Title Variability of atmospheric freezing- level height and its impact on the cryosphere in China
Author Zhang Yinsheng; Guo Y.
Author Affil Zhang Yinsheng, Chinese Academy of Sciences, Institute of Tibetan Plateau Research, Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Beijing, China. Other: China Meteorological Administration, China
Source Annals of Glaciology, 52(58), p.81-88, . Publisher: International Glaciological Society, Cambridge, United Kingdom. ISSN: 0260-3055
Publication Date 2011
Notes In English. 26 refs. GeoRef Acc. No: 310207
Index Terms air temperature; climatic change; freezing; glaciers; global change; global warming; permafrost; snow cover; statistical analysis; temperature; China; air; Asia; climate change; cryosphere; decadal variations; El Nino Southern Oscillation; Far East; heterogeneity; radiosonde observations; seasonal variations; spatial distribution; spatial variations; time series analysis
Abstract We used atmospheric air-temperature data from the Chinese radiosonde network to analyze changes in freezing-level heights (FLHs) during the past 48 years and studied their impacts on the cryosphere.We examined radiosonde time-series data from 92 selected Chinese radiosonde network stations. Generally, FLH exhibited a latitudinal zone, declining from the south. The FLH trend during 1958-2005 showed spatial inhomogeneity, most uniform distributions during autumn, and significant upward trends. Temporal variability of FLH in eastern China was briefly associated with El Nino Southern Oscillation events, but the causes of FLH changes in western China require further investigation. FLH in western and northern China has mostly increased since 1958, and might be considered a possible indicator of cryospheric change during the second half of the 20th century. There were significant correlations between FLH and changes in snow cover, glaciers and permafrost.
URL http://www.igsoc.org/annals/v52/58/a58A020.pdf
Publication Type journal article
Record ID 65007356