Response Characteristics of FY-3E Outgoing Longwave Radiation to Impending Earthquakes Based on the ATSCTF Algorithm: A Case Study of the 2023 Türkiye Double Earthquakes

IF 4.7 2区地球科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Pub Date : 2024-09-04 DOI:10.1109/JSTARS.2024.3454693

Jing Cui;Siquan Yang;Haizhen Zhang;Jun Liu;Wenliang Jiang;Ji Wei;Lin Wang;Yalan Huang;Chenyu Ma

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引用次数: 0

Abstract

The FengYun-3E (FY-3E) satellite was successfully launched on 5 July 2021. It is a polar-orbiting meteorological satellite and the world's first civilian morning and night orbit meteorological satellite. It carries a medium-resolution spectral imager-LL payload that delivers high-resolution outgoing longwave radiation (OLR) products. OLR can reflect more atmospheric change information, is more sensitive to temperature change, and can better reflect the entire surface atmospheric system, which is conducive to the in-depth understanding of the seismic sphere coupling module. OLR is widely used in seismic infrared anomaly extraction. The additive tectonic stress from the celestial tide-generating force (ATSCTF) seismic anomaly extraction algorithm has been continuously improved. However, the threshold of seismic thermal anomaly is mostly based on experience. The results of the quartile algorithm are objective, and it has some advantages in recognizing abnormal values. Whether the FY-3E can be used for seismic risk monitoring remains to be investigated. In this study, the 2023 Türkiye double earthquakes are taken as an example; the seismic anomalies of FY-3E OLR data are extracted based on the ATSCTF algorithm, and the anomaly threshold is determined via the quartile method. The results show that the ATSCTF algorithm based on the quartile threshold method is suitable for FY-3E data, and FY-3E OLR data have a certain response to pre-earthquake radiation anomalies, which can be used for seismic infrared anomaly tracking. The comprehensive use of ascending and descending data can better serve the extraction of seismic anomalies. High-resolution temporal remote sensing data are more conducive to the extraction of seismic anomalies via ATSCTF. The research and practice of seismic risk monitoring based on the ATSCTF algorithm can be further strengthened.

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基于 ATSCTF 算法的 FY-3E 外向长波辐射对即将发生的地震的响应特征：2023 年土耳其双地震案例研究

风云三号 E 卫星（FY-3E）于 2021 年 7 月 5 日成功发射。它是一颗极轨气象卫星，也是世界首颗民用晨夜轨道气象卫星。它携带一个中分辨率光谱成像仪-LL 有效载荷，可提供高分辨率的出射长波辐射（OLR）产品。OLR能反映更多的大气变化信息，对温度变化更加敏感，能更好地反映整个地表大气系统，有利于深入了解地震球耦合模块。OLR 广泛应用于地震红外异常提取。天体成潮力（ATSCTF）地震异常提取算法的构造应力加和也在不断改进。然而，地震热异常的阈值大多基于经验。四分法算法结果客观，在识别异常值方面具有一定优势。FY-3E 能否用于地震风险监测还有待研究。本研究以 2023 年土尔其双地震为例，基于 ATSCTF 算法提取 FY-3E OLR 数据的地震异常值，并通过四分位法确定异常阈值。结果表明，基于四分阈值法的 ATSCTF 算法适用于 FY-3E 数据，且 FY-3E OLR 数据对震前辐射异常有一定的响应，可用于地震红外异常跟踪。升沉数据的综合利用可以更好地服务于地震异常的提取。高分辨率时空遥感数据更有利于通过 ATSCTF 提取地震异常。基于 ATSCTF 算法的地震风险监测研究与实践有待进一步加强。

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来源期刊

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 地学-成像科学与照相技术

CiteScore

9.30

自引率

10.90%

发文量

563

审稿时长

4.7 months

期刊介绍： The IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing addresses the growing field of applications in Earth observations and remote sensing, and also provides a venue for the rapidly expanding special issues that are being sponsored by the IEEE Geosciences and Remote Sensing Society. The journal draws upon the experience of the highly successful “IEEE Transactions on Geoscience and Remote Sensing” and provide a complementary medium for the wide range of topics in applied earth observations. The ‘Applications’ areas encompasses the societal benefit areas of the Global Earth Observations Systems of Systems (GEOSS) program. Through deliberations over two years, ministers from 50 countries agreed to identify nine areas where Earth observation could positively impact the quality of life and health of their respective countries. Some of these are areas not traditionally addressed in the IEEE context. These include biodiversity, health and climate. Yet it is the skill sets of IEEE members, in areas such as observations, communications, computers, signal processing, standards and ocean engineering, that form the technical underpinnings of GEOSS. Thus, the Journal attracts a broad range of interests that serves both present members in new ways and expands the IEEE visibility into new areas.