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Vegetation, Water and Climate Dynamics

At EROS we use satellite, climate, and environmental data to study the health and extent of crops, forests, mangroves, grasslands, and other types of vegetation, and to document how plant communities are changing over time. We work with other agencies to map water resources, monitor water use, and assess the risk of drought in locations ranging from the prairie potholes of the upper Great Plains to waterholes in sub-Saharan Africa. Our research also involves assessing fire fuels and forecasting fire danger across the nation. 

Filter Total Items: 44

USGS EROS Archive - Vegetation Monitoring - eVIIRS Land Surface Temperature (LST)

The EROS Visible Infrared Imaging Radiometer Suite (eVIIRS) Land Surface Temperature (LST) collection is based on the Visible Infrared Imaging Radiometer Suite (VIIRS) data acquired by this VIIRS instrument. VIIRS is aboard the joint NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) and NOAA-20 satellites.
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USGS EROS Archive - Vegetation Monitoring - eVIIRS Land Surface Temperature (LST)

The EROS Visible Infrared Imaging Radiometer Suite (eVIIRS) Land Surface Temperature (LST) collection is based on the Visible Infrared Imaging Radiometer Suite (VIIRS) data acquired by this VIIRS instrument. VIIRS is aboard the joint NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) and NOAA-20 satellites.
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USGS EROS Archive - Vegetation Monitoring - EROS Visible Infrared Imaging Radiometer Suite (eVIIRS)

The Earth Resources Observation and Science (EROS) Center Visible Infrared Imaging Radiometer Suite (eVIIRS) collection is based on the Suomi National Polar-orbiting Partnership (S-NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) data acquired by the NPP, which is the result of a partnership between the National Aeronautics and Space Administration (NASA) and the National Oceanic and...
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USGS EROS Archive - Vegetation Monitoring - EROS Visible Infrared Imaging Radiometer Suite (eVIIRS)

The Earth Resources Observation and Science (EROS) Center Visible Infrared Imaging Radiometer Suite (eVIIRS) collection is based on the Suomi National Polar-orbiting Partnership (S-NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) data acquired by the NPP, which is the result of a partnership between the National Aeronautics and Space Administration (NASA) and the National Oceanic and...
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USGS EROS Archive - Vegetation Monitoring - eMODIS Land Surface Temperature

The EROS Moderate Resolution Imaging Spectroradiometer (eMODIS) Land Surface Temperature (LST) collection is based on the Moderate Resolution Imaging Spectroradiometer (MODIS) data acquired by the National Aeronautics and Space Administration's (NASA) Earth Observing System (EOS).
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USGS EROS Archive - Vegetation Monitoring - eMODIS Land Surface Temperature

The EROS Moderate Resolution Imaging Spectroradiometer (eMODIS) Land Surface Temperature (LST) collection is based on the Moderate Resolution Imaging Spectroradiometer (MODIS) data acquired by the National Aeronautics and Space Administration's (NASA) Earth Observing System (EOS).
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Near-Real-Time Cheatgrass Monitoring

The USGS Earth Resources Observation and Science (EROS) Center produces near-real-time estimates of annual herbaceous land cover for the Great Basin, Snake River Plain, Wyoming, and contiguous areas in the United States. Estimates are based on enhanced Moderate Resolution Imaging Spectroradiometer (eMODIS) Normalized Difference Vegetation Index (NDVI) data at 250-meter resolution.
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Near-Real-Time Cheatgrass Monitoring

The USGS Earth Resources Observation and Science (EROS) Center produces near-real-time estimates of annual herbaceous land cover for the Great Basin, Snake River Plain, Wyoming, and contiguous areas in the United States. Estimates are based on enhanced Moderate Resolution Imaging Spectroradiometer (eMODIS) Normalized Difference Vegetation Index (NDVI) data at 250-meter resolution.
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Monitoring Arctic and boreal ecosystems through the assimilation of field-based studies, remote sensing, and modelling

Northern high-latitude regions are experiencing climate warming at rates nearly double that of lower latitudes, leading to warming and thawing of permafrost-affected soils, decomposition of previously frozen organic matter and increases in the number of large fire years, which can substantially impact social and environmental systems. Monitoring Arctic and boreal ecosystems of northern latitudes...
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Monitoring Arctic and boreal ecosystems through the assimilation of field-based studies, remote sensing, and modelling

Northern high-latitude regions are experiencing climate warming at rates nearly double that of lower latitudes, leading to warming and thawing of permafrost-affected soils, decomposition of previously frozen organic matter and increases in the number of large fire years, which can substantially impact social and environmental systems. Monitoring Arctic and boreal ecosystems of northern latitudes...
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EDNA Stage 1B Seamless Process

The EDNA Stage1B process involves collecting the raw data from the EDNA cooperators, performing QA/QC checks on the raw data, and preparing the data for Stage II of the project. ArcInfo amls are executed to create the seamless database, and ArcView tools are utilized to determine seamless accuracy. The Stage 1B database development provides seamless drainage basin delineations and synthetic...
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EDNA Stage 1B Seamless Process

