Publication Date:
2021-01-11
Description:
Recently, there has been an increased interest in studying and defining the Local and Regional Geoid Model worldwide,
due to its importance in geodetic and geophysics applications.The use of the Global Positioning System (GPS)
is internationally growing, yet the lack of a Geoid Model for Jordan has limited the use of GPS for the geodetic applications
in the country. This work aims to present the preliminary results that we propose for «The Gravimetric Jordanian
Geoid Model (GeoJordan)». The model is created using gravimetric data and the GRAVSOFT program. The
model is validated using GPS and precise level measurements in the Amman area. Moreover, we present a comparison
using the Global Geopotential Model OSU91A and the EGM96 Model and the results showed great discrepancies.
We also present the approach used to obtain the orthometric height from GPS ellipsoidal height measurements.
We found that the error margin obtained in this work of the GeoJordan after fitting the data with GPS/leveling measurements
is about (10 cm) in the tested area whereas the standard error of the created model is about (40 cm).
Description:
JCR Journal
Description:
open
Keywords:
Gravimetric Jordanian Geoid Model (GeoJordan)
;
Least Square Collocation (LSC)
;
Global Geopotential Model (GGM)
;
Global Positioning System (GPS)
;
undulation (N)
;
04. Solid Earth::04.02. Exploration geophysics::04.02.02. Gravity methods
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
