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ABSTRAKRegional Ocean Modeling System (ROMS) merupakan salah satu jenis pemodelan
yang dapat digunakan untuk memodelkan pasang surut pada wilayah regional
yang relatif luas. Tesis ini melakukan studi tentang pemodelan pasang surut
menggunakan ROMS untuk wilayah Indonesia dengan membagi menjadi 4 zona.
Data yang digunakan adalah data konstanta pasang surut dari TPXO tahun 2007
(TPXO7), data batimetri resolusi 1 menit dari etopo serta data dari World Ocean
Atlas Tahun 2009 (WOA09) berupa data temperatur, salinitas, serta densitas dari
kedalaman 0 hingga 5500 meter. Sebagai validator digunakan data pengamatan
pasang surut tahun 2013 dari stasiun pasang surut permanen milik Badan
Informasi Geospasial. Hasil pemodelan ini memiliki akurasi dan tingkat
kepercayaan yang baik untuk hampir di seluruh wilayah perairan NKRI dengan
nilai RMSE antara 9.4 cm hingga 24.4 cm namun hasil yang kurang baik didapat
pada perairan sekitar Merauke, Papua dengan nilai RMSE 62 cm.
ABSTRACTRegional Ocean Modeling System (ROMS) is one of the models that can be used
to simulate tidal regionally on relatively wide range area. Tidal modeling using
ROMS in this thesis were performed by dividing Indonesian region into 4
different zones. Harmonic constituent data from TPXO year 2007 (TPXO7),
Bathymetry data with 1 minute resolution from etopo, and World Ocean Atlas
data year 2009 such as; temperature, salinity, inner density depth of 0 ? 5500
meters were used as the model?s inputs. As the validators, Badan Informasi
Geospasial?s tidal observation data year 2013 from permanent tidal gauge stations
were used. The modeling result shows good accuracy and reliability in almost all
Indonesian water with RMSE between 9.4 ? 24.4 cm. However, bigger RMSE up
to 62 centimeters were found in Merauke water, Papua.;Regional Ocean Modeling System (ROMS) is one of the models that can be used
to simulate tidal regionally on relatively wide range area. Tidal modeling using
ROMS in this thesis were performed by dividing Indonesian region into 4
different zones. Harmonic constituent data from TPXO year 2007 (TPXO7),
Bathymetry data with 1 minute resolution from etopo, and World Ocean Atlas
data year 2009 such as; temperature, salinity, inner density depth of 0 – 5500
meters were used as the model’s inputs. As the validators, Badan Informasi
Geospasial’s tidal observation data year 2013 from permanent tidal gauge stations
were used. The modeling result shows good accuracy and reliability in almost all
Indonesian water with RMSE between 9.4 – 24.4 cm. However, bigger RMSE up
to 62 centimeters were found in Merauke water, Papua., Regional Ocean Modeling System (ROMS) is one of the models that can be used
to simulate tidal regionally on relatively wide range area. Tidal modeling using
ROMS in this thesis were performed by dividing Indonesian region into 4
different zones. Harmonic constituent data from TPXO year 2007 (TPXO7),
Bathymetry data with 1 minute resolution from etopo, and World Ocean Atlas
data year 2009 such as; temperature, salinity, inner density depth of 0 – 5500
meters were used as the model’s inputs. As the validators, Badan Informasi
Geospasial’s tidal observation data year 2013 from permanent tidal gauge stations
were used. The modeling result shows good accuracy and reliability in almost all
Indonesian water with RMSE between 9.4 – 24.4 cm. However, bigger RMSE up
to 62 centimeters were found in Merauke water, Papua.]