHEN IS THE GREATEST POTENTIAL FOR LARGE SOLAR FLARES TO OCCUR?
|
2-3 YEARS FOLLOWING A SOLAR MAX
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WHAT IS THE REFERENCE LEVEL FOR ALL PRESSURE VALUES?
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SEA LEVEL PRESSURE
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WHICH TYPE OF OBSTRUCTION TO VISION IS CLASSIFIED AS A LITHOMETER?
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SMOKE
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WITH THE PASSAGE OF A COLD FRONT IN THE NORTHERN HEMISPHERE, THE HORIZONTAL WIND DIRECTION WILL...
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SHIFT IN A CLOCKWISE DIRECTION
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YOU ARE PREPARING TO USE A CONVECTIVE CLOUD HEIGHT TABLE TO DETERMINE THE HEIGHTS OF CLOUDS. TO DO THIS PROPERLY, YOU MUST FIRST DETERMINE THE...
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DEW-POINT TEMPERATURE AND FREE -AIR TEMPERATURE
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WHAT CAUSES THE SURFACE LOW TO DEEPEN DURING THE SELF-DEVELOPMENT PROCESS?
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DIVERGENCE
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TO ACHIEVE GEOSTROPHIC WINDFLOW, THERE MUST BE A BALANCE BETWEEN...
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PRESSURE GRADIENT FORCE AND CENTRIFUGAL FORCE
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THE FORCE THAT IS RESPONSIBLE FOR STARTING THE HORIZONTAL MOVEMENT OF AIR OVER THE EARTH'S SURFACE IS
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PRESSURE GRADIENT
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WHICH TYPE OF RADIATION CAUSES IONIZATION OF UPPER ATMOSPHERIC ATOMS AND MOLECULES AND RESULTS IN THE HEATING OF THE UPPER ATMOSPHERE?
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ULTRAVIOLET
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A CORONA IS OFTEN PRESENT AT NIGHT WITH
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ALTOCUMULUS CLOUDS
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WHERE ARE THE FLOATING ELECTRONS CREATED THAT MAKE UP THE IONOSPHERE?
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MESOSPHERE AND THERMOSPHERE
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WHICH FORCE IS THE "EQUAL AND OPPOSITE REACTION" TO THE CENTER-SEEKING FORCE?
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CENTRIFUGAL
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A WARM BAROTROPIC HIGH
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HAS GREAT VERTICAL EXTENT AND IS USUALLY FOUND OVER WATER AREAS
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THE DISTINGUISHING FEATURE OF ANY TORNADIC ACTIVITY IS
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A FUNNEL SHAPED APPENDAGE THAT HANGS FROM THE BASE OF THE CLOUD
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WHICH AIRMASS INVOVLES MOST OF THE WINTERTIME STORMS FOR THE NORTH AMERICAN PACIFIC COAST?
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MT
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A MAJOR DIFFERENCE BETWEEN A METWATCH AND MISSIONWATCH IS THAT
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METWATCH FOCUSES ON A BROAD AREA, WITH A GENERAL FORECAST
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A DECREASE IN MASS IN A COLUMN OF AIR WILL CAUSE THE SURFACE PRESSURE TO
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DECREASE
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IN WHICH GEOPGRAPHIC LOCATION IN THE EARTH'S OUTER ATMOSPHERE IS THE MAJORITY OF HIGH ENERGY, PROTON PARTICLES EXPERIENCED?
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POLAR CAPS
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WHICH SOLAR-GEOPHYSICAL SENSOR MEASURES THE STRENGTHS AND VARIATIONS OF EARTH'S MAGNETIC FIELD?
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MAGNETOMETER
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WHAT FACTORS MUST A REGION POSSESS IN ORDER TOFACILITATE AIR MASS FORMATION?
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UNIFORM SURFACE, STAGNANT AIR, LARGE-SCALE DIFLUENT FLOW
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HOW MANY MINUTES DOES IT TAKE FOR SOLAR FLAR-ENHANCED X-RAYS AND EXTREME ULTRAVIOLET AND RADIO WAVES TO REACH THE EARTH?
