Vegetation
Normalized Difference Vegetation Index (NDVI) images produced from NASA's Land, Atmosphere Near real-time Capability for EOS (LANCE) data are used to monitor vegetation and crop condition. There are several global/regional scale systems in place that report on drought, food shortages and forecasting crop yields including the USGS Famine Early Warning Systems Network (FEWS NET) and Group on Earth Observations (GEO) Global Agricultural Monitoring (GEOGLAM) crop monitor.
- Register for an Earthdata Login to start downloading data.
- Read the LANCE disclaimer for more information about using the data.
Learn more:
- Agricultural and Water Resources Data Pathfinder
- Biological Diversity and Ecological Forecasting Data Pathfinder
- Biodiversity Toolkit
Corrected Reflectance Imagery
MODIS and VIIRS Corrected Reflectance imagery are available only as near real-time imagery. The imagery can be visualized in Worldview and Global Imagery Browse Services (GIBS). More:
Information on MODIS Corrected Reflectance Imagery layers including
- Corrected Reflectance True Color (Bands 1-4-3)
- Corrected Reflectance (Bands 3-6-7)
- Corrected Reflectance (Bands 7-2-1)
Information on VIIRS Corrected Reflectance Imagery layers including
- Corrected Reflectance True Color (Bands I1-M4-M3)
- Corrected Reflectance (Bands M3-I3-M11)
- Corrected Reflectance (Bands M11-I2-I1)
Browse Corrected Reflectance imagery in Worldview
For more on the difference between Corrected Reflectance and Surface Reflectance Imagery
Land Surface Reflectance
In comparison with the MODIS Corrected Reflectance product, the MODIS Land Atmospherically Corrected Surface Reflectance product (MOD09) is a more complete atmospheric correction algorithm that includes aerosol correction, and is designed to derive land surface properties.
Product: Instrument, Platform and Download Link |
Description |
Browse imagery in Worldview |
MODIS (Aqua) MYD09
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doi:10.5067/MODIS/MYD09.NRT.006 (Aqua) and doi:10.5067/MODIS/MOD09.NRT.006 (Terra)
More information on MODIS Land Surface Reflectance Products including:
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VIIRS (Suomi NPP) VNP09_NRT |
VIIRS Land Surface Reflectance |
Coming soon |
Land Surface Temperature
Land Surface Temperature layer shows the temperature of the land surface in Kelvin (K). This measurement differs from air temperature measurements as it provides the temperature of whatever is on the surface of the earth for example, bare sand in the desert, ice and snow covered area, a leaf covered tree canopy and even the temperature of man-made buildings and roads. Land Surface Temperature is useful for monitoring changes in weather and climate patterns and used in agriculture to allow farmers to evaluate water requirements for wheat, or determine frost damage in orange groves.
Product: Instrument, Platform and Download Link |
Description |
Browse imagery in Worldview |
MODIS (Terra) MOD11_L2 MODIS (Aqua) MYD11_L2 |
MODIS Land Surface Temperature and Emissivity The MODIS Land Surface Temperature and Emissivity (LST&E) product is available from both Terra and Aqua satellites. The sensor and imagery resolution is 1 km, and the temporal resolution is daily. doi:10.5067/MODIS/MOD11_L2.NRT.006 and doi:10.5067/MODIS/MYD11_L2.NRT.006 |
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VIIRS (Suomi NPP) VNP21_NRT | VIIRS Land Surface Temperature and Emissivity |
Coming soon. Browse in LANCE-MODIS |
Snow Cover
The MODIS snow cover layer shows the presence of snow cover over land and water bodies as an index related to the presence of snow. It is based on a Normalized Difference Snow Cover Index (NDSI) that is derived from the cloud free snow reflectance sensed by the MODIS instrument, and hence this layer shows presence of snow during day time and under cloud clear condition only. NDSI snow cover though could be retrieved in the valid range of (0, 1.0) at every pixel, additional tests like surface temperature screening linked with the surface height is used for accurate detection. Snow is precipitation that forms from water vapor in the atmosphere where temperatures are below 0° Celsius. If the ground temperature is also below freezing, snow will accumulate on the ground as bright, white layer of snowpack. Snow cover reflects sunlight back into the atmosphere, helping to cool the Earth’s surface. Snowmelt is used for drinking water, water for crop irrigation, and can moisturize soil to reduce the risk of wildfire in many areas in the world. When snow melts in the spring, too much snow can cause springtime flooding.
Product and Download Link |
Description |
Browse imagery in Worldview |
MODIS (Terra) MOD10_L2 MODIS (Aqua) MYD10_L2 |
MODIS Snow Cover The MODIS Snow Cover layer is available from both the Terra and Aqua satellites. The sensor and imagery resolution is 500 m and the temporal resolution is daily. DOI: doi:10.5067/MODIS/MOD10_L2.NRT.006 and doi:10.5067/MODIS/MYD10_L2.NRT.006 |
NDVI from MODIS Terra, over Queensland after heavy rains
Visualize NRT data related to Vegetation in Worldview
Read more about monitoring vegetation from NASA's Earth Observatory.
Page Last Updated: Dec 28, 2020 at 3:06 PM EST