Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock ( Lock A locked padlock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

  • Environmental Topics
  • Laws & Regulations
  • Report a Violation
  • About EPA
Risk Assessment
Contact Us

Basins 4.0 Climate Assessment Tool (Cat): Supporting Documentation and User Manual (External Review Draft)

On this page:

  • Overview
  • History
  • Downloads

Alert
Alert Notice - This site contains archived material(s)

Archive disclaimer
Archived files are provided for reference purposes only. The file was current when produced, but is no longer maintained and may now be outdated. Persons with disabilities having difficulty accessing archived files may contact the Risk Webmaster for assistance. Please use the contact us form if you need additional support.

Abstract

EPA has released of the draft document solely for the purpose of pre-dissemination peer review under applicable Information Quality Guidelines (IQGs). This document has not been formally disseminated by EPA. It does not represent and should not be construed to represent any Agency policy or determination. EPA will consider any public comments submitted in accordance with this notice when revising the document.
The Office of Research and Development, in partnership with EPA’s Office of Water, recently developed a Climate Assessment Tool (CAT) for the Office of Water’s BASINS 4.0 watershed modeling system. BASINS CAT provides a flexible set of capabilities for modifying historical weather data to create climate change scenarios for assessing the influence of climate variability and change on water quantity and quality using the Hydrologic Simulation Program – FORTRAN (HSPF) watershed model. This report provides technical information including a discussion of tool capabilities and a set of hands-on tutorials intended to support BASINS users interested in applying the CAT tool.

Impact/Purpose

BASINS CAT provides a flexible set of capabilities for modifying historical weather data to create climate change scenarios for assessing the influence of climate variability and change on water quantity and quality using the Hydrologic Simulation Program – FORTRAN (HSPF) watershed model.

Status

Following the public comment period, the report will undergo an external peer review. The report will then be revised to address comments and posted on the NCEA Global web page. EPA will consider any public comments submitted in accordance with this notice when revising the document.

Citation

U.S. EPA. Basins 4.0 Climate Assessment Tool (Cat): Supporting Documentation and User Manual (External Review Draft). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-08/088A.

History/Chronology

Date Description
01- 2006 In 2006 the EPA Global Change Research Program (GCRP) supported the development of a Climate Assessment Tool (CAT) for the EPA Office of Water's Version 4 release of the BASINS water quality modeling system.
02- Sep 2008 EPA releases the draft user manual and report for public review and comment.
03- Oct 2008 EPA announced a 30-day public comment period in an October 2, 2008 Federal Register Notice.

Additional Information

Comments on the draft manual may be submitted using the e-Government Regulations.gov Web site. From the site, select Environmental Protection Agency and the keyword EPA-HQ-ORD-2008-0700 (for the docket ID) to comment on this report.

For information on the public comment period, contact the Office of Environmental Information Docket; telephone: 202-566-1752; facsimile: 202-566-1753; or e-mail: ORD.Docket@epa.gov.

Download(s)

  • BASINS 4.0 Climate Assessment Tool (CAT): Supporting Documentation and Users Manual (External Review Draft) (PDF)  (187  pp, 1.8 MB, about PDF)

Related Link(s)

  • Office of Water’s BASINS 4.0 Watershed Modeling Website

Federal Register Notices

  • FR Notice: Oct 2,2008
  • Risk Assessment Home
  • About Risk Assessment
  • Risk Recent Additions
  • Human Health Risk Assessment
  • Ecological Risk Assessment
  • Risk Advanced Search
    • Risk Publications
  • Risk Assessment Guidance
  • Risk Tools and Databases
  • Superfund Risk Assessment
  • Where you live
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on September 25, 2014
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshots
  • Grants
  • No FEAR Act Data
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Open Government
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions

Follow.