Wind Patterns Lab Report

Improved Essays
To see the similarities and differences between wind patterns in the Northern and Southern Hemispheres alongside with explaining the major wind belts.
Material:
• Map of North America with longitude and latitude
• Drawing compass
Procedure:
1. View the map from the lab given. The map represents the barometric pressures at 5000 feet in North America on a precise day in February.
2. Use the Web to get another map of North America that covers the same approximate area shown in the map given in the lab and is noted with latitude and longitude. Keep in mind at mid-latitudes, one degree of latitude is approximately 60 nautical miles.
3. Note that there is a knot is a nautical mile per hour. There are 6076.115 feet in a nautical mile (versus 5280 feet in a statute mile). This means 1 knot is faster by a factor of (6076.115/5280) or 1.15.
4. Use the representation given in lab to fill in the isobars and specify the direction of air movement a high and low-pressure area perceived on the map.
Data:
Map from lap showing wind pressure and knots.

Map showing latitude and longitude for calculations. Calculations: From Nova
…show more content…
The theory behind the lab is to be able to figure out how areas of low and high pressure were in the southern hemisphere. To understand that wind flows counterclockwise when around the lower pressure and that wind flow clockwise around the high pressure wind. To be able to identify the reaction to differences in pressure. To be capable to spots point of equal pressure called isobars.
b. If I have made any mistakes, then it would have been in the calculations of finding the gradient because I had a hard time on understanding on how properly find the pressure gradient between the two regions. I did the best I could in researching and using the lab information to properly do this. Another mistake that could have possibly been made was a measurement mistake. When I was estimating the wrong latitude and longitude of the pressure gradient

Related Documents

  • Improved Essays

    Ocean Currents Causes

    • 829 Words
    • 4 Pages

    Currents are the movements of the ocean produced by various causes. It may be divided into general and particular. The former depending on fixed and general causes which is always preserve the same direction and limits while the latter resulting from local and temporary ones vary both. The grand movement of the ocean from east to west or the equatorial current has a more complicated origin and the trade wind, so far from being the cause as has been supposed by some are probably in part the effect of this current. (J. H. Tuckey, 1815) Ocean currents are water movement and circulation forms that effect climate zones and weather patterns around the world.…

    • 829 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    Classification By Speed Range:- Wind tunnels are often denoted by the speed in the test section relative to the speed of sound. The ratio of the air speed to the speed of sound is called the Mach number. The tunnels are classified as i. Subsonic (< 0.8) ii. Transonic (0.8 to 1.2) iii. Supersonic (1.2 to 5.0) iv.…

    • 1489 Words
    • 6 Pages
    Great Essays
  • Improved Essays

    Offshore Wind Turbines

    • 781 Words
    • 4 Pages

    These statistical methods were based on field data from the utility-scale turbine to address statistical load extrapolation issues. The study suggests that the method should be useful in simulation-based attempts at deriving wind turbine design loads. Xu and Ishihara (2014) used analytical formulae to estimate the maximum value for along-wind and cross-wind loads on the wind turbine towers by using the quasi-steady analysis. The formulae showed favorable agreements with the full dynamic simulation. Simplified formula to calculate the maximum base moment…

    • 781 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    Current DNV recommends a surface current with 10-year return period to be used in the mooring design analysis. One-hour wind speed at 10 m height can also be used to estimate the wind-generated current velocities with the following equation where statistical data is not available. V_(C_Wind )=0.015∙U_(1 hour,10 m) Equation 3.1 Directions The non-collinear environment as specified in DNV-OS-E301 is used in the analysis. The wind is at 30° relative to the waves while the current is applied at 45°. The Pierson – Moskowitz spectrum is used for the random waves.…