The EDNA Stage1B process involves collecting the raw data from the EDNA cooperators, performing QA/QC checks on the raw data, and preparing the data for Stage II of the project. ArcInfo amls are executed to create the seamless database, and ArcView tools are utilized to determine seamless accuracy. The Stage 1B database development provides seamless drainage basin delineations and synthetic...
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EDNA Stage 3 Processing Steps (Conflation)

The results from the Stage 2 delineation will be incorporated into the EDNA development process. Drainage basin areas and synthetic streamline locations found to be in error at Stage 2 will be reanalyzed and, if necessary, the DEM will be reprocessed to ensure that the newly derived streamlines and basin boundaries are consistent with those developed in Stage 2. Delineations derived in this...
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EDNA Stage 3 Processing Steps (Conflation)

The results from the Stage 2 delineation will be incorporated into the EDNA development process. Drainage basin areas and synthetic streamline locations found to be in error at Stage 2 will be reanalyzed and, if necessary, the DEM will be reprocessed to ensure that the newly derived streamlines and basin boundaries are consistent with those developed in Stage 2. Delineations derived in this...
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EDNA Stage 2 Vector Editing

The delineations produced in Stage 1 are passed on to appropriate cooperators, who will provide an intensive QA/QC. The derived watersheds will be overlain on 1:24,000 map sheets (as DRGs) and the watershed boundaries will be revised using standard vector editing techniques. These revised boundaries will provide the Stage 2 delineation. Watershed areas found to be in conflict with the DRGs will be...
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EDNA Stage 2 Vector Editing

The delineations produced in Stage 1 are passed on to appropriate cooperators, who will provide an intensive QA/QC. The derived watersheds will be overlain on 1:24,000 map sheets (as DRGs) and the watershed boundaries will be revised using standard vector editing techniques. These revised boundaries will provide the Stage 2 delineation. Watershed areas found to be in conflict with the DRGs will be...
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EDNA Stage 1 Blind Pass Processing Steps

Using well-tested GIS techniques, the NED database is being processed into a Stage 1 EDNA product. The bulk of this work is being done by the National Weather Service's Severe Storms Laboratory (NSSL) in Norman, Oklahoma. Additional processing is currently being provided by the USGS WRD office in Sacramento, California.
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EDNA Stage 1 Blind Pass Processing Steps

Using well-tested GIS techniques, the NED database is being processed into a Stage 1 EDNA product. The bulk of this work is being done by the National Weather Service's Severe Storms Laboratory (NSSL) in Norman, Oklahoma. Additional processing is currently being provided by the USGS WRD office in Sacramento, California.
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Water Balance and Soil Moisture

Evapotranspiration (ET) rates – the combination of evaporation from soil and transpiration from plants – are powerful tools in the management of scarce water resources.Taken alone, however, those rates leave unanswered questions about water sources, questions that can offer guidance and insight on challenging decisions in areas reliant on irrigation.Researchers at EROS work to offer that insight...
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Water Balance and Soil Moisture

Evapotranspiration (ET) rates – the combination of evaporation from soil and transpiration from plants – are powerful tools in the management of scarce water resources.Taken alone, however, those rates leave unanswered questions about water sources, questions that can offer guidance and insight on challenging decisions in areas reliant on irrigation.Researchers at EROS work to offer that insight...
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Identifying Lands Suitable for Biofuel Feedstock Crops by Dynamic Modeling of Ecosystem Performance

Demand for biofuel products is expected to increase as the world seeks alternatives to fossil fuels. Currently, ethanol produced from Midwest corn is the most common biofuel product in the United States. The negative environmental effects caused by corn-based biofuel development include soil erosion, water quality impairment from pesticides and fertilizer, and demand for water for irrigation. The...
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Identifying Lands Suitable for Biofuel Feedstock Crops by Dynamic Modeling of Ecosystem Performance

Demand for biofuel products is expected to increase as the world seeks alternatives to fossil fuels. Currently, ethanol produced from Midwest corn is the most common biofuel product in the United States. The negative environmental effects caused by corn-based biofuel development include soil erosion, water quality impairment from pesticides and fertilizer, and demand for water for irrigation. The...
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Carbon Flux Quantification in the Great Plains

Gross primary production (GPP) and ecosystem respiration (Re) are the fundamental environmental characteristics which drive carbon exchanges between terrestrial ecosystems and the atmosphere (Chapin and others, 2009), although other exchanges of carbon, for example, export or direct oxidation (Lovett and others, 2006) can modify net ecosystem production (NEP).
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Carbon Flux Quantification in the Great Plains

Gross primary production (GPP) and ecosystem respiration (Re) are the fundamental environmental characteristics which drive carbon exchanges between terrestrial ecosystems and the atmosphere (Chapin and others, 2009), although other exchanges of carbon, for example, export or direct oxidation (Lovett and others, 2006) can modify net ecosystem production (NEP).
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