Use of AERONET-OC for validation of SGLI/GCOM-C products in Ariake Sea, Japan
| العنوان: | Use of AERONET-OC for validation of SGLI/GCOM-C products in Ariake Sea, Japan |
|---|---|
| المؤلفون: | Joji Ishizaka, Mengmeng Yang, Naoki Fujii, Toshiya Katano, Masahiro Hori, Takayuki Mine, Katsuya Saitoh, Hiroshi Murakami |
| المصدر: | Journal of Oceanography. 78:291-309 |
| بيانات النشر: | Springer Science and Business Media LLC, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Oceanography |
| الوصف: | A station of AErosol RObotic NETwork Ocean Color (AERONET-OC) has been set on the Ariake Observation Tower of Saga University on April, 2018, for verification of the Second generation Global Imager (SGLI)/Global Change Observation Mission-Climate (GCOM-C). Remote sensing reflectance (Rrs) observed by the AERONET-OC was used for verification of SGLI. SGLI Version 1 data underestimated the shortwave Rrs and Rrs (380) and Rrs(412) were mostly negative, while the estimation was improved by Version 2 with the correction of Rrs(412) to be positive. It was indicated that absorptive aerosol was influenced to SGLI atmospheric correction and caused the underestimation of Rrs. Simple linear correction method to improve shortwave Rrs also worked well for specifically Version 1 data. Water constituents, chlorophyll-a (Chl-a), total suspended matter (TSM) and colored dissolved organic matter (CDOM) of the SGLI were also verified by the ship observation data. All constituents were improved from Version 1 to 2 with the correction of Rrs, although Version 2 underestimated Chl-a and CDOM. Simple regression algorithms were also examined with in situ as well as SGLI Rrs data, and it indicated that more sophisticated algorithms may be required. Time series of water constituents derived from AERONET-OC and SGLI data were compared to river discharge and spring–neap tidal cycle. The results indicated that the behavior, such as the increase of Chl-a after river discharge and interaction of Chl-a and TSM with the spring–neap tidal cycles were observed, although estimations of water constituents were not completely separated by the algorithms. |
| تدمد: | 1573-868X 0916-8370 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::50e3ff2ac20c89869d29ddbf2ef4dca5 https://doi.org/10.1007/s10872-022-00642-9 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........50e3ff2ac20c89869d29ddbf2ef4dca5 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 1573868X 09168370 |
|---|