Manuel, A. und Blanco, A.C. und Tamondong, A.M. und Jalbuena, R. und Cabrera, O. und Gege, Peter (2019) Optimization of bio-optical model parameters for turbid lake water quality estimation using LANDSAT 8 and WASI-2D. In: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XLII-3, Seiten 67-72. ISPRS. PECORA 21/ISRSE 38 Joint Meeting, 6.-11. Oct. 2019, Baltimore, Maryland, USA. doi: 10.5194/isprs-archives-XLII-3-W11-67-2020. ISSN 1682-1750.
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Offizielle URL: https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-3-W11/67/2020/
Kurzfassung
Laguna Lake, the Philippines' largest freshwater lake, has always been historically, economically, and ecologically significant to the people living near it. However, as it lies at the center of urban development in Metro Manila, it suffers from water quality degradation. Water quality sampling by current field methods is not enough to assess the spatial and temporal variations of water quality in the lake. Regular water quality monitoring is advised, and remote sensing addresses the need for a synchronized and frequent observation and provides an efficient way to obtain bio-optical water quality parameters. Optimization of bio-optical models is done as local parameters change regionally and seasonally, thus requiring calibration. Field spectral measurements and in-situ water quality data taken during simultaneous satellite overpass were used to calibrate the bio-optical modelling tool WASI-2D to get estimates of chlorophyll-a concentration from the corresponding Landsat-8 images. The initial output values for chlorophyll-a concentration, which ranges from 10-40 ug/L, has an RMSE of up to 10 ug/L when compared with in situ data. Further refinements in the initial and constant parameters of the model resulted in an improved chlorophyll-a concentration retrieval from the Landsat-8 images. The outputs provided a chlorophyll-a concentration range from 5-12 ug/L, well within the usual range of measured values in the lake, with an RMSE of 2.28 ug/L compared to in situ data.
elib-URL des Eintrags: | https://elib.dlr.de/137063/ | ||||||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||
Titel: | Optimization of bio-optical model parameters for turbid lake water quality estimation using LANDSAT 8 and WASI-2D | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 2019 | ||||||||||||||||||||||||||||
Erschienen in: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||
Band: | XLII-3 | ||||||||||||||||||||||||||||
DOI: | 10.5194/isprs-archives-XLII-3-W11-67-2020 | ||||||||||||||||||||||||||||
Seitenbereich: | Seiten 67-72 | ||||||||||||||||||||||||||||
Verlag: | ISPRS | ||||||||||||||||||||||||||||
ISSN: | 1682-1750 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | Remote sensing, inland water, chl-a, bio-optical modeling, inversion, WASI | ||||||||||||||||||||||||||||
Veranstaltungstitel: | PECORA 21/ISRSE 38 Joint Meeting | ||||||||||||||||||||||||||||
Veranstaltungsort: | Baltimore, Maryland, USA | ||||||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||
Veranstaltungsdatum: | 6.-11. Oct. 2019 | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | Vorhaben Spektroskopische Verfahren in der Fernerkundung (alt) | ||||||||||||||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Methodik der Fernerkundung > Experimentelle Verfahren | ||||||||||||||||||||||||||||
Hinterlegt von: | Gege, Dr.rer.nat. Peter | ||||||||||||||||||||||||||||
Hinterlegt am: | 05 Nov 2020 11:13 | ||||||||||||||||||||||||||||
Letzte Änderung: | 10 Nov 2020 13:50 |
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