Impact of climate change on the Central Pamir hydrological regime (PAMIR WATER)

PAMIR WATER aims on determining hydrological key parameters for a representative Pamir watershed of the Gunt and Shakhdara rivers. In detail, the impact of climate change on precipitation, glacier extent and evolution, as well as surface and groundwater discharge shall be determined. A broad range of methods are appllied that include completion of existing time series of hydrometeorological datasets, trace-element and isotope analyses, conceptual model design and application of such. This project is funded by the BMBF and part of the research program "Central Asia: Monsoon dynamics and geo-ecosystems"(CAME).




Hydrological system analyses and determination of key-parameters using remote sensing data (Work Package 4 of the Pamir Water Project)

Eric Pohl

YashilkulUnlike in the Himalayas and Hindu-Kush where precipitation is mainly provided as rain during the Indian Summer Monsoon (ISM), the Central Pamirs receive their precipitation mostly as snow during winter and spring by the eastward Westerlies. Apart from providing order of magnitude less water in total, the actual available water is due to the snow melt that occurs from the end of spring to the late summer. As a result the water is available within a short period of time, almost as if provided by a storm event. Even though the total precipitation amount might be low, this feature enables the mobilization of huge amounts of sediments. A hydrological model, run within the JAMS ( modeling framework, exlusively fed with remote sensing data as input is used to provide spatially distributed different discharge components to be analyzed with in-situ data.