ALQADRI, GILANG RIZKI (2022) PERBANDINGAN POLA DISTRIBUSI KLOROFIL-A DATA INSITU VS CITRA SENTINEL 3 DAN KETERKAITANNYA DENGAN KUALITAS AIR DI PERAIRAN MUARA SUNGAI BODRI, KENDAL(22o259). Undergraduate thesis, Universitas Diponegoro.

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Abstract

ABSTRAK
Gilang Rizki AlQadri. 26020216130048. Perbandingan Pola Distribusi Klorofila Data Insitu Vs Citra Sentinel 3 dan Keterkaitannya dengan Kualitas Air di
Perairan Muara Sungai Bodri, Kendal. (Kunarso dan Muslim)
Peningkatan pemanfaatan lahan seperti pertanian, pertambakan, perikanan,
pemukiman, dan industi terjadi di sepanjang Sungai Bodri. Peningkatan ini dapat
mempengaruhi tingkat kesuburan perairan tersebut. Tingkat kesuburan perairan
dapat dilihat dari konsentrasi klorofil-a. Pendugaan konsentrasi klorofil-a di
perairan perlu dilakukan menggunakan metode yang lebih efektif, salah satunya
menggunakan citra Sentinel 3. Penelitian ini bertujuan untuk mengetahui pola
kesesuaian dan akurasi klorofil-a citra sentinel 3 dengan data insitu, serta
keterkaitannya dengan kualitas air di perairan muara Sungai Bodri, Kendal.
Penelitian ini dilakukan dengan metode kuantitatif deskriptif. Hasil penelitian
menunjukkan konsentrasi klorofil-a sebesar 1,78 mg/m
3
– 4,28 mg/m
3
, dan hasil
pengolahan data citra Sentinel 3 menunjukkan konsentrasi klorofil-a sebesar 1,85
mg/m
3
– 5,3 mg/m
3
. Pola distribusi konsentrasi klorofil-a data insitu dan citra
Sentinel 3 menunjukkan pola yang relatif sama, yaitu konsentrasi klorofi-a tertinggi
di wilayah muara Sungai Bodri dan semakin rendah ke arah laut. Nilai korelasi
antara konsentrasi klorofil-a insitu dan klorofil-a citra sebesar r = 0,935,
menunjukkan bahwa korelasi tersebut memiliki hubungan yang sangat kuat. Hasil
uji Root Mean Square Error (RMSE) menunjukkan data citra Sentinel 3 memiliki
hasil yang akurat (RMSE = 0,566 mg/m
3
, R
2
= 0.875 dan r = 0.935).
Kata Kunci : Klorofil-a, Sentinel 3, RMSE, Muara Sungai Bodri

ABSTRACT
Gilang Rizki AlQadri. 26020216130048. Comparison of the Distribution Pattern
of Chlorophyll-a Data Insitu Vs Sentinel 3 Image and its Relation to the Quality at
Bodri River’s Estuary. Kendal. (Kunaraso and Muslim)
Increased land use such as agriculture, aquaculture, fisheries, settlements, and
industry occurred along the Bodri River. This increase can affect the fertility level
of these waters. The level of water fertility can be seen from the concentration of
chlorophyll a. It is necessary to observe the condition of the waters, for better
utilization in the future It is necessary to estimate the concentration of chlorophylla in waters using more effective methods, one of which is using Sentinel 3 imagery.
This study aims to determine the suitability pattern and accuracy of chlorophyll-a
sentinel 3 imagery with insitu data, as well as its relationship to water quality in the
waters of the Bodri river estuary, Kendal. This research was conducted using
descriptive kuantitative methode. The result of the risearch showed the
concentration of chlorophyll-a of 1.78 mg/m3 – 4.28 mg/m3, and the results of
image data processing Sentinel 3 showed the concentration of chlorophyll -a of 1.85
mg/m3 – 5.3 mg/m3. The distribution pattern of chlorophyll-a concentration insitu
data and Sentinel 3 image shows a relatively similar pattern, the highest
chlorophyll-a concentration in the estuary area of the Bodri river and lower towards
the sea. Correlation value between insitu chlorophyll a and image chlorophyll a
concentration is r = 0,935, it show that this correlation has a very strong
relationship. The results of the Root Mean Square Error (RMSE) test show that
Sentinel 3 image data has accurate results (RMSE = 0,566 mg/m
3
, R2 = 0.875 and
r = 0.935).
Keywords : Chlorophyll-a, Sentinel 3, RMSE, Bodri . River Estuary

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