Results 31 to 40 of about 15,283,247 (324)

Absolute Calibration of the European Sentinel-3A Surface Topography Mission over the Permanent Facility for Altimetry Calibration in west Crete, Greece

Remote Sensing, 2018
This work presents calibration results for the altimeter of Sentinel-3A Surface Topography Mission as determined at the Permanent Facility for Altimetry Calibration in west Crete, Greece. The facility has been providing calibration services for more than
Stelios Mertikas, Craig Donlon, Pierre Féménias, Constantin Mavrocordatos, Demitris Galanakis, Achilles Tripolitsiotis, Xenophon Frantzis, Costas Kokolakis, Ilias N. Tziavos, George Vergos, Thierry Guinle   +10 more
doaj   +1 more source

Satellite Survey of Offshore Oil Seep Sites in the Caspian Sea

Remote Sensing, 2022
This paper presents the results of a long-term survey of the Caspian Sea using satellite SAR and multispectral sensors. The primary environmental problem of the Caspian Sea is oil pollution which is determined by its natural properties, mainly by the ...
Marina Mityagina, Olga Lavrova
doaj   +1 more source

Investigation of EM Backscattering from Slick-Free and Slick-Covered Sea Surfaces Using the SSA-2 and SAR Images

Remote Sensing, 2018
This paper is devoted to investigating the electromagnetic (EM) backscattering from slick-free and slick-covered sea surfaces at various bands (L-band, C-band, X-band, and Ku-band) by using the second-order small slope approximation (SSA-2) and the ...
Honglei Zheng, Yanmin Zhang, Ali Khenchaf, Yunhua Wang, Helmi Ghanmi, Chaofang Zhao   +5 more
doaj   +1 more source

Sea Surfaces Scattering by Multi-Order Small-Slope Approximation: a Monte-Carlo and Analytical Comparison [PDF]

AUT Journal of Electrical Engineering, 2019
L-band electromagnetic scattering from two-dimensional random rough sea surfaces are calculated by first- and second-order Small-Slope Approximation (SSA1, 2) methods.
Nafiseh Radkani, Bijan Zakeri
doaj   +1 more source

Parameterizing the Sea Surface Roughness

Journal of Physical Oceanography, 2005
Abstract The concept of an “equivalent surface roughness” over the ocean is useful in understanding the relation between wind speed (at some height) and the net momentum flux from air to sea. The relative performance of different physics-motivated scalings for this roughness can provide valuable guidance as to which mechanisms are ...
Drennan, William M., Taylor, Peter K., Yelland, Margaret J.   +2 more
openaire   +3 more sources

Half a century of satellite remote sensing of sea-surface temperature

Remote Sensing of Environment, 2019
Sea-surface temperature (SST) was one of the first ocean variables to be studied from earth observation satellites. Pioneering images from infrared scanning radiometers revealed the complexity of the surface temperature fields, but these were derived ...
P. J. Minnett, A. Alvera-Azcárate, T. Chin, G. Corlett, C. Gentemann, I. Karagali, X. Li, A. Marsouin, S. Marullo, E. Maturi, R. Santoleri, S. S. Picart, M. Steele, J. Vazquez-Cuervo   +13 more
semanticscholar   +1 more source

Observational Needs of Sea Surface Temperature

Frontiers in Marine Science, 2019
Sea surface temperature (SST) is a fundamental physical variable for understanding, quantifying and predicting complex interactions between the ocean and the atmosphere.
A. O'Carroll, E. Armstrong, H. Beggs, Marouan Bouali, K. Casey, G. Corlett, P. Dash, C. Donlon, C. Gentemann, J. Høyer, A. Ignatov, Kamila Kabobah, M. Kachi, Yukio Kurihara, Ioanna Karagali, E. Maturi, C. Merchant, S. Marullo, P. Minnett, M. Pennybacker, B. Ramakrishnan, R. Ramsankaran, R. Santoleri, Swathy Sunder, S. Saux-Picart, J. Vazquez-Cuervo, Werenfrid Wimmer   +26 more
semanticscholar   +1 more source

Plastics in sea surface waters around the Antarctic Peninsula

Scientific Reports, 2019
Although marine plastic pollution has been the focus of several studies, there are still many gaps in our understanding of the concentrations, characteristics and impacts of plastics in the oceans.
A. L. Lacerda, Lucas dos S. Rodrigues, E. van Sebille, F. Rodrigues, Lourenço Ribeiro, E. Secchi, F. Kessler, M. Proietti   +7 more
semanticscholar   +1 more source

Influence of environmental variability on the distribution and abundance of the pantropical spotted dolphin (Stenella attenuata) in the Mexican Central Pacific

Ciencias Marinas, 2022
The Mexican Central Pacific (MCP) has complex oceanographic dynamics, with a well-defined seasonal pattern and influence of interannual sea surface temperature anomalies. The present study investigated the relationship between the distribution/abundance
Evelyn R Díaz-Torres, Emigdio Marín-Enríquez, Antonio Corgos, Aramis Olivos-Ortiz, Christian D Ortega-Ortiz   +4 more
doaj   +1 more source

Machine learning reveals that sodium concentration and temperature influence alkenone occurrence in Swiss and worldwide freshwater lakes

Frontiers in Earth Science
Lacustrine alkenones are increasingly reported in freshwater lakes worldwide, which makes them a very promising proxy to reconstruct past continental temperatures.
Céline Martin, Nora Richter, Ronald Lloren, Linda Amaral-Zettler, Linda Amaral-Zettler, Nathalie Dubois   +5 more
doaj   +1 more source