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VIIRS/NPP BRDF/Albedo Nadir BRDF-Adjusted Reflectance Daily L3 Global 0.05Deg CMG V001

Metadata Updated: June 4, 2024

The NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) Bidirectional Reflectance Distribution Function (BRDF) and Albedo Nadir BRDF-Adjusted Reflectance Daily Global 0.05 Degree Climate Modeling Grid (CMG) Version 1 product (VNP43C4) is derived from the 30 arc second CMG VNP43D Version 1 product suite. VNP43C3 is generated daily from all available high-quality reflectance data over a 16-day moving window emphasizing the ninth day of the retrieval period, which is reflected in the Julian date in the filename. The VNP43 algorithm uses the RossThick/Li-Sparse-Reciprocal (RTLSR) semi-empirical kernel-driven BRDF model, with the three kernel weights from VNP43C1 to compute NBAR values for the VIIRS Day/Night band (DNB), and moderate resolution bands M1 through M5, M7, M8, M10, and M11. The algorithm removes view angle effects from directional reflectances to model the values as if they were collected from a nadir view at local solar noon. The quality and inversion status of the majority of the underlying 30 arc second pixels is provided as well as the percentage of the underlying pixels that were present or were snow covered. Users are encouraged to assess the quality information before using the BRDF/Albedo data. This 0.05 degree (5,600 meters at the equator) CMG product covers the entire globe for use in climate simulation models.

The VNP43C3 product includes 10 layers containing NBAR values for VIIRS DNB and moderate resolution bands M1 through M5, M7, M8, M10, and M11. Along with the NBAR data for the 10 bands are five ancillary layers for uncertainty, quality, local solar noon, percent finer resolution inputs, and snow cover. A low-resolution browse image is also available showing NBAR bands M5, M4, and M3 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 C1629258322-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. VNP43C4. Version 001. VIIRS/NPP BRDF/Albedo Nadir BRDF-Adjusted Reflectance Daily L3 Global 0.05Deg CMG 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/VNP43C4.001. https://doi.org/10.5067/VIIRS/VNP43C4.001. Digital Science Data. 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.001/2019.12.25/BROWSE.VNP43C4.A2019351.001.2019359123934.1.jpg?_ga=2.135743153.1882281295.1577729098-2066674673.1574795892
Harvest Object Id 4fbdf727-c771-4ad8-be4a-49e0e58bf0f9
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/VIIRS/VNP43C4.001
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 VNP43C4
Source Datajson Identifier True
Source Hash dad99a81c6860a4a8c604be2d059adc59fa72794c2d9e62de774bd1d3502ba7c
Source Schema Version 1.1
Spatial
Temporal 2012-01-19T00:00:00Z/2024-06-03T00:00:00Z

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