MODIS/Terra Vegetation Indices 16-Day L3 Global 500m SIN Grid V006
The MOD13A1 Version 6 product provides Vegetation Index (VI) values at a per pixel basis at 500 meter (m) spatial resolution. There are two primary vegetation layers. The first is the Normalized Difference Vegetation Index (NDVI), which is referred to as the continuity index to the existing National Oceanic and Atmospheric Administration-Advanced Very High Resolution Radiometer (NOAA-AVHRR) derived NDVI. The second vegetation layer is the Enhanced Vegetation Index (EVI), which has improved sensitivity over high biomass regions. The algorithm for this product chooses the best available pixel value from all the acquisitions from the 16 day period. The criteria used is low clouds, low view angle, and the highest NDVI/EVI value. Provided along with the vegetation layers and two quality assurance (QA) layers are reflectance bands 1 (red), 2 (near-infrared), 3 (blue), and 7 (mid-infrared), as well as four observation layers. Improvements/Changes from Previous Versions * The 16-day composite VI is generated using the two 8-day composite surface reflectance granules (MOD09A1) (https://doi.org/10.5067/MODIS/MOD09A1.006) in the 16-day period. * This surface reflectance input is based on the minimum blue compositing approach used to generate the 8-day surface reflectance product. * The product format is consistent with the Version 5 product generated using the Level 2 gridded daily surface reflectance product. * A frequently updated long-term global Climate Modeling Grid (CMG) Average Vegetation Index product database is used to fill the gaps in the CMG product suite.
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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): | LP DAAC | Instrument(s): | MODIS |
| Version: | 006 | ||
- USER'S GUIDE: https://lpdaac.usgs.gov/documents/103/MOD13_User_Guide_V6.pdf, The technical information in the User's Guide enables users to interpret and use the data products.
- ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD): https://lpdaac.usgs.gov/documents/104/MOD13_ATBD.pdf, The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products.
- GENERAL DOCUMENTATION: https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/6/MOD13A1, The File Specification provides a description of the product file including Scientific Data Sets and their attributes.
Collection Information
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Purpose
Science Research -
Version Description
Collection Version 6 Processing and Reprocessing -
DOI
10.5067/MODIS/MOD13A1.006
https://doi.org
- Search for granules from this collection
Data Identification
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Processing Level
3
Sensor Measurements
- Quality
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Collection Progress
Active
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Access Constraints
None
Data Dates
| Creation | |
| Last Revision |
Related URLs
Other Descriptive Keywords
Additional Attributes
- Name: HORIZONTALTILENUMBER INT Description: Horizontal tile number of a grid, which increases from left to right.
- Name: QAPERCENTGOODQUALITY INT Description: Percent of pixels with good quality
- Name: QAPERCENTNOTPRODUCEDCLOUD INT Description: Percent of pixels under cloud
- Name: QAPERCENTNOTPRODUCEDOTHER INT Description: Percent of pixels not produced due to some reason other than cloud
- Name: QAPERCENTOTHERQUALITY INT Description: Percent of pixels with not so good quality
- Name: VERTICALTILENUMBER INT Description: Vertical tile number of a grid, which increases from top to bottom.
- Name: PROCESSVERSION STRING Description: Version of the process software that generated the product.
- Name: TileID INT Description: MODIS Land tile identification number which represents a geographical area on the surface of the Earth bounded by latitude and longitude coordinates.
- Name: INPUTPRODUCTRESOLUTION STRING Description: Resolution of input products
- Name: NDVI500M16DAYQCLASSPERCENTAGE INT Description: Percentage of pixels with best quality in the 16-day 500m NDVI
- Name: EVI500M16DAYQCLASSPERCENTAGE INT Description: Percentage of pixels with best quality in the 16-day 500m EVI
- Name: identifier_product_doi STRING Description: Digital object identifier that uniquely identifies this data product
- Name: identifier_product_doi_authority STRING Description: URL of the digital object identifier resolving authority
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
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| Terra |
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No dates provided. |
Temporal Information
Spatial Information
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | MODIS Sinusoidal Tiling System | CARTESIAN | GEODETIC |
Resolution and Coordinate System
Tiling Identification Systems
| System Name | Coordinate 1 Min | Coordinate 1 Max | Coordinate 2 Min | Coordinate 2 Max |
|---|---|---|---|---|
| MODIS Tile SIN | 0.0 | 35.0 | 0.0 | 17.0 |
Location Keywords
- GEOGRAPHIC REGION
- GLOBAL
Data Centers
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LP DAAC
ARCHIVERLand Processes Distributed Active Archive Center
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U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
Sioux Falls, South Dakota 57198
M-F, 8 a.m. to 4 p.m. Central Time
605-594-6116
866-573-3222
Contact DetailsLP DAAC User Services is the point of contact for answering questions concerning data products, data access, and online applications.
The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products.
https://lpdaac.usgs.gov/
- Home Page
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NASA/GSFC/SED/ESD/TISL/MODAPS
PROCESSORMODIS Adaptive Processing System, Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
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NASA/GSFC Code 922
GREENBELT, Maryland 20771
301-614-5515
Contact DetailsContact for data content concerns
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Data Contacts
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LP DAAC User Services
User ServicesLP DAAC User Services
LP DAAC-
U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
Sioux Falls, South Dakota 57198
M-F, 8 a.m. to 4 p.m. Central Time
605-594-6116
866-573-3222
Contact DetailsLP DAAC User Services is the point of contact for answering questions concerning data products, data access, and online applications.
The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products.
https://lpdaac.usgs.gov/
- Home Page
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Archive And Distribution Information
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Format: HDF-EOS
Format Type: Native
Average File Size: 28.49 MB
Total Collection File Size Begin Date: 2000-02-18T00:00:00.000Z
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Format: HDF-EOS
Format Type: Native
Media: https
Average File Size: 28.49 MB
Total Collection File Size Begin Date: 2000-02-18T00:00:00.000Z