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Water Software > Groundwater Software > HydroClimATe

HydroClimATe: Hydrologic and Climatic Analysis Toolkit

Overview of HydroClimATe

The Hydrologic and Climatic Analysis Toolkit (HydroClimATe) is a computer program for assessing the relations among variable climatic and hydrologic time-series data.

HydroClimATe automates the use of several objective methods for assessing relations among one or more sets of data that vary in time and space with climate variability and variability in hydrologic time-series data. Although the software was written for the purpose of identifying relations between hydrologic and climatic time series, the available tools and methods can be applied to many other types of time series generated by physical, biological, economic, or social processes. The methods include

  • standardization,
  • detrending,
  • regression and correlation,
  • Fourier analysis,
  • maximum entropy method (MEM),
  • singular spectrum analysis (SSA),
  • empirical orthogonal function (EOF) analysis, and
  • autoregressive time series modeling.

The software combines these methods in order to provide a set of analysis tools that can be readily implemented for processing hydrologic time-series data.

HydroClimATe Information and Downloads

[Image: Cover of software documentation report. ]

Software Downloads

HydroClimATe version 1.0.0 (3/7/2014) is the initial release.

Documentation of HydroClimATe

  • Dickinson, J.E., Hanson, R.T., and Predmore, S.K., 2014, HydroClimATe -- Hydrologic and climatic analysis toolkit: U.S. Geological Survey Techniques and Methods 4-A9, 49 p.
    This report describes how to use the software and four example problems at the time of the initial HydroClimATe v1.0.0 release.

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Training (USGS Only)

Internal USGS users can view a video of the Office of Groundwater seminaron HydroClimATe:

Point of Contact

Support is provided for correcting bugs and clarification of how HydroClimATe is intended to work. Only limited assistance can be provided for applying HydroClimATe to specific problems by contacting the points of contact listed below:

U.S. Geological Survey
California Water Science Center
6000 J Street, Placer Hall
Sacramento, California 95819

Notification of Releases

If you would like to be notified by email when each new version of the HydroClimATe is released, please send your request by email to Jesse Dickinson.

Other USGS Groundwater Software

The USGS develops groundwater, water-quality, surface-water, and other water-resources software for use by the USGS in fulfilling its mission. Most of this software is available online for download at no charge.

Disclaimers and Notices

This software has been approved for release by the U.S. Geological Survey (USGS). Although the software has been subjected to rigorous review, the USGS reserves the right to update the software as needed pursuant to further analysis and review. No warranty, expressed or implied, is made by the USGS or the U.S. Government as to the functionality of the software and related material nor shall the fact of release constitute any such warranty. Furthermore, the software is released on condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use. Also refer to the USGS Water Resources Software User Rights Notice for complete use, copyright, and distribution information.

Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

See also, USGS policy on linking to non-Federal web sites.

Software License and Purchase Information

This software is a product of the U.S. Geological Survey, which is part of the U.S. Government.


This software is freely distributed. There is no fee to download and (or) use this software.


Users do not need a license or permission from the USGS to use this software. Users can download and install as many copies of the software as they need.

Public Domain:

As a work of the United States Government, this USGS product is in the public domain within the United States. You can copy, modify, distribute, and perform the work, even for commercial purposes, all without asking permission. Additionally, USGS waives copyright and related rights in the work worldwide through CC0 1.0 Universal Public Domain Dedication ( [Link exits USGS]).

Note: Some or all of this information is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of the free Adobe Reader from the Adobe web site. [Link exits USGS] Visit [Link exits USGS] for free tools that allow visually impaired users to read PDF files.

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Page Last Modified: Wednesday, 28-Dec-2016 01:36:43 EST