Calculate the monthly Coastal Salinity Index (CSI) for monthly, daily, or interval salinity or specific conductance data for suites of gages.

Installation instructions

To install the CSI package, you must be using R 3.0 or greater and run the following command:


Reporting bugs

Please consider reporting bugs and sending questions to [email protected].

Coverage Status Build Status


This software is in the public domain because it contains materials that originally came from the U.S. Geological Survey, an agency of the United States Department of Interior. For more information, see the official USGS copyright policy

Although this software program has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS or the U.S. Government as to the accuracy and functioning of the program and related program material nor shall the fact of distribution constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith.

This software is provided "AS IS."


USGS-EDEN/CSI documentation built on Oct. 11, 2019, 11:57 p.m.