Results 21 to 30 of about 11,023 (187)

A 41-year (1979–2019) passive-microwave-derived lake ice phenology data record of the Northern Hemisphere [PDF]

open access: yesEarth System Science Data, 2022
Seasonal ice cover is one of the important attributes of lakes in middle- and high-latitude regions. The annual freeze-up and breakup dates as well as the duration of ice cover (i.e., lake ice phenology) are sensitive to the weather and climate; hence ...
Y. Cai   +3 more
doaj   +1 more source

Phenological Changes and Driving Forces of Lake Ice in Central Asia from 2002 to 2020

open access: yesRemote 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

Variation in Ice Phenology of Large Lakes over the Northern Hemisphere Based on Passive Microwave Remote Sensing Data

open access: yesRemote 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

An automated method to monitor lake ice phenology [PDF]

open access: yesLimnology 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

Remote Sensing of Lake Ice Phenology across a Range of Lakes Sizes, ME, USA [PDF]

open access: yesRemote Sensing, 2019
Remote sensing of ice phenology for small lakes is hindered by a lack of satellite observations with both high temporal and spatial resolutions. By merging multi-source satellite data over individual lakes, we present a new algorithm that successfully estimates ice freeze and thaw timing for lakes with surface areas as small as 0.13 km2 and obtains ...
Shuai Zhang, Tamlin M. Pavelsky
openaire   +4 more sources

Arctic-Boreal Lake Phenology Shows a Relationship between Earlier Lake Ice-Out and Later Green-Up [PDF]

open access: yesRemote Sensing, 2021
Satellite remote sensing has transformed our understanding of Earth processes. One component of the Earth system where large uncertainties remain are Arctic and boreal freshwater lakes. With only short periods of open water due to annual ice cover, lake productivity in these regions is extremely sensitive to warming induced changes in ice cover. At the
Catherine Kuhn   +4 more
openaire   +3 more sources

Lake Ice Phenology Extraction using Machine Learning Methodology

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract Lake-ice phenology is one of the key cryosphere indicators. Based on changes in time series of daily lake ice coverage and the microwave brightness temperature, two machine-learning methods were selected for estimating the phenology of lake ice.
Pengfei Xie   +4 more
openaire   +1 more source

Fine-Resolution Mapping of Pan-Arctic Lake Ice-Off Phenology Based on Dense Sentinel-2 Time Series Data

open access: yesRemote Sensing, 2021
The timing of lake ice-off regulates biotic and abiotic processes in Arctic ecosystems. Due to the coarse spatial and temporal resolution of available satellite data, previous studies mainly focused on lake-scale investigations of melting/freezing ...
Chong Liu   +4 more
doaj   +1 more source

A lake ice phenology dataset for the Northern Hemisphere based on passive microwave remote sensing

open access: yesBig Earth Data, 2022
Lake ice phenology (LIP) is an essential indicator of climate change and helps with understanding of the regional characteristics of climate change impacts.
Xingxing Wang   +6 more
doaj   +1 more source

Continuous Loss of Global Lake Ice Across Two Centuries Revealed by Satellite Observations and Numerical Modeling

open access: yesGeophysical Research Letters, 2022
Lake ice loss has been detected worldwide due to recent climate warming, yet spatially and temporally detailed information on the changes in global ice phenology does not exist.
Xinchi Wang   +10 more
doaj   +1 more source

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