TIDAL DATUM MODELING ANALYSIS OF ELLIPSOID, GEOID, AND MEAN SEA LEVEL HEIGHT REFERENCES ON THE NORTH COAST OF WEST JAVA

• Main Author: Satrio Nugroho, Jody
• Format: Final Project
• Language: Indonesia
• Subjects: Geografi matematis
• Online Access: https://digilib.itb.ac.id/gdl/view/83074
• Institution: Institut Teknologi Bandung

Indonesia is the largest archipelagic country in the world with a very extensive water area. This condition makes it necessary to use tide data as a reference for vertical height. Mean Sea Level is a vertical reference commonly used in Indonesia. As an institution authorized to provide vertical references, the Geospatial Information Agency continues to strive to build tide monitoring stations in all regions in Indonesia. The purpose of this research is to display visualization of tidal datum modeling in the form of tidal datum maps of Highest Astronomical Tide, Lowest Astronomical Tide, Mean High Water Spring, Mean Low Water Spring, and Mean Sea Level against reference heights of the ellipsoid, geoid, and Mean Sea Level on the North Coast of West Java. The method carried out in this research began with collecting secondary data in the form of tidal datum data. The data processing stage begins with masking the tidal datum data, continues with classifying natural breaks to determine tidal datum classes, and ends with layouting the tidal datum map. The results of this research are tidal datum maps of Highest Astronomical Tide, Lowest Astronomical Tide, Mean High Water Spring, Mean Low Water Spring, and Mean Sea Level against reference heights of the ellipsoid, geoid, and Mean Sea Level on the North Coast of West Java. The tidal datum modeling against the Mean Sea Level height reference has a value range of -1.18 – 1.01 m. The tidal datum modeling against the geoid height reference has a value range of -1.09 – 1.11 m. The tidal datum modeling against the ellipsoid height reference has a value range of 18.6 – 29.5 m.