MODIS/Aqua Vegetation Indices Monthly L3 Global 0.05Deg CMG
Entry ID: MYD13C2

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Summary
Abstract: Global MODIS vegetation indices are designed to provide consistent spatial and temporal comparisons of vegetation conditions. Blue, red, and near-infrared reflectances, centered at 470-nanometers, 648-nanometers, and 848-nanometers, respectively, are used to determine the MODIS daily vegetation indices.

The MODIS Normalized Difference Vegetation Index (NDVI) complements NOAA's Advanced Very High Resolution Radiometer (AVHRR) NDVI products and provides continuity for historical applications. The MODIS NDVI product contains atmospherically corrected bi-directional surface reflectances masked for water, clouds, and cloud shadows. Another MODIS index, the Enhanced Vegetation Index or EVI, uses the blue band to remove residual atmospheric contamination caused by smoke and sub-pixel thin cirrus clouds. The EVI also uses feedback adjustment to minimize canopy background variations and to enhance vegetation sensitivity from sparse to dense vegetation conditions.

Global MYD13C2 data are cloud-free spatial composites of the gridded 16-day 1-kilometer MYD13A2, and are provided monthly as a level-3 product projected on a 0.05 degree (5600-meter) geographic Climate Modeling Grid (CMG). Cloud-free global coverage is achieved by replacing clouds with the historical MODIS time series climatology record.

Vegetation indices are used for globally monitoring vegetation conditions and are used in products displaying land cover and land cover changes. These data may be used as input for modeling global biogeochemical and hydrologic processes and global and regional climate. These data also may be used for characterizing land surface biophysical properties, including land cover.

V005 Data Set Characteristics:
Area: Global
Image Dimensions: 3600 x 7200 rows/columns
File Size: ~100 MB
Resolution: 5600 meters
Projection: Sinusoidal
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 13

V004 Data Set Characteristics (decommissioned):
Area: Global
Image Dimensions: 3600 x 7200 rows/columns
File Size: ~100 MB
Resolution: 5600 meters
Projection: Sinusoidal
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 13

Related URL
Link: GET DATA > REVERB
Description: Interface to search, discover, and access EOS data products, and invoke available data services.


Link: GET DATA > ON-LINE ARCHIVE
Description: LP DAAC Data Pool provides direct access to all currently available MODIS products and the ability to download them via HTTP.


Link: GET DATA
Description: USGS EarthExplorer (EE) provides users the ability to query, search and order archived ASTER and MODIS products available from the LP DAAC. Registered users of EE have access to additional features than guest users.


Link: VIEW PROJECT HOME PAGE
Description: The Land Processes Distributed Active Archive Center (LP DAAC) is one of several discipline-specific data centers within the NASA Earth Observing System Data and Information System (EOSDIS). The LP DAAC Web page provides information about available data products, services, documentation, order interfaces, and tools.


Link: VIEW PROJECT HOME PAGE
Description: The MODIS Land home page is maintained through NASA's Goddard Space Flight Center and documents various aspects of the land component of the MODIS mission.


Link: VIEW RELATED INFORMATION
Description: Detailed product descriptions and additional information including links for data access, user guides, and customer support, etc.


Geographic Coverage
 N: 80.0 S: -80.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Originator/Creator: LP DAAC
Dataset Title: MODIS/Aqua Vegetation Indices Monthly L3 Global 0.05Deg CMG V005
Dataset Publisher: LP DAAC
Version: 5.0


Temporal Coverage
Start Date: 2002-07-01


Location Keywords
GEOGRAPHIC REGION
GEOGRAPHIC REGION > GLOBAL


Data Resolution
Latitude Resolution: 0.05 degrees
Longitude Resolution: 0.05 degrees


Science Keywords
BIOSPHERE >VEGETATION >VEGETATION INDEX    [Definition]


ISO Topic Category
ENVIRONMENT
FARMING


Platform
AQUA >Earth Observing System, AQUA    [Information]


Instrument
MODIS >Moderate-Resolution Imaging Spectroradiometer    [Information]


Project
EOS >Earth Observing System    [Information]
EOSDIS >Earth Observing System Data Information System    [Information]
ESIP >Earth Science Information Partners Program    [Information]


Quality
For more information on potential sensor-related anomalies, consult the following URL: http://landweb.nascom.nasa.gov/cgi-bin/QA_WWW/newPage.cgi?fileName=...


Access Constraints
None.


Use Constraints
None.


Keywords
LP DAAC
EOSDIS
USGS/EROS
ESIP
USGS


Data Set Progress
IN WORK


Originating Center
USGS/EROS


Data Center
Land Processes Distributed Active Archive Center    [Information]
Data Center URL: https://lpdaac.usgs.gov/
Dataset ID: MYD13C2

Data Center Personnel
Name: LP DAAC USER SERVICES
Phone: (Toll Free) (866) 573-3222
Phone: (605) 594-6116
Fax: (605) 594-6963
Email: LPDAAC at usgs.gov
Contact Address:
LP DAAC User Services
U.S. Geological Survey (USGS)
Earth Resources Observation and Science (EROS) Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA



Distribution
Distribution_Media: HTTP
Distribution_Size: ~100 MB
Distribution_Format: HDF-EOS


Publications/References
Moderate Resolution Imaging Spectroradiometer (MODIS) publications written by the MODIS Science Team: [available online at http://modis.gsfc.nasa.gov/sci_team/pubs/]

National Aeronautics and Space Administration, 2000, MODIS data products catalog (EOS AM platform): [Greenbelt, Maryland], Goddard Space Flight Center, http://modis.gsfc.nasa.gov/data/dataprod/index.php.

National Aeronautics and Space Administration, 2000, EOS Reference Handbook, a Guide to NASA's Earth Science Enterprise and the Earth Observing System: Greenbelt, Maryland, Goddard Space Flight Center, 256 p. [available online in pdf format at http://eospso.gsfc.nasa.gov/ftp_docs/data_products_vol2.pdf].

Creation and Review Dates
DIF Creation Date: 2009-01-29
Last DIF Revision Date: 2013-01-31

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