Area: ~10 degrees x 10 degrees lat/long
File Size: ~0.4 MB
Projection: Sinusoidal
Data Format: HDF-EOS

Dimensions: 1200 x 1200 rows/columns
Resolution: 1 kilometer 

Science Data Sets (SDS HDF Layers): 4

Top Left: This image is a false-color representation of the second of four Science Data Sets in the BRDF/Albedo Quality product.  “Snow_BRDF_Albedo” is shown for data acquired between January 17 and February 1, 2007 over the Adriatic Sea, including Italy, Croatia, Bosnia, Serbia, and Albania (h19v04).

“Snow_BRDF_Albedo” describes which pixels contain snow-free albedo values (green), versus those calculated in the presence of snow (yellow).  Black pixels are either cloud or water bodies.  Using this quality information, it is apparent that the white pixels in the Nadir BRDF-Adjusted Reflectance product (top right) are snow and not clouds.  

V005 Change Points of Interest:  

•  1-km and 500-m products now available: the 1-km are averages of the 500-m values (if any of the input 500-m pixels were snow-covered the 1-km is flagged as snowy)
•  Quality information stored as a separate product (MCD43B2) in simplified form 
•  Local Solar Noon changed from 5-degree steps to degrees
•  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) BRDF/Albedo Quality product (MCD43B2) describes the overall condition of the other BRDF and Albedo products. MCD43B2 data are 16-day composites at 1-kilometer spatial resolution provided as a level-3 gridded product in the Sinusoidal projection and include albedo quality, snow conditions, ancillary information, and inversion information.

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.

Data Center:

LPDAAC

Sensor:

MODIS

Dataset:

MODIS/Terra+Aqua BRDF/Albedo Quality 16-Day L3 Global 1km 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