Geo2Grid Image Creation Software Version 1.1 Release

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kathys
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Joined: Tue Jun 22, 2010 4:51 pm

Geo2Grid Image Creation Software Version 1.1 Release

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The CSPP Geo team is pleased to announce the release of the Geo2Grid Version 1.1.0 software package. The Geo2Grid software provides the capability to create high quality single band, combined Red/Green/Blue (RGB), and satellite product image files in an easy and efficient manner from geostationary imager data files in mission-standard format. Images can optionally be reprojected to a pre-defined or user-defined grid.

Development of this software was funded by the GOES-R Program and NOAA STAR

Output images are written in GeoTIFF format, which can be displayed in typical image viewers but contains extra georeferencing information that can be used in geo-spatially aware applications.

Creation of the images is carried out by simple bash shell script commands, which wrap underlying Python code. By default, images of all Imager Bands plus true and false color output image files will be generated. However, users can choose to create one or more images using optional arguments.
  • What is new in CSPP Geo2Grid Version 1.1?
    • Added Support for the Following Imagers and Products:
      * GOES-18 Advanced Baseline Imager (ABI).
      * GOES ABI Cloud Top Temperature and Cloud Height Products.
      * GOES Gridded Geostationary Lightning Mapper (GLM) Products.
      * GEO-KOMPSAT Advanced Meteorological Instrument (AMI).
      * FY-4A, 4B Advanced Geostationary Radiation Imager (AGRI).
    * Support for GeoTIFF overlays.
    * Optimizations and Bug Fixes that Significantly Reduce Image Generation Times.
  • The software now supports the following satellite/instrument/product combinations:

    * GOES-18, GOES-17 and GOES-16 ABI.
    * GOES ABI Cloud Top Temperature and Cloud Height Products.
    * GOES Gridded GLM Products.
    * Himawari-8 and Himawari-9 Advanced Himawari Imager (AHI) (both HSD and HimawariCast formats).
    * GEO-KOMPSAT AMI.
    * FY-4A, FY-4B AGRI.
Other important features of Geo2Grid Software
  • True and natural color imagery creation includes:
    • * Upsample and sharpen composite bands to the highest spatial resolution (500m).
      * Creation of pseudo “green” band for the ABI instruments.
      * Reflectance adjustment (dividing by cosine of the solar zenith angle).
      * Removal of atmospheric Rayleigh scattering (atmospheric correction).
    * All ABI Imager sectors and modes are supported.
    * Command line option supports latitude/longitude subsets.
    * Support for combining daytime RGB/nighttime RGB in one image.
    * Option to reproject image onto a user defined grid.
    * Utility script provided for overlaying borders, coastlines, etc.
    * Utility script provided for creating animations from the output GeoTIFF files.
    * Thorough documentation, examples, and verification data provided.
  • Minimum System Requirements

    * Intel or AMD CPU with 64-bit instruction support (2+ cores - 2.4 GHz).
    * 16 GB RAM (minimum).
    * CentOS 7.9 (or other compatible 64-bit Linux distribution).
    * 10 GB disk space (minimum).
  • System Requirements for Multi-Band Real-time Processing

    * Intel or AMD CPU with 64-bit instruction support (20+ cores - 2.4 GHz).
    * 64 GB RAM (minimum).
    * CentOS 7.9 (or other compatible 64-bit Linux distribution).
    * 1 TB disk space (minimum for ~1 week of images, does not include long-term storage).
The software uses the number of specified CPU threads to create high quality reprojections in the lowest latency possible thanks to the use of the Dask python library. Dask splits data arrays into multiple “chunks” and processes them in parallel.

Geo2Grid software development is led at the University of Wisconsin Space Science and Engineering Center by David Hoese and Kathy Strabala. The software, test dataset and documentation can be obtained from the download page on the CSPP Geo website:
https://cimss.ssec.wisc.edu/csppgeo/geo ... 1.1.0.html
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