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8
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WEIN'S LAW STATES THAT
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THE WAVELENGTH AT WHICH MAXIMUM ENERGY IS EMITTED IS INVERSELY PROPORTIONAL TO THE OBJECT'S TEMPERATURE
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A STABLE AIR MASS THAT FORMED OVER LAND IN THE ARTIC HAS NOW MOVED OVER THE OCEAN'S WARMER SURFACE. YOU WOULD CLASSIFY THIS AIR MASS AS...
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CAKS
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CONTINENTAL TROPICAL AIR MASSES ARE USUALLY ASSOCIATED WITH
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THERMAL LOWS
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WHAT HEAT TRANSFER PROCESS INVOLVES THE TRANSFER OF ENERGY BY MOLECULAR MOTION FROM HOT TO COLD OBJECTS?
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CONDUCTION
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WHAT IMPACT DOES RADIO-WAVE RADIATION EMITTED BY THE SUN HAVE ON SATCOM GROUND STATIONS?
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INTERFERENCE
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HOW MANY STAGES ARE THERE IN THE LIFE CYCLE OF A LOW?
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5
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WHICH SOLAR-GEOPHYSICAL SENSOR MEASURES THE ABSOLUTE TEC BY ANALYZING THE SIGNALS FROM GPS SATELLITES.
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TRANSIONOSPHERIC SENSOR
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THE EARTH'S ATMOSPHERE RECIEVES THE MOST HEATING THROUGH THE PROCESS OF
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RERADIATED ENERGY FROM THE EARTH'S SURFACE
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|
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PRECIPITATION IS REPORTED TO THE NEAREST
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0.01 "
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WHAT AIRMASS CLASSIFICATION SIGNIFIES AN UNSTABLE, MARITIME TROPICAL AIR MASS THAT IS COLDER THAN THE SURFACE IT'S MOVING OVER?
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MTKU
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IN A COLD OCCLUSION, THE COLDEST AIR IS FOUND
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BEHIND A COLDFRONT
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WHICH IS PRIMARILY RESPONSIBLE FOR LOW-LEVEL DIVERGENCE ACTING AS A BRAKING MECHANISM FOR A HIGH?
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FRICTION
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THE IMPACT OF ELECTRON DENSITY GRADIENTS WITHIN THE IONOSPHERE ON SATCOMS IS SIGNALS AT...
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UHF ARE INTERMITTENTLY INTERUPTED
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WHICH HIGH CLOUD CLASSIFICATION IS ALSO REFERRED TO AS THE MACKEREL SKY?
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CIRRO Q H9
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THE THREE MAIN FORMS OF PRECIPITATION ARE:
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LIQUID, FREEZING, FROZEN
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WHAT SPACE PHENOMENA AFFECT THE ELECTICAL SYSTEMS OF ORBITING SATELLITES?
|
DIFFERENTIAL AND BULK CHARGING
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A CYCLONE THAT DEVELOSP ON A POLAR FRONT, DOES NOT INTENSIFY SIGNIFICANTLY, AND NEVER OCCLUDES IS CALLED...
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STABLE
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A LOW DISSIPATES AFTER PROCEEDING THROUGH ITS ENTIRE LIFE CYCLE WHICH RANGES FROM THE...
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BOTTOM UP AS BOUNDARY LAYER CONVERGENCE ADDS MASS TO THE COLUMN OF AIR.
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A THUNDERSTORM IS PRESENT AND OCURRING AT YOUR STATION. IN ADDITION, THE LOCAL NOISE LEVEL IS PRECENTING YOU FROM HEARING THE THUNDERSTORM. FOR OBSERVING PURPOSES, YOU WOULD SAY...
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HAIL IS FALLING
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WHEN AN INACTIVE COLD FRONT PASSES YOUR STATION, THE DEW POINTS WILL...
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DECREASE SHARPLY WITH PASSAGE
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ON WHAT PART OF THE ELECTROMAGNETIC SPECTRUM DOES THE MOST INTENSE ENERGY FALL?
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VISIBILE
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THE STRATOSPHERE IS CHARACTERIZED BY
|
A TEMPERATURE THAT REMAINS ISOTHERMAL TO 100,000 FT
STRONGEST CONCENTRATION OF OZONE EXCELLENT FLYING CONDITIONS |
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WHAT CAUSES A SURFACE HIGH TO BUILD DURING THE SELF-DEVELOPMENT PROCESS?
|
CONVERGENCE ALOFT.
