Results 31 to 40 of about 573,851 (275)
Glacier algae phenology on the Qaanaaq Ice Cap (Northwest Greenland)
Journal of GlaciologyGlacier algae are relevant factors in the darkening phenomenon of glaciers, especially at the margins of the ice sheets. This study focuses on glacier algae variation during summer seasons in the 2016–2023 period at Qaanaaq Ice Cap, NW Greenland.
Giacomo Traversa +6 more
semanticscholar +2 more sources
Remote Sensing, 2016 Thermokarst lakes and ponds are major elements of permafrost landscapes, occupying up to 40% of the land area in some Arctic regions. Shallow lakes freeze to the bed, thus preventing permafrost thaw underneath them and limiting the length of the period ...
Sofia Antonova +6 more
doaj +3 more sources
Phenological Changes and Driving Forces of Lake Ice in Central Asia from 2002 to 2020
Remote Sensing, 2022 Lake ice phenology is an indicator of past and present climate, it is sensitive to regional and global climate change. In the past few decades, the climate of Central Asia has changed significantly due to global warming and anthropogenic activities ...
Guanyu Hou +9 more
doaj +1 more source
Remote Sensing, 2021 Ice phenology data of 22 large lakes of the Northern Hemisphere for 40 years (1979–2018) have been retrieved from passive microwave remote sensing brightness temperature (Tb). The results were compared with site-observation data and visual interpretation
Lei Su, Tao Che, Liyun Dai
doaj +1 more source
Geographic variation and temporal trends in ice phenology in Norwegian lakes during the period 1890–2020 [PDF]
The Cryosphere, 2021 Long-term observations of ice phenology in lakes are ideal for studying climatic variation in time and space. We used a large set of observations from 1890 to 2020 of the timing of freeze-up and break-up, and the length of ice-free season, for 101 ...
J. H. L'Abée-Lund +5 more
doaj +1 more source
River ice phenology and thickness from satellite altimetry. Potential for ice bridge road operation [PDF]
The Cryosphere, 2020 Abstract. River ice is an important component of land cryosphere. Satellite monitoring of river ice is rapidly developing scientific area with an important outcome for many climate, environmental and socio-economic applications. Radar altimetry, now widely used for monitoring of river water regime, demonstrates a good potential for observation of river
Elena Zakharova +4 more
openaire +5 more sources
Sea-ice algal phenology in a warmer Arctic [PDF]
Science Advances, 2019 <p>The Arctic sea-ice decline is among the most emblematic manifestations of climate change and is occurring before we understand its ecological consequences. We investigated future changes in algal productivity combining a biogeochemical model for sympagic algae with sea-ice drivers from an ensemble of 18 CMIP5 climate models ...
Vichi, M. +3 more
openaire +3 more sources
Long-term ice phenology records from East Central Europe [PDF]
Earth System Science Data, 2017 Abstract. A data set of annual freshwater ice phenology was compiled for the largest river (Danube) and the largest lake (Lake Balaton) in East Central Europe, extending regular river and lake ice monitoring data through the use of historical observations and documentary records dating back to 1774 AD and 1885 AD, respectively.
Katalin Takács +2 more
openaire +4 more sources
Satellite microwave assessment of Northern Hemisphere lake ice phenology from 2002 to 2015 [PDF]
The Cryosphere, 2017 A new automated method enabling consistent satellite assessment of seasonal lake ice phenology at 5 km resolution was developed for all lake pixels (water coverage ≥ 90 %) in the Northern Hemisphere using 36.5 GHz H-polarized brightness temperature (Tb)
J. Du +4 more
doaj +1 more source
An automated method to monitor lake ice phenology [PDF]
Limnology and Oceanography: Methods, 2011 A simple method to automatically measure the date of ice‐on, the date of ice‐off, and the duration of lake ice cover is described. The presence of ice cover is detected by recording water temperature just below the ice/water interface and just above the lake bottom using moored temperature sensors.
Pierson, D. C. +10 more
openaire +1 more source