Paper No. JAWRA-11-0132-P of the Journal of the American Water Resources Association (JAWRA). Discussions are open until six months from print publication.
Streamflow Changes in the South Atlantic, United States During the Mid- and Late 20th Century1
Version of Record online: 1 AUG 2012
© 2012 American Water Resources Association
JAWRA Journal of the American Water Resources Association
Volume 48, Issue 6, pages 1126–1138, December 2012
How to Cite
Patterson, L. A., Lutz, B. and Doyle, M. W. (2012), Streamflow Changes in the South Atlantic, United States During the Mid- and Late 20th Century. JAWRA Journal of the American Water Resources Association, 48: 1126–1138. doi: 10.1111/j.1752-1688.2012.00674.x
- Issue online: 3 DEC 2012
- Version of Record online: 1 AUG 2012
- Received October 31, 2011; accepted May 2, 2012.
- climate variability/change;
- time series analysis;
- watershed management
Abstract: Repeated severe droughts over the last decade in the South Atlantic have raised concern that streamflow may be systematically decreasing, possibly due to climate variability. We examined the monthly and annual trends of streamflow, precipitation, and temperature in the South Atlantic for the time periods: 1934-2005, 1934-1969, and 1970-2005. Streamflow and climate (temperature and precipitation) trends transitioned ca. 1970. From 1934 to 1969, streamflow and precipitation increased in southern regions and decreased in northern regions; temperature decreased throughout the South Atlantic. From 1970 to 2005, streamflow decreased, precipitation decreased, and temperature increased throughout the South Atlantic. It is unclear whether these will be continuing trends or simply part of a long-term climatic oscillation. Whether these streamflow trends have been driven by climatic or anthropogenic changes, water resources management faces challenging prospects to adapt to decadal-scale persistently wet and dry hydrologic conditions.