Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

VIIRS/NPP DNB BRDF/Albedo Model Parameters Daily L3 Global 1km SIN Grid V001

Metadata Updated: June 4, 2024

The NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) Day/Night Band (DNB) Bidirectional Reflectance Distribution Function (BRDF) and Albedo Model Parameters (VNP43DNBA1) Version 1 product provides BRDF/Albedo model parameters at 1 kilometer (km) resolution. The VNP43DNBA1 product is produced daily using 16 days of VIIRS data and is weighted temporally to the ninth day, which is reflected in the file name. The VNP43 data products are designed to promote the continuity of NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS) BRDF/Albedo data product suite.

The VNP43 algorithm uses the RossThick/Li-Sparse-Reciprocal (RTLSR) semi-empirical kernel-driven BRDF model, with the three kernel weights from VNP43DNBA1 to reconstruct surface anisotropic effects, correcting the directional reflectance to a common view geometry (VNP43DNBA4), while also computing integrated black-sky albedo (BSA) at local solar noon and white-sky albedo (WSA) (VNP43DNBA3). 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).

The VNP43DNBA1 data product provides two SDS layers for mandatory quality and model parameters representing fiso, fvol, and fgeo for the VIIRS DNB. A low-resolution browse is also available showing BRDF/Albedo parameters for the DNB as a red, green, blue (RGB) image in JPEG format.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date November 12, 2020
Metadata Updated Date June 4, 2024

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Browse image for Earthdata Search

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date June 4, 2024
Publisher LP DAAC
Maintainer
Identifier C1632560913-LPDAAC_ECS
Data First Published 2019-11-07
Language en-US
Data Last Modified 2019-11-07
Category NPP-JPSS, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Crystal Schaaf, Zhuosen Wang, Xiaoyang Zhang, Alan Strahler . 2019-11-07. VNP43DNBA1. Version 001. VIIRS/NPP DNB BRDF/Albedo Model Parameters Daily L3 Global 1km SIN Grid V001 . Sioux Falls, South Dakota, USA. Archived by National Aeronautics and Space Administration, U.S. Government, NASA EOSDIS Land Processes Distributed Active Archive Center. https://doi.org/10.5067/VIIRS/VNP43DNBA1.001. https://doi.org/10.5067/VIIRS/VNP43DNBA1.001. Digital Science Data. This data set was provided by the NASA/NOAA NPP Project. The DOI landing page provides citations in APA and Chicago styles. .
Creator Crystal Schaaf, Zhuosen Wang, Xiaoyang Zhang, Alan Strahler
Data Presentation Form Digital Science Data
Graphic Preview Description Browse image for Earthdata Search
Graphic Preview File https://e4ftl01.cr.usgs.gov/WORKING/BRWS/Browse.001/2021.06.17/BROWSE.VNP43DNBA1.A2021160.h10v08.001.2021168080725.1.jpg
Harvest Object Id 892d2f79-c0c1-487d-8a15-2a46f927a85e
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/VIIRS/VNP43DNBA1.001
Metadata Type geospatial
Old Spatial -180.0 -90.0 180.0 90.0
Program Code 026:001
Release Place Sioux Falls, South Dakota, USA
Series Name VNP43DNBA1
Source Datajson Identifier True
Source Hash 088b51cda1431e36ad4665b70a1ae75a2dfd8e83f0e6562fc390607361b68041
Source Schema Version 1.1
Spatial
Temporal 2012-01-19T00:00:00Z/2024-06-03T00:00:00Z

Didn't find what you're looking for? Suggest a dataset here.