Using advanced soft computing techniques for regional shoreline geoid model estimation and evaluation

MR Kaloop, M Rabah, JW Hu, A Zaki - Marine Georesources & …, 2018 - Taylor & Francis
This study aims at evaluating the global geoid model for a regional shoreline fitting using
advanced soft computing techniques and global navigation satellite system/leveling …

Combining Global Geopotential Models, Digital Elevation Models, and GNSS/Leveling for Precise Local Geoid Determination in Some Mexico Urban Areas: Case …

N Alcantar-Elizondo, RV Garcia-Lopez… - … International Journal of …, 2021 - mdpi.com
This work shows improvements of geoid undulation values obtained from a high-resolution
Global Geopotential Model (GGM), applied to local urban areas. The methodology …

Application of neural network technique to determine a corrector surface for global geopotential model using GPS/levelling measurements in Egypt

HT Elshambaky - Journal of applied geodesy, 2018 - degruyter.com
Owing to the appearance of many global geopotential models, it is necessary to determine
the most appropriate model for use in Egyptian territory. In this study, we aim to investigate …

[PDF][PDF] Assessment of GOCE models in Egypt

A Abd-Allah - 2015 - researchgate.net
This thesis attempts to answer the question: What is the accuracy of GOCE satelliteonly
global geopotential models in Egypt? The answer of this question is included in two steps …

Estimation of orthometric height using EGM2008 and GPS over Nairobi county and its environs

KE Kemboi, PA Odera - Journal of Agriculture, Science and Technology, 2016 - ajol.info
Abstract Global Navigation Satellite Systems (GNSS) have been used widely in 3-
dimensional positioning globally, regionally and locally. Global Positioning System (GPS) is …

[PDF][PDF] On the contribution of dedicated gravity satellite missions to the modelling of the Earth gravity field‒A case study of Ethiopia and Uganda in East Africa

W Godah, AA Gedamu, TB Bedada - Geoinformation Issues, 2018 - bc.igik.edu.pl
Since the first decade of this millennium, the three dedicated gravity satellite missions
(DGSMs): CHAMP (Challenging Minisatellite Payload), GRACE (Gravity Recovery and …

以大地水準面和平均海水面建構臺灣海陸垂直基準

WH Huang - 2022 - search.proquest.com
摘要目前臺灣的陸地高程基準與海洋深度基準未統一, 造成海陸交界處基準面無法銜接,
而不同的垂直基準造成沿海地區數據整合及分析技術上形成相當大的挑戰, 因此本研究將面對此 …

Using GIS-based digital raster analysis for improving harmonic models-derived geoidal heights

RMK Hassouna, FFF Asal - Applied Geomatics, 2016 - Springer
In this study, the GIS-based raster analysis principle was applied as a trial to enhance the
local performance of geopotential models. Specifically, harmonic models-derived geoidal …

Impact of Nasser Lake on gravity reduction and geoidal heights for Egypt

HA Abd-Elmotaal, A Makhloof, A Hassan… - NRIAG Journal of …, 2018 - Taylor & Francis
In the course of the IAG African Geoid Project, it is needed to study the impact of the lakes on
the gravity reduction and geoidal heights. The aim of this paper is to study the impact of the …

The Power of Likelihood Ratio Test for A Change‐Point in Binomial Distribution

SM Mundia, AW Gichuhi, JM Kihoro - Journal of Agriculture, Science And …, 2014 - ajol.info
Statistically, change point is the location or the time point such that observations follow one
distribution up to the point and then another afterwards. Change point problems are …