TY - Generic T1 - Seasonal snowpack dynamics and chemistry in the Sierra Nevada (California, USA) and the Tien Shan (Xinjiang Province, China) T2 - 59th Annual Western Snow Conference Y1 - 1991 A1 - Tonnessen, K. A. A1 - Elder, K.J. A1 - Kattelmann, R.C. A1 - Williams, M.W. KW - China watershed, Season snow-covered basins, Snowpack chemistry, Snowpack dynamics AB - As part of NASA's Earth Observing System (EOS) Program we are investigating the hydrology and hydrochemistry of small, headwater basins that are seasonally snow-covered. Two of these study sites are the Emerald watershed on the western slope of the Sierra Nevada, Califonia (2800 m) and Dry Cirque, located at the headwaters of Urumqi River in the Tien Shan, northwestern china (3800 m).The objective of this research is to understand the physical and chemical dynamics of seasonally snow-covered regions of the earth in an effort to detect changes in global hydrologic and biogeochemical cycles. To realize this objective we are studying drainages ranging from 1 sq km to 100 sq km in area. Field surveys will be used in conjunction with remote-sensing data to predict and monitor the impact of climate change. JF - 59th Annual Western Snow Conference T3 - Proceedings of the 59th Annual Western Snow Conference PB - Western Snow Conference CY - Juneau, Alaska UR - sites/westernsnowconference.org/PDFs/1991Tonnessen.pdf ER -