MODIS/Terra Nadir BRDF-Adjusted Reflectance 16-Day L3 Global 1km SIN Grid
Entry ID: MOD43B4

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Summary
Abstract: This product has been decommissioned.

Every 16 days, the MODIS BRDF/Albedo Product (MOD43B) algorithm relies on multi-date, atmospherically corrected, cloud-cleared data and a semi-empirical kernel-driven bi-directional reflectance model to determine a global set of parameters describing the Bidirectional Reflectance Distribution Function (BRDF) of the land surface. These one-kilometer gridded parameters are then used to determine directional hemispherical reflectance ("black-sky albedo"),
bi-hemispherical reflectance ("white-sky albedo"), and nadir BRDF-adjusted reflectance (NBAR) for seven narrow spectral bands and (in the case of albedo) three broad bands. Since the parameters of the simple kernel-based BRDF model (Ross-Thick/Li-Sparse Reciprocal) are also provided, along with extensive quality information, the MODIS BRDF/Albedo Product offers members of the global observation and modeling community the additional flexibility to derive reflectance and albedo measures particularly suited to their specific applications.

MOD43B is a MODLAND Level-3 Product and is provided globally as discrete 1200 by 1200 element tiles in a Sinusoidal Grid projection in a HDF-EOS format. MOD43B1 provides the BRDF model parameters, MOD43B2 provides an alternative set of model parameters, MOD43B3 provides the black-sky albedo (at a solar zenith angle of 45 degrees) and the white-sky albedo, and MOD43B4 provides the Nadir BRDF-Adjusted Reflectance (NBAR) value at the mean solar zenith angle of the 16-day period. Quality information is replicated and available with each product.

V004 Data Set Characteristics (decommissioned):
Area: ~10 degrees by 10 degrees lat/long
Image Dimensions:1200x1200 rows/columns
File Size: ~31MB
Resolution: 1 kilometer
Projection: Sinusoidal
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 2

V003 Data Set Characteristics (decommissioned):
Area: ~10 degrees x 10 degrees lat/long
Image Dimensions: 1200 x 1200 rows/columns
File Size: ~31 MB
Resolution: ~1000 meters
Projection: Integerized Sinusoidal
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 2

V001 Data Set Characteristics (decommissioned):
Area: ~10 degrees x 10 degrees lat/long
Image Dimensions: 1200 x 1200 rows/columns
File Size: ~31 MB
Resolution: ~1000 meters
Projection: Integerized Sinusoidal
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 2

Related URL
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.


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 Nadir BRDF-Adjusted Reflectance 16-Day L3 Global 1km SIN Grid
Dataset Release Place: Sioux Falls, South Dakota, USA
Dataset Publisher: U.S. Geological Survey
Version: V001, V003, V004
Online Resource: https://lpdaac.usgs.gov/


Temporal Coverage
Start Date: 2000-07-11


Location Keywords
GEOGRAPHIC REGION > GLOBAL
GEOGRAPHIC REGION > GLOBAL LAND


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


Science Keywords
LAND SURFACE >SURFACE RADIATIVE PROPERTIES >ANISOTROPY    [Definition]
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
Sensor anomalies may be present.


Access Constraints
Only the Golden Month data, August 29, 2002 (day 241) through October 7, 2002 (day 280), is available by special request from LP DAAC User Services (LPDAAC@usgs.gov).


Use Constraints
None.


Keywords
DAAC
LP DAAC
EOSDIS
EROS
ESIP
USGS
LPDAAC


Data Set Progress
COMPLETE


Originating Center
EROS


Data Center
Land Processes Distributed Active Archive Center    [Information]
Data Center URL: https://lpdaac.usgs.gov/
Dataset ID: MOD43B4

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


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: 2003-01-02
Last DIF Revision Date: 2013-01-31

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