基于多灰度共生矩陣特征值的黃渤海白天海霧識別算法

doi:10.12306/2022jms.0007

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基于多灰度共生矩陣特征值的黃渤海白天海霧識別算法
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                        10.12306/2022jms.0007
                    
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中圖分類號:P407.8
基金項目:國家自然科學(xué)基金資助項目(42176180);國家重點研發(fā)計劃資助項目(2018YFC1506404);江蘇省研究生科研實踐創(chuàng)新計劃資助項目(KYCX20_0930)

Daytime sea fog recognition algorithm over the Yellow Sea and Bohai Sea based on multi-gray co-occurrence matrix eigenvalues

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本文基于多灰度共生矩陣特征值,即相關(guān)性、對比度、同質(zhì)性和能量,進(jìn)行聯(lián)合海霧遙感判識,提出一種高準(zhǔn)確率黃渤海白天海霧識別算法。采用第二代靜止氣象衛(wèi)星FY-4A可見光、近紅外和紅外數(shù)據(jù),將該算法應(yīng)用于黃渤海區(qū)域白天海霧判識,并利用2019-2020年沿黃渤海氣象站點能見度實測數(shù)據(jù)及CALIPSO衛(wèi)星數(shù)據(jù)產(chǎn)品對本算法識別結(jié)果進(jìn)行精度驗證。結(jié)果表明:海霧識別平均檢測率(POD)為92%,誤報率(FAR)為27%,臨近成功指數(shù)(CSI)為69%,可以實現(xiàn)對海霧的動態(tài)監(jiān)測,為海上交通等領(lǐng)域提供較好的數(shù)據(jù)支持。

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Based on the characteristic values of multi-gray co-occurrence matrix,namely correlation,contrast,contrast sub-matrix and entropy,this paper carried out joint sea fog remote sensing identification,and proposed a high accuracy algorithm for daytime sea fog identification over the Yellow Sea and Bohai Sea area of China.By using visible,near infrared and infrared data of FY-4A,the second generation of geostationary meteorological satellite,the algorithm was used to identify sea fog over the Yellow Sea and Bohai Sea area of China.The visibility data measured by meteorological stations along the Yellow Sea and Bohai Sea during 2019-2020 and CALIOP satellite data products were used to verify the accuracy of remote sensing recognition products.Results show that:the sea fog recognition algorithm is applied to FY-4A data,recognition results and the measured visibility site data accuracy of inspection,the sea fog recognition average shooting (POD) was 92%,the missed detection rate (FAR) was 27%,and the absolute success index (CSI) was 69%.The algorithm can realize the dynamic monitoring of sea fog and provide better data support for maritime traffic and other fields.

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謝濤,郎紫晴,冉茂農(nóng),趙立.基于多灰度共生矩陣特征值的黃渤海白天海霧識別算法.氣象科學(xué),2024,44(1):189-198 XIE Tao, LANG Ziqing, RAN Maonong, ZHAO Li. Daytime sea fog recognition algorithm over the Yellow Sea and Bohai Sea based on multi-gray co-occurrence matrix eigenvalues. Journal of the Meteorological Sciences,2024,44(1):189-198

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收稿日期:2021-12-20
最后修改日期:2022-01-14
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在線發(fā)布日期: 2024-03-13
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