Skip to Main Content
Identify temporal trend of air temperature and its impact on forest stream flow in Lower Mississippi River Alluvial Valley using wavelet analysisAuthor(s): Ying Ouyang; Prem B. Parajuli; Yide Li; Theodor D. Leininger; Gary Feng
Source: Journal of Environmental Management
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
Download Publication (6.0 MB)
DescriptionCharacterization of stream flow is essential to water resource management, water supply planning, environmental protection, and ecological restoration; while air temperature variation due to climate change can exacerbate stream flow and add instability to the flow. In this study, the wavelet analysis technique was employed to identify temporal trend of air temperature and its impact upon forest stream flows in Lower Mississippi River Alluvial Valley (LMRAV). Four surface water monitoring stations, which locate near the headwater areas with very few land use disturbances and the long-term data records (60 e90 years) in the LMRAV, were selected to obtain stream discharge and air temperature data. The wavelet analysis showed that air temperature had an increasing temporal trend around its mean value during the past several decades in the LMRAV, whereas stream flow had a decreasing temporal trend around its average value at the same time period in the same region. Results of this study demonstrated that the climate in the LMRAV did get warmer as time elapsed and the streams were drier as a result of warmer air temperature. This study further revealed that the best way to estimate the temporal trends of air temperature and stream flow was to perform the wavelet transformation around their mean values.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationOuyang, Ying; Parajuli, Prem B.; Li, Yide; Leininger, Theodor D.; Feng, Gary. 2017.Identify temporal trend of air temperature and its impact on forest stream flow in Lower Mississippi River Alluvial Valley using wavelet analysis. Journal of Environmental Management. 198: 21-31. 11 p. https://doi.org/10.1016/j.jenvman.2017.05.014.
KeywordsAir temperature, Climate change, LMRAV, Stream discharge, Wavelet analysis
- Base flow-driven shifts in tropical stream temperature regimes across a mean annual rainfall gradient
- The paradox of cooling streams in a warming world: regional climate trends do not parallel variable local trends in stream temperature in the Pacific continental United States
- Evidence of climate change impact on stream low flow from the tropical mountain rainforest watershed in Hainan Island, China
XML: View XML