{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:21:16Z","timestamp":1760149276093,"version":"build-2065373602"},"reference-count":37,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2023,7,21]],"date-time":"2023-07-21T00:00:00Z","timestamp":1689897600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["41975039","61705253","2017YFC0211900","ZR2021QD088","2021KJ008","GGIFYTU2313"],"award-info":[{"award-number":["41975039","61705253","2017YFC0211900","ZR2021QD088","2021KJ008","GGIFYTU2313"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012166","name":"National Key R&amp;D Program of China","doi-asserted-by":"publisher","award":["41975039","61705253","2017YFC0211900","ZR2021QD088","2021KJ008","GGIFYTU2313"],"award-info":[{"award-number":["41975039","61705253","2017YFC0211900","ZR2021QD088","2021KJ008","GGIFYTU2313"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100007129","name":"Natural Science Foundation of Shandong Province","doi-asserted-by":"publisher","award":["41975039","61705253","2017YFC0211900","ZR2021QD088","2021KJ008","GGIFYTU2313"],"award-info":[{"award-number":["41975039","61705253","2017YFC0211900","ZR2021QD088","2021KJ008","GGIFYTU2313"]}],"id":[{"id":"10.13039\/501100007129","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100016697","name":"Youth Innovation Technology Project of Higher School in Shandong Province","doi-asserted-by":"publisher","award":["41975039","61705253","2017YFC0211900","ZR2021QD088","2021KJ008","GGIFYTU2313"],"award-info":[{"award-number":["41975039","61705253","2017YFC0211900","ZR2021QD088","2021KJ008","GGIFYTU2313"]}],"id":[{"id":"10.13039\/100016697","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Graduate Innovation Foundation of Yantai University","award":["41975039","61705253","2017YFC0211900","ZR2021QD088","2021KJ008","GGIFYTU2313"],"award-info":[{"award-number":["41975039","61705253","2017YFC0211900","ZR2021QD088","2021KJ008","GGIFYTU2313"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The detection ability of SO2 cameras has been improved effectively, while the calibration is still the main factor that limits their measurement accuracy. This paper presents a nonlinear calibration theory by considering the effect of light dilution due to the path radiance as well as the dependence of plume aerosol on scattering wavelength. This new spectral calibration method is used to retrieve the SO2 column density and emission rate of the Etna volcano. Results show that, compared with the DOAS calibration approach, the inversion error can be reduced by 13% if the new spectral calibration is adopted. The superiority of the proposed method will become more obvious for long-distance detection of optically thick plumes.<\/jats:p>","DOI":"10.3390\/rs15143652","type":"journal-article","created":{"date-parts":[[2023,7,24]],"date-time":"2023-07-24T01:12:28Z","timestamp":1690161148000},"page":"3652","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Spectral Calibration for SO2 Cameras with Light Dilution Effect Correction"],"prefix":"10.3390","volume":"15","author":[{"given":"Kuijun","family":"Wu","sequence":"first","affiliation":[{"name":"School of Physics and Electronic Information, Yantai University, Yantai 264005, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jianjun","family":"Guo","sequence":"additional","affiliation":[{"name":"School of Physics and Electronic Information, Yantai University, Yantai 264005, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zihao","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Physics and Electronic Information, Yantai University, Yantai 264005, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Huiliang","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Physics and Electronic Information, Yantai University, Yantai 264005, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan","family":"Li","sequence":"additional","affiliation":[{"name":"Key Laboratory of Spectral Imaging Technology of Chinese Academy of Sciences, Xi\u2019an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi\u2019an 710119, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Faquan","family":"Li","sequence":"additional","affiliation":[{"name":"Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weiwei","family":"He","sequence":"additional","affiliation":[{"name":"School of Physics and Electronic Information, Yantai University, Yantai 264005, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,7,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"273","DOI":"10.1016\/j.ijleo.2017.12.057","article-title":"SO2 Column density retrieval algorithm using EMD and PCA with application in CEMS based on UV-DOAS","volume":"158","author":"Liu","year":"2018","journal-title":"Optik"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"140885","DOI":"10.1016\/j.scitotenv.2020.140885","article-title":"Protocol development for real-time ship fuel sulfur content determination using drone based plume sniffing microsensor system","volume":"744","author":"Anand","year":"2020","journal-title":"Sci. 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