Attribution of streamflow trends in snow and glacier melt‐dominated catchments of the <scp>T</scp>arim <scp>R</scp>iver, Central <scp>A</scp>sia

Duethmann, Doris; Bolch, Tobias; Farinotti, Daniel; Kriegel, David; Vorogushyn, Sergiy; Merz, Bruno; Pieczonka, Tino; Jiang, Tong; Su, Buda; Güntner, Andreas

doi:10.1002/2014wr016716

Cited by 172 publications

(166 citation statements)

References 102 publications

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“…These results, derived from various methods (e.g., water balance, temperature-index model, and hydrological model), showed large variations among different mountain ranges. The contributions of meltwater to runoff reached a peak of over 50% at the glacier-dominated Tarim Basin of South Xinjiang [13,51]. About 25-48% [18,19] or 18-28% [52] of annual runoff at catchments fed by snow and glacier meltwater in the Tienshan Mountains was contributed to by meltwater.…”

Section: The Effects Of Snow and Glacier Meltwater On Runoffmentioning

confidence: 99%

Snowmelt Water Alters the Regime of Runoff in the Arid Region of Northwest China

Bai

Shi³

et al. 2018

Water

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Seasonal snowmelt water from mountainous areas is critical for water supply in arid regions. Snowmelt profoundly affects the parameterization of the Budyko framework, which describes the long-term relationship between precipitation and runoff. This is true in Xinjiang, a representative arid region in Northwest China. However, the effects of snowmelt water on the water balance in this region remain unclear. Based on observed runoff data in 64 catchments of Xinjiang during 2000-2010, we analyzed the effects of meltwater in the local water balance both spatially and temporally through the Budyko curve and redundancy analysis (RDA) methods, and then investigated the influences of changing meltwater on runoff. Inclusion of snowmelt water into the item of the water availability significantly improved the performance of the Budyko equation for predicting runoff. The results of RDA showed that snowmelt water, potential evaporation (PET), and rainfall combined explained 66% of the spatial variations in runoff, while the individual effects of snowmelt water, PET, and rainfall were 19%, 13%, and 1%, respectively, with the interactions among the three variables being 16%. These results suggest that the accelerating changes of meltwater due to climate warming will significantly alter the regimes of runoff in these regions.

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Section: The Effects Of Snow and Glacier Meltwater On Runoffmentioning

confidence: 99%

Snowmelt Water Alters the Regime of Runoff in the Arid Region of Northwest China

Bai

Shi³

et al. 2018

Water

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“…Duethmann et al (2015) For the Kumalike River, glacier geometry changes lead to a reduction of 14-23 % of streamflow increase compared to constant glacier geometry.…”

Section: Wasa Modelmentioning

confidence: 99%

Review article: Hydrological modeling in glacierized catchments of central Asia – status and challenges

Chen

Fang

et al. 2017

Hydrol. Earth Syst. Sci.

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Abstract. Meltwater from glacierized catchments is one of the most important water supplies in central Asia. Therefore, the effects of climate change on glaciers and snow cover will have increasingly significant consequences for runoff. Hydrological modeling has become an indispensable research approach to water resources management in large glacierized river basins, but there is a lack of focus in the modeling of glacial discharge. This paper reviews the status of hydrological modeling in glacierized catchments of central Asia, discussing the limitations of the available models and extrapolating these to future challenges and directions. After reviewing recent efforts, we conclude that the main sources of uncertainty in assessing the regional hydrological impacts of climate change are the unreliable and incomplete data sets and the lack of understanding of the hydrological regimes of glacierized catchments of central Asia. Runoff trends indicate a complex response to changes in climate. For future variation of water resources, it is essential to quantify the responses of hydrologic processes to both climate change and shrinking glaciers in glacierized catchments, and scientific focus should be on reducing uncertainties linked to these processes.

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“…Immerzeel et al, 2010;Kaser et al, 2010;Duethmann et al, 2015), which is of particular importance for different sectors including agriculture and energy production (Siegfried et al, 2012). With the ongoing climate change the corresponding variations in glacier area and volume in this region are considerable.…”

Section: Glaciers In Central Asiamentioning

confidence: 99%

Re-establishing glacier monitoring in Kyrgyzstan and Uzbekistan, Central Asia

Hoelzle

Azisov

Barandun

et al. 2017

Geosci. Instrum. Method. Data Syst.

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Abstract. Glacier mass loss is among the clearest indicators of atmospheric warming. The observation of these changes is one of the major objectives of the international climate monitoring strategy developed by the Global Climate Observing System (GCOS). Long-term glacier mass balance measurements are furthermore the basis for calibrating and validating models simulating future runoff of glacierised catchments. This is essential for Central Asia, which is one of the driest continental regions of the Northern Hemisphere. In the highly populated regions, water shortage due to decreased glacierisation potentially leads to pronounced political instability, drastic ecological changes and endangered food security. As a consequence of the collapse of the former Soviet Union, however, many valuable glacier monitoring sites in the Tien Shan and Pamir Mountains were abandoned. In recent years, multinational actors have re-established a set of important in situ measuring sites to continue the invaluable long-term data series. This paper introduces the applied monitoring strategy for selected glaciers in the Kyrgyz and Uzbek Tien Shan and Pamir, highlights the existing and the new measurements on these glaciers, and presents an example for how the old and new data can be combined to establish multi-decadal mass balance time series. This is crucial for understanding the impact of climate change on glaciers in this region.

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Attribution of streamflow trends in snow and glacier melt‐dominated catchments of the Tarim River, Central Asia

Cited by 172 publications

References 102 publications

Snowmelt Water Alters the Regime of Runoff in the Arid Region of Northwest China

Snowmelt Water Alters the Regime of Runoff in the Arid Region of Northwest China

Review article: Hydrological modeling in glacierized catchments of central Asia – status and challenges

Re-establishing glacier monitoring in Kyrgyzstan and Uzbekistan, Central Asia

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