- Dataset Availability
- 2023-02-07T00:00:00Z–2026-10-27T00:00:00Z
- Dataset Producer
- NASA LP DAAC at the USGS EROS Center
- Cadence
- 1 Day
- Tags
Description
The NASA/NOAA NOAA-21 (JPSS-2) Visible Infrared Imaging Radiometer Suite (VIIRS) Bidirectional Reflectance Distribution Function (BRDF) and Albedo (BRDF/Albedo) Version 2 product provides albedo estimates at 1000 meter (1 km) resolution. The VJ243MA3 product is produced daily using 16 days of VIIRS data and is weighted temporally to the ninth day. It provides both directional hemispherical reflectance (black-sky albedo) at local solar noon and bihemispherical reflectance (white-sky albedo) for the nine VIIRS moderate resolution bands (M1-M5, M7-M8, M10-M11) and three broadbands (vis, nir, and shortwave). The VJ243 data products are designed to promote the continuity of NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) BRDF/Albedo data product suite.
The VJ243 algorithm uses the RossThick/Li-Sparse-Reciprocal (RTLSR) semi-empirical kernel-driven BRDF model to reconstruct surface anisotropic effects, computing integrated black-sky albedo (BSA) at local solar noon and white-sky albedo (WSA) (VJ243MA3). Researchers can use the BRDF model parameters with a simple polynomial, to obtain black-sky albedo at any solar illumination angle. Likewise, both the BSA and WSA Science Dataset (SDS) layers can be used with a simple polynomial, to manually estimate instantaneous actual albedo (blue-sky albedo). Additional details regarding the methodology are available in the Algorithm Theoretical Basis Document (ATBD).
Documentation:
Bands
Bands
Pixel size: 1000 meters (all bands)
| Name | Pixel Size | Description |
|---|---|---|
BRDF_Albedo_Band_Mandatory_Quality_M1 |
1000 meters | BRDF/Albedo mandatory quality for band M1:
|
BRDF_Albedo_Band_Mandatory_Quality_M2 |
1000 meters | BRDF/Albedo mandatory quality for band M2:
|
BRDF_Albedo_Band_Mandatory_Quality_M3 |
1000 meters | BRDF/Albedo mandatory quality for band M3:
|
BRDF_Albedo_Band_Mandatory_Quality_M4 |
1000 meters | BRDF/Albedo mandatory quality for band M4:
|
BRDF_Albedo_Band_Mandatory_Quality_M5 |
1000 meters | BRDF/Albedo mandatory quality for band M5:
|
BRDF_Albedo_Band_Mandatory_Quality_M7 |
1000 meters | BRDF/Albedo mandatory quality for band M7:
|
BRDF_Albedo_Band_Mandatory_Quality_M8 |
1000 meters | BRDF/Albedo mandatory quality for band M8:
|
BRDF_Albedo_Band_Mandatory_Quality_M10 |
1000 meters | BRDF/Albedo mandatory quality for band M10:
|
BRDF_Albedo_Band_Mandatory_Quality_M11 |
1000 meters | BRDF/Albedo mandatory quality for band M11:
|
BRDF_Albedo_Band_Mandatory_Quality_Vis |
1000 meters | BRDF/Albedo mandatory quality for band Vis:
|
BRDF_Albedo_Band_Mandatory_Quality_NIR |
1000 meters | BRDF/Albedo mandatory quality for band NIR:
|
BRDF_Albedo_Band_Mandatory_Quality_Shortwave |
1000 meters | BRDF/Albedo mandatory quality for band Shortwave:
|
Albedo_BSA_M1 |
1000 meters | Black-sky albedo at local solar noon for band M1 |
Albedo_BSA_M2 |
1000 meters | Black-sky albedo at local solar noon for band M2 |
Albedo_BSA_M3 |
1000 meters | Black-sky albedo at local solar noon for band M3 |
Albedo_BSA_M4 |
1000 meters | Black-sky albedo at local solar noon for band M4 |
Albedo_BSA_M5 |
1000 meters | Black-sky albedo at local solar noon for band M5 |
Albedo_BSA_M7 |
1000 meters | Black-sky albedo at local solar noon for band M7 |
Albedo_BSA_M8 |
1000 meters | Black-sky albedo at local solar noon for band M8 |
Albedo_BSA_M10 |
1000 meters | Black-sky albedo at local solar noon for band M10 |
Albedo_BSA_M11 |
1000 meters | Black-sky albedo at local solar noon for band M11 |
Albedo_BSA_Vis |
1000 meters | Black-sky albedo at local solar noon for band Vis |
Albedo_BSA_NIR |
1000 meters | Black-sky albedo at local solar noon for band NIR |
Albedo_BSA_Shortwave |
1000 meters | Black-sky albedo at local solar noon for band Shortwave |
Albedo_WSA_M1 |
1000 meters | White-sky albedo at local solar noon for band M1 |
Albedo_WSA_M2 |
1000 meters | White-sky albedo at local solar noon for band M2 |
Albedo_WSA_M3 |
1000 meters | White-sky albedo at local solar noon for band M3 |
Albedo_WSA_M4 |
1000 meters | White-sky albedo at local solar noon for band M4 |
Albedo_WSA_M5 |
1000 meters | White-sky albedo at local solar noon for band M5 |
Albedo_WSA_M7 |
1000 meters | White-sky albedo at local solar noon for band M7 |
Albedo_WSA_M8 |
1000 meters | White-sky albedo at local solar noon for band M8 |
Albedo_WSA_M10 |
1000 meters | White-sky albedo at local solar noon for band M10 |
Albedo_WSA_M11 |
1000 meters | White-sky albedo at local solar noon for band M11 |
Albedo_WSA_Vis |
1000 meters | White-sky albedo at local solar noon for band Vis |
Albedo_WSA_NIR |
1000 meters | White-sky albedo at local solar noon for band NIR |
Albedo_WSA_Shortwave |
1000 meters | White-sky albedo at local solar noon for band Shortwave |
Image Properties
Image Properties
| Name | Type | Description |
|---|---|---|
| num_tiles | INT | The number of source tiles that were mosaicked to create this image. |
Terms of Use
Terms of Use
LP DAAC NASA data are freely accessible; however, when an author publishes these data or works based on the data, it is requested that the author cite the datasets within the text of the publication and include a reference to them in the reference list.
Citations
Schaaf, C., Z. Wang, A. Erb, I. Paynter. VIIRS/NOAA-21 BRDF/Albedo Daily L3 Global 1km SIN Grid V002. 2024, distributed by NASA EOSDIS Land Processes Distributed Active Archive Center, 10.5067/VIIRS/VJ243MA3.002.
DOIs
Explore with Earth Engine
Code Editor (JavaScript)
var dataset = ee.ImageCollection('NASA/VIIRS/002/VJ243MA3') .filter(ee.Filter.date('2023-06-01', '2023-06-10')); var visualization = { bands: ['Albedo_BSA_Shortwave'], min: [0.0], max: [0.3], palette: [ '440154', // Deep purple '414487', // Blue '2a788e', // Teal '22a884', // Green '7ad151', // Yellow-green 'fde725', // Bright yellow ], }; Map.setCenter(-98.0, 38.0, 4); Map.addLayer(dataset, visualization, 'Black-Sky Albedo (Shortwave Broadband)');