Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Weihua Ai"'
Publikováno v:
European Journal of Remote Sensing, Vol 57, Iss 1 (2024)
The satellite low-light imagers can detect changes in nighttime lights caused by ground military conflict. The Kyiv Offensive in Kyiv, Ukraine, which lasted less than 40 days during the Russia – Ukraine conflict, began on 24 February 2022. In addit
Externí odkaz:
https://doaj.org/article/4cb272e639aa49ae8b689a604fb86e85
Autor:
Zhancai Liu, Weihua Ai, Xianbin Zhao, Shensen Hu, Kaijun Ren, Chaogang Guo, Li Wang, Mengyan Feng
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 15067-15076 (2024)
Spaceborne synthetic aperture radar (SAR) is gradually being applied to hurricane observation because of its all-weather, high-resolution observation capability. In particular, the retrieval of rain rate using SAR images holds significant scientific
Externí odkaz:
https://doaj.org/article/4470b9f4fa894ef5b80422c6be082e73
Publikováno v:
Remote Sensing, Vol 16, Iss 20, p 3837 (2024)
Tropical cyclones (TCs) are associated with severe weather phenomena, making accurate wind field retrieval crucial for TC monitoring. SAR’s high-resolution imaging capability provides detailed information for TC observation, and wind speed calculat
Externí odkaz:
https://doaj.org/article/909766e633634b1faab671ff09d25202
Publikováno v:
Remote Sensing, Vol 16, Iss 18, p 3433 (2024)
It is rare to conduct a comparative analysis of precipitation characteristics across regions based on long-term homogeneous active satellite observations. By collocating the Global Precipitation Measurement Dual-frequency Precipitation Radar (GPM DPR
Externí odkaz:
https://doaj.org/article/9c12578ce76747dc82b0e662b321b570
Publikováno v:
Remote Sensing, Vol 16, Iss 15, p 2767 (2024)
In order to address the issue of limited common coverage and high cost in mapping ocean surface vector current by two (or more) high-frequency surface wave radars, this paper proposes a single-station surface wave radar vector current inversion algor
Externí odkaz:
https://doaj.org/article/ab4dad9c83e148918ced430fa5d75bdd
Publikováno v:
IET Radar, Sonar & Navigation, Vol 17, Iss 6, Pp 1017-1022 (2023)
Abstract Ionospheric phase contamination (IPC) is a major contributor to the imprecise retrieval of ocean dynamics parameters by the high‐frequency hybrid sky‐surface wave radar (HFHSSW). Since the direct wave and sea echo of HFHSSW have comparab
Externí odkaz:
https://doaj.org/article/5698c9415be442bbbd9badef8543448f
Publikováno v:
Earth and Space Science, Vol 10, Iss 12, Pp n/a-n/a (2023)
Abstract This study addresses the issue of locating the scattering points on the sea surface and rectifying the interference caused by the ionosphere phase in the remote sensing of ocean dynamics parameters. Wide‐beam high‐frequency hybrid sky‐
Externí odkaz:
https://doaj.org/article/82611683a0e947daa0e4244a64f36623
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 9437-9447 (2023)
This article describes a new elliptical current (${\overset{\scriptscriptstyle\rightharpoonup}{v}}_{E - \text{ssw}}$) retrieval scheme for single-station wide-beam high-frequency sky–surface wave radar, which focuses on solving the problem of locat
Externí odkaz:
https://doaj.org/article/41e1b5070f03475989f6c1a0f43c57cf
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 321-328 (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
Externí odkaz:
https://doaj.org/article/f30fbd4944ac48fd97a7a71b1893007f
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 15, Pp 3868-3876 (2022)
Sea surface wind streak is one of many geophysical phenomena in synthetic aperture radar (SAR) images, which is often used to obtain sea surface wind direction. At present, the recognition of wind streaks mainly depends on artificial experience, and
Externí odkaz:
https://doaj.org/article/f02077304e854135bfe391e10df2baeb