The Near Real Time (NRT) VIIRS Land Surface Temperature and Emissivity 6-Min L2 Swath product uses a physics-based algorithm to dynamically retrieve both the LST and emissivity simultaneously for the three VIIRS thermal infrared bands M14 (8.55 micrometer), M15 (10.76 micrometer), and M16 (12 micrometer) at a spatial resolution of 750 m at nadir. The VNP21 algorithm is based on the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Temperature Emissivity Separation (TES) algorithm. This algorithm uses full radiative transfer simulations for the atmospheric correction, and an emissivity model based on the variability in the surface radiance data to dynamically retrieve both LST and spectral emissivity at native pixel resolution. Additional details regarding the methodology are available in the Algorithm Theoretical Basis Document (ATBD) at https://viirsland.gsfc.nasa.gov/PDF/VNP21_LSTE_ATBD_v2.1.pdf.
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Spatial Extent: | Bounding Rectangle: N: 90.0 S: -90.0 E: 180.0 W: -180.0 |
Data Format(s): | Distribution: NetCDF |
Temporal Extent: | Platform(s): | SUOMI-NPP | |
Data Center(s): | NASA/GSFC/EOS/ESDIS/LANCEMODIS | Instrument(s): | VIIRS |
Version: | 1 |
doi:10.5067/VIIRS/VNP21_NRT.001
Creation |
2
Active
None. See disclaimer: https://earthdata.nasa.gov/data/near-real-time-data/about-lance/disclaimer
No constraints but users need to be registered with the ESDIS User Registration system (https://urs.eosdis.nasa.gov/users/new) to download files via the download site.
Project Short Name | Campaigns | Project Dates |
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LANCE | No campaigns listed. | No dates provided. |
Coverage Type | Zone Identifier | Geometry | Granule Representation |
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HORIZONTAL | CARTESIAN | GEODETIC |
750 Meters
750 Meters
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Format: NetCDF
Format Type: Native
Media: Online (http)
Fees: No Fee