USAMAH, ACHMAD (2023) KAJIAN SEBARAN SUHU PERMUKAAN LAUT (SPL) DI PERAIRAN PLTU KARANGKANDRI CILACAP BERDASARKAN CITRA SATELIT LANDSAT 9 PERIODE APRIL 2022 – JUNI 2023 (23dos373). Undergraduate thesis, Fakultas Perikanan dan Ilmu Kelautan.

Text Achmad Usamah 23dos373.pdf Download (401kB)

Abstract

ABSTRAK
(Achmad Usamah. 26050119120026. Kajian Sebaran Suhu Permukaan Laut
(SPL) di Perairan PLTU Karangkandri Cilacap Berdasarkan Citra Satelit Landsat 9
Periode April 2022 – Juni 2023. Gentur Handoyo dan Azis Rifai).
Pembangkit listrik tenaga uap (PLTU) yang beroperasi di Desa karangkandri,
kecamatan Kesugihan, Kabupaten Cilacap menghasilkan limbah air panas (air
bahang). Sebelum dibuang ke perairan Laut Selatan Jawa, limbah air panas telah
mengalami pendinginan pada kolam pendingin. Namun demikian limbah air panas
tersebut masih memiliki suhu yang lebih tinggi daripada suhu lingkungan perairan.
Penelitian ini bertujuan untuk memetakan sebaran SPL di perairan sekitar PLTU
Karangkandri berdasarkan citra landsat 9 TIRS, serta mengkaji dinamika SPL pada
periode April 2022 sampai Juni 2023 di perairan sekitar PLTU Karangkandri.
Metode penelitian adalah deskriptif kuantitatif, penentuan titik stasiun pengambilan
data lapangan menggunakan metode purposive sampling. Penelitian menggunakan
data primer berupa SPL berdasarkan citra Landsat 9, serta data arus permukaan
yang dimodelkan menggunakan software MIKE 21. Data SPL dan arus permukaan
tersebut diverifikasi menggunakan data suhu permukaan laut dan data arus
permukaan hasil pengukuran lapangan. Hasil dari penelitian ini menunjukkan
adanya sebaran suhu permukaan laut yang dipengaruhi air bahang PLTU pada
periode April 2022 – Juni 2023. Peta sebaran suhu tertinggi didapatkan pada tanggal
15 Maret 2023 dengan rentang suhu 32-37˚C yang menyebar sepanjang garis Pantai
dan menuju Tengah laut. Pada 18 Mei 2023 dilakukan validasi antara suhu lapangan
dengan rentang 27,4-35,4˚C sedangkan suhu permukaan laut hasil olah citra
Landsat 9 TIRS adalah 29-35,7˚C. Uji validasi dilakukan menggunakan RMSE
pada suhu permukaan laut dimana nilai RSME bernilai 0,68. Sebaran suhu
permukaan laut tersebut dipengaruhi oleh pergerakan arus menuju selatan – barat
daya.
Kata Kunci: Air Bahang, Citra Landsat 9 TIRS, Suhu Permukaan laut, PLTU
Karangkandri

ABSTRACT
(Achmad Usamah. 26050119120026. Study of Sea Surface Temperature
Distribution (SPL) in the Waters of PLTU Karangkandri Cilacap Based on Landsat
9 Satellite Images for the Period April 2022 – June 2023. Gentur Handoyo and
Azis Rifai).
The steam power plant (PLTU) operating in Karangkandri Village,
Kesugihan District, Cilacap Regency produces hot water waste (bahan water).
Before being discharged into the waters of the South Java Sea, hot water waste has
undergone cooling in cooling ponds. However, the hot water waste still has a higher
temperature than the temperature of the aquatic environment. This study aims to
map the distribution of SST in the waters around the Karangkandri PLTU based on
landsat 9 TIRS images, as well as examine the dynamics of SST in the period April
2022 to June 2023 in the waters around the Karangkandri PLTU. The research
method is descriptive quantitative, determination of field data collection station
points using purposive sampling method. The study used primary data in the form
of SST based on Landsat 9 imagery, as well as surface current data modeled using
MIKE 21 software. The SST and surface current data were verified using sea
surface temperature data and surface current data from field measurements. The
result of this study is the distribution of sea surface temperatures influenced by
PLTU heat water in the period April 2022 – June 2023. The highest temperature
distribution map was obtained on March 15, 2023 with a temperature range of 32-
37°C spreading along the coastline and towards the middle of the sea. On May 18,
2023, validation was carried out between field temperatures in the range of 27.4-
35.4°C while sea surface temperatures processed by Landsat 9 TIRS images were
29-35.7°C. The validation test was performed using RMSE at sea surface
temperature where the RSME value was 0.68. The distribution of sea surface
temperature is influenced by the movement of currents towards the south –
southwest.
Keywords: Heat Water, Citra Landsat 9 TIRS, Sea Surface Temperature, PLTU
Karangkandri

Actions (login required)

View Item