Confluence Retirement

In an effort to consolidate USGS hosted Wikis, myUSGS’ Confluence service is scheduled for retirement on January 27th, 2023. The official USGS Wiki and collaboration space is now SharePoint. Please migrate existing spaces and content to the SharePoint platform and remove it from Confluence at your earliest convenience. If you need any additional information or have any concerns about this change, please contact Thank you for your prompt attention to this matter.

Versions Compared


  • This line was added.
  • This line was removed.
  • Formatting was changed.


  • Python module supported on Windows, Linux (Ubuntu), OS X

Methodology (process)

  • User requirements
  • Design
  • Coding (contractor assistance)Proposed Functionality
    Return list of preloaded GDP gridded data sets
    Allow user-defined OPeNDAP URL as input
    Validate OPeNDAP URL as valid gridded data
    Return ranges of lon,lat,time and height (describe grid)
    Return available statistical techniques
    Return available preloaded shapefiles
    Interface to ArcGIS with validated inputs

Allow specification of lon/lat range, time range and depth/height range
Allow specification of statistical techniques
Allow specification of shapefile or polygon as array (numpy)

Returns calculated time and summary statistical data as arrays (numpy)

  • Design
    Co-developed with end users and contractor via agile development approach (1 week iteration for 4 weeks)
  • Coding
    A contractor with experience with Python will write the python module. Curtis will do the ArcGIS interface work.
  • Distribution/publishing
    • Include in USGS ArcGIS distribution, available on all USGS ArcGIS Desktops
    • Open Source
    • Ubuntu Distribution (Personal Package archiveArchive)


NOAA Southwest Fisheries Science Center - Environmental Research Division (SWFSC-ERD)
Geo Data Portal project (CIDA)
Interagency Coastal Marine Spatial Planning (CMSP) Group