Climate impacts on hydrology in the central United States: Application to forecast capability in the Republican River Basin

Jae Ryu, Mark Svoboda, Tsegaye Tadesse, Cody Knutson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

For many water users and policy makers, the potential impacts of climate change and their effect on the variability of regional water resources has become a major concern. Better monitoring of water resources requires a thorough understanding of the relationships between hydrologic variability and ocean-atmosphere dynamics. However, finding significant links between climate change and hydrologic variability has been a challenge for scientists. Oceanic indices and teleconnections explained by ocean-atmosphere interactions, including the Southern Oscillation Index (SOI), Multivariate El Niño and Southern Oscillation Index (MEI), Pacific Decadal Oscillation (PDO), North Atlantic Oscillation index (NAO), Atlantic Multidecadal Oscillation (AMO), Pacific/North American index (PNA), and Madden-Julian Oscillation (MJO), have raised significant attention within scientific communities to identify the most prominent climate signal as an indicator of abnormal climate conditions. This study identifies the relationships between these indices and major meteorological and hydrologic events in the central United States on the basis of their severity and spatial and temporal extents during the water years from 1950 to 1988. The Standardized Precipitation Index (SPI) and the Standardized Hydrology Index (SHI) are also utilized to identify regional climate and hydrologic responses to oceanic indices using a multivariate statistical analysis. The utility of the framework is then demonstrated by its application to forecasting seasonal streamflows in the Republican River Basin in southwestern Nebraska.

Original languageEnglish (US)
Title of host publicationWorld Environmental and Water Resources Congress 2008
Subtitle of host publicationAhupua'a - Proceedings of the World Environmental and Water Resources Congress 2008
DOIs
StatePublished - 2008
EventWorld Environmental and Water Resources Congress 2008: Ahupua'a - Honolulu, HI, United States
Duration: May 12 2008May 16 2008

Publication series

NameWorld Environmental and Water Resources Congress 2008: Ahupua'a - Proceedings of the World Environmental and Water Resources Congress 2008
Volume316

Conference

ConferenceWorld Environmental and Water Resources Congress 2008: Ahupua'a
Country/TerritoryUnited States
CityHonolulu, HI
Period5/12/085/16/08

Keywords

  • Climatic changes
  • Forecasting
  • Hydrology
  • River basins
  • United States

ASJC Scopus subject areas

  • Management, Monitoring, Policy and Law
  • Water Science and Technology
  • Pollution

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