An extreme drought event in the central Tien Shan area in the year 1945

Li, J.; Cook, Edward R.; Chen, Fahu; Gou, Xiaohua; D’Arrigo, Rosanne; Yuan, Yanbin

doi:10.1016/j.jaridenv.2010.03.002

Cited by 34 publications

(28 citation statements)

References 43 publications

(56 reference statements)

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“…Santos et al, 2007;Trigo et al, 2010;Li et al, 2010). A more generally applicable typology of hydrological drought is needed, both for process understanding of drought propagation and for improvement of drought forecasting and management.…”

Section: A F Van Loon and H A J Van Lanen: Hydrological Drought mentioning

confidence: 99%

A process-based typology of hydrological drought

Loon

Lanen

2012

Hydrol. Earth Syst. Sci.

331

270

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Abstract. Hydrological drought events have very different causes and effects. Classifying these events into distinct types can be useful for both science and management. We propose a hydrological drought typology that is based on governing drought propagation processes derived from catchment-scale drought analysis. In this typology six hydrological drought types are distinguished,warm snow season drought, and (vi) composite drought. The processes underlying these drought types are the result of the interplay of temperature and precipitation at catchment scale in different seasons. As a test case, about 125 groundwater droughts and 210 discharge droughts in five contrasting headwater catchments in Europe have been classified. The most common drought type in all catchments was the classical rainfall deficit drought (almost 50 % of all events), but in the selected catchments these were mostly minor events. If only the five most severe drought events of each catchment are considered, a shift towards more rain-to-snow-season droughts, warm snow season droughts, and composite droughts was found. The occurrence of hydrological drought types is determined by climate and catchment characteristics. The drought typology is transferable to other catchments, including outside Europe, because it is generic and based upon processes that occur around the world. A general framework is proposed to identify drought type occurrence in relation to climate and catchment characteristics.

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Section: A F Van Loon and H A J Van Lanen: Hydrological Drought mentioning

confidence: 99%

A process-based typology of hydrological drought

Loon

Lanen

2012

Hydrol. Earth Syst. Sci.

331

270

View full text Add to dashboard Cite

show abstract

“…Droughts like those in 2003 and 2011 are predicted to become more frequent in the future (Solomon, 2007), which calls for a better understanding of the response of different systems to droughts. Focusing on single processes in one catchment allows for a detailed analysis of the occurrence of different processes during an individual drought event (Santos et al, 2007;Trigo et al, 2010;Li et al, 2010). However, there are not enough observations of historical drought events to perform such a detailed analysis for several events and catchments with resulting detailed links between cause and effect.…”

Section: Introductionmentioning

confidence: 99%

Quantifying sensitivity to droughts – an experimental modeling approach

Staudinger

Weiler

Seibert

2015

Hydrol. Earth Syst. Sci.

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Abstract. Meteorological droughts like those in summer 2003 or spring 2011 in Europe are expected to become more frequent in the future. Although the spatial extent of these drought events was large, not all regions were affected in the same way. Many catchments reacted strongly to the meteorological droughts showing low levels of streamflow and groundwater, while others hardly reacted. Also, the extent of the hydrological drought for specific catchments was different between these two historical events due to different initial conditions and drought propagation processes. This leads to the important question of how to detect and quantify the sensitivity of a catchment to meteorological droughts. To assess this question we designed hydrological model experiments using a conceptual rainfall-runoff model. Two drought scenarios were constructed by selecting precipitation and temperature observations based on certain criteria: one scenario was a modest but constant progression of drying based on sorting the years of observations according to annual precipitation amounts. The other scenario was a more extreme progression of drying based on selecting months from different years, forming a year with the wettest months through to a year with the driest months. Both scenarios retained the observed intra-annual seasonality for the region. We evaluated the sensitivity of 24 Swiss catchments to these scenarios by analyzing the simulated discharge time series and modeled storage. Mean catchment elevation, slope and area were the main controls on the sensitivity of catchment discharge to precipitation. Generally, catchments at higher elevation and with steeper slopes appeared less sensitive to meteorological droughts than catchments at lower elevations with less steep slopes.

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“…It belongs to the continental monsoon climate and is sensitive to global change. In Xinjiang, water vapor primarily comes from three sources: the Pacific water vapor in the east (Ye et al, 2000;Wu et al, 2010), the Atlantic and the Arctic Ocean water vapor in the mainly west (Yuan et al, 2003;Park et al, 2010), and the Indian Ocean in the south (Zhong et al, 2007;Li et al, 2010). Some researchers believe that in the past 3500 years, there is a greater impact on northern Xinjiang after the South Asian monsoon changed to the westerlies (Zhong et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal trends of climate change in Xinjiang, China

et al. 2011

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Temperature and precipitation time series datasets from 1961 to 2005 at 65 meteorological stations were used to reveal the spatial and temporal trends of climate change in Xinjiang, China. Annual and seasonal mean air temperature and total precipitation were analyzed using Mann-Kendall (MK) test, inverse distance weighted (IDW) interpolation, and R/S methods. The results indicate that: (1) both temperature and precipitation increased in the past 45 years, but the increase in temperature is more obvious than that of precipitation;(2) for temperature increase, the higher the latitude and the higher the elevation the faster the increase, though the latitude has greater influence on the increase. Northern Xinjiang shows a faster warming than southern Xinjiang, especially in summer; (3) increase of precipitation occurs mainly in winter in northern Xinjiang and in summer in southern Xinjiang. Ili, which has the most precipitation in Xinjiang, shows a weak increase of precipitation; (4) although both temperature and precipitation increased in general, the increase is different inside Xinjiang; (5) Hurst index (H) analysis indicates that climate change will continue the current trends.

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An extreme drought event in the central Tien Shan area in the year 1945

Cited by 34 publications

References 43 publications

A process-based typology of hydrological drought

A process-based typology of hydrological drought

Quantifying sensitivity to droughts – an experimental modeling approach

Spatial and temporal trends of climate change in Xinjiang, China

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