Response of runoff in the source region of the Yellow River to climate warming

Yong-chao, Lan; Zhao, Guoqing; Zhang, Yaonan; Wen, Jun; Jin-qi, Liu; Xing-lin, HU

doi:10.1016/j.quaint.2010.03.006

Cited by 72 publications

(47 citation statements)

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“…In the headstream region of the Yellow River, precipitation is the main recharge source to runoff, with a ratio of 63 %. Local observations revealed that there was an increasing trend in runoff as this region was becoming warmer and wetter during the period 2000-2012 (Lan et al, 2010(Lan et al, , 2013Wang et al, 2014 In addition to the above large areas, there are also some other small regions showing strong TWS changes from 2003 to 2013. Along the northeast country border, there is significant TWS increase (0.34 ∼ 1.19 cm yr −1 ); this is mostly contributed by winter.…”

Section: Spatial Pattern Of Linear Trend Analysismentioning

confidence: 99%

Variations in water storage in China over recent decades from GRACE observations and GLDAS

Wang

et al. 2016

Nat. Hazards Earth Syst. Sci.

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Abstract. We applied Gravity Recovery and Climate Experiment (GRACE) Tellus products in combination with Global Land Data Assimilation System (GLDAS) simulations and data from reports, to analyze variations in terrestrial water storage (TWS) in China as a whole and eight of its basins from 2003 to 2013. Amplitudes of TWS were well restored after scaling, and showed good correlations with those estimated from models at the basin scale. TWS generally followed variations in annual precipitation; it decreased linearly in the Huai River basin (−0.56 cm yr −1 ) and increased with fluctuations in the Changjiang River basin (0.35 cm yr −1 ), Zhujiang basin (0.55 cm yr −1 ) and southeast rivers basin (0.70 cm yr −1 ). In the Hai River basin and Yellow River basin, groundwater exploitation may have altered TWS's response to climate, and TWS kept decreasing until 2012. Changes in soil moisture storage contributed over 50 % of variance in TWS in most basins. Precipitation and runoff showed a large impact on TWS, with more explained TWS in the south than in the north. North China and southwest rivers region exhibited long-term TWS depletions. TWS has increased significantly over recent decades in the middle and lower reaches of Changjiang River, southeastern coastal areas, as well as the Hoh Xil, and the headstream region of the Yellow River in the Tibetan Plateau. The findings in this study could be helpful to climate change impact research and disaster mitigation planning.

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Section: Spatial Pattern Of Linear Trend Analysismentioning

confidence: 99%

Variations in water storage in China over recent decades from GRACE observations and GLDAS

Wang

et al. 2016

Nat. Hazards Earth Syst. Sci.

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“…The study area has a cold, semi-humid climate, characterized by the typical QinghaiTibetan Plateau climate system. The climate in this region is strongly governed by the Asian monsoon, which brings moist, warm air in the summer and dry, cool air during the winter (Lan et al, 2010). Annual average daily temperature varies between −4 and 2 • C from the southeast to the northeast.…”

Section: Study Areamentioning

confidence: 99%

“…Atmospheric circulation and moisture strongly influence the monsoon climate. The monsoon climate in the study region is caused by the temperature difference between land and sea, which brings cold, dry air from the northwest in winter and warm, moist air from the Bay of Bengal and the western Pacific Ocean in summer (Lan et al, 2010). Sea level pressure, geo-potential height, air temperature, wind speed and humidity are often used for downscaling surface air temperature (Anandhi et al, 2009;Wilby et al, 2002).…”

Section: Choice Of Predictorsmentioning

confidence: 99%

Expected changes in future temperature extremes and their elevation dependency over the Yellow River source region

Maskey

Uhlenbrook

2013

Hydrol. Earth Syst. Sci.

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Abstract. Using the Statistical DownScaling Model (SDSM) and the outputs from two global climate models, we investigate possible changes in mean and extreme temperature indices and their elevation dependency over the Yellow River source region for the two future periods 2046-2065 and 2081-2100 under the IPCC SRES A2, A1B and B1 emission scenarios. Changes in interannual variability of mean and extreme temperature indices are also analyzed. The validation results show that SDSM performs better in reproducing the maximum temperature-related indices than the minimum temperature-related indices. The projections show that by the middle and end of the 21st century all parts of the study region may experience increases in both mean and extreme temperature in all seasons, along with an increase in the frequency of hot days and warm nights and with a decrease in frost days. By the end of the 21st century, interannual variability increases in all seasons for the frequency of hot days and warm nights and in spring for frost days while it decreases for frost days in summer. Autumn demonstrates pronounced elevation-dependent changes in which around six out of eight indices show significant increasing changes with elevation.

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“…Numerous studies have addressed causes for the 1990s discharge decline. Most focused on climatic changes, especially variations of precipitation and surface air temperature [6][7][8][9][10][11][12][13][14]. It is well established that rainfall amount and intensity directly affect runoff [7,13,14].…”

mentioning

confidence: 99%

“…It is well established that rainfall amount and intensity directly affect runoff [7,13,14]. However, there is disagreement among researchers as to the effect of warming on runoff [7,8,10,12,14]. Evaporation is key to this issue, but there is a lack in observation of actual evaporation.…”

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confidence: 99%

Response of water budget to recent climatic changes in the source region of the Yellow River

Zhou

Huang

2012

Chin. Sci. Bull.

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Discharge in the source region of the Yellow River significantly declined after 1990. China Meteorological Administration (CMA) data show that precipitation in this region was low in the 1990s but returned to above normal after 2002; in recent decades there has been rapid warming of surface air, moistening and wind speed decrease. To investigate the influences of recent climatic changes on the water budget, this study simulates the surface water budget at CMA stations within and surrounding the source region during 1960-2006, using an improved land surface model. Results indicate that the spatial pattern of precipitation change is an important factor (except for precipitation amount and intensity) in determining the response of runoff to precipitation changes. Low runoff in the 1990s was consistent with precipitation amount and intensity. The recovery of precipitation after 2002 is mainly from increased precipitation in the dry area of the source region. Evaporation was mainly limited by water availability in this dry area, and thus most of the precipitation increase was evaporated. By contrast, energy availability was a more important influence on evaporation in the wet area. There was more evaporation in the wet area because of rapid warming, although precipitation amount partly decreased and partly increased, contributing to the reduction of runoff after 2002. This control on evaporation and its response, together with the modified spatial pattern of precipitation, produced a water budget unfavorable for runoff generation in the source region during recent years.water budget, spatial pattern of precipitation, Yellow River source region, climatic changes, runoff, evaporation Citation:Zhou D G, Huang R H. Response of water budget to recent climatic changes in the source region of the Yellow River.

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Response of runoff in the source region of the Yellow River to climate warming

Cited by 72 publications

References 1 publication

Variations in water storage in China over recent decades from GRACE observations and GLDAS

Variations in water storage in China over recent decades from GRACE observations and GLDAS

Expected changes in future temperature extremes and their elevation dependency over the Yellow River source region

Response of water budget to recent climatic changes in the source region of the Yellow River

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