Abstract：
Snow and sea ice in the Arctic have the highest albedo of all surface types on the Earth, and it can reflect most of the incident radiation energy back to the sky. Variations in the surface albedo of the Arctic region have a significant effect on the radiation budget of the earth-atmosphere system and global climate. The surface albedo of different kinds of sea ice in the Arctic ocean Pacific region were measured with ASD spectrometer during the 4th Chinese National Arctic Expedition in 2010. Observation period is July 27-August 23,and the geographical range of 72 ° 18'-87 ° 20'N and 152 ° 34'-178 ° 22'W .The measurement results indicated that mean total albedo for sea ice covered by dry snow is 0.82 which is the highest one，and a certain extent decrease when melting. There are a lot of melting ponds in the Arctic Ocean summer, and ponded ice was classified into 3 types by its color. Albedo of white ice is high as 0.54, blue ice is lower as 0.31, gray ice is far lower than the other two types, generally 0.20, and albedo for melting ponds is only 0.16 by calculate. Melting pond is the main reason for the variations in albedo during the Arctic summer.
Robert E. Dickinson. Land surfaces processes and climate-surface albedos and energy balance [J]. Advances in Geophysics, 1983, 25: 305-353.
[2]
XiaoZhen Xiong, Kunt Stamnes, Dan Lubin. Surface Albedo over the Arctic Ocean Derived from AVHRR and Its Validation with SHEBA Data [J]. Journal of Applied Meteorology, 2002, APRIL: 413-425.
[3]
Connor Laurence N, Laxon Semour W, Ridout Andrew L, et al. Comparison of Envisat radar and airborne laser altimeter measurements over Arctic sea ice [J]. Remote Sensing of Environment, 2009, 113: 563-570.
[4]
Julienne Stroeve, Marika M. Holland, Walt Meier, et al. Arctic sea ice decline: Faster than forecast [J]. Geophysical Research Letters, 2007, 34, L09591, doi: 10. 1029/ 2007GL029703
[5]
Judith A. Curry , Julie L. Schramm, William B. Rossow, et al. Overview of Arctic Cloud and Radiation Characteristics [J]. Journal of climate, 1996, 9: 1731-1764.
2.0.CO;2 target="_blank">
[6]
M. M. Holland, C. M. Bitz. Polar amplification of climate change in coupled models [J]. Climate Dynamics, 2003, 21: 221-232.
[7]
Jiping Liu, Zhanhai Zhang, Jun Inoue, et al. Evaluation of snow / ice albedo parameterizations and their impacts on sea ice simulations [J]. International Journal of Climatology, 2007, 27: 81- 91.
[8]
D. K. Perovich, T. C. Grenfell, B. Light, et al. Seasonal evolution of the albedo of multiyear Arctic sea ice [J]. Journal of Geophysical Research, 2002, 107( C10) : 8044, doi: 10. 1029/ 2000JC000438.
[9]
陈立奇.中国首次北极科学考察报告[ R]. 北京: 海洋出版社, 2000: 98- 100.
[10]
张占海.中国第二次北极科学考察报告[ R]. 北京: 海洋出版社, 2004: 202- 204.
[11]
张海生.中国第三次北极科学考察报告[ R].北京: 海洋出版社, 2009: 170- 176.
[12]
Stephen G. Warren. Optical properties of snow [J].Reviews of Geophysics and Space Physics, 1982, 20: 67-89.
[13]
Roberta Pirazzini, Timo Vihma, Mats A. Granskog, et al. Surface albedo measurements over sea ice in the Baltic Sea during the spring snowmelt period [J]. Annals of Glaciology, 2006, 44: 7-14.
[14]
Richard E. Brandt, Stephen G. Warren, Anthony P.Worby, et al. Surface Albedo of the Antarctic Sea Ice Zone [J].Journal of climate, 2005, 18: 3606-3622.
[15]
Kai Rasmus. Field Measurements of the Total and Spectral Albedo of Snow and Ice in Dronning Maud Land, Antarctica [J].Geophysica, 2006, 42: 17-34.
[16]
Mark A. Tschudi, James A. Maslanik, Donald K. Perovich. Derivation of melt pond coverage on Arctic sea ice using MODIS observations [J].Remote Sensing of Environment, 2008, 112 : 2605-2614.
2012, Vol. 24 
