Results 1 to 10 of about 2,219 (111)
Optimization of the NRCS Sampling at the Sea Wind Retrieval by the Airborne Rotating-Beam Scatterometer Mounted under Fuselage [PDF]
The optimization of normalized radar cross-section (NRCS) sampling by a scatterometer allows an increase in the accuracy of the wind retrieval over the water surface and a decrease in the time of the measurement.
Alexey Nekrasov +2 more
doaj +4 more sources
Sea Surface Wind Retrieval under Rainy Conditions from Active and Passive Microwave Measurements
The space-borne microwave radiometers and scatterometers can effectively measure global sea surface winds under non-precipitation. However, the measurements in rainy conditions significantly degrade, which are usually flagged as poor quality or ...
Shubo Liu +6 more
doaj +3 more sources
Sea Surface Wind Speed Retrieval from Marine Radar Image Sequences Based on GLCM-Derived Texture Features [PDF]
Sea surface wind speed is a key parameter in marine meteorology, navigation safety, and offshore engineering. Traditional marine radar wind speed retrieval algorithms often suffer from poor environmental adaptability and limited applicability across ...
Hui Wang +4 more
doaj +2 more sources
Optimization of Airborne Scatterometer NRCS Semicircular Sampling for Sea Wind Retrieval
Airborne scatterometer capability depends on not only the device’s technical characteristics but also the scheme used for surface observations. Typically, a rotating-beam scatterometer uses a circular scheme for sampling normalized radar cross-sections ...
Alexey Nekrasov +2 more
doaj +3 more sources
In this paper, a method for joint sea surface rainfall intensity (RI), wind speed, and wave height retrieval based on spaceborne global navigation satellite system reflectometry (GNSS-R) data is proposed, which especially considers the effects between ...
Jinwei Bu +4 more
doaj +3 more sources
On the Use of Azimuth Cutoff for Sea Surface Wind Speed Retrieval From SAR
The accurate retrieval of sea-surface wind field data is crucial for weather forecasting and climate modeling. Despite this, the complexity of sea surface conditions poses significant challenges for satellite-based synthetic aperture radar (SAR) wind ...
Yuting Zhu +4 more
doaj +3 more sources
Spaceborne global navigation satellite system reflectometry method has been increasingly utilized for sea ice parameters retrieval. The coupling effects between wind speed and retrieval parameters was not considered in both traditional threshold-based ...
Wei Ban +5 more
doaj +3 more sources
Sea Surface Wind Retrievals from SIR-C/X-SAR Data: A Revisit
The Geophysical Model Function (GMF) XMOD1 provides a linear algorithm for sea surface wind field retrievals for the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR).
Yongzheng Ren +2 more
doaj +3 more sources
Wind Direction Retrieval Using Support Vector Machine from CYGNSS Sea Surface Data
In view of the difficulty of wind direction retrieval in the case of the large space and time span of the global sea surface, a method of sea surface wind direction retrieval using a support vector machine (SVM) is proposed.
Yun Zhang +6 more
doaj +1 more source
The interferometric imaging radar altimeter (InIRA) adopts a short baseline along with small incidence angles to acquire interferometric signals from the sea surface with high accuracy, thus the wide-swath sea surface height (SSH) and backscattering ...
Guo Li, Yunhua Zhang, Xiao Dong
doaj +1 more source

