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Presents descriptions of the USGS Precipitation Runoff Modeling System (PRMS) cascading-flow computation option, which allows for reinfiltration across the land surface, shallow subsurface, and saturated zone

Did you know that tree canopy cover can be measured from space? The Moderate Resolution Imaging Spectroradiometer (MODIS) sensor onboard NASA’s Terra and Aqua satellites can do just that by providing data that are used to calculate Leaf Area Index (LAI). LAI is a measurement of green leaf area in broadleaf tree canopies and needle surface area in coniferous tree canopies. This data visualization shows the changes in tree canopy cover over the conterminous United States from January 1, 2015 to September 29, 2016, using 8-day, 500 meter resolution Terra/Aqua combined MODIS Version 6 LAI data (MCD15A2H). These data are archived and distributed by NASA’s Land Processes Distributed Active Archive Center (LP DAAC), located at the U.S. Geological Survey’s Earth Resources Observation and Science (EROS) Center. LP DAAC: https://lpdaac.usgs.gov Terra/Aqua MODIS LAI, 8-day data: https://doi.org/10.5067/MODIS/MCD15A2...

USGS EROS | How To Search and Download Satellite Imagery This tutorial shows you how to search EarthExplorer using the interactive map interface.

This video focuses on the National Aeronautics and Space Administration’s (NASA) Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Version 6 land data distributed by NASA’s Land Processes Distributed Active Archive Center (LP DAAC).

This video will cover how to learn more about MODIS Version 6 data using the LP DAAC website, the MODIS file naming convention, and the external metadata.

For more information on MODIS Version 6 data and other data distributed by the LP DAAC please visit https://lpdaac.usgs.gov/. The LP DAAC is one of twelve NASA Earth Observing System Data and Information System (EOSDIS) DAACs. It is located at the USGS Earth Resources Observation and Science (EROS) Center in Sioux Falls, South Dakota. The LP DAAC ingests, archives, processes and distributes NASA Earth science land processes data and information.

The seasonal progression of global vegetation is driven by the tilt of the Earth's rotational axis and its annual orbit around the Sun. In turn, global seasonality drives major changes in important environmental factors such as global atmospheric carbon dioxide concentrations. This data visualization illustrates this phenomenon using weekly Enhanced Vegetation Index 2 (EVI2) data, from the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Vegetation Index and Phenology (VIP) Version 4 collection. The VIP collection is derived from data collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard the NASA Aqua and Terra satellites, the Advanced Very High Resolution Radiometer (AVHRR), and the Satellite Pour l’Observation de la Terre (SPOT). Data from the VIP collection provide 34 years of consistent, sensor-independent global records for vegetation indices and land surface phenology that can be used to observe the seasonal progression of global vegetation. The data are distributed by NASA’s Land Processes Distributed Active Archive Center (LP DAAC), located at the USGS Earth Resources Observation and Science (EROS) Center. For more information: LP DAAC: https://lpdaac.usgs.gov/ NASA MEaSUREs VIP Collection 4: https://doi.org/10.5067/MEaSUREs/VIP/...