Community Satellite Processing Package

  CSPP Suomi-NPP VIIRS Flood Detection Software Version 1.0 Release

14 March 2018

First release of the NOAA S-NPP VIIRS I-Band resolution Flood Detection Software developed by Sanmei Li and Donglian Sun at George Mason University, Fairfax, Virginia. This CSPP release (CSPP_FLOOD_1_0) provides VIIRS Flood Detection Software 1.0, adapted and tested for operation in a real-time direct broadcast environment. The software contains binary executable files and supporting static data files, as well as input and output files for verification of a successful installation.

The CSPP VIIRS Flood Detection software is designed for global automatic flood detection using Suomi-NPP VIIRS Sensor Data Record (SDR) inputs, as well as the VIIRS Cloud Mask Environmental Data Record (EDR) if it is available. The software can be successfully executed under the following conditions:

  • Day time datasets. The software will process all data within a pass where the Solar Zenith Angle is less than 85 degrees.
  • Datasets with maximum latitude less than 85°N/85°S and an average latitude of the aggregated granules less than 75°N/75°S.
  • When using an Area of Interest (AOI) file, the subset boundaries fall within the overpass data coverage.
Output Products

The output product is one HDF4 file per pass that contains a Short Integer array named “WaterDetection” for each reprojected 375 m image element. The “WaterDetection” values correspond to the following categories:
  • 1: No valid data
  • 15: Water surface without water fraction retrieval
  • 16: Bare land
  • 17: Vegetation
  • 20: Snow or ice
  • 27: River ice
  • 30: Cloud
  • 88: Supra-snow/ice water or Mixed ice and water or Melting Ice
  • 150: Cloud Shadow
  • 199: Normal Open Water
  • 200-300: Floodwater Fraction
In addition, a script is included that can create a color enhanced 8 bit GeoTIFF from an output Flood Detection HDF4 file.

System Requirements

System requirements for the CSPP_FLOOD v1.0 software are as follows:
  • Intel or AMD CPU with 64-bit instruction support,
  • 8 GB RAM,
  • CentOS-6 64-bit Linux (or other compatible 64-bit Linux distribution),
  • 15 GB of disk space (plus space for your own DB data and CSPP_FLOOD products).

The software, installation guide and test data are available at the CSPP Download site.


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