Results 51 to 60 of about 19,264 (293)

Understanding the Interdecadal Changes in the Teleconnection Pattern of the East Asian Summer Monsoon Precipitation With Concurrent ENSO

open access: yesGeophysical Research Letters
Interdecadal changes in the relationship between East Asian Summer Monsoon Precipitation (EASMP) and the concurrent El Niño‐Southern Oscillation (ENSO) vary across subregions, making it challenging to holistically understand these variations and the ...
Lei Fan, Qi Yang, Hui‐Huang Fu
doaj   +1 more source

Evaluation of Tidal Asymmetry and Its Effect on Tidal Energy Resources in the Great Island Region of the Gulf of California

open access: yesJournal of Marine Science and Engineering
Hydrokinetic tidal energy is one of the few marine renewable energy resources with sufficiently mature technology for commercial exploitation. However, several parameters affect its exploitability, such as the minimum speed threshold, ambient turbulence ...
Anahí Bermúdez-Romero   +3 more
doaj   +1 more source

Autonomous, high‐frequency and long‐term monitoring of substrate temperature in rocky intertidal zones

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Intertidal zones are characterized by complex and dynamic thermal mosaics, where organisms experience extreme temperature variations influenced by microclimatic factors. However, accurately monitoring rocky shore temperatures over the long term remains challenging due to the limitations of conventional temperature loggers.
Luís Pereira   +4 more
wiley   +1 more source

Oil-Slick Category Discrimination (Seeps vs. Spills): A Linear Discriminant Analysis Using RADARSAT-2 Backscatter Coefficients (σ°, β°, and γ°) in Campeche Bay (Gulf of Mexico)

open access: yesRemote Sensing, 2019
A novel empirical approach to categorize oil slicks’ sea surface expressions in synthetic aperture radar (SAR) measurements into oil seeps or oil spills is investigated, contributing both to academic remote sensing research and to practical ...
Gustavo de Araújo Carvalho   +4 more
doaj   +1 more source

The physical oceanography of the transport of floating marine debris

open access: yesEnvironmental Research Letters, 2020
Marine plastic debris floating on the ocean surface is a major environmental problem. However, its distribution in the ocean is poorly mapped, and most of the plastic waste estimated to have entered the ocean from land is unaccounted for.
Erik van Sebille   +37 more
doaj   +1 more source

Lessons learned from mesocosm experiments with curcumin: Pilot studies of a harmful algal bloom mitigation technique

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Curcumin, a natural plant product derived from Curcuma longa, was assessed as a mitigation technique against the toxic bloom‐forming dinoflagellate Karenia brevis in two mesocosm experiments taking place in 2022 and 2024. In these experiments, curcumin was applied at a dosage of 5 mg L−1 to K.
Victoria Devillier   +6 more
wiley   +1 more source

Investigation of the loss of sound signals in the presence of Eddy in a hypothetical area

open access: yesنشریه مهندسی دریا, 2021
Marine phenomena that disturb the stratification cause oscillations in the acoustic signals. Among them, Eddies can be effective factors in mixing the ocean and create significant disturbances in the sound field.
Seyed Hossein Hassantabar Bozroudi   +2 more
doaj  

Improved Visualization of Hydroacoustic Plumes Using the Split-Beam Aperture Coherence

open access: yesSensors, 2018
Natural seepage of methane into the oceans is considerable, and plays a role in the global carbon cycle. Estimating the amount of this greenhouse gas entering the water column is important in order to understand their environmental impact.
Ann E. A. Blomberg   +2 more
doaj   +1 more source

A semi‐analytical Bayesian estimate retrieval algorithm for the inversion of remote‐sensing reflectance in optically deep and shallow waters

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract The inverse problem in remote sensing of aquatic environment consists in retrieving optically significant constituents (OSCs) from a spectral measurement of the remote sensing reflectance (Rrs$$ {R}_{\mathrm{rs}} $$).Optically significant constituent includes chlorophyll a concentration (Chl a$$ Chl\ a $$), a proxy of phytoplankton biomass ...
Soham Mukherjee   +2 more
wiley   +1 more source

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