Results 81 to 90 of about 4,375 (213)

Intradecadal Climate Stanzas for the Northwestern Pacific Ocean and Remote Influence on the Bering Sea

open access: yesInternational Journal of Climatology, Volume 45, Issue 14, 30 November 2025.
A recent event in the Bering Sea during 2017–2020 saw localised anomalies of increased storminess and record minimums of wintertime sea ice that influenced a major ecosystem reorganisation. We propose a teleconnection between northern North Pacific positive sea surface temperatures (SST) and Bering Sea conditions, mediated by the position of the ...
James E. Overland, Thomas J. Ballinger
wiley   +1 more source

Detailed Monitoring of the Antarctic Marginal Ice Zone by Satellite Radar Altimeter Synergy—A Study of the Weddell Sea/Indian Ocean Sector in July 2017

open access: yesGeophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract The wave‐affected Marginal Ice Zones (MIZ) is a key region of air‐ice‐ocean interactions in the Southern Ocean (SO). However, challenges still remain for the large‐scale observation of the MIZ. In this study, we use four concurrent radar altimeters to retrieve the wave‐affected MIZ in the eastern Weddell Sea‐Indian Ocean sector, which was ...
Shiming Xu   +7 more
wiley   +1 more source

Bayesian Estimation of Smooth Altimetric Parameters: Application to Conventional and Delay/Doppler Altimetry [PDF]

open access: yes, 2015
International audienceThis paper proposes a new Bayesian strategy for the smooth estimation of altimetric parameters. The altimetric signal is assumed to be corrupted by a thermal and speckle noise distributed according to an independent and non ...
Halimi, Abderrahim   +3 more
core   +4 more sources

Modulation of Eddy Kinetic Energy by Seasonal Extension of the Eastern Weddell Gyre

open access: yesGeophysical Research Letters, Volume 52, Issue 21, 16 November 2025.
Abstract Active eddies in the eastern Weddell Gyre (WG) facilitate water mass exchange between the WG and warmer Antarctic Circumpolar Current, driving warm inflow into the WG. Using observations and data‐assimilating model output, the impact of seasonal extension of the eastern WG on the local eddy kinetic energy (EKE) field was investigated.
Shikai Yang, Dujuan Kang, Meng Zhou
wiley   +1 more source

Surface Water and Ocean Topography (SWOT) Observations Unveil Small Mesoscale Variability on the East Greenland Shelf

open access: yesGeophysical Research Letters, Volume 52, Issue 21, 16 November 2025.
Abstract In the Arctic, mesoscale ocean processes occur at much smaller scales (5–60 km) than at mid‐latitudes (50–100 km), and conventional altimetry thus only resolves the largest of these signals. Here we show how high‐resolution measurements from the Surface Water and Ocean Topography (SWOT) satellite can be used in conjunction with conventional ...
S. N. Jensen   +4 more
wiley   +1 more source

EUMETSAT Invitation To Tender 14/209556: JASON-CS SAR Mode Sea State Bias Study. Final report [PDF]

open access: yes, 2016
This document represents the final report of a study funded by EUMETSAT about SAR mode Sea State Bias (SSB) for the Sentinel-6/Jason-CS mission. The study comprises a critical review of SSB estimation methods in conventional (low-resolution mode or LRM ...
Bellingham, Clare   +4 more
core  

Slope Correction for Ocean SAR Altimetry

open access: yesEarth and Space Science, Volume 12, Issue 11, November 2025.
Abstract Since the 2010 launch of Cryosat‐2, a new generation of altimeters, referred to as SAR altimetry, has emerged and partially replaced the previous conventional altimeters known as Low Resolution Mode (LRM) altimetry. A surface slope correction has been previously developed for LRM altimetry.
Juliette Gamot   +5 more
wiley   +1 more source

Arctic Freeboard and Snow Depth From Near‐Coincident CryoSat‐2 and ICESat‐2 (CRYO2ICE) Observations: A First Examination of Winter Sea Ice During 2020–2022

open access: yesEarth and Space Science
In the summer of 2020, ESA changed the orbit of CryoSat‐2 to align periodically with NASA's ICESat‐2 mission, a campaign known as CRYO2ICE, which allows for near‐coincident CryoSat‐2 and ICESat‐2 observations in space and time over the Arctic until ...
Renée M. Fredensborg Hansen   +6 more
doaj   +1 more source

Extension of the Molniya orbit using low-thrust propulsion [PDF]

open access: yes, 2011
Extension of the standard Molniya orbit using low-thrust propulsion is presented. These newly proposed, highly elliptical orbits are enabled by existing low-thrust propulsion technology, enabling new Earth Observation science and offering a new set of ...
Anderson, Pamela, Macdonald, Malcolm
core  

A Novel Method for Reservoir Outflow Simulation Based on Spearman Rank Correlation Between Satellite‐Derived Water Elevations and Model‐Simulated Reservoir Storage

open access: yesWater Resources Research, Volume 61, Issue 11, November 2025.
Abstract Accurate simulation of reservoir outflow is essential for integrated water resource management. However, the limited availability of operational data for reservoirs often hinder the accuracy of outflow simulations. Satellite remote sensing, combined with water balance approaches, provides an effective solution for calculating outflows. However,
Yunye Feng   +6 more
wiley   +1 more source

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