MODIS/Terra Near Real Time (NRT) Surface Reflectance Daily L2G Global 500m SIN Grid NRT
The MODIS/Terra Near Real Time (NRT) Surface Reflectance Daily L2G Global 500m SIN Grid Near Real Time (NRT) product, MOD09GHK, is a seven-band product computed from the MODIS Level 1B land Bands 1 through 7. The product is an estimate of the surface spectral reflectance for each band as it would have been measured at ground level if there were no atmospheric scattering or absorption. The correction scheme includes corrections for the effect of atmospheric gases, aerosols, and thin cirrus clouds; it is applied to all Level 1B pixels that pass the Level 1B quality control. The correction uses Band 26 to detect cirrus clouds, the approach used in MOD04 and MOD05 for water vapor, aerosol correction, and NCEP for ozone; the best available climatology data are used if the MODIS water vapor, aerosol, or ozone products are unavailable. The Level 2G surface reflectance product is the input for the generation of several land products: 8-day Surface Reflectance, Vegetation Indices (VIs), Bidirectional Reflectance Distribution Function (BRDF), thermal anomaly, snow/ice, and Fraction of Photosynthetically Active Radiation/Leaf Area Index (FPAR/LAI).
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| Spatial Extent: | Bounding Rectangle: N: 90.0 S: -90.0 E: 180.0 W: -180.0 |
Data Format(s): | Archive: HDF-EOSDistribution: HDF-EOS |
| Temporal Extent: | Platform(s): | Terra | |
| Data Center(s): | NASA/GSFC/EOS/ESDIS/LANCE MODIS | Instrument(s): | MODIS |
| Version: | 6.1NRT | ||
- Title: MODIS/Terra Surface Reflectance Daily L2G Global 500m SIN Grid NRT
- Version: 6.1NRT
- Creator: LANCEMODIS
- Publisher: The Land, Atmosphere Near real-time Capability for EOS (LANCE)
- Release Date: 2021-02-07T00:00:00.000Z
Collection Information
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DOI
10.5067/MODIS/MOD09GHK.NRT.061
https://doi.org/
Data Identification
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Processing Level
2G
- Quality Overall NRT products match to operational with some expected minor differences from use of different ancillaries and ephemeris. There aren't any data gaps or data artifacts. Information on comparison of C5 Operational and NRT Atmospheric Products is posted at: http://lance.modaps.eosdis.nasa.gov/data_products/comparison.html. Information on comparison of C6 Operational and NRT Atmospheric and Land Products is posted at: http://lance3.modaps.eosdis.nasa.gov/data_products/comparison_atmos.html and http://lance3.modaps.eosdis.nasa.gov/data_products/comparison_land.html.
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Collection Progress
Active
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Use Constraints
None. See disclaimer: https://earthdata.nasa.gov/data/near-real-time-data/about-lance/disclaimer.
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Access Constraints
Users need to register with Earthdata to access data. Please visit the Earthdata Login at https://earthdata.nasa.gov/urs/register to register for a username and password.
Data Dates
| Creation |
Other Descriptive Keywords
Ancillary Keywords
- LANCE
- Near Real Time
- RELATIVE_START_DATE: -11
ISO Topic Categories
- CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
- GEOSCIENTIFIC INFORMATION
Additional Attributes
- Name: TileId INT Description: Not provided
- Name: ScienceQualityFlag STRING Description: Not provided
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| Terra | No campaigns listed. | No dates provided. |
Temporal Information
Spatial Information
Generic Resolutions
Generic Resolution 1
X Dimension500.0 Meters
Y Dimension500.0 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
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NASA/GSFC/EOS/ESDIS/LANCE MODIS
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.
Data Contacts
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MODAPS USER SUPPORT TEAM
Technical ContactMODAPS USER SUPPORT TEAM
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MODAPS User Support Team
NASA/GSFC
Mail Code: 619
Greenbelt, 20771
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NEAL DEVINE
Technical ContactNEAL DEVINE
This contact does not have any addresses listed.
This contact does not have any contact mechanisms listed.
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GANG YE
Technical ContactGANG YE
This contact does not have any addresses listed.
This contact does not have any contact mechanisms listed.
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ASAD ULLAH
Metadata AuthorASAD ULLAH
This contact does not have any addresses listed.
This contact does not have any contact mechanisms listed.
Archive And Distribution Information
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Format: HDF-EOS
Format Type: Native
Average File Size: 75.0 MB
Total Collection File Size Begin Date: 2021-02-07T00:00:00.000Z
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Format: HDF-EOS
Format Type: Native
Media: Onlline (https)
Average File Size: 75.0 MB
Total Collection File Size Begin Date: 2021-02-07T00:00:00.000Z
Fees: NO Fee