Results 41 to 50 of about 522 (131)

Evaluation of Sea Ice Concentration Data Using Dual-Polarized Ratio Algorithm in Comparison With Other Satellite Passive Microwave Sea Ice Concentration Data Sets and Ship-Based Visual Observations

Frontiers in Environmental Science, 2022
The dual-polarized ratio (DPR) algorithm is a new algorithm that enable calculation of Arctic sea ice concentration from the 36.5-GHz channel of the sensor Advanced Microwave Scanning Radiometer for EOS/Advanced Microwave Scanning Radiometer 2 (AMSR-E ...
Fangyi Zong, Shugang Zhang, Ping Chen, Lipeng Yang, Qiuli Shao, Jinping Zhao, Lai Wei   +6 more
doaj   +1 more source

Opportunistic feeding by Antarctic krill in the eastern Weddell Gyre

Limnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Antarctic krill, Euphausia superba, is an important species in the Southern Ocean and is vulnerable to climate change. We studied the carbon sources for krill—specifically pelagic and ice‐associated (sympagic) particulate organic matter (POM), representing phytoplankton and sea‐ice algae, respectively—during March 2019 across three distinct ...
Sebastien Moreau, Hanna M. Kauko, Tone Falkenhaug, Megan Lenss, Anette Wold, Hauke Flores, Katrin Schmidt, Doreen Kohlbach, Philippe Claeys, Magdalena Różańska‐Pluta, Jozef Wiktor   +10 more
wiley   +1 more source

National Oceanic and Atmospheric Administration Soil Moisture Operational Product System: An overview and data assimilation applications

Vadose Zone Journal, Volume 25, Issue 4, July/August 2026.
Abstract National Oceanic and Atmospheric Administration–National Environmental Satellite, Data, and Information Service (NESDIS) developed the Soil Moisture Operational Product System (SMOPS) to serve as a one‐stop shop for all available microwave satellite soil moisture observations.
Jifu Yin, Xiwu Zhan, Jicheng Liu, Jong Kim, Chan‐Hoo Jeon, Gillian Petro   +5 more
wiley   +1 more source

Assessment of AMSR2 Ice Extent and Ice Edge in the Arctic Using IMS

Remote Sensing, 2020
This work assesses the AMSR2 (the Advanced Microwave Scanning Radiometer 2) ice extent and ice edge in the Arctic using the ice extent products of NOAA’s Interactive Multisensor Snow and Ice Mapping System (IMS) from the period of July 2015 to July 2019.
Yinghui Liu, Sean Helfrich, Walter N. Meier, Richard Dworak   +3 more
doaj   +1 more source

The Evidence for Linearly Scaling Ocean Gas Exchange With Sea Ice Needs Strengthening

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.
Abstract Polar oceans are critical components of the oceanic uptake of atmospheric carbon dioxide. Estimates of this uptake across the air‐sea interface require parameterizations of gas transfer velocity that account for variable sea ice concentrations.
Jennifer Watts, Thomas G. Bell, Karen Anderson, John Prytherch, Brian J. Butterworth, Brent Else, Scott Miller, Thomas Holding, Jamie D. Shutler   +8 more
wiley   +1 more source

Effects of Wintertime Snow Depth Assimilation on Summertime Sea Ice Prediction Experiments Utilizing a Fully Coupled Regional Arctic Model With Perfect Boundary Conditions

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 7, July 2026.
Abstract During the past decades, the rapid decline of sea ice in the Arctic Ocean has substantially favored commercial navigation activities in the summertime. Numerical sea ice prediction on a seasonal scale plays a crucial role in guiding the programme of such activities, yet the role of snow depth data assimilation in numerical sea ice prediction ...
Xi Liang, Chengyan Liu, Xichen Li, Zhongxiang Tian, Zhuoming Ding, Fu Zhao, Ming Li, Na Liu, Jiaying Huang   +8 more
wiley   +1 more source

Estimation of Snow Depth from AMSR2 and MODIS Data based on Deep Residual Learning Network

Remote Sensing, 2022
Advanced Microwave Scanning Radiometer 2 (AMSR2) brightness temperature (TB) observations have long been utilized for snow depth (SD) estimation. However, the traditional approaches which are based on ‘point-to-point’ predictions ignore the spatial ...
De Xing, Jinliang Hou, Chunlin Huang, Weimin Zhang   +3 more
doaj   +1 more source

Dynamic Decomposition of Sub‐Daily Antarctic Sea‐Ice Concentration Change Using Passive Microwave Swath Observations

Earth and Space Science, Volume 13, Issue 6, June 2026.
Abstract Spaceborne radiometers have enabled global sea‐ice distribution observations since 1978, yet design choices associated with conventional daily averaged remote sensing products mean they do not resolve higher‐frequency variability that characterizes Antarctic sea ice.
W. de Jager, C. Melsheimer, G. Spreen, M. Vichi   +3 more
wiley   +1 more source

Improving Inter‐Satellite Tropical Cyclone Precipitation Consistency by Deep Learning

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The Global Precipitation Measurement mission satellite constellation comprises multiple satellites that produce widely used global tropical cyclone precipitation estimates. The quality of precipitation estimates among these satellites varies significantly due to differences in mission purpose, channel availability, and spatial resolution ...
Yalei You, Jihoon Ryu, Scott Braun, Cheng Da, George Huffman, Margo Huff, Keaton Kirkland, William Blackwell, Yayu Ma   +8 more
wiley   +1 more source

Toward Higher Resolution Arctic Winter Sea Ice Concentration: Addressing Sentinel-1 Misclassification With AMSR2 Data Fusion

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Accurate and high-resolution sea ice concentration (SIC) products are needed for operational forecasting and climate monitoring. Passive microwave sensors, such as the advanced microwave scanning Radiometer 2 (AMSR2), provide daily SIC observations at 5 ...
Jozef Rusin, Anthony P. Doulgeris, Thomas Lavergne, K. Andrea Scott, Frode Dinessen   +4 more
doaj   +1 more source