Global Change Master Directory (GCMD)

Data Sets

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Ancillary Descriptions

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MODIS/Terra Leaf Area Index/FPAR 8-Day L4 Global 1km SIN Grid
Entry ID: MOD15A2

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Summary

Abstract: The level-4 MODIS global Leaf Area Index (LAI) and Fraction of Photosynthetically Active Radiation (FPAR) product is composited every 8 days at 1-kilometer resolution on a Sinusoidal grid. Science Data Sets provided in the MOD15A2 include LAI, FPAR, a quality rating, and standard deviation for each variable.

The LAI variable defines the number of equivalent layers of leaves relative to a unit of ground area, whereas FPAR measures the proportion of available radiation in the photosynthetically active wavelengths that are absorbed by a canopy. Both variables are used as satellite-derived parameters for calculating surface photosynthesis, evapotranspiration, and net primary production, which in turn are used to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation.

V005 Data Set Characteristics:
Area: ~10 x 10 km
Size: 1200 x 1200 rows/columns
File Size: ~0.2 MB compressed
Resolution: 1000 meters
Projection: Sinusoidal
Data Format: HDF-EOS
Bands: 6

V004 Data Set Characteristics (decommissioned):
Area: ~10 degrees x 10 degrees lat/long
Image Dimensions: 1200 x 1200 rows/columns
File Size: 5.8 MB
Resolution: ~1000 meters
Projection: Sinusoidal
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 4

V003 Data Set Characteristics (decommissioned):
Area: ~10 degrees x 10 degrees lat/long
Image Dimensions: 1200 x 1200 rows/columns
File Size: ~5.8 MB
Resolution: ~1000 meters
Projection: Integerized Sinusoidal
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 4

V001 Data Set Characteristics (decommissioned):
Area: ~10 degrees x 10 degrees lat/long
Image Dimensions: 1200 x 1200 rows/columns
File Size: 5.8 MB
Resolution: ~1000 meters
Projection: Integerized Sinusoidal
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 4

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: The MODIS Reprojection Tool on the Web (MRTWeb) is available for selected MODIS land products. MRTWeb’s capabilities include reprojecting to alternate map projections, spatial and spectral subsetting, resampling, and alternate output format options.

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: GET DATA
Description: The USGS Global Visualization Viewer (GloVis) is an online search and order tool driven by browse images. Users may select any geographical area of interest (for any given product) and view all available browse images for that area before deciding to order those products.

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: Land Processes Distributed Active Archive Center (LP DAAC)
Dataset Title: MODIS/Terra Leaf Area Index/FPAR 8-Day L4 Global 1km SIN Grid
Dataset Release Place: Sioux Falls, South Dakota, USA
Dataset Publisher: U.S. Geological Survey
Version: V001, V003 - V005
Online Resource: https://lpdaac.usgs.gov/

Temporal Coverage

Start Date: 2000-02-18

Location Keywords

GEOGRAPHIC REGION > GLOBAL

Data Resolution
Latitude Resolution: 1km
Longitude Resolution: 1km

Science Keywords

LAND SURFACE >SURFACE RADIATIVE PROPERTIES >REFLECTANCE [Definition]

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION

Platform

TERRA >Earth Observing System, TERRA (AM-1) [Information]

Instrument

MODIS >Moderate-Resolution Imaging Spectroradiometer [Information]

Project

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

IMAGERY

DAAC

LP DAAC

EOSDIS

USGS/EROS

ESIP

USGS

LPDAAC

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: MOD15A2

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: ~0.2 MB compressed
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, revised 2004, EOS Reference Handbook, a Guide to NASA's Earth Science Enterprise and the Earth Observing System: Greenbelt, Maryland, Goddard Space Flight Center, 261 p. [available online in pdf format at http://eospso.gsfc.nasa.gov/ftp_docs/data_products_1.pdf].

Creation and Review Dates

DIF Creation Date: 2007-01-31

Last DIF Revision Date: 2013-01-31

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