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|
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THE DESIGNATED RUNWAY VISUAL RANGE (RVR) IS
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ANY RUNWAY THAT HAS BEEN INSTRUMENTED WITH A TRANSMISSOMETER
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|
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THE OVERALL POLARITY OF THE SUNS' NORTHERN AND SOUTHERN HEMISPHERES REVERSE EVERY...
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11 YEARS
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|
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IN THE SUMMER, CONTINENTAL HIGHS...
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DISSIPATE OVER THE HEATED LAND AND THE CP SOURCE REGIONS MOVE FARTHER NORTH.
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WHAT PHENOMENA IS A DYNAMIC AND DELICATE VISUAL MANIFESTATION OF SOLAR-INDUCED GEOMAGNETIC STORMS?
|
AURORA
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HOW DO YOU REPORT PREVAILING VISIBILITY AT A CONUS STATION VS OVERSEAS?
|
SM FOR CONUS
METERS FOR OVERSEAS |
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WHAT IS THE JOB OF HQ AFWA SPACE WEATHER OPS CENTER?
|
PERFORM STAFF ASSISTANCE VISITS TO SUBORDINATE UNITS; PROVIDE WEATHER AND SPACE ENVIRONMENTAL ASSISTANCE TO AFWA STAFF.
OPS LIAISON WITH NOAA & NASA FOR WEATHER SAT PROGRAMS, SPACE SHUTTLE WEATHER SUPPORT, NATIONAL SPACE WEATHER PROGRAM DIRECT AND MANAGE AFSPC OPS FOR ALL FACETS OF DMSP |
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THE SPACE WEATHER OPERATION CENTER RECEIVES ENERGETIC PARTICLE AND OTHER GEOPHYSICAL DATA FROM
|
DMSP SPACECRAFT
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THE CENTRAL PRESSURE OF AN ANTICYCLONE IS RISING, YOU CAN INFER THE ANTICYCLONE IS...
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BUILDING
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AN INCREASE IN MASS IN THE COLUMN OF AIR WILL CAUSE THE USRFACE PRESSURE TO...
|
INCREASE
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WIND OBSERVING EQUIPMENT IS ORIENTED TO...
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MAGNETIC NORTH
|
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Unstable waves are classified as
|
baroclinic lows
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Which publication describes how solar and geophysical activity may impact DOD radar and communications?
|
AFSPCPAM 15-2.
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If you throw a ball towards a stationary target from the window of a speeding vehicle, coriolis force will cause the ball to miss the target
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to the right
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An intense, temporary release of energy that occurs in the vicinity of sunspots and/or plages is called a
|
solar flare
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What pressure value is the basis for determining all other pressure values?
|
station pressure
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The two atmosphere gases most responsible for the absorbtion of incoming solar radiation are
|
oxygen and ozone
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What is the impact of electrically charged particles from the sun that penetrate into the mid to upper stratosphere?
|
Radiation hazard to aircrews of high altitude flight.
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What is the prime cause of solar activity?
|
solar flares
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In the life cycle of a low, the wave will reach its maximum intensity in the
|
mature stage.
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In which level of the ionosphere does most of the refraction of HF communication radio waves occur?
|
F-layer.
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The mechanism by which charged solar particle streams disrupt the magnetosphere and adversely affect radar, communication, and space operations is
|
A geomagnetic storm
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An electrical current passing through a wire coiled around a metal bar that induces a magnetic field is called
|
Electromagnetism
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You are reporting the visibility for more than one sector. To do this properly, you would list the sectors in a
|
clockwise direction starting with the northernmost sector
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When using Patterssen's rule, the factors needed for the cyclogenesis are upper-level
|
divergence and a frontal zone where thermal advection is weak
|
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Which solar features are ribbon-like, suspended in the corona by the magnetic field, and comparabe to clouds on earth?
|
Filaments
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The weather characteristics of a particular month in a given locality are governed by
|
effects of local topography and proximity to a zone of convergence
|
|
|
The temperature an air parcel would have if it were cooled adiabatically to saturation at constant pressure by evaporation of water into it is called
|
wet bulb temperature
|
|
|
The average slope of a cold front is
|
1/30 to 1/100
|
|
|
Converging contours downstream of the jet stream will cause the jet to
|
deflect toward lower heights
|
|
|
Horizontal divergence within an air mass will
|
vertically contract the original column of air and then expand it horizontally
|
|
|
In which layer/region of the ionosphere is the highest concentration of electrons located?
