Results 91 to 100 of about 1,701 (232)

An Approximate Time‐Domain Solution for Recharge Propagation Through Thick Unsaturated Zones

open access: yesHydrological Processes, Volume 40, Issue 6, June 2026.
This study presents a time‐domain analytical solution for modelling groundwater recharge through thick unsaturated zones, applied to the Urucuia aquifer in Brazil. The model was calibrated using observed well data, capturing the attenuation of seasonal groundwater level fluctuations with depth.
Caio Leão   +2 more
wiley   +1 more source

Sea Ice Monitoring by Synthetic Aperture Radar

open access: yes, 2013
Satellite-borne synthetic aperture radar (SAR) data are highly valuable not only for observing the open ocean but also for monitoring seasonally or permanently ice-covered ocean regions in the Arctic, Antarctic, and other areas such as the Baltic Sea ...
Dierking, Wolfgang, Wolfgang Dierking
core   +1 more source

Karst Vadose Zone Hydrology Explored Through Cave Drip Water Dynamics: The Roles of Soil, Epikarst and Climate

open access: yesHydrological Processes, Volume 40, Issue 6, June 2026.
Cave drip rate monitoring in Nova Grgosova Cave reveals three types of drip sites: (1) predominantly constant, (2) seasonally varying and (3) mostly constant with occasional sharp increases. The observational data coupled with one‐dimensional water‐balance model demonstrates that evapotranspiration and soil–epikarst storage, rather than precipitation ...
P. Bajo   +6 more
wiley   +1 more source

Whale foraging seascapes: Advective prey aggregation mechanisms predict North Atlantic right whale foraging grounds

open access: yesLimnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract During foraging activity, baleen whales are generally dependent on the occurrence of dense prey patches. These are largely influenced by the interaction between ocean currents and the vertical distribution of individual prey. Identifying the spatio‐temporal dynamics of the areas where prey form dense aggregations, at submeso scale (~ 10 km ...
Andéol Bourgouin   +3 more
wiley   +1 more source

Ocean Radar System to Monitor Surface Currents in the Tsushima Straits

open access: yes, 2004
A radar observation system to monitor surface currents in the Tsushima Straits was constructed. The system consists of seven high frequency (HF) ocean radars remotely controlled from the central site set up at Research Institute for Applied Mechanics ...
奥野, 章   +9 more
core  

First Results of a New Inversion Tool for Thermospheric Neutral Mass Density Computations During Severe Geomagnetic Storms

open access: yesAGU Advances, Volume 7, Issue 3, June 2026.
Abstract In Low Earth Orbit (LEO), atmospheric drag is the dominant source of trajectory prediction error below approximately 700 km altitude, primarily due to inaccuracies in thermospheric density models. This work presents a method for temporally deconvolving Energy Dissipation Rates (EDRs) to produce single‐satellite density estimates, which can be ...
S. Mutschler   +6 more
wiley   +1 more source

The Surface Water and Ocean Topography Mission: A Breakthrough in Radar Remote Sensing of the Ocean and Land Surface Water

open access: yesGeophysical Research Letters
The elevations of water surfaces hold important information on the earth's oceans and land surface waters. Ocean sea surface height is related to the internal change of the ocean's density and mass associated with ocean circulation and its response to ...
Lee‐Lueng Fu   +10 more
doaj   +1 more source

Seasonal Ice Dynamics Control the Timing of Crevasse Drainage at a Fast‐Flowing Outlet Glacier

open access: yesAGU Advances, Volume 7, Issue 3, June 2026.
Abstract Crevasse field drainage transfers at least half of the seasonal runoff from the surface to the bed of the Greenland Ice Sheet, but the patterns of drainage are complex and spatio‐temporally heterogenous. To better understand controls on crevasse drainage processes, we use an automated deep learning method to map the seasonal filling and ...
T. R. Chudley   +7 more
wiley   +1 more source

HF radar data assimilation in the Monterey Bay area [PDF]

open access: yes, 2004
The article of record as published may be found at https://doi.org/10.1029/2003JC001949The utility of high‐frequency (HF) radar data for improving numerical circulation model predictions is evaluated.
Shulman, Igor, Paduan, Jeffrey D.
core  

The Australian coastal ocean radar network facility [PDF]

open access: yes, 2009
The Australian Coastal Ocean radar Network (ACORN) is a monitoring network of HF radars which are being installed around Australia under a National Collaborative Research Infrastructure Strategy (NCRIS).
Heron, M.L., M.L. Heron
core   +1 more source

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