SUCI, DWITYA RAHMA (2022) ANALISIS PASANG SURUT DALAM RANGKA PENENTUAN TINGGI DERMAGA DI TIMBULSLOKO, DEMAK, JAWA TENGAH (22o471). Undergraduate thesis, Universitas Diponegoro.

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Abstract

ABSTRAK
Dwitya Rahma Suci. 26050118140073. Analisis Pasang Surut Dalam
Rangka Penentuan Tinggi Dermaga Di Timbulsloko, Demak, Jawa
Tengah. (Warsito Atmodjo & Heryoso setiyono)
Perairan Timbulsloko terletak di Kecamatan Sayung Demak, perairan ini memiliki
topografi yang landai dan elevasi rendah sehingga rentan mengalami banjir (rob)
karena dampak kenaikan muka air laut. Timbulsloko merupakan bagian dari sirkulasi
pasang surut dan arus laut yang selalu berubah sesuai dengan perubahan musim. Hal
ini disebabakan rata – rata ketinggian permukaan tanah di Kecamatan Sayung berada
pada ketinggian permukaan air surut terendah dan pasang tertinggi. Penelitian ini
bertujuan untuk mengetahui nilai formzahl dan nilai komponen harmonik pasang
surut di Timbulsloko dan menentukan nilai muka air laut rencana, berlangsung pada
Januari 2022 – Februari 2022. Data yang digunakan data primer yaitu pasang surut,
Data sekunder meliputi data angin dan Sea Level Rise. Pengambilan data pasang surut
menggunakan alat tide gauge, metode pengolahan data pasang surut dilakukan
dengan metode Admiralty dan Least Square. Hasil penelitian menunjukkan nilai
HHWL 53.17 cm dan fomzahl metode Admiralty 8.49 cm dan nilai HHWL 593.08cm
dan formzahl Least Square 5.48 cm. Nilai DWL yang didapatkan yaitu 0.84 m. Root
Mean Square Error yang dihasilkan dari metode Least Square yaitu 17.80 cm.
Kata Kunci: Pasang surut, Admiralty, Least Square, DWL

ABSTRACT
Dwitya Rahma Suci. 26050118140073. Tidal Analysis in order to
Determine The Height Of the Pier. (Warsito Atmodjo & Heryoso setiyono)
The Timbulsloko waters is located in Sayung sub-district, Demak, these waters have sloping
topography and low elevation which making them vulnerable to tidal flooding due to the
impact of sea level rise. Timbulsloko is part of tidal circulation and ocean currents that
always change according to changing seasons. It is because the average height of the land
surface in Sayung sub-district is at the lowest low tide and highest tide level. The aim of
this research, which took place in January 2022 - February 2022, is to find out the formzahl
value and the value of the tidal harmonic component in Timbulsloko and also to determine
the design sea level value. The data that used as primary one is tidal wave and secondary
includes wind and sea level rise. The collecting of tide data is by using tide gauge while
data processing method is carried out by using Admiralty and Least Square methods. The
result of this research shows the value of HHWL is 53.17 cm and formzahl Admiralty
method is 8.49 cm while the value of HHWL is 593.08 cm and formzahl Least Square is
5.48 cm. The DWL value is 0.84 m. Root Mean Square Error which obtained from Least
Square method is 17.80 cm.
Keywords: Tidal, Admiralty, Least Square, DWL

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