Zobrazeno 1 - 10
of 2 721
pro vyhledávání: '"R. Lei"'
Publikováno v:
The Cryosphere, Vol 18, Pp 153-168 (2024)
Remote sensing extraction of glacial lakes is an effective way of monitoring water body distribution and outburst events. At present, the lack of glacial lake datasets and the edge recognition problem of semantic segmentation networks lead to poor ac
Externí odkaz:
https://doaj.org/article/a5292ed4e63b4e32a46ae824b307df9e
Publikováno v:
The Cryosphere, Vol 18, Pp 273-288 (2024)
Variations in Arctic sea ice are apparent not only in its extent and thickness but also in its internal properties under global warming. The microstructure of summer Arctic sea ice changes due to varying external forces, ice age, and extended melting
Externí odkaz:
https://doaj.org/article/84da4f0475ea42b18fea25ad5aa90da9
Publikováno v:
The Cryosphere, Vol 17, Pp 4609-4628 (2023)
Arctic sea ice outflow to the Atlantic Ocean is essential to the Arctic sea ice mass budget and the marine environments in the Barents and Greenland seas (BGS). With the extremely positive Arctic Oscillation (AO) in winter (JFM) 2020, the feedback me
Externí odkaz:
https://doaj.org/article/385fd0208b314104a4e10f2554751db4
Publikováno v:
Earth System Science Data, Vol 15, Pp 3223-3242 (2023)
Sea ice concentration (SIC) is the main geophysical variable for quantifying change in sea ice in the polar regions. A continuous SIC product is key to informing climate and ecosystem studies in the polar regions. Our study generates a new SIC produc
Externí odkaz:
https://doaj.org/article/4aec0d0d1c244fe3a68c39c5bae80945
Publikováno v:
The Cryosphere, Vol 17, Pp 917-937 (2023)
Landfast ice (LFI) plays a crucial role for both the climate and the ecosystem of the Antarctic coastal regions. We investigate the snow and LFI mass balance in Prydz Bay using observations from 11 sea ice mass balance buoys (IMBs). The buoys were de
Externí odkaz:
https://doaj.org/article/9c2f9ba912344fe1bd8219a01abb2984
Publikováno v:
The Cryosphere, Vol 16, Pp 4779-4796 (2022)
The annual sea ice freeze–thaw cycle plays a crucial role in the Arctic atmosphere—ice–ocean system, regulating the seasonal energy balance of sea ice and the underlying upper-ocean. Previous studies of the sea ice freeze–thaw cycle were ofte
Externí odkaz:
https://doaj.org/article/5703f60a868f49c3af29d69f13ead70b
Publikováno v:
The Cryosphere, Vol 16, Pp 1107-1123 (2022)
The satellite observations unveiled that the July sea ice extent of the Arctic shrank to the lowest value, since 1979, in 2020 with a major ice retreat in the Eurasian shelf seas including Kara, Laptev, and East Siberian seas. Based on the ERA-5 rean
Externí odkaz:
https://doaj.org/article/9b09426c04434175bb0bdfee05744a52
Publikováno v:
The Cryosphere, Vol 15, Pp 1321-1341 (2021)
Arctic sea ice kinematics and deformation play significant roles in heat and momentum exchange between the atmosphere and ocean, and at the same time they have profound impacts on biological processes and biogeochemical cycles. However, the mechanism
Externí odkaz:
https://doaj.org/article/4623961d1fd74ef2876146376d200cc0
Publikováno v:
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol V-2-2020, Pp 35-41 (2020)
High-precision satellite image geolocation is the basis for advanced processing of satellite image data. Aiming at the optimization of the satellite image positioning accuracy based on rational polynomial coefficients (RPC), we propose an RPC image-s
Externí odkaz:
https://doaj.org/article/a5515b01fcee4764aed41ee20371d039
Autor:
T. Krumpen, F. Birrien, F. Kauker, T. Rackow, L. von Albedyll, M. Angelopoulos, H. J. Belter, V. Bessonov, E. Damm, K. Dethloff, J. Haapala, C. Haas, C. Harris, S. Hendricks, J. Hoelemann, M. Hoppmann, L. Kaleschke, M. Karcher, N. Kolabutin, R. Lei, J. Lenz, A. Morgenstern, M. Nicolaus, U. Nixdorf, T. Petrovsky, B. Rabe, L. Rabenstein, M. Rex, R. Ricker, J. Rohde, E. Shimanchuk, S. Singha, V. Smolyanitsky, V. Sokolov, T. Stanton, A. Timofeeva, M. Tsamados, D. Watkins
Publikováno v:
The Cryosphere, Vol 14, Pp 2173-2187 (2020)
In September 2019, the research icebreaker Polarstern started the largest multidisciplinary Arctic expedition to date, the MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) drift experiment. Being moored to an ice floe f
Externí odkaz:
https://doaj.org/article/4e133eac0a5c455db84aff0183980227