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英文字典中文字典相关资料:


  • Desert Hydrology Manual for Improved Highway Design Methods (CA)
    The current regional regression equations in USGS Water-Supply Paper 2433 and Water-Resources Investigations 77-21 were found to not adequately represent the watershed conditions in California’s deserts
  • Mojave Desert Ecoregion | USGS Science Data Catalog
    Mojave Desert Ecoregion This is a shapefile of the Mojave Desert, which was used as our study area boundary (MojaveEcoregion_TNS_UTM83 shp)
  • Estimation of Perennial Vegetation Cover Distribution in the Mojave . . .
    We used stepwise linear regression and simple linear regression analyses to create two models of total perennial cover for the Mojave Desert In both models, the depen-dent data were measures of cover measured in the field using the line-intercept method
  • Hydrologic characterization of desert soils with varying degrees of . . .
    To understand their relation to pedogenic development, soil hydraulic properties in the Mojave Desert were investi- gated for three deposit types: (i) recently deposited sediments in an active wash, (ii) a soil of early Holocene age, and (iii) a highly developed soil of late Pleistocene age
  • Region-Specific Analysis | UpCodes
    Newly developed equations for California's Desert regions are shown on Table 819 7A While the regression equations for the Northern Basin and Range region provide more accurate results than previous USGS developed equations, there is some uncertainty associated with them
  • Mojave Region Groundwater | USGS
    Since 1992, the U S Geological Survey (USGS), in cooperation with the Mojave Water Agency (MWA), has constructed a series of regional water-table maps for intermittent years in a continuing effort to monitor groundwater conditions in the Mojave River and Morongo groundwater basins
  • Mojave Desert | U. S. Geological Survey - USGS. gov
    Land subsidence has been ongoing in the dry lake beds throughout the Mojave and Morongo groundwater basins since the 1960s In a study conducted from 2004 - 2009, continuous GPS stations were added to interferometric synthetic aperture radar (InSAR) methods to measure changes in land surface altitude
  • USGS Open-File Report 1100
    Soil moisture models are being developed through the Recoverability and Vulnerability of Desert Ecosystems (RVDE) program, which is an interdisciplinary, ecosystem-based pro-gram designed to create scientific tools for land managers to use as they work to conserve and restore desert landscapes
  • Summary of CALIFORNIA Flood-Frequency Techniques - USGS
    California is divided into six hydrologic regions (fig 1) The regression equations developed for these regions are for estimating peak discharges (QT) having recurrence intervals T that range from 2 to 100 years





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