Results 21 to 30 of about 36,013 (265)

MODIS Sea Ice Thickness and Open Water–Sea Ice Charts over the Barents and Kara Seas for Development and Validation of Sea Ice Products from Microwave Sensor Data

Remote Sensing, 2017
We have developed algorithms and procedures for calculating daily sea ice thickness (SIT) and open water–sea ice (OWSI) charts, based on the Moderate Resolution Imaging Spectroradiometer (MODIS), ice surface temperature (IST) (night-time only), and ...
Marko Mäkynen, Juha Karvonen
doaj   +1 more source

Assessing the impact of future altimeter constellations in the Met Office global ocean forecasting system [PDF]

Ocean Science
Satellite altimeter measurements of sea surface height (SSH) are a crucial component of current operational ocean forecasting systems. The launch of the Surface Water and Ocean Topography (SWOT) wide-swath altimeter (WiSA) mission is bringing a step ...
R. R. King, M. J. Martin, L. Gaultier, J. Waters, C. Ubelmann, C. Donlon   +5 more
doaj   +1 more source

Measuring Winds and Currents with Ka-Band Doppler Scatterometry: An Airborne Implementation and Progress towards a Spaceborne Mission

Remote Sensing, 2020
Ocean surface winds and currents are tightly coupled, essential climate variables, synoptic measurements of which require a remote sensing approach.
Alexander Wineteer, Dragana Perkovic-Martin, Raquel Monje, Ernesto Rodríguez, Tamás Gál, Noppasin Niamsuwan, Fabien Nicaise, Karthik Srinivasan, Chad Baldi, Ninoslav Majurec, Bryan Stiles   +10 more
doaj   +1 more source

Quantifying Multifrequency Ocean Altimeter Wind Speed Error Due to Sea Surface Temperature and Resulting Impacts on Satellite Sea Level Measurements

Remote Sensing, 2023
Surface wind speed measurements from a satellite radar altimeter are used to adjust altimeter sea level measurements via sea state bias range correction.
Ngan Tran, Douglas Vandemark, François Bignalet-Cazalet, Gérald Dibarboure   +3 more
doaj   +1 more source

On-Line Sea Beam Acoustic Imaging [PDF]

, 1987
This paper describes a system designed and built at the Marine Physical Laboratory of the Scripps Institution of Oceanography to produce acoustic images of the seafloor on-line with a Sea Beammultibeam echo-sounder.
de Moustier, Christian, Pavlicek, F V
core   +2 more sources

Improved method for retrieving Arctic summer sea ice velocity based on FY-3D/MWRI brightness temperatures

International Journal of Digital Earth
Rapid decline in Arctic summer sea ice cover has brought new opportunities for shipping and resource exploitation in the Arctic, and accurate determination of summer sea ice conditions has become increasingly important. Knowledge of sea ice velocity (SIV)
Qian Shi, Fei Shi, Rui Xu, Matti Leppäranta, Xiaochun Zhai, Jiping Liu, Qinghua Yang   +6 more
doaj   +1 more source

Operational SAR-based sea ice drift monitoring over the Baltic Sea [PDF]

Ocean Science, 2012
An algorithm for computing ice drift from pairs of synthetic aperture radar (SAR) images covering a common area has been developed at FMI. The algorithm has been developed based on the C-band SAR data over the Baltic Sea. It is based on phase correlation
J. Karvonen
doaj   +1 more source

Data-Driven Mapping With Prediction Neural Network for the Future Wide-Swath Satellite Altimetry

Frontiers in Marine Science, 2021
Two-dimensional mapping of sea surface height (SSH) for future wide-swath satellite altimetry (WSA) is a challenge at present. So far, considering the utilization of data-driven methods is a new researching direction for SSH mapping. In general, the data-
Jiankai Di, Chunyong Ma, Chunyong Ma, Ge Chen, Ge Chen   +4 more
doaj   +1 more source

Inversion method of deflection of the vertical based on SWOT wide-swath altimeter data

Geodesy and Geodynamics
The deflection of the vertical (DOV) is the key information in the study of ocean gravity field. However, in most areas, the precision of the prime component of DOV is significantly lower than that of the meridian component. To obtain higher accuracy and
Xin Liu, Menghao Song, Chao Li, Guihua Hui, Jinyun Guo, Yongjun Jia, Heping Sun   +6 more
doaj   +1 more source

Swath Mapping on the Continental Shelf and Slope: The Eel River Basin, Northern California [PDF]

, 1996
First Paragraph The STRATAFORM program sponsored by the Office of Naval Research (Nittrouer and Kravitz, 1996, this issue) seeks to understand how sedimentary processes lead to the formation of the stratigraphic sequences on continental margins.
Goff, John A., Hughes Clarke, John E, Mayer, Larry A., Pratson, Lincoln F.   +3 more
core   +2 more sources