Skip to main content
Advanced Search

Filters: Types: OGC WMS Layer (X) > Types: OGC WMS Service (X) > partyWithName: Matthew P Schauer (X)

9 results (66ms)   

View Results as: JSON ATOM CSV
CONUS-wide actual ET (ETa) from Landsat thermal imagery-using the Operational Simplified Surface Energy Balance (SSEBop) model (version 4) in the Google Earth Engine (GEE) cloud computing platform. Over 150,000 Landsat satellite images were used to produce 10 years of annual ETa (2010-2019).
thumbnail
The associated geotiff rasters represents the total actual evapotranspiration (ETa) from June through September for the years 2004, 2006, 2008-2010, and 2013-2016 for the entire Klamath Basin in southern Oregon. The ETa was created using Landsat imagery and the Operational Simplified Surface Energy Balance (SSEBop) model to estimate actual ET and the Python scripts to complete that process is also provided. Additionally, the June-September average (mean) ETa for the "base years" of 2004, 2006, 2008-2010 and ETa Anomaly (deviation from the base years average mean) for each year between 2013-2016 is provided. Text files of SSEBop daily actual ET along with actual ET from Ameriflux eddy co-variance flux tower sites...
thumbnail
The Landsat Collection 2 Provisional Actual Evapotranspiration Science Product is available for download from https://espa.cr.usgs.gov/. Actual Evapotranspiration (ETa) is the quantity of water that is removed from a surface due to the processes of evaporation and transpiration and is measured in millimeters (mm). ETa can be fundamental in the understanding of the spatiotemporal dynamics of water use over land surfaces. Landsat Collection 2 (C2) Provisional ETa Science Products are available globally for Landsat 4-5 Thematic Mapper (TM), Landsat 7 Enhanced Thematic Mapper Plus (ETM+), and Landsat 8-9 Operational Land Imager/Thermal Infrared Sensor (OLI/TIRS) scenes that can be successfully processed to C2 Level-2...
thumbnail
The estimation and mapping of actual evapotranspiration (ETa) is an active area of applied research in the fields of agriculture and water resources. Thermal remote sensing-based methods, using coarse resolution satellites, have been successful at estimating ETa over the conterminous United States (CONUS) and other regions of the world. In this study, we present CONUS-wide ETa from Landsat thermal imagery-using the Operational Simplified Surface Energy Balance (SSEBop) model in the Google Earth Engine (GEE) cloud computing platform. Over 150,000 Landsat satellite images were used to produce 10 years of annual ETa (2010-2019). The accuracy assessment of the SSEBop results included point-based evaluation using monthly...
thumbnail
Understanding how different crops use water over time is essential for planning and managing water allocation, water rights, and agricultural production. The main objective of this paper is to characterize the spatiotemporal dynamics of crop water use in the Central Valley of California using Landsat-based annual actual evapotranspiration (ETa) from 2008 to 2018 derived from the Operational Simplified Surface Energy Balance (SSEBop) model. Crop water use for 10 crops is characterized at multiple scales. The Mann–Kendall trend analysis revealed a significant increase in area cultivated with almonds and their water use, with an annual rate of change of 16,327 ha in area and 13,488 ha-m in water use. Conversely, alfalfa...
thumbnail
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...
thumbnail
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...
thumbnail
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...
thumbnail
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.
    map background search result map search result map Assessing the impact of irrigation curtailment using Landsat satellite data: A case study in the Upper Klamath Lake basin Actual Evapotranspiration at Landsat scale for CONUS from 2010-2019 Annual SSEBop ET rasters at Landsat scale from 2010-2019 for the CONUS High Resolution Daily Global Alfalfa-Reference Potential Evapotranspiration Climatology Forcing and Normalizing Operation (FANO) method for the Operational Simplified Surface Energy Balance (SSEBop) ET model Annual Water-Year SSEBop Landsat 30-meter Actual Evapotranspiration (ETa) rasters for 5 years between 2009-2018 using the Forcing and Normalizing Operation ESPA Global ET Characterizing crop water use dynamics in the Central Valley of California using landsat-derived evapotranspiration Characterization of water use and water balance for the croplands of Kansas using satellite, climate, and irrigation data Assessing the impact of irrigation curtailment using Landsat satellite data: A case study in the Upper Klamath Lake basin Characterization of water use and water balance for the croplands of Kansas using satellite, climate, and irrigation data Characterizing crop water use dynamics in the Central Valley of California using landsat-derived evapotranspiration Forcing and Normalizing Operation (FANO) method for the Operational Simplified Surface Energy Balance (SSEBop) ET model Annual Water-Year SSEBop Landsat 30-meter Actual Evapotranspiration (ETa) rasters for 5 years between 2009-2018 using the Forcing and Normalizing Operation Actual Evapotranspiration at Landsat scale for CONUS from 2010-2019 Annual SSEBop ET rasters at Landsat scale from 2010-2019 for the CONUS High Resolution Daily Global Alfalfa-Reference Potential Evapotranspiration Climatology ESPA Global ET