|
F2
|
|
|
What steers electrically charged particles in motion near earth?
|
Magnetic field
|
|
|
As air converges at the surface and towards the center of a layer, there will be horizontal
|
contraction and vertical expansion
|
|
|
What causes the subtropical jet (STJ) to recurve?
|
Coriolis force.
|
|
|
Centrifugal force will increase when there is a decrease in
|
the radius of rotation
|
|
|
The SFIR monitors solar emissions over a frequency range of
|
25 to 75 MHz
|
|
|
Blowing spray is reported only at sea stations near large bodies of water and when visibiltiy at eye level is restricted to
|
9,000 meters or less
|
|
|
Anticyclogenesis typically occurs at, and just downstream from, long-wave
|
ridges under confluent flow aloft
|
|
|
What form is radiation in when it leaves the sun's core?
|
Gamma rays
|
|
|
You are evaluating a jet maximum in straight line flow. To do this properly, you would locate the maximum area of convergence at the
|
left rear quadrant
|
|
|
Frontogenesis requires two adjacent air masses with
|
different densities and a wind flow to bring the air mass together.
|
|
|
Explain why the sky is blue?
|
short-wave radiation is reflected by atmospheric particles smaller than .5 microns.
|
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|
How many degrees centrigrade does the temperature decrease per 1,000 meters of altitude in the troposphere?
|
6.5
|
|
|
In relation to the jet core, the greatest horizontal wind shear is usually located
|
north of the jet core
|
|
|
What will the jet stream usually do when a cold, moving, polar high stagnates and begin to warm?
|
dissipate and a new jet forms to the north
|
|
|
The tails of comets that always point away from the sun show the influence of the
|
Solar wind
|
|
|
The jet core that is located between the midlatitude and the tropical tropopause's is called the
|
subtropical jet
|
|
|
Clouds or obsuring phenomena that have bases at the same approximate level" is the definition of
|
a layer
|
|
|
Advection transfers temperature
|
horizontally by the wind.
|
|
|
What color balloon would you use to determine the ceiling heights of thin clouds?
|
Red
|
|
|
The type of radiation that causes ionization of molecules in the upper atmosphere is
|
X-ray
|
|
|
Which process is most responsible for the slow formation of air masses in the polar region?
|
loss of heat by radiation
|
|
|
Which solar-geophysical sensor detects cosmic radio noise at a frequency of 30 MHz?
|
Riometer
|
|
|
Aloft, during the baroclinic instability process, the thermal wave and contour wave are
|
out-of-phase and cold-air advection occurs into the contour trough.
|
|
|
What air mass classification signifies a stable, continental polar air mass that is warmer than the surface it is moving over.
|
cPws
|
|
|
The term used to describe the even in which earth is showered with energetic solar particles released from a solar flare site is
|
Proton event
|
|
|
What is the intensity of snow which restricts visibility to less than ¼ mile?
|
heavy
|
|
|
The unit of measurement used to identify the strength of a magnetic field is
|
A gauss
|
|
|
Which region of the United States favors the development of frontal occlusions?
|
North
|
|
|
For a runway visual range (RVR) report of R15/1600, what is the visual range that a pilot can expect to see down the runway?
|
1,600 meters
|
|
|
Of the following levels of support, which is responsible for providing METWATCH guidance as they prepare the hemispheric-scale weather analysis?
|
AFWA
|
|
|
Using average surface frontal slopes, how far behind the surface cold front is the jet stream located
|
300 miles
|
|
|
Role of HQ AFWA Space Weather Operation Center?
|
Integrate weather and space environment operations into AFSPC missions, including spacelift, theater missile warning, surveillance, information dominance, and satellite control.
