Results 41 to 50 of about 2,974 (193)
Detecting an Ocean Inside Callisto With Geodetic Measurements From Europa Clipper and Juice
Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.Abstract Determining whether Callisto hosts a subsurface ocean, and the implications for material and energy transport through its hydrosphere, is of high interest to NASA's Europa Clipper and ESA's Juice missions. A recent reanalysis of Galileo magnetometer data strengthens the ocean hypothesis, but definitive confirmation awaits new measurements.
Flavio Petricca +2 more
wiley +1 more source
, 2015 Presentation given at the Satellite Oceanography Users Workshop, Melbourne, Australia, 9 - 11 Nov 2015.
openaire +2 more sources
Large (∼80 km) Shield Volcanoes on the Moon Possibly Fed by Shallow Magma Reservoirs
Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.Abstract Large shield volcanoes are among the most prominent volcanic structures on terrestrial bodies. The Moon, while volcanically very active in the past and hosting various volcanic features, seems to lack such large shield volcanoes. Here, we report the identification of two lunar volcanic domes (Prinz‐Harbinger and Theophilus) with diameters ...
Le Qiao +9 more
wiley +1 more source
On the determination of the deflection of the vertical by satellite altimetry
Marine Geodesy, 1984 Abstract With the advent of satellite altimetry it has become possible to estimate the height of the marine geoid above the ellipsoid to an accuracy of better than 1 m. At a crossover of a satellite's ascending and descending tracks, altimeter data can be used to obtain two linearly independent estimates of the geoid's horizontal gradient.
Watts, A, Horai, K, Ribe, N
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Satellite Mapping of the Moulin Distribution Across the Entire Greenland Ice Sheet
Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.Abstract Moulins drain meltwater from the surface of the Greenland Ice Sheet (GrIS), affecting subglacial hydrology. However, the moulin distribution across the entire GrIS remains unclear. Using 10‐m Sentinel‐2 imagery from the summer of 2019, we manually mapped GrIS‐wide major moulins, excluding undetectable minor moulins.
Yuhan Wang +5 more
wiley +1 more source
First Assessment of ICESat‐2 Summer Sea Ice Freeboard With Airborne Validation
Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.Abstract ICESat‐2 has demonstrated solid performance in retrieving sea ice freeboard during winter, when sea ice surface types are well‐defined and leads provide reliable sea surface height references. Summer retrievals are challenging because melt ponds are not explicitly distinguished in the ATL07 surface classification and may be identified as ice ...
Ellen M. Buckley +6 more
wiley +1 more source
Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.Abstract In the transition zones between eastern boundary upwelling regions and subtropical gyres, upwelling and offshore moving filaments generated by frontal instabilities play an important role in the gyre‐ward transport of new nutrients and phytoplankton biomass. However, quantification of such transport using field data remains sparse.
Angèle Nicolas +7 more
wiley +1 more source
Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.Abstract Lateral erosion of salt marshes via cliff retreat is a primary cause of global marsh loss, driven by interactions between hydrodynamics, sediment, and vegetation. While previous studies show a linear relationship between wave power and cliff retreat, models based on this relationship are largely unvalidated for short‐term (sub‐yearly) and ...
S. Dzimballa +7 more
wiley +1 more source
The accuracy and applications of satellite altimetry [PDF]
Geophysical Journal International, 1995 Summary The recently launched TOPEX/POSEIDON altimeter mission is achieving an unprecedented accuracy in the measurement of the absolute sea-level, demonstrating that satellite radar altimetry has evolved into one of the fundamental instruments for providing synoptic observations of the global oceans with a temporal sampling of a few days to a month ...
C. K. Shum, J. C. Ries, B. D. Tapley
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Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.Abstract Despite significant advances in observational systems such as the global Argo array of autonomous profiling floats, the spatiotemporal coverage of subsurface ocean observations remains limited compared to the dense data provided by satellite platforms. This study develops a data‐driven framework to reconstruct synthetic profiles of upper ocean
Guangpeng Liu, Brian Powell
wiley +1 more source