VNP43D63 v001

VIIRS/NPP BRDF/Albedo BSA at Solar Noon Band VIS Daily L3 Global 30 ArcSec CMG

PI: Crystal Schaaf


The Suomi National Polar-Orbiting Partnership (S-NPP) NASA Visible Infrared Imaging Radiometer Suite (VIIRS) Bidirectional Reflectance Distribution Function (BRDF) and Albedo Black-Sky Albedo for Band VIS (VNP43D63) is produced daily using 16 days of data at 30 arc second (1,000 meter) resolution. Data are temporally weighted to the ninth day, which is reflected in the file name. The VNP43D product suite is provided in a Climate Modeling Grid (CMG), which covers the entire globe for use in climate simulation models. Due to the large file size, each VNP43D product contains just one data layer.

VNP43D54 through VNP43D79 are the albedo products of the VNP43D BRDF/Albedo product suite. Black-sky albedo (BSA) and white-sky albedo (WSA) values are provided for the nine VIIRS moderate resolution bands (M1 through M5, M7, M8, M10, and M11) along with the visible (VIS), near-infrared (NIR), and shortwave bands included in the VNP43MA3 product. In addition to the bands included in VNP43MA3, this product suite includes albedo values for the VIIRS Day/Night Band (DNB). The black-sky albedo (directional hemispherical reflectance) is defined as albedo in the absence of a diffuse component and is a function of solar zenith angle. White-sky albedo (bihemispherical reflectance) is defined as albedo in the absence of a direct component when the diffuse component is isotropic. Details regarding methodology are available on the VNP43MA3 product page and in the Algorithm Theoretical Basis Document (ATBD).

VNP43D63 is the BSA for the VIIRS visible broadband (0.64 μm).

read more


Product Maturity

Validation at Stage 1 has been achieved for the VIIRS BRDF/Albedo product suite. Visit the VIIRS Land Product Quality Assessment website for additional information on validation and product maturity status.

Collection and Granule


Characteristic Description
CollectionS-NPP VIIRS
File Size~215 MB
Temporal ResolutionDaily
Temporal Extent2012-01-19 to Present
Spatial ExtentGlobal
Coordinate SystemGeographic Latitude and Longitude
File FormatHDF-EOS5
Geographic DimensionsGlobal


Characteristic Description
Number of Science Dataset (SDS) Layers1
Columns/Rows43200 x 21600
Pixel Size1000 m


SDS Name Description Units Data Type Fill Value No Data Value Valid Range Scale Factor
BRDF_Albedo_BSA_vis Black-sky albedo for VIS band N/A 16-bit signed integer 32767 N/A 0 to 32766 0.001

Product Quality

Quality information for the VIIRS BRDF/Albedo product suite is provided in VNP43D40 and VNP43D53 as described in Table 8 of the ATBD. Product accuracy/uncertainty information can be found in section 4.

Known Issues

The VIIRS Land Surface Reflectance product (VNP09) flags a larger number of retrievals as ‘High Aerosol’ in the quality layer as compared to the MODIS reflectance product. The inaccurately flagged high aerosol quality flags cause the BRDF retrieval algorithm to incorrectly reject the observations and switch from full inversion (high quality retrieval) to magnitude inversion (low quality retrieval) in the mid to high latitude, arid lands, and tropical vegetative regions.


Using the Data

Access Data


DOI: 10.5067/VIIRS/VNP43D63.001

About the Image

VIIRS BRDF/Albedo Black-Sky Albedo VIS Band data from the VNP43D63 product across the globe on January 1, 2017.

View full-size image