VIIRS/NPP Vegetation Indices 16-Day L3 Global 1km SIN Grid V001
The Suomi National Polar-Orbiting Partnership (Suomi NPP) NASA Visible Infrared Imaging Radiometer Suite (VIIRS) Vegetation Indices (VNP13A2) Version 1 data product provides vegetation indices by a process of selecting the best available pixel over a 16-day acquisition period at 1 kilometer (km) resolution. The VNP13 data products are designed after the Moderate Resolution Imaging Spectroradiometer (MODIS) Terra and Aqua Vegetation Indices product suite to promote the continuity of the Earth Observation System (EOS) mission. The VNP13 algorithm process produces three vegetation indices: The Normalized Difference Vegetation Index (NDVI), the Enhanced Vegetation Index (EVI), and the Enhanced Vegetation Index-2 (EVI2). NDVI is one of the longest continual remotely sensed time series observations, using both the red and near-infrared (NIR) bands. EVI is a slightly different vegetation index that is more sensitive to canopy cover, while NDVI is more sensitive to chlorophyll. EVI2 is a reformation of the standard 3-band EVI, using the red band and NIR band. This reformation addresses arising issues when comparing VIIRS EVI to other EVI models that do not include a blue band. EVI2 will eventually become the standard EVI. Along with the three Vegetation Indices layers, this product also includes layers for NIR reflectance; three shortwave infrared (SWIR) reflectance; red, blue, and green reflectance; composite day of year; pixel reliability; relative azimuth, view, and sun angles, and a quality layer. Two low resolution browse images are also available for each VNP13A2 product: EVI and NDVI.
| Science Keywords: |
|
||
| Spatial Extent: | Bounding Rectangle: N: 90.0 S: -90.0 E: 180.0 W: -180.0 |
Data Format(s): | Archive: HDF-EOS5Distribution: HDF-EOS5 |
| Temporal Extent: | Platform(s): | Suomi-NPP | |
| Data Center(s): | LP DAAC | Instrument(s): | VIIRS |
| Version: | 001 | ||
- Title: VIIRS/NPP Vegetation Indices 16-Day L3 Global 1km SIN Grid V001
- Version: 001
- Creator: Kamel Didan, Armando Barreto
- Publisher: NASA EOSDIS Land Processes DAAC
- Release Date: 2018-07-19T00:00:00.000Z
- Other Citation Details: This data set was provided by the NASA/NOAA NPP Project. The DOI landing page provides citations in APA and Chicago styles.
- Linkage: https://doi.org/10.5067/VIIRS/VNP13A2.001
10.5067/VIIRS/VNP13A2.001
https://doi.org
- USER'S GUIDE: https://lpdaac.usgs.gov/documents/184/VNP13_User_Guide_ATBD_V2.1.2.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/184/VNP13_User_Guide_ATBD_V2.1.2.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/VIIRS/1/VNP13A2, The File Specification provides a description of the product file including Scientific Data Sets and their attributes.
- SCIENCE DATA PRODUCT VALIDATION: https://viirsland.gsfc.nasa.gov/Val/VI_Val.html, Validation at stage 1 has been achieved for the VIIRS Vegetation Index (VI) product suite.
- SCIENCE DATA PRODUCT VALIDATION: VI, Further details regarding VIIRS product validation and maturity status are available from VIIRS Land Product Quality Assessment site.
Collection Information
-
Purpose
Science Research -
Version Description
Collection Version 1 Processing and Reprocessing - Search for granules from this collection
Data Identification
-
Processing Level
3
Sensor Measurements
- Quality
-
Collection Progress
Active
-
Access Constraints
None
Data Dates
| Creation | |
| Last Revision |
Related URLs
Other Descriptive Keywords
Additional Attributes
- 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
- Name: TileID INT Description: VIIRS Land tile identification number which represents a geographical area on the surface of the Earth bounded by latitude and longitude coordinates.
- Name: HORIZONTALTILENUMBER INT Description: VIIRS Horizontal tile number of a grid, which increases from left to right.
- Name: VERTICALTILENUMBER INT Description: VIIRS Vertical tile number of a grid, which increases from top to bottom.
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| NPP-JPSS |
|
No dates provided. |
Temporal Information
Spatial Information
Gridded Resolutions
Gridded Resolution 1
X Dimension1000.0 Meters
Y Dimension1000.0 Meters
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | GEODETIC |
Resolution and Coordinate System
Horizontal Data Resolution
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
-
LP DAAC
ARCHIVERLand Processes Distributed Active Archive Center
-
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
-
-
NASA/GSFC/SED/ESD/TISL/LandSIPS
PROCESSORLand Science Investigator-led Processing System, Terrestrial Information Systems Laboratory, Earth Sciences Division, Sciences and Exploration Directorate, Goddard Space Flight Center, NASA
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
Data Contacts
-
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
-
Archive And Distribution Information
-
Format: HDF-EOS5
Format Type: Native
Average File Size: 13.5 MB
Total Collection File Size Begin Date: 2012-01-17T00:00:00.000Z
-
Format: HDF-EOS5
Format Type: Native
Media: https
Average File Size: 13.5 MB
Total Collection File Size Begin Date: 2012-01-17T00:00:00.000Z
File Archive Information
File Distribution Information
There is no direct distribution information for this collection.