Results 21 to 30 of about 16,008 (226)

Pre-late Weichselian podzol soil, permafrost features and lithostratigraphy at Penttilänkangas, western Finland [PDF]

Bulletin of the Geological Society of Finland, 2009
The ridge-shaped Penttilänkangas accumulation in western Finland is glaciofluvial in origin: probably an ice-marginal subaquatic fan, reworked and covered with younger deep water, littoral, eolian and glacial sediments.
R. Pitkäranta
doaj   +1 more source

Glacio-Geomorphological Observations in Cape Omega on the Prince Olav Coast, East Antarctica

Antarctic Record, 1980
The reconnaissance geomorphological survey of Cape Omega was made by the author in January 1977. Cape Omega has glaciated features same as other ice-free areas in the vicinity of Syowa Station.
Kiichi MORIWAKI
doaj   +1 more source

Antarctic petrels ‘on the ice rocks’: wintering strategy of an Antarctic seabird [PDF]

Royal Society Open Science, 2020
There is a paucity of information on the foraging ecology, especially individual use of sea-ice features and icebergs, over the non-breeding season in many seabird species. Using geolocators and stable isotopes, we defined the movements, distribution and
K. Delord, A. Kato, A. Tarroux, F. Orgeret, C. Cotté, Y. Ropert-Coudert, Y. Cherel, S. Descamps   +7 more
doaj   +1 more source

The glacial geomorphology of the Lago Buenos Aires and Lago Pueyrredón ice lobes of central Patagonia

Journal of Maps, 2017
This paper presents a glacial geomorphological map of landforms produced by the Lago General Carrera–Buenos Aires and Lago Cochrane–Pueyrredón ice lobes of the former Patagonian Ice Sheet.
Jacob M. Bendle, Varyl R. Thorndycraft, Adrian P. Palmer   +2 more
doaj   +1 more source

Can Mineral Oil Slicks Be Distinguished From Newly Formed Sea Ice Using Synthetic Aperture Radar?

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
In this feasibility study discriminating oil slicks and newly formed sea ice using synthetic aperture radar (SAR) imagery is investigated, using imagery from the L-band high-resolution uninhabited aerial vehicle synthetic aperture radar (UAVSAR) airborne
A. Malin Johansson, Martine M. Espeseth, Camilla Brekke, Benjamin Holt   +3 more
doaj   +1 more source

Oriented ice eddy detection network based on the Sentinel-1 dual-polarization data

Frontiers in Marine Science
The complex convergence of cold and warm ocean currents in the Nordic Seas provides suitable conditions for the formation and development of eddies. In the Marginal Ice Zones (MIZs), ice eddies contribute to the accelerated melting of surface sea ice by ...
Jinqun Wu, Jinqun Wu, Yiqin Zheng, Tingting Wang, Chunyong Ma, Chunyong Ma, Ge Chen, Ge Chen   +7 more
doaj   +1 more source

Turbulence in the stratified boundary layer under ice: observations from Lake Baikal and a new similarity model [PDF]

Hydrology and Earth System Sciences, 2020
Seasonal ice cover on lakes and polar seas creates seasonally developing boundary layer at the ice base with specific features: fixed temperature at the solid boundary and stable density stratification beneath.
G. Kirillin, I. Aslamov, V. Kozlov, R. Zdorovennov, N. Granin   +4 more
doaj   +1 more source

Ice margin features in the Julianehåb District, South Greenland

Bulletin Grønlands Geologiske Undersøgelse, 1963
The present report deals with the extension of the ice margin deposits in the Julianehåb district, South Greenland. An attempt is made to establish a Holocene chronology for the ice margin deposits within the region on the basis of their association with raised marine shorelines, combined with a determination of fluctuations of the glaciation limits of
openaire   +2 more sources

Surface roughness signatures of summer arctic snow-covered sea ice in X-band dual-polarimetric SAR

GIScience & Remote Sensing, 2020
Surface roughness of sea ice is primary information for understanding sea ice dynamics and air–ice–ocean interactions. Synthetic aperture radar (SAR) is a powerful tool for investigating sea ice surface roughness owing to the high sensitivity of its ...
Hyangsun Han, Jae-In Kim, Chang-Uk Hyun, Seung Hee Kim, Jeong-Won Park, Young-Joo Kwon, Sungjae Lee, Sanggyun Lee, Hyun-Cheol Kim   +8 more
doaj   +1 more source

Super-Resolution-Aided Sea Ice Concentration Estimation From AMSR2 Images by Encoder–Decoder Networks With Atrous Convolution

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Passive microwave data is an important data source for the continuous monitoring of Arctic-wide sea ice concentration (SIC). However, its coarse spatial resolution leads to blurring effects at the ice-water divides, resulting in the great challenges of ...
Tiantian Feng, Xiaomin Liu, Rongxing Li
doaj   +1 more source