Provide consolidated requirements for standard Air Force weather equipment to the AFWA Coordinate organization, manpower, personnel, and training requirements as the command functional manager for weather. |
|
|
A thunderstorm officially ends
|
fifteen minutes after the last occurrence of thunder, hail, or lightning
|
|
|
The areas of low pressure that correspond to the belt of low pressure at 60 degrees north created by the 3-cell circulation are the
|
Icelandic and Aluetian lows
|
|
|
The most desirable night-visibility markers are
|
unfocused lights
|
|
|
Which high cloud can occasionally be so transparent that the only indication of its presence is a halo phenomenon?
|
H7
|
|
|
With an active cold front, the net flow is
|
upward
|
|
|
The balance of forces needed for gradient anticyclonic circulation are pressure gradient
|
and centrifugal balances against coriolis force
|
|
|
Which is true of water vapor in the atmosphere?
|
the more water vapor, the lighter the air will be.
|
|
|
Using average surface frontal slopes, how far ahead of the surface warm front is the jet stream located?
|
600 miles
|
|
|
The basic enery source for the sun is
|
fusion of hydrogen
|
|
|
The simplest method for locating the 500 millibar frontal zone is to
|
locate the position of the -17 degree Centrigrade isotherm.
|
|
|
Which type of radiation has the least application in the space environment?
|
Infrared
|
|
|
Which is the calculated sea-level pressure in inches of mercury?
|
altimeter setting
|
|
|
The balance of forces needed for gradient cyclonic circulation is pressure gradient
|
balanced against coriolis and centrifugal forces.
|
|
|
When only high and middle clouds are associated with a warm front, the
|
overrunning warm air is dry
|
|
|
Which of the following tasks is a responsibility of the lead unit, and at what level of support does this occur?
|
Identify the problem of the day; OWS.
|
|
|
Pilot reported ceiling heights must be converted from height above
|
mean sea level to height above ground level
|
|
|
Which factors act as air mass modifiers?
|
radiation loss, thermodynamics, advection, and mechanical mixing
|
|
|
The driving mechanism that is mainly responsible for the earth's large-scale atmospheric circulations is the
|
unequal heating of the earth
|
|
|
Air mass stability characteristics often depend on the temperature difference between the
|
air mass and the surface over which it is traveling.
|
|
|
An inactive cold front is characterized by a relatively
|
steeper slope, a narrow weather pattern, and is called katafront.
|
|
|
In the baroclinic instability process,
|
potential energy is transferred to the major short wave by thermal advection
|
|
|
What is the term used to describe transient, concetrated, localized, magnetic fields in the chromosphere?
|
Sunspots
|
|
|
Surface pressure changes are largely controlled by
|
mass changes in the upper troposhere
|
|
|
Which solar feature is formed by the condensation of material from the hot corona?
|
Loop prominence.
|
|
|
The atmospheric properties that can be a measure of the strength of a frontal system are thickness gradient
|
temperature gradient, lapse rate, turbulence, and wind shear
|
|
|
The rate that an air mass modifies depends on the
|
temperature differences between the new surface and the air mass, the nature of the surface over which it moves, and the speed with which the air mass travels
|
|
|
Low cloud bases range from
|
near the surface to 6,500 feet above ground level
|
|
|
The three estimates that the hail detection algorithm provides are
|
Probability of hail, probability of severe hail, and maximum expected hail size
|
|
|
Which heat transfer process vertically transports the atmospheric properties of heat and moisture and is a more efficient method of heat transfer than by molecular motion?
|
Convection
|
|
|
What type of precipitation might you observe with clear skies?
|
ice crystals
|
|
|
Select the statement that is the best definition of space environmental effects
|
Electrically charged particles and electromagnetic radiation emitted primarily by the sun, and the environmental phenomena they create by interaction with earth's upper atmosphere and magnetic field.
|
|
|
In a warm frontal occlusion, the coldest air is found
|
ahead of the warm front
|
|
|
Coriolis force is created by
|
the cyclonic rotation of the earth
|
|
|
In relation to the jet core, the greatest vertical wind shear is usually located
|
above the jet core.
|
|
|
A high-pressure system undergoes anticyclolysis when the clockwise circulation area
|
decreases or disappears
|
|
|
Less than one percent of the sun's total emitted electromagnetic radiation lies in the
|
Extreme ultraviolet, X-ray, and radio wave portions of the electromagnetic spectrum.
|
|
|
A low-pressure system undergoing cyclogenesis is said to be
|
forming or deepening
|
|
|
Regarding a weather warning for winds greater than 50 knots, which of the following statements best defines the term minimum desired lead time?
|
The amount of advanced notice a customer requires before the even occurs.
|
|
|
Which layer of the sun is visible from earth when we look at the sun with our eyes?
|
Photosphere
|
|
|
Above 13 miles, the radiation from the sun breaks down the oxygen in the atmosphere into
|
ozone gas
|
