SGOTL: A Computer Program for Modeling High-Resolution, Height-Dependent Gravity Effect of Ocean Tide Loading

SGOTL, a computer package coded in FORTRAN, has been developed to model the gravity effect due to ocean tide loading (OTL), especially for a coastal station with large ocean tides. SGOTL uses a regional and a global tide model to account separately for near (inner) and far (outer) zone contributions...

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Main Author: Cheinway Hwang Jiu-Fu Huang
Format: Article
Language:English
Published: Springer 2012-01-01
Series:Terrestrial, Atmospheric and Oceanic Sciences
Subjects:
Online Access: http://tao.cgu.org.tw/images/attachments/v232p219.pdf
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author Cheinway Hwang Jiu-Fu Huang
author_facet Cheinway Hwang Jiu-Fu Huang
author_sort Cheinway Hwang Jiu-Fu Huang
collection DOAJ
description SGOTL, a computer package coded in FORTRAN, has been developed to model the gravity effect due to ocean tide loading (OTL), especially for a coastal station with large ocean tides. SGOTL uses a regional and a global tide model to account separately for near (inner) and far (outer) zone contributions, and optimizes an inner-zone region and grid interval for numerical convolution. Height dependent Green¡¦s functions for Newtonian and elastic effects are developed. The coastline is defined by the full-resolution GMT shoreline, and optionally a digital elevation model (DEM). A case study using gravity observations at the Hsinchu superconducting gravity station and some offshore islands around the Taiwan Strait suggests that SGOTL outperforms some selected global OTL programs and achieves an accuracy of 0.1 μGal for 8 leading tidal constituents.
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spelling doaj.art-1f50a3f2ca2845d9a7f41aca4e51fd2c2022-12-22T03:01:48ZengSpringerTerrestrial, Atmospheric and Oceanic Sciences1017-08392311-76802012-01-0123221910.3319/TAO.2011.10.06.02(Oc)1064SGOTL: A Computer Program for Modeling High-Resolution, Height-Dependent Gravity Effect of Ocean Tide LoadingCheinway Hwang Jiu-Fu HuangSGOTL, a computer package coded in FORTRAN, has been developed to model the gravity effect due to ocean tide loading (OTL), especially for a coastal station with large ocean tides. SGOTL uses a regional and a global tide model to account separately for near (inner) and far (outer) zone contributions, and optimizes an inner-zone region and grid interval for numerical convolution. Height dependent Green¡¦s functions for Newtonian and elastic effects are developed. The coastline is defined by the full-resolution GMT shoreline, and optionally a digital elevation model (DEM). A case study using gravity observations at the Hsinchu superconducting gravity station and some offshore islands around the Taiwan Strait suggests that SGOTL outperforms some selected global OTL programs and achieves an accuracy of 0.1 μGal for 8 leading tidal constituents. http://tao.cgu.org.tw/images/attachments/v232p219.pdf Absolute gravityOcean tide loadingSGOTLSuperconducting gravityTaiwan
spellingShingle Cheinway Hwang Jiu-Fu Huang
SGOTL: A Computer Program for Modeling High-Resolution, Height-Dependent Gravity Effect of Ocean Tide Loading
Terrestrial, Atmospheric and Oceanic Sciences
Absolute gravity
Ocean tide loading
SGOTL
Superconducting gravity
Taiwan
title SGOTL: A Computer Program for Modeling High-Resolution, Height-Dependent Gravity Effect of Ocean Tide Loading
title_full SGOTL: A Computer Program for Modeling High-Resolution, Height-Dependent Gravity Effect of Ocean Tide Loading
title_fullStr SGOTL: A Computer Program for Modeling High-Resolution, Height-Dependent Gravity Effect of Ocean Tide Loading
title_full_unstemmed SGOTL: A Computer Program for Modeling High-Resolution, Height-Dependent Gravity Effect of Ocean Tide Loading
title_short SGOTL: A Computer Program for Modeling High-Resolution, Height-Dependent Gravity Effect of Ocean Tide Loading
title_sort sgotl a computer program for modeling high resolution height dependent gravity effect of ocean tide loading
topic Absolute gravity
Ocean tide loading
SGOTL
Superconducting gravity
Taiwan
url http://tao.cgu.org.tw/images/attachments/v232p219.pdf
work_keys_str_mv AT cheinwayhwangjiufuhuang sgotlacomputerprogramformodelinghighresolutionheightdependentgravityeffectofoceantideloading