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Fluorescence analysis for chlorophyll-a detection in Mahakam Delta, Indonesia
Sobhytta E.Y.a, Nurdjaman S.a
a Oceanography Department, Faculty of Earth Science and Technology, Bandung Institute of Technology, Bandung, 40132, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2018 Proceedings – 39th Asian Conference on Remote Sensing: Remote Sensing Enabling Prosperity, ACRS 2018Delta Mahakam is one of the water regions in Borneo that experienced considerable sedimentation especially the coastal area which is the area of Case II Water. As a result it causes inaccuracies in the detection of chlorophyll-a from satellite. This is due to sediment and chlorophyll-a having the same light spectrum, which is green-blue, therefore using satellite fluorescence as an alternative way of detecting chlorophyll-a is better. In this study, we use fluorescence data in the form of NFLH (Normalized Fluorescence Line Height) Level 3 Aqua-MODIS data with resolution of 4 km (monthly) throughout the year 2015. From this research, it appears that there is a temporal relationship between the spread of fluorescene with chlorophyll- a. This is due to the unique fluorescence properties that only chlorophyll-a has. Temporally, areas close to the coast (Case II Water) have a high fluorescence and chlorophyll a correlation, while the point that is far from the coast and has a depth of more than -2000 m has a small correlation. During the rainy season, in January to March there is an increase of concentration from chlorophyll-a sensor compared with chlorophyll-fluorescence concentration. This is due to the number of sediments entering the waters and the water column stirring. Fluorescence is good enough in detecting chlorophyll-a without being disturbed by sediment especially during the rainy season and in the Case II Water area. Fluorescence is influenced by several factors, such as rainfall and PAR. The correlation value of a fluorescence and rainfall is > 0.4 in the estuary area whereas the correlation with PAR has negative value for the area along the coast.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Aqua MODIS,Case II,Chlorophyll a,Chlorophyll fluorescence,Fluorescence line height,Fluorescence properties,NFLH,Temporal relationships[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Aqua-MODIS,Case II water,Chlorophyll-a,Fluorescence,NFLH[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]