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Description

The NOAA-20 VIIRS Gap-Filled Lunar BRDF-Adjusted Nighttime Lights Daily L3 Global 500m Linear Lat Lon Grid product, short-name VJ146A2 is a daily moonlight- and atmosphere-corrected Nighttime Lights (NTL) product. This product is available at 15 arc-second resolution and contains seven Science Data Sets (SDS) that include DNB BRDF-Corrected NTL, Gap-Filled DNB BRDF-Corrected NTL, DNB Lunar Irradiance, Latest High-Quality Retrieval, Mandatory Quality Flag, Cloud Mask Quality Flag, and Snow Flag. The VJ146A2 product files are provided in standard Hierarchical Data Format–Earth Observing System (HDF-EOS5) format.

The current v2.0 collection contains several changes and differences relative to the previous v1.0 collection. These include radiance data format change from unsigned integer to floating-point, from exclusively for land surfaces coverage to both land and water surfaces, updated Mandatory_Quality_Flag layer, and others. Consult the v2.0-specific Black Marble User Guide for additional details at:
https://landweb.modaps.eosdis.nasa.gov/data/userguide/BlackMarbleUserGuide_Collection2.0_20241203.pdf

Version Description

VIIRS Lunar BRDF-Adjusted Nighttime Lights Yearly collection 2 product processing and reprocessing

Product Summary

Platforms
NOAA-20
Instruments
VIIRS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Resolution
0.004167 Decimal Degrees x 0.004167 Decimal Degrees
Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2018-01-01
Data Partner
L1 and Atmosphere Archive and Distribution System,Biospheric Information Systems Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/H
Concept ID
C3816918646-LAADS
Data State
ACTIVE
Number of Files/Granules
0
Processing Level
3
Published

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

NASA VIIRS Land Science Investigator-led Processing System. (2025). VIIRS/JPSS1 Lunar BRDF-Adjusted Nighttime Lights Monthly L3 Global 15 arc second Linear Lat Lon Grid [Data set]. NASA Level 1 and Atmosphere Archive and Distribution System Distributed Active Archive Center. https://doi.org/10.5067/VIIRS/VJ146A3.002 Date Accessed: 2025-12-15

File Naming Convention

VJ146A3.AYYYYDDD.hXXvYY.CCC.YYYYDDDHHMMSS.h5

• VJ146A3 = Short-name
• AYYYYDDD = Acquisition Year and Day of Year
• HHMM = Acquisition Hour and Minute
• hXXvYY = Tile Identifier (horizontal XX vertical YY)
• CCC = Collection Version
• YYYYDDDHHMMSS = Production Date – Year, Day, Hour, Minute, Second
• h5 = Data Format (HDF5)

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