Documentation

Writing Fault Resistant Code

Please read our writing fault-resistent code page before creating a program accessing data with any of the web services shown on this site.

WaterML
- WaterOneFlow (WaterML 1.1) - an XML schema created by CUAHSI and adopted by the OpenGeospatial Consortium allowing for the broad sharing of time-series hydrologic information
- WaterML2 - a newer XML schema by the OpenGeospatial Consortium for sharing time-series data
RDB - a tab-delimited format frequently used by the U.S. Geological data to serve data
JSON - Javascript Object Notation. Some USGS Water Web Services will support the JSON format.
KML - used for lightweight mapping applications like Google Maps and Google Earth
MapperML - used by some services, this produces a lightweight output of high level site information designed for use by the NWIS Mapper. However, it is available to all.