Results 11 to 20 of about 122,694 (252)

On the connection of the Ecuadorian Vertical Datum to the IHRS

Journal of Geodetic Science, 2023
In this work, the determination of the discrepancy between the Ecuadorian Vertical Datum (EVD) and the International Height Reference System (IHRS) is presented.
Carrión José L., de Freitas Sílvio R. Correia, Barzaghi Riccardo   +2 more
doaj   +1 more source

Age of pubertal height growth spurt in children and adolescents from Huila, Colombia

Revista de la Facultad de Medicina, 2023
Introduction: It has been reported that the height of children and adolescents (2-18 years) from Huila-Colombia is below the international reference values described by the Centers for Disease Control and Prevention (CDC) and the World Health ...
José David López-Laiseca, Luís Miguel Massuça   +1 more
doaj   +1 more source

A contribution for the study of RTM effect in height anomalies at two future IHRS stations in Brazil using different approaches, harmonic correction, and global density model

Journal of Geodetic Science, 2022
The high-frequency effects of the gravity field can be obtained from residual terrain modeling (RTM) technique. However, for the International height reference system (IHRS), this is an open problem.
Rodrigues Tiago Lima
doaj   +1 more source

Unification of a Global Height System at the Centimeter-Level Using Precise Clock Frequency Signal Links

Remote Sensing, 2023
The International Association of Geodesy (IAG) aims to establish the International Height Reference System (IHRS) as one of its primary scientific objectives. Central to the realization of the IHRS is global vertical datum unification, which requires the
Ziyu Shen, Wenbin Shen, Shuangxi Zhang, C. K. Shum, Tengxu Zhang, Lin He, Zhan Cai, Si Xiong, Lingxuan Wang   +8 more
doaj   +1 more source

Prevalence of thinness, overweight, obesity and central obesity in Finnish school-aged children: a comparison of national and international reference values

Obesity Facts, 2021
Introduction: The global epidemic of obesity concerns children, and monitoring the prevalence is of highest priority. Body mass index (BMI) with age- and sex-specific cut-off values determine weight status in children, although multiple reference systems
Catharina Sarkkola, Jannina Viljakainen, Rejane Augusta de Oliveira Figueiredo, Antti Saari, Sohvi Lommi, Elina Engberg, Heli Viljakainen   +6 more
doaj   +1 more source

Vertical datum unification for the International Height Reference System (IHRS) [PDF]

Geophysical Journal International, 2017
The International Association of Geodesy released in July 2015 a resolution for the definition and realisation of an International Height Reference System (IHRS). According to this resolution, the IHRS coordinates are potential differences referring to the equipotential surface of the Earth's gravity field realised by the conventional value W0 = 62 636
Laura Sánchez, Michael G. Sideris
openaire   +1 more source

Towards an International Height Reference System: insights from the Colorado geoid experiment using AUSGeoid computation methods [PDF]

Journal of Geodesