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clean, simple and fast access to public hydrology and climatology data

Project description

clean, simple and fast access to public hydrology and climatology data


  • retrieves and parses datasets from the web
  • returns simple python data structures that can be easily pulled into more sophisticated tools for analysis
  • caches datasets locally and harvests updates as needed


Currently, ulmo supports the following datasets / services:

  • United States Geological Survey National Water Information System
  • National Climatic Data Center Global Summary of the Day
  • National Climatic Data Center Global Historical Climatology Network
  • CUAHSI WaterOneFlow


Support for the following datasets is currently under development and they should be available soon:

  • National Weather Service 24-hour Precip (4 km grid)
  • Climate Prediction Center Weekly Drought Monitor

A list of future datasets is kept in on the issue tracker. If there’s a dataset you’d like to see added, please open an issue about it.

Project details

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