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Filters Date Range Past year (4) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types OGC WFS Layer (8) OGC WMS Layer (8) OGC WMS Service (8) Downloadable (2) GeoTIFF (1) Contacts Stefanie Kagone Earth Resources Observation and Science (EROS) Center MacKenzie O Friedrichs Matthew P Schauer U.S. Geological Survey - ScienceBase More... Categories Data (2) Publication (2) Tags (with Type=Subject ) water use (3) et modeling (2) evapotranspiration (2) input parameter for ssebop model (2) landsat (2) precipitation (2) remote sensing (2) More... View Results as: JSON ATOM CSV

Global gray-sky dT: the inverse of the surface psychrometric constant parameter in the SSEBop evapotranspiration model The surface psychrometric constant (spc) is a key model parameter in actual evapotranspiration modeling using the Operational Simplified Surface Energy Balance (SSEBop) model for establishing model boundary limits for the dry/bare and wet/vegetated surface conditions. The inverse of the constant (1/spc) represents the temperature difference (dT) between the bare/dry surface and the air temperature at the canopy level. The main output of the SSEBop model is an ET fraction (0-1) and, when combined with reference (“maximum”) ET, produces an actual ET estimate from satellite-observed land surface temperature. This dT is determined using net radiation inputs under gray-sky radiations from the ERA-5 datasets, i.e., Surface... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ET modeling, Global, Hydrology, Remote Sensing, USGS Science Data Catalog (SDC), All tags... input parameter for SSEBop model, net radiation, psychrometric constant, Fewer tags A Web-Based Application for Exploring Potential Changes in Design Peak Flow of US Urban Areas Driven by Land Cover Change Floods have become increasingly prominent in recent decades causing devastating effects on lives and livelihoods worldwide. Efficient tools to assess the drivers of floods, such as increasing urbanization, could help to minimize flood hazards. Urbanization increases the design peak flow (maximum potential surface water flow from a precipitation event with an average probability of occurring once in a specific recurrence interval), which is a key information needed for designing stormwater management infrastructures such as culverts and storm sewers. A web-based application was developed to explore the potential changes (1985 to 2020) in design peak flow of urban areas across the conterminous United States driven... Categories: Publication; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CONUS, Land cover, WebApplication, peak flow data Monthly Satellite-Estimated Precipitation Reports for the Republic of the Marshall Islands (ver. 2.0, February 2024) The Republic of the Marshall Islands (RMI) is a nation of more than thirty low-lying atolls and islands, most of which are inhabited, dispersed across an Exclusive Economic Zone (EEZ) over 770,000 square miles in the tropical central North Pacific Ocean. Monitoring environmental conditions for potential drought risk is challenging in such a dispersed Island nation, and current drought hazard products provide generalities regarding conditions on a broad geographic scale. A team of USGS scientists and managers of natural resources and natural hazards in the RMI used IMERG (Integrated Multi-satellitE Retrievals for GPM) satellite estimates of precipitation to develop content and a template for timely monthly reporting... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ailinglaplap Atoll, Ailuk Atoll, Arno Atoll, Aur Atoll, Ebon Atoll, All tags... Enewetak Atoll, IMERG, Jabat Island, Jaluit Atoll, Kili Island, Kwajalein Atoll, Lae Atoll, Lib Island, Likiep Atoll, Majuro Atoll, Maloelap Atoll, Mejit Island, Mili Atoll, Namdrik Atoll, Namu Atoll, Republic of the Marshall Islands, USGS Science Data Catalog (SDC), Ujae Atoll, Utirik Atoll, Wotho Atoll, Wotje Atoll, precipitation, rainfall index, Fewer tags Forcing and Normalizing Operation (FANO) method for the Operational Simplified Surface Energy Balance (SSEBop) ET model We developed an improved approach to the parameterization of the Operational Simplified Surface Energy Balance (SSEBop) model using the Forcing and Normalizing Operation (FANO). The FANO parameterization was implemented on two computing platforms using Landsat and gridded meteorological datasets: 1) Google Earth Engine (GEE) and 2) Earth Resources Observation and Science (EROS) Center Science Processing Architecture (ESPA). Evaluation was conducted by comparing modeled actual evapotranspiration (ETa) estimates with AmeriFlux Eddy Covariance (EC) and water balance ETa from level-8 Hydrologic Unit Code sub-basins in the conterminous United States for five water-years (Oct-Sep; 2009, 2011, 2013, 2016, 2018). The results... