Oseanographic Factors and Land Cover Change in

Cimandiri Watershed Against Phytoplankton

Distribution in Cimandiri Estuary, West Java

With Sentinel-2A Imagery

Dhandy Septian W, S. Supriatna, T.G. Pin Department of Geography

Faculty of Mathematics & Natural Sciences

Universitas Indonesia

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BACKGROUND

To Know the Effect of Oceanography Factor and

Land Cover Change in Cimandiri Watershed Against

Phytoplankton with Remote Sensing Metode

GOALS ?

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METHOD

𝑇𝑂𝑇𝐴𝐿 𝑆𝑈𝑆𝑃𝐸𝑁𝐷𝐸𝐷 𝑆𝑂𝐿𝐼𝐷 = 8.1429 * exp (23.704 * Band Red)

𝑆𝐴𝐿𝐼𝑁𝐼𝑇𝑌 = 139,566970+(86,21318∗𝐿𝑁 𝐵𝑙𝑢𝑒) – (24,62518∗𝐿𝑁 𝑅𝑒𝑑)

𝐶𝐻𝐿𝑂𝑅𝑂𝑃𝐻𝑌𝐿𝐿−𝐴 = 0.2818 𝑥(𝑅𝑒𝑑+𝑁𝐼𝑅)

𝐺𝑟𝑒𝑒𝑛3,497

LAND COVER = Data processing of land cover is done by digitizing with imageinterpretation in Cimandiri watershed in 2016, 2017, 2018, 2019, and 2020 based on theclassification of SNI 2010 and SNI 2014 as well as modifications made to adjust theresearch needs

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Figure 5. Land Cover in Cimandiri watershed 2016 - 2020

2016 % 2017 % 2018 % 2019 % 2020 %

1 Plantations 86520,63 49,42 86818,67 49,59 86862,08 49,61 86799,13 49,58 86829,54 49,59

2 Settlements 16352,03 9,34 16451,38 9,40 16588,19 9,47 16596,05 9,48 16635,06 9,50

3 Forest 46693,83 26,67 46696,95 26,67 46679,72 26,66 46679,72 26,66 46681,73 26,66

4 Paddy Field 23979,71 13,70 23532,68 13,44 23338,45 13,33 23401,40 13,37 23426,05 13,38

5 Rivers 984,11 0,56 982,01 0,56 977,02 0,56 977,02 0,56 977,02 0,56

6 Open Land 553,12 0,32 601,73 0,34 637,92 0,36 630,06 0,36 633,97 0,36

175083,44 100,00 175083,42 100,00 175083,38 100,00 175083,38 100,00 175083,378 100,00

NOClassification

AREA

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The abundance of the distribution of phytoplankton in each year is influenced by

certain factors. The factors that affected the distribution of phytoplankton from

2016 to 2020 are oceanographic factors, such as Total Suspended Solids and

Salinity more than land cover change in cimandiri watershed.

The existence of phytoplankton distribution is also influenced by the rainfall in

the month that exists every year, which shows that the distribution of

phytoplankton is in the wet month has a higher value more than in the dry month.

CONCLUSION

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References

Thanks!

Any questions?

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