Results 321 to 330 of about 439,158 (345)

Measurement of the sea surface wind vector by an airborne altimeter

IEEE International Geoscience and Remote Sensing Symposium, 2003
A pilot needs operational information about wind over sea as well as wave height to provide safety of hydroplane landing on water. Near-surface wind speed and direction can be obtained with an airborne microwave scatterometer, radar designed for measuring the scatter characteristics of a surface.
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Remote Sensing of Sea-Surface Winds

1987
Several techniques for estimating near-surface winds from space by microwave sensors have become established in the last few years. The instruments used are the scatterometer, altimeter and scanning multichannel microwave radiometer. For each the different sensor characteristics and the physical basis of wind extraction are described.
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Wind Stress Along the Sea Surface

1967
Publisher Summary Frictional phenomena at the sea–air interface are not identical with those occurring over land. A fluid surface is not rigid and; therefore, permits transmission of mechanical energy. Because of its extension and relative uniformity, the sea surface also tends to excite a much narrower range of perturbation frequencies in the ...
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An Algorithm for Sea-Surface Wind Field Retrieval From GNSS-R Delay-Doppler Map

IEEE Geoscience and Remote Sensing Letters, 2014
In this letter, a new method is presented to retrieve sea-surface wind fields by least squares (LS) fitting the 2-D simulated global navigation satellite system reflectometry (GNSS-R) delay-Doppler maps (DDMs) to the measured data.
Chen Li, Weimin Huang
semanticscholar   +1 more source

Surface wind and sea waves in a hurricane field

Nature, 1977
THE hazards associated with a hurricane are extremely strong wind, violent seas and heavy rain. Over the seas, heavy rain does not pose as much problem as the other two. It is very rare to get detailed information of surface winds and waves in the hurricane field over the seas. The only set of documented data regarding surface wind and heights of waves
A. K. MUKHERJEE, T. R. SIVARAMAKRISHNAN
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On the wave dependence of sea-surface wind stress

Journal of the Oceanographical Society of Japan, 1990
Analysis is made of wind and wave data, which were obtained during the passage of Typhoon 8013 at an Ocean Data Buoy Station south of Honshu operated by the Japan Meteorological Agency, in order to investigate the wave dependence of sea-surface roughness parameter in the situation where wind waves are dominant with less significant swells. The data fit
Naoto Ebuchi, Yoshiaki Toba, Hiroshi Kawamura   +2 more
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ON THE RELATIONSHIP BETWEEN GEOSTROPHIC AND SURFACE WIND AT SEA

Monthly Weather Review, 1971
Abstract The ratio between observed surface and geostrophic wind speed has been investigated from observations at the German Bight, taking geostrophic wind and the air-sea temperature difference as parameters. The ratio decreases with increasing geostrophic wind and increasing stability.
LUTZ HASSE, VOLKER WAGNER
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A Note on the Drag of the Sea Surface at Hurricane Winds

Boundary-Layer Meteorology, 2005
Based on the solution of the turbulent kinetic energy balance equation for the airflow in the regime of limited saturation by suspended sea-spray droplets, some experimental evidence, and simple arguments, a resistance law of the sea surface at hurricane winds is derived.
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Directional spectrum of the sea surface and wind scatterometry

International Journal of Remote Sensing, 1993
This article is concerned with the spectral description of the ocean surface, as required for microwave remote sensing applications. Users are interested in the availability of efficient inversion algorithms for the determination of geophysical parameters such as the wind speed or the wave heights.
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The energy cycle of wind waves on the sea surface

Izvestiya, Atmospheric and Oceanic Physics, 2010
The problems of wind-induced waves on the sea surface are considered. To this end, the empirical fetch laws that determine variations in the basic periods and heights of waves in relation to their fetch are used. The relation between the fetch and the physical time is found, as are the dependences of the basic characteristics of waves on the time of ...
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