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CONUS, Consumptive Use, Evapotranspiration, Hydrology, Landsat, All tags... Remote Sensing, USGS Science Data Catalog (SDC), Water Resources, Water Use, Fewer tags Characterization of water use and water balance for the croplands of Kansas using satellite, climate, and irrigation data Kansas is one of the most productive agricultural states in the United States, where agricultural irrigation is a primary user of underground and surface water. Because of low precipitation and declining groundwater levels in western and central Kansas, sustainable management of irrigation water resources is a critical issue in the agricultural productivity of the state. The objective of this study is to analyze and characterize the water use and water balance in the croplands of Kansas using satellite observations, meteorological data, and in situ irrigation water use records. We used actual evapotranspiration (ETa), precipitation, soil moisture, and irrigation water use to calculate water balance for Kansas in... Categories: Publication; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Kansas, cropland, irrigation, pumping data, remote sensing, All tags... water balance, water use, Fewer tags High Resolution Daily Global Alfalfa-Reference Potential Evapotranspiration Climatology Global alfalfa-reference potential evapotranspiration (ETr) is a key model parameter in actual evapotranspiration (ETa) modeling for worldwide applications. This dataset was constructed for use with the Operational Simplified Surface Energy Balance (SSEBop) model as a key driver of the final ETa magnitude. SSEBop is a parametric energy balance-based model that determines actual ET as the product of two independent estimates: 1) the SSEBop modeled ET fraction (ETf), an index nominally varying between 0 and 1 and derived from observed Landsat surface temperature using satellite psychrometry, and 2) the potential ET (maximum) under environmental conditions for an alfalfa crop (in millimeters). As SSEBop ETf can now... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Climatology, ET modeling, Global, Hydrology, Reference Evapotranspiration, All tags... Remote Sensing, USGS Science Data Catalog (SDC), Water Resources, evaporation, input parameter for SSEBop model, potential evapotranspiration, transpiration, Fewer tags Annual Water-Year SSEBop Landsat 30-meter Actual Evapotranspiration (ETa) rasters for 5 years between 2009-2018 using the Forcing and Normalizing Operation CONUS-wide annual water-year actual ET (ETa) data using Landsat resolution satellite imagery from the Operational Simplified Surface Energy Balance (SSEBop) model (version 2.6) with the Forcing and Normalizing Operation (FANO) parameterization. Raster data products were generated for five (5) water-years (Oct-Sep; 2009, 2011, 2013, 2016, 2018). Data and metadata is provided for individual GeoTIFF tiles distributed in the UTM Zone in which it lies, available for each water-year. Categories: Data; Types: GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Conterminous United States (CONUS), Evapotranspiration, Landsat, Water use Bias estimation for seven precipitation datasets for the eastern MENA region Information on the spatio-temporal distribution of rainfall is critical for addressing water-related disasters, especially in the Middle East and North Africa's (MENA) arid to semi-arid regions. However, the availability of reliable rainfall datasets for most river basins is limited. In this study, we utilized observations from satellite-based rainfall data, in situ rain gauge observations, and rainfall climatology to determine the most suitable precipitation dataset in the MENA region. First, we evaluated seven different rainfall products (CPC, GPCC, TRMM, PERSIANN, RFE, CHIRPS, MSWEP) using rain gauge observations obtained from Jordan (139 stations), Palestine (9 stations), and Lebanon (16 stations). The validation... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Jordan, Lebanon, MENA, USGS Science Data Catalog (SDC), bias estimation, All tags... evaluation, none, precipitation, Fewer tags