气候变化领域集成服务门户(CCPortal): Quantifying the snowmelt-albedo feedback at Neumayer Station, East Antarctica

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DOI	10.5194/tc-13-1473-2019
	Quantifying the snowmelt-albedo feedback at Neumayer Station, East Antarctica
	Jakobs C.L.; Reijmer C.H.; Kuipers Munneke P.; König-Langlo G.; Van Den Broeke M.R.
发表日期	2019
ISSN	19940416
EISSN	13
起始页码	1473
结束页码	1485
卷号	13 期号:5
英文摘要	We use 24 years (1992-2016) of high-quality meteorological observations at Neumayer Station, East Antarctica, to force a surface energy balance model. The modelled 24-year cumulative surface melt at Neumayer amounts to 1154 mm water equivalent (w.e.), with only a small uncertainty (±3 mm w.e.) from random measurement errors. Results are more sensitive to the chosen value for the surface momentum roughness length and new snow density, yielding a range of 900-1220 mm w.e. Melt at Neumayer occurs only in the months November to February, with a summer average of 50 mm w.e. and large interannual variability (σCombining double low line42 mm w.e.). This is a small value compared to an annual average (1992-2016) accumulation of 415±86 mm w.e. Absorbed shortwave radiation is the dominant driver of temporal melt variability at Neumayer. To assess the importance of the snowmelt-albedo feedback we include and calibrate an albedo parameterisation in the surface energy balance model. We show that, without the snowmelt-albedo feedback, surface melt at Neumayer would be approximately 3 times weaker, demonstrating how important it is to correctly represent this feedback in model simulations of surface melt in Antarctica. © Author(s) 2019. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
来源期刊	The Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118883
作者单位	Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, Netherlands; Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany
推荐引用方式 GB/T 7714	Jakobs C.L.,Reijmer C.H.,Kuipers Munneke P.,et al. Quantifying the snowmelt-albedo feedback at Neumayer Station, East Antarctica[J],2019,13(5).
APA	Jakobs C.L.,Reijmer C.H.,Kuipers Munneke P.,König-Langlo G.,&Van Den Broeke M.R..(2019).Quantifying the snowmelt-albedo feedback at Neumayer Station, East Antarctica.The Cryosphere,13(5).
MLA	Jakobs C.L.,et al."Quantifying the snowmelt-albedo feedback at Neumayer Station, East Antarctica".The Cryosphere 13.5(2019).