VNP03MODLL v001

VIIRS/NPP Moderate Resolution Terrain Corrected Geolocation 6-Min L1 Swath 750 m Light


PI: NASA Suomi-NPP Science Team

Description

The Visible Infrared Imaging Radiometer Suite (VIIRS) Moderate Resolution Terrain Correction Geolocation (VNP03MODLL) Version 1 product from the Suomi National Polar-Orbiting Partnership (S-NPP) VIIRS sensor is produced in 6 minute temporal satellite increments (swaths) at 750 meter resolution. Intersecting the VIIRS line of sight vector with Earth’s geoid and the World Geodetic System (WGS) ellipsoid, this product is based on the SRTM30 Version 2 digital elevation model (DEM), which uses GTOPO30 data for areas from 60° North to 60° South. VNP03MODLL is a terrain correction geolocation product that provides the spatial location for various VIIRS data products. Each swath of data is approximately 3,060 kilometers along track (long) and 3,060 kilometers across track (wide).

Provided in the VNP03MODLL product are layers for height, latitude, and longitude.

These Science Data Sets (SDS) layers are used in conjunction with the VNP14 swath product for accurate geolocation information.

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Characteristics

Collection and Granule

Collection

Characteristic Description
CollectionS-NPP VIIRS
DOI10.5067/VIIRS/VNP03MODLL.001
File Size~1 MB
Temporal Resolution< Daily
Temporal Extent2012-01-19 to Present
Spatial ExtentGlobal
Coordinate SystemNone (Swath)
DatumN/A
File FormatHDF-EOS
Geographic Dimensions3060 km x 3060 km

Granule

Characteristic Description
Number of Science Dataset (SDS) Layers3
Columns/Rows3200 x 3200
Pixel Size750 m

Layers

SDS Name Description Units Data Type Fill Value No Data Value Valid Range Scale Factor
Height Terrain height at pixel locations Meters 32-bit floating point N/A N/A N/A N/A
Latitude Latitudes of pixel locations Degree 32-bit floating point N/A N/A N/A N/A
Longitude Longitude of pixel locations Degree 32-bit floating point N/A N/A N/A N/A

¹VNP03MODLL contains height, latitude and longitude SDS layers to be used in conjunction with the VNP14 swath product for accurate geolocation information. The future VNP03 product will include the full suite of SDS layers including the satellite and solar angles.

Known Issues

No Known Issues.

Documentation

Using the Data

E-Learning

Land Ho! Exploring Earth’s Land Surface with Suomi NPP NASA VIIRS Land Data

Tools

Citation

DOI: 10.5067/VIIRS/VNP03MODLL.001

About the Image

The VNP03MODLL geolocation product over the western US from August 20, 2018.

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