VIIRS/NPP Land Surface Temperature and Emissivity 6-Min L2 Swath 750m
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.
| Science Keywords: |
|
||
| 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 | ||
- Title: VIIRS/NPP Land Surface Temperature and Emissivity 6-Min L2 Swath 750m
- Version: 1
- Creator: LANCEMODIS
- Publisher: LANCEMODIS
- Release Date: 2018-09-01T00:00:00.000Z
- Other Citation Details: This data set was provided by the NASA/NOAA NPP Project.
- Linkage: http://dx.doi.org/10.5067/VIIRS/VNP21_NRT.001
- GENERAL DOCUMENTATION: https://landweb.modaps.eosdis.nasa.gov/NPP_QA/, VIIRS QA information at VIIRS Land Product Quality Assessment web
- GENERAL DOCUMENTATION: http://dx.doi.org/10.5067/VIIRS/VNP21_NRT.001, Product's DOI landing web
- USER'S GUIDE: https://viirsland.gsfc.nasa.gov/PDF/VNP21_LSTE_user_guide.pdf, User guide at VIIRS Land page
Collection Information
-
Version Description
NRT Collection Version 1 Processing and Reprocessing -
DOI
doi:10.5067/VIIRS/VNP21_NRT.001
Data Identification
-
Processing Level
2
- Quality This is a near real-time (NRT) product that has undergone expedited processing to make it available within 3 hours of observation time to meet the needs of the NRT applications community. NRT data are subject to geolocation errors or reprocessing. Usually the geolocationalerrors are minimal (less than 100 meters), however, there are situations, particularly before and after spacecraft maneuvers and during space weather events, when the difference can increase up to several kilometers.
-
Collection Progress
Active
-
Use Constraints
None. See disclaimer: https://earthdata.nasa.gov/data/near-real-time-data/about-lance/disclaimer
-
Access Constraints
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.
Data Dates
| Creation |
Other Descriptive Keywords
ISO Topic Categories
- IMAGERY/BASE MAPS/EARTH COVER
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| LANCE | No campaigns listed. | No dates provided. |
Temporal Information
Spatial Information
Generic Resolutions
Generic Resolution 1
X Dimension750 Meters
Y Dimension750 Meters
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | GEODETIC |
Resolution and Coordinate System
Horizontal Data Resolution
Location Keywords
- GEOGRAPHIC REGION
- GLOBAL
Data Centers
-
NASA/GSFC/EOS/ESDIS/LANCEMODIS
ARCHIVERLand, Atmosphere Near real-time Capability for EOS (LANCE)Moderate Resolution Imaging Spectroradiometer (MODIS)
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
-
NASA/GSFC/EOS/ESDIS/LANCEMODIS
PROCESSORLand, Atmosphere Near real-time Capability for EOS (LANCE)Moderate Resolution Imaging Spectroradiometer (MODIS)
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
Data Contacts
-
LANCEMODIS
Technical ContactLANCEMODIS
This contact does not have any addresses listed.
-
Data Center Contact
NASA/GSFC/EOS/ESDIS/LANCEMODISThis contact does not have any addresses listed.
-
Not provided
Data Center ContactNot provided
NASA/GSFC/EOS/ESDIS/LANCEMODISThis contact does not have any addresses listed.
This contact does not have any contact mechanisms listed.
Archive And Distribution Information
-
Format: NetCDF
Format Type: Native
Media: Online (http)
Fees: No Fee