[1] Carlsen T, Birnbaum G, Ehrlich A, et al. 2017. Comparison of different methods to retrieve optical-equivalent snow grain size in central Antarctica. The Cryosphere, 11(6): 2727–2741. doi: 10.5194/tc-11-2727-2017
[2] Comiso J C. 2012. Large decadal decline of the Arctic multiyear ice cover. Journal of Climate, 25(4): 1176–1193. doi: 10.1175/JCLI-D-11-00113.1
[3] Dou Tingfeng, Xiao Cunde, Guo Rui, et al. 2012. Analysis on features of snow cover on the Arctic sea ice in summer of 2008. Journal of Glaciology and Geocryology (in Chinese), 34(1): 43–48
[4] Fetterer F, Untersteiner N. 1998. Observations of melt ponds on Arctic sea ice. Journal of Geophysical Research: Oceans, 103(C11): 24821–24835. doi: 10.1029/98JC02034
[5] Frey K E, Maslanik J A, Kinney J C, et al. 2014. Recent variability in sea ice cover, age, and thickness in the Pacific Arctic region. In: Grebmeier J M, Maslowski W, eds. The Pacific Arctic Region: Ecosystem Status and Trends in a Rapidly Changing Environment. Dordrecht: Springer, 31-63
[6] Grenfell T C, Maykut G A. 1977. The optical properties of ice and snow in the Arctic Basin. Journal of Glaciology, 18(80): 445–463. doi: 10.1017/S0022143000021122
[7] Intrieri J M, Shupe M D, Uttal T, et al. 2002. An annual cycle of Arctic cloud characteristics observed by radar and LIDAR at SHEBA. Journal of Geophysical Research: Oceans, 107(C10): SHE 5-1–SHE 5-15
[8] Istomina L, Heygster G, Huntemann M, et al. 2015. Melt pond fraction and spectral sea ice albedo retrieval from MERIS data-Part 2: Case studies and trends of sea ice albedo and melt ponds in the Arctic for years 2002–2011. The Cryosphere, 9(4): 1567–1578. doi: 10.5194/tc-9-1567-2015
[9] Kwok R, Rothrock D A. 2009. Decline in Arctic sea ice thickness from submarine and ICESat records: 1958−2008. Geophysical Research Letters, 36(15): L15501
[10] Laxon S W, Giles K A, Ridout A L, et al. 2013. CryoSat-2 estimates of Arctic sea ice thickness and volume. Geophysical Research Letters, 40(4): 732–737. doi: 10.1002/grl.50193
[11] Lyapustin A, Tedesco M, Wang Y, et al. 2009. Retrieval of snow grain size over Greenland from MODIS. Remote Sensing of Environment, 113: 1976–1987. doi: 10.1016/j.rse.2009.05.008
[12] Maslanik J, Stroeve J, Fowler C, et al. 2011. Distribution and trends in Arctic sea ice age through spring 2011. Geophysical Research Letters, 38(13): L13502
[13] Nghiem S V, Rigor I G, Perovich D K, et al. 2007. Rapid reduction of Arctic perennial sea ice. Geophysical Research Letters, 34(19): L19504. doi: 10.1029/2007GL031138
[14] Nolin A W, Dozier J. 1993. Estimating snow grain size using AVIRIS data. Remote Sensing of Environment, 44(2−3): 231–238. doi: 10.1016/0034-4257(93)90018-S
[15] Rösel A, Itkin P, King J, et al. 2018. Thin sea ice, thick snow, and widespread negative freeboard observed during N-ICE2015 north of Svalbard. Journal of Geophysical Research: Oceans, 123(2): 1156–1176. doi: 10.1002/2017JC012865
[16] Rösel A, Kaleschke L, Birnbaum G. 2012. Melt ponds on Arctic sea ice determined from MODIS satellite data using an artificial neural network. The Cryosphere, 6(2): 431–446. doi: 10.5194/tc-6-431-2012
[17] Shokr M, Sinha N. 2015. Sea Ice: Physics and Remote Sensing. Washington, DC: American Geophysical Union
[18] Sturm M, Morris K, Massom R. 2013. The winter snow cover of the West Antarctic pack ice: Its spatial and temporal variability. In: Jeffries M O, ed. Antarctic Sea Ice: Physical Processes, Interactions and Variability. Washington, DC: American Geophysical Union, 1–18
[19] Suttles J T, Green R N, Minis P, et al. 1988. Angular radiation models for earth-atmosphere system. Hampton, Virginia, USA: NASA Langley Research Center
[20] Sun Xiaoyu, Shen Hui, Li Chunhua, et al. 2017. Arctic sea ice observation and characteristic analysis based on the seventh National Arctic Research expedition in summer 2016. Marine Forecasts (in Chinese), 34(4): 11–19
[21] Teleti P R, Luis A J. 2013. Sea ice observations in Polar regions: Evolution of technologies in remote sensing. International Journal of Geosciences, 4(7): 1031–1050. doi: 10.4236/ijg.2013.47097
[22] Tschudi M A, Maslanik J A, Perovich D K. 2008. Derivation of melt pond coverage on Arctic sea ice using MODIS observations. Remote Sensing of Environment, 112(5): 2605–2614. doi: 10.1016/j.rse.2007.12.009
[23] Warren S G, Rigor I G, Untersteiner N, et al. 1999. Snow depth on Arctic sea ice. Journal of Climate, 12(6): 1814–1829. doi: 10.1175/1520-0442(1999)012<1814:SDOASI>2.0.CO;2
[24] Webster M A, Rigor I G, Nghiem S V, et al. 2014. Interdecadal changes in snow depth on Arctic Sea Ice. Journal of Geophysical Research: Oceans, 119(8): 5395–5406. doi: 10.1002/2014JC009985
[25] Wiebe H, Heygster G, Zege E, et al. 2013. Snow grain size retrieval SGSP from optical satellite data: validation with ground measurements and detection of snow fall events. Remote Sensing of Environment, 128: 11–20. doi: 10.1016/j.rse.2012.09.007
[26] Wiscombe W J, Warren S G. 1980. A model for the spectral albedo of snow. I: Pure snow. Journal of the Atmospheric Sciences, 37(12): 2712–2733. doi: 10.1175/1520-0469(1980)037<2712:AMFTSA>2.0.CO;2
[27] Xia Wentao, Xie Hongjie, Ke Changqing. 2014. Assessing trend and variation of Arctic sea-ice extent during 1979−2012 from a latitude perspective of ice edge. Polar Research, 33(1): 21249. doi: 10.3402/polar.v33.21249
[28] Xiao Cunde, Qin Dahe, Ren Jiawen. 1997. The feature of sea ice cover, snow distribution and its densification in the central Arctica. Scientia Geographica Sinica (in Chinese), 17(4): 289–296
[29] Yackel J J, Nandan V, Mahmud M, et al. 2018. A spectral mixture analysis approach to quantify Arctic first-year sea ice melt pond fraction using QuickBird and MODIS reflectance data. Remote Sensing of Environment, 204: 704–716. doi: 10.1016/j.rse.2017.09.030
[30] Zege E, Katsev I, Malinka A, et al. 2008. New algorithm to retrieve the effective snow grain size and pollution amount from satellite data. Annals of Glaciology, 49: 139–144. doi: 10.3189/172756408787815004