Results 51 to 60 of about 19,680 (291)

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)

Remote 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, Peter J. Minnett, Eduardo T. Paes, Fernando P. de Miranda, Luiz Landau   +4 more
doaj   +1 more source

Mapping the Spatial Scales of Australian Extreme Precipitation Using Daily Rain Gauges

International Journal of Climatology, EarlyView.
We present the first continent‐wide analysis of the spatial scales of daily extreme precipitation events (EPEs) in Australia using station observations and semivariogram analysis. EPEs generally have larger spatial scales at higher latitudes, with strong seasonal and regional differences shaped by topography, meteorological regimes, and climate ...
Dongqi Lin, Kate R. Saunders, Martin S. Singh   +2 more
wiley   +1 more source

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

Journal 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, Vanesa Magar, Manuel López-Mariscal, Jonas D. De Basabe   +3 more
doaj   +1 more source

Heat and Cold Waves in Brazil: An ERA5‐Based Analysis of Trends and Seasonality (1980–2024)

International Journal of Climatology, EarlyView.
This study uses ERA5 reanalysis data to assess changes in extreme heat and cold events across Brazil from 1980 to 2024. Results reveal a sharp increase in heatwave frequency and a general decline in coldwave occurrences, though regional variations are substantial.
Alindomar Lacerda Silva, Scott Sheridan
wiley   +1 more source

Seasonal Variability of Precipitating Systems in Four Radar Domains of Northeast Brazil

International Journal of Climatology, EarlyView.
This study analyzes the climatology and evaluates how the physical aspects of precipitating systems are influenced by the dry and wet seasons in Northeast Brazil, highlighting seasonal variations in the frequency, size, intensity, and duration of these systems in the regions of Natal, Maceió, Petrolina, and Salvador.
Amanda Carolina da Silva Queiroz, Thiago Souza Biscaro   +1 more
wiley   +1 more source

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

Geophysical 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

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

Sensors, 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, Thomas C. Weber, Andreas Austeng   +2 more
doaj   +1 more source

The physical oceanography of the transport of floating marine debris

Environmental 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, Stefano Aliani, Kara Lavender Law, Nikolai Maximenko, José M Alsina, Andrei Bagaev, Melanie Bergmann, Bertrand Chapron, Irina Chubarenko, Andrés Cózar, Philippe Delandmeter, Matthias Egger, Baylor Fox-Kemper, Shungudzemwoyo P Garaba, Lonneke Goddijn-Murphy, Britta Denise Hardesty, Matthew J Hoffman, Atsuhiko Isobe, Cleo E Jongedijk, Mikael L A Kaandorp, Liliya Khatmullina, Albert A Koelmans, Tobias Kukulka, Charlotte Laufkötter, Laurent Lebreton, Delphine Lobelle, Christophe Maes, Victor Martinez-Vicente, Miguel Angel Morales Maqueda, Marie Poulain-Zarcos, Ernesto Rodríguez, Peter G Ryan, Alan L Shanks, Won Joon Shim, Giuseppe Suaria, Martin Thiel, Ton S van den Bremer, David Wichmann   +37 more
doaj   +1 more source

Diurnal Air–Surface Temperature Dynamics in Hong Kong: An Analysis Across Land Use and Climate Zones

International Journal of Climatology, EarlyView.
Daytime and nighttime air temperature (Ta) from automatic weather stations and land surface temperature (Ts) derived from ASTER and Landsat 8–9 are used to examine the relationship between Ta and Ts. The spatial and statistical characteristics of Ta − Ts dynamics are further analysed across land use (LU) and local climate zones (LCZ).
Ibrahim Ademola Adeniran, Majid Nazeer, Man Sing Wong, Jinxin Yang, Pak‐Wai Chan   +4 more
wiley   +1 more source

A long-term, gridded, subsurface physical oceanography dataset and average annual cycles derived from in situ measurements off the Western Australia coast during 2009-2020. [PDF]

Data Brief, 2021
Chen M, Feng M.
europepmc   +1 more source