Hydrology

Sort By:
Decent Essays
Good Essays
Better Essays
Amazing Essays
Best Essays
    Page 1 of 32 - About 314 Essays
  • Good Essays

    flood flows in urban areas. Watershed considered for this study is Moores Run watershed (8.8 Km2) located in Baltimore, Maryland. A basin scale curve number based hydrologic model was developed in HEC-HMS with the aid of ArcGIS and HEC-GeoHMS. USGS 01585230 at Radecke Avenue gauge was used for the calibration of hydrologic model. Design storms with different return periods, developed by NOAA, were routed through the watershed to produce the peak flood scenarios for current land use conditions. Further, the hydrologic model was used in conjunction with EPA-SWMM to evaluate the applicability of various LID retrofitting to reduce flood peak and volume. LID design approach recommends the reduction of flow at its source, restoring the natural hydrology rather than controlling it through infrastructure based design. LID retrofitting technologies such as permeable pavements in parking lots, sidewalks and green roofs were evaluated for various design storms. About 2.65 % and 2.1% of the total area were subjected to permeable pavement and, green roofs respectively under standalone conditions. Consequently, 6-11 % and 2-8 % of flood peak reduction was achieved using permeable pavement and green roof techniques. For small watersheds such as Moores Run, these LID retrofits are deemed effective measures for reducing flood flows. INTRODUCTION As climate changes, several direct influences contribute in altering precipitation amount, intensity, frequency and type (IPCC). The present studies…

    • 977 Words
    • 4 Pages
    Good Essays
  • Decent Essays

    Hydrological Cycle Essay

    • 750 Words
    • 3 Pages

    Earth’s hydrology consists of many complicated processes that influence or directly impact the availability, as well as the quality, of water resources in a region. Rising global temperatures are projected to have a significant influence on these natural processes, affecting many components of the hydrological cycle. Hydrology, in the broadest definition, is the study of water. More specifically, it is a physical science, which “encompasses the distribution, movement, and quality of water in…

    • 750 Words
    • 3 Pages
    Decent Essays
  • Decent Essays

    Freshwater Threats

    • 1436 Words
    • 6 Pages

    groundwater. 14. How many states have laws that acknowledge that ecosystems may also be reliant on groundwater? (Table 1) a. Only 25 of the states have laws that recognize groundwater-dependent ecosystems. 15. Although we know water quantity affects water quality (i.e. dilution/concentration for contaminants), what percent of states have different agencies that oversee groundwater quality and groundwater quantity? (Table 1) a. 36 states have different agencies oversee water quantity and water…

    • 1436 Words
    • 6 Pages
    Decent Essays
  • Decent Essays

    (Jones et al., 2003). The crop model is equipped with its own soil hydrology module that interacts with the crop component that simulates plant’s phenology, morphology and yield. Crop models are generally designed to run continuously from sowing until maturity or harvest – unless the crop fails due to extreme stress. However, to incorporate DSSAT in the modeling framework (Fig. 3), it is customized to stop when desired and restarts from that point in time (Ines et al., 2013; Das et al.,
2011b).…

    • 782 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    The boundless number of rainfall and stream flow data started during the turn of the 20th century. The recorded hydrology during this time period only collected a few significant statewide droughts that manifested. These historical droughts occurred during 1928-34, 1976-77, 1987-92, and 2007-09. The latest heavy regional drought that shook the Southern parts of California was during 1999-2002. According to historical data with estimates from implied signals such as tree rings that suggest that…

    • 704 Words
    • 3 Pages
    Decent Essays
  • Decent Essays

    The Soil and Water Assessment Tool (SWAT) model is found to be suitable for this purpose (Arnold et al., 1998; Arnold and Fohrer, 2005). Although this model has been widely used in regional scale, this research will also try to identify the compatibility of using SWAT model in a small scale urban watershed. Two main components of my research are ‘hydrology’ and ‘land use change’. A study area near Indiana University (IU) Golf Course has been selected to conduct the research. A new health center…

    • 1222 Words
    • 5 Pages
    Decent Essays
  • Good Essays

    Glacial Lake London was reconstructed based on Dreimanis work, present-day topography, and lacustrine sediments found on top of the Arva Moraine bluffs in Medway Creek. For the first time, the lake is presented in its entirety at a variety of possible water levels. Catastrophic drainage was reconstructed based on breach dimensions, and geomorphic features found in the Komoka spillway area. Both of these approaches suggest that modern peak hydrology generated by snowmelt or rain-induced floods is…

    • 464 Words
    • 2 Pages
    Good Essays
  • Decent Essays

    methods include a modified Tennant method or use of low flow indices that have been used to define the ecological relevance and modified for transferability of techniques across different regions and river types (Tharme, 2003). More structured assessments include complex hydrodynamic habitat modelling. The most common assessment types are the desktop environmental flow methodologies that rely primarily on the use of historical monthly or daily hydrological data (Tharme, 2003). These…

    • 1226 Words
    • 5 Pages
    Decent Essays
  • Good Essays

    CVEN9611 URBAN HYDROLOGY Semester 1, 2016 ASSIGNMENT No: 3 ASSIGNMENT NAME: Urban Hydraulic structures STUDENT NAME & ID NUMBER: Wael Hasanen Mohamed Hasanen – ZID 5033260 EMAIL: wael.hasanen@gmail.com DATE SUBMITTED: 24 May 2016 PLACE SUBMITTTED: Online Via Turnitin Lecturer: Dr. Stefan Felder Introduction Floods are the worst natural disaster in Australia. In 2010-2011, Queensland experienced flash floods. There was big damage to properties and council assists, many…

    • 1367 Words
    • 6 Pages
    Good Essays
  • Decent Essays

    Transportation and Change: The impact from the artificial landscapes of waterway transportation system on the hydrology and economy of the surrounding region. I. Introduction A. To estimate if it is worth changing the landscape to enhance the transportation system, it is critical to give comprehensive evaluations to current cases. B. Dr. McQueary (2006) states in the article “Landscape ecology in transportation planning” that while development of transportation systems benefits humans…

    • 730 Words
    • 3 Pages
    Decent Essays
  • Previous
    Page 1 2 3 4 5 6 7 8 9 32

Related Topics:

Popular Topics: