MODIS/Terra+Aqua Nadir BRDF-Adjusted Reflectance 16-Day L3 Global 500m SIN Grid V005

EDG Data Set Name	ShortName
MODIS/Terra+Aqua Nadir BRDF-Adjusted Reflectance 16-Day L3 Global 500m SIN Grid V005	MCD43A4

Unlike MODIS V004 MOD43, the V005 BRDF, Albedo, and NBAR products are known as MCD43. Whenever possible, both Terra and Aqua data are used in the generation of the new V005 products, providing the highest probability for quality input data and designating them as "MCD," meaning "Combined," products.

Version	Acquisition Range	Science Quality Status
005	February 24, 2000 -	Validated Stage 1 from 02/24/2000

V005 MCD43A4 Changes (abbreviated Points of Interest below)

V005 MCD43A4 Science Data Sets (specifications for data layers)

V005 MCD43A4 Quality Information

MODIS Image

Data Set Characteristics:

Area: ~10 degrees x 10 degrees lat/long
File Size: ~16 MB
Projection: Sinusoidal
Data Format: HDF-EOS
Dimensions: 2400 x 2400 rows/columns
Resolution: 500 meters
Science Data Sets (SDS HDF Layers): 7

Top Left: A combination of Bands 1, 4, 3 displays an R, G, B Nadir BRDF-Adjusted Reflectance image using data acquired between February 26 and March 13, 2001 over Central America including the Yucatan Peninsula, El Salvador, Honduras, Nicaragua, and some of Costa Rica (h09v07).

Top Right: A zoomed view of the 500-m data extending from the Gulf of Fonseca northeastward into Honduras.

V005 Change Points of Interest:

500-m product now available

3D Science Data Sets simplified to 2D structure

Quality information stored as a separate product (MCD43A2)

Solar Zenith Angle changed from mean to angle at local solar noon

Reduced file volume: internal compression

Phased production strategy: Produced every 8 days with 16-days of acquisition (ie., production period 2001001 includes acquisition between Days 001 and 016, production period 2001009 includes acquisition between Days 009 and 024)

Product Description

The MODerate-resolution Imaging Spectroradiometer (MODIS) Reflectance product MCD43A4 provides 500-meter reflectance data adjusted using a bidirectional reflectance distribution function (BRDF) to model the values as if they were taken from nadir view. These MCD43A4 data are 16-day composites provided as a level-3 gridded product in the Sinusoidal projection.

Both Terra and Aqua data are used in the generation of this product, providing the highest probability for quality input data and designating it as an “MCD,” meaning “Combined,” product.

Version-5 MODIS/Terra+Aqua BRDF/Albedo products are Validated Stage 1, meaning that accuracy has been estimated using a small number of independent measurements obtained from selected locations and time periods and ground-truth/field program efforts. Although there may be later improved versions, these data are ready for use in scientific publications.

View a Version Formatted for Printing

Retrieve the MCD43A4.5 MODIS product through the LP DAAC Data Pool
Via Search Tool: http://e4eil01u.ecs.nasa.gov:22000/WebAccess/drill?attrib=esdt&esdt=MCD43A4.5&group=MOTA
Via FTP Directory: ftp://e4ftl01u.ecs.nasa.gov/MOTA/MCD43A4.005/

Order Data through the EOS Data Gateway
(http://edcimswww.cr.usgs.gov/pub/imswelcome/)

EOS Data Gateway Search Tips

Data Center:	LPDAAC
Sensor:	MODIS
Dataset:	MODIS/Terra+Aqua Nadir BRDF-Adjusted Reflectance 16-Day L3 Global 500m SIN Grid V005
Spatial:	HORIZONTALTILENUMBER Max/Min VERTICALTILENUMBER Max/Min
Geographic Extent:	Type Lat/Long Range or Draw on Map
Temporal Extent:	2000-02-24 to present

Product Information

Product Description
(http://modis-land.gsfc.nasa.gov/brdf.htm)

User Guide
http://www-modis.bu.edu/brdf/userguide/index.html

Algorithm Theoretical Basis Document (ATBD)
(http://modis.gsfc.nasa.gov/data/atbd/atbd_mod09.pdf)

MODIS Standard Data Products Catalog
(http://modis.gsfc.nasa.gov/data/dataprod/index.php)

EOS Data Products Handbook Volume 1 (2000)
(http://eospso.gsfc.nasa.gov/eos_homepage/for_scientists/data_products/vol1.php)

Contact Information

LP DAAC User Services
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URL: http://LPDAAC.usgs.gov/modis/mcd43a4v5.asp
Technical Contact: LPDAAC@eos.nasa.gov
Last Update: Wednesday, September 26, 2007
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