Results 11 to 20 of about 3,734 (258)

Retrieval of Ocean Wind Speed Using Airborne Reflected GNSS Signals

IEEE Access, 2019
This paper develops the models that can be used in different flight scenarios to retrieve the wind speed using the width of the normalized delay waveform (NDW).
Hongxing Gao, Dongkai Yang, Feng Wang, Qiang Wang, Xiaohui Li   +4 more
doaj   +2 more sources

Assessment of CYGNSS Wind Speed Retrievals in Tropical Cyclones [PDF]

Remote Sensing, 2021
The NASA CYGNSS satellite constellation measures ocean surface winds using the existing network of the Global Navigation Satellite System (GNSS) and was designed for measurements in tropical cyclones (TCs). Here, we focus on using a consistent methodology to validate multiple CYGNSS wind data records currently available to the public, some focusing on ...
Lucrezia Ricciardulli, Carl A. Mears, Andrew Manaster, Thomas Meissner   +3 more
openaire   +3 more sources

On the Use of Azimuth Cutoff for Sea Surface Wind Speed Retrieval From SAR

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
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, Giuseppe Grieco, Jiarong Lin, Marcos Portabella, Xiaoqing Wang   +4 more
doaj   +3 more sources

Global wind speed retrieval from sar [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 2003
The global availability of synthetic aperture radar (SAR) wave mode data from the European Remote Sensing (ERS) satellites ERS-1 and ERS-2, as well as ENVISAT, allows for the investigation of the wind field over the ocean on a global and continuous basis.
Jochen Horstmann, Helmut Schiller, Johannes Schulz-Stellenfleth, Susanne Lehner   +3 more
openaire   +3 more sources

Correction of Sea Surface Wind Speed Based on SAR Rainfall Grade Classification Using Convolutional Neural Network

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The technology of retrieving sea surface wind field from spaceborne synthetic aperture radar (SAR) is increasingly mature. However, the retrieval of the sea surface wind field related to the precipitation effect is still facing challenges, especially the
Chaogang Guo, Weihua Ai, Xi Zhang, Yanan Guan, Yin Liu, Shensen Hu, Xianbin Zhao   +6 more
doaj   +1 more source

Sea Surface Wind Retrieval under Rainy Conditions from Active and Passive Microwave Measurements

Remote Sensing, 2022
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, Yinan Li, Xiaojiao Yang, Wu Zhou, Ailing Lv, Xu Jin, Hongxing Dang   +6 more
doaj   +1 more source

First Assessment of CyGNSS-Incorporated SMAP Sea Surface Salinity Retrieval Over Pan-Tropical Ocean

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In sea surface salinity (SSS) retrieval using L-band passive radiometry, radiometer-independent ocean wind speed is needed as auxiliary data. Wind speed data from scatterometer and weather models are commonly used as auxiliary data in satellite SSS ...
Baojian Liu, Wei Wan, Zhizhou Guo, Rui Ji, Tsechun Wang, Guoqiang Tang, Yaokui Cui, Yang Hong   +7 more
doaj   +1 more source

Stepped Frequency Microwave Radiometer Wind-Speed Retrieval Improvements [PDF]

Remote Sensing, 2019
With the operational deployment of the Stepped Frequency Microwave Radiometer (SFMR), hurricane reconnaissance and research aircraft provide near real-time observations of the 10 m ocean-surface wind-speed both within and around tropical cyclones. Hurricane specialists use these data to assist in determining wind radii and maximum sustained winds—
Joseph W. Sapp, Suleiman O. Alsweiss, Zorana Jelenak, Paul S. Chang, James R. Carswell   +4 more
openaire   +3 more sources

A Novel Integrated Algorithm for Wind Vector Retrieval from Conically Scanning Scatterometers

Remote Sensing, 2013
Due to the lower efficiency and the larger wind direction error of traditional algorithms, a novel integrated wind retrieval algorithm is proposed for conically scanning scatterometers. The proposed algorithm has the dual advantages of less computational
Xuetong Xie, Zhou Huang, Mingsen Lin, Kehai Chen, Youguo Lan, Xinzhe Yuan, Xiaomin Ye, Juhong Zou   +7 more
doaj   +1 more source

Profiling wind and greenhouse gases by infrared-laser occultation: results from end-to-end simulations in windy air [PDF]

Atmospheric Measurement Techniques, 2015
The new mission concept of microwave and infrared-laser occultation between low-Earth-orbit satellites (LMIO) is designed to provide accurate and long-term stable profiles of atmospheric thermodynamic variables, greenhouse gases (GHGs), and line-of-
A. Plach, V. Proschek, G. Kirchengast
doaj   +1 more source