气候变化领域集成服务门户(CCPortal): Local reduction of decadal glacier thickness loss through mass balance management in ski resorts

CCPortal

DOI	10.5194/tc-10-2941-2016
	Local reduction of decadal glacier thickness loss through mass balance management in ski resorts
	Fischer A.; Helfricht K.; Stocker-Waldhuber M.
发表日期	2016
ISSN	19940416
卷号	10 期号:6
英文摘要	For Austrian glacier ski resorts, established in the 1970s and 1980s during a period of glacier advance, negative mass balances with resulting glacier area loss and decrease in surface elevation present an operational challenge. Glacier cover, snow farming, and technical snow production were introduced as adaptation measures based on studies on the effect of these measures on energy and mass balance. After a decade of the application of the various measures, we studied the transition from the proven short-term effects of the measures on mass balance to long-term effects on elevation changes. Based on lidar digital elevation models and differential GPS measurements, decadal surface elevation changes in 15 locations with mass balance management were compared to those without measures (apart from piste grooming) in five Tyrolean ski resorts on seven glaciers. The comparison of surface elevation changes presents clear local differences in mass change, and it shows the potential to retain local ice thickness over 1 decade. Locally up to 21.1g ± 0.4g of ice thickness was preserved on mass balance managed areas compared to non-maintained areas over a period of 9gyears. In this period, mean annual thickness loss in 15 of the mass balance managed profiles is 0.54g±g0.04gmgyrg-1 lower (−0.23g±g0.04gmgyrg-1on average) than in the respective reference areas (-0.78g±g0.04gmgyrg-1). At two of these profiles the surface elevation was preserved altogether, which is promising for a sustainable maintenance of the infrastructure at glacier ski resorts. In general the results demonstrate the high potential of the combination of mass balance management by snow production and glacier cover, not only in the short term but also for multi-year application to maintain the skiing infrastructure. © 2016 Author(s).
学科领域	digital elevation model; elevation; glacier; glacier mass balance; GPS; ice thickness; infrastructure planning; recreational development; recreational facility; snow cover; sustainability
语种	英语
scopus关键词	digital elevation model; elevation; glacier; glacier mass balance; GPS; ice thickness; infrastructure planning; recreational development; recreational facility; snow cover; sustainability
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119534
作者单位	Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences, Innsbruck, 6020, Austria; Department of Geography Physical Geography, Catholic University of Eichstätt-Ingolstadt, Eichstätt, 85072, Germany
推荐引用方式 GB/T 7714	Fischer A.,Helfricht K.,Stocker-Waldhuber M.. Local reduction of decadal glacier thickness loss through mass balance management in ski resorts[J],2016,10(6).
APA	Fischer A.,Helfricht K.,&Stocker-Waldhuber M..(2016).Local reduction of decadal glacier thickness loss through mass balance management in ski resorts.Cryosphere,10(6).
MLA	Fischer A.,et al."Local reduction of decadal glacier thickness loss through mass balance management in ski resorts".Cryosphere 10.6(2016).