Observations of typhoon eye using SAR and IR sensors

Observations of typhoon eye using SAR and IR sensors
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使用 SAR 和红外传感器观测台风眼

DOI:
10.1080/01431161.2014.916450
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发表时间:
2014-06
影响因子:
3.4
通讯作者:
Yang, Jingsong
Yang, Jingsong
中科院分区:
工程技术3区
文献类型:
--
作者:
Liu, Antony K.;He, Shuangyan;Pan, Yufang;Yang, Jingsong

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本文首先综述了近年来利用合成孔径雷达(SAR)、红外辐射计等多传感器图像观测台风眼的研究进展。大的水平距离之间的台风眼在海面上的SAR和那些在云顶的红外传感器已被证明,这些以前被忽略,但不应该被忽略在台风预报和数值模拟。在此基础上,利用已发表的9个台风个例,进一步估算了风云二号(FY-2)和多功能运输卫星(MTSAT)红外探测的云顶台风眼位置与SAR海面观测的云顶台风眼位置之间的水平位移和垂直倾角。不同传感器之间的这种偏移差异引起了FY-2和MTSAT卫星的项目失真和导航系统误差问题,这是空间机构和数据用户都关心的问题。最后,讨论了目前正在进行的研究和未来的研究与台风眼,包括雨带跟踪传感器之间的本地风速的问题。
In this review, recent studies on the observations of typhoon eyes by images acquired by multiple sensors, including synthetic aperture radar (SAR), and infrared (IR) radiometer, are first summarized. Large horizontal distances between typhoon eyes on the ocean surface by SAR and those on the cloud top by IR sensors have been demonstrated; these have previously been ignored but should not be ignored in typhoon forecasts and numerical simulations. Then, based on nine published typhoon cases, the horizontal shifts and vertical tilt angles from the cloud-top typhoon eye locations by IR sensors on board the Feng-Yun 2 (FY-2) and Multi Functional Transport Satellite (MTSAT) to those at sea surface by SAR are further estimated. This shift difference between different sensors raises an issue on project distortion and navigation system errors for FY-2 and MTSAT satellites, which are of concern to both space agencies and data users. Finally, issues for current ongoing study and future research related to typhoon eyes are discussed, including rainband tracking between sensors for local wind speeds.
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