Climate Change Impact on the Tuul River Flow in a Semiarid Region in Mongolia
| Autor: | Chang-Hee Lee, Seung-Hoon Yu, Chinzorig Sukhbaatar, Janchivdorj Lunten, Raja Umer Sajjad |
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| Rok vydání: | 2017 |
| Předmět: |
Time Factors
010504 meteorology & atmospheric sciences Soil and Water Assessment Tool Climate Change 0208 environmental biotechnology Climate change 02 engineering and technology 01 natural sciences Rivers Evapotranspiration Streamflow Environmental Chemistry Precipitation Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology Hydrology Ecological Modeling Mongolia Pollution 020801 environmental engineering Air temperature Period (geology) Environmental science Positive relationship Seasons |
| Zdroj: | Water Environment Research. 89:527-538 |
| ISSN: | 1061-4303 1945-2012 |
| DOI: | 10.2175/106143016x14798353399223 |
| Popis: | This study investigated the impact of climate change on the Tuul River flow in a semiarid region in Mongolia using statistical methods and the Soil and Water Assessment Tool (SWAT). The authors found that the precipitation showed cyclic variability (three dry and two wet periods) at inter- and multi-decadal scales throughout the study period (1945-2012). Both river flow and actual evapotranspiration (ET) showed a positive relationship with precipitation. In addition, the river flow further decreased due to increased water loss in percentage via actual ET even though the amount of actual ET decreased during dry periods. A significant increase in air temperature by 1.3 to 1.8 °C was recorded during latest dry period (1996-2012). Increase in temperature resulted in an added stressor, where water loss in percentage via actual ET increased more and resulted in an additional decrease in the river flow. This study concluded that precipitation has a stronger influence on the Tuul River flow than temperature. |
| Databáze: | OpenAIRE |
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