EPA Science Inventory

Climate Change Impacts on US Water Quality using two Models: HAWQS and US Basins

Citation:

Climate Change Impacts on US Water Quality using two Models: HAWQS and US Basins. WATER. MDPI AG, Basel, Switzerland.

Description:

Climate change and freshwater quality are well-linked. Changes in climate result in changes in streamflow and rising water temperatures, which impact biochemical reaction rates and increase stratification in lakes and reservoirs. Using two water quality modeling systems (the Hydrologic and Water Quality System; HAWQS and US Basins), five climate models, and two greenhouse gas (GHG) mitigation policies, we assess future water quality in the continental U.S. to 2100 considering four water quality parameters: water temperature, dissolved oxygen, total nitrogen, and total phosphorus. Once these parameters are aggregated into a water quality index, we find that, while the water quality models differ under the baseline, there is more agreement between future projections.

Purpose/Objective:

Estimate the impacts of climate change on water quality in the contiguous U.S.

URLs/Downloads:

Journal Article   (PDF,NA pp, 12983 KB,  about PDF)

Record Details:

Record Type: DOCUMENT (JOURNAL/PEER REVIEWED JOURNAL)
Start Date: 02/01/2017
Completion Date: 02/01/2017
Record Last Revised: 11/29/2017
Record Created: 01/19/2017
Record Released: 01/19/2017
OMB Category: Other
Record ID: 335102

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF AIR AND RADIATION

OFFICE OF ATMOSPHERIC PROGRAMS

CLIMATE CHANGE DIVISION

CLIMATE SCIENCE AND IMPACTS BRANCH