    • 1257 Words
    • 6 Pages
    Great Essays
  • Superior Essays

    Model of the contact The radial contact force "F" _"r" between the rotor and touchdown bearing is modeled by modified Hertzian contact theory [4]: "F" _"r" "=" {■("K" "δ" ^"10/9" ("1+" ("3/2" )"α" "δ" ̇ )" ;" "e" _"r" ">" "c" _"r" " and " "F" _"r" ">0" @" 0 ;" "e" _"r" "≤" "c" _"r" " and " "F" _"r" "≤0 " )┤ (15) where "K" is the contact stiffness between the rotor and inner race, and "α" is a contact parameter that for steel ranges between 0.08 and 0.2 [22]. Numerical values for the stiffness and damping of the contact between the rotor and inner race are given in Table 1. In Equation (15), "δ" is the penetration of the rotor in the inner race and can be obtained as follows: "δ=" "e" _"r" -"c" _"r" (16) where "c" _"r" is the radius of the air gap between the rotor and touchdown bearing. Radial displacement of the rotor is "e" _"r" , which can be expressed as follows [4]: "e" _"r" "=" √("e" _"x,r" ^"2" "+" "e" _"y,r" ^"2" ) (17) where "e" _"x,r" and "e" _"y,r" are the radial displacement between the rotor and inner race in the "x" and "y" -directions. The model also includes the friction force "F" _"μ" between the rotor and inner race, which can be…

    • 1417 Words
    • 6 Pages
    Superior Essays
  • Great Essays

    Wind Turbines Essay

    • 1042 Words
    • 5 Pages

    Verheij (1988) had developed a Gust Model for the design of large wind turbines and explained the various wind loads and their causes. Saranyasoontorn et al. (2004) investigated the influence of turbulence conditions on the design loads…

    • 1042 Words
    • 5 Pages
    Great Essays
  • Improved Essays

    Different numerical methods are used to integrate the differential governing equations. The choice of the numerical method which will be joined with the influence of calculations steps in terms of accuracy are discussed in results section. However, an equivalent circuit diagram, shown in figure 7, was established regarding the energy balance analysis on solar collectors to investigate variations of various parameters affecting their performance. According to ASHRAE standard [44], the useful thermal power Qu is defined as the difference between the collected heat flux and the losses, can be evaluated using equation 43. It may be also expressed as function of the gained and lost energy of the absorber as given by equation…

    • 1857 Words
    • 8 Pages
    Improved Essays
  • Improved Essays

    M is the resultant internal bending moment calculated about the neutral axis of the cross section, y in this case is the thickness of the beam divided by two, and I is the moment of inertia of the cross-sectional area about the neutral axis [4]. The final equation is, Equation 5 is utilized to calculate the deflection δ of the cantilevered beam at x = L when a load is applied at a point. Since we would not applying a specific load but knowing the displacement we solved this equation for P. There equation came out to be, After modifying the equations 2, 3, 4, and 6 and forming one equation, we were are then able to derive the equation which represents the Bernoulli-Euler equation to be, Equation 7, is utilized to relate the strain of a beam to the displacement in which is experience in part one of this lab to the strain that is calculated by the strain gage. We would then use equation 6 to find the uncertainty for the strain output. The equation we used was, The final equation used was to calculate the Poisson ratio of the material, in this case the beam the strain gage was attached to in part two.…

    • 2086 Words
    • 9 Pages
    Improved Essays
  • Improved Essays

    • USGS 7-½ minute quad sheets (ArcGIS Resource center, 2013). • North America (USGS, central meridian with a scale factor of 0.926) (ArcGIS Resource center, 2013). • Topographic maps of the Ordnance Survey of Great Britain after 1920 (ArcGIS Resource center, 2013). • UTM and Gauss–Krüger coordinate systems. Divide the world into 60 north and south zones six degrees wide.…

    • 733 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    Its $2^{nd}$ law efficiency varied from 11\% to its first maximum of 12\% at 14:00 hours. Cref{fig:Graph-Efficiency-Type2-Jun3} shows the $1^{st}$ law of efficiency varied from 44.39\% at 10:00 hr to its first maximum value of 54.28\% at 14:00 hr whereas the $2^{nd}$ law efficiency varied from 19.34\% to its first maximum value of 24.05\% at 14:00 hr. The change in enthalpy ($vartriangle$h) and entropy ($vartriangle$S) with respect to time for both the SAHs tested under two different mass-flow rates are calculated and presented in the graphs, cref{fig:Graph-Enthalpy-Jun2} and cref{fig:Graph-Enthalpy-Jun3}. The change in enthalpy helps in understanding the amount of heat energy evolved from the heat exchange process whereas change in entropy helps in understanding the amount of energy lost due to irreversibility at each stage of the operation. In case of SAH, $vartriangle$h is computed based on specific heat capacity and temperature of air at inlet and outlet and $vartriangle$S is computed based on the temperature and pressure changes at inlet and outlet of SAHs.…

    • 1246 Words
    • 5 Pages
    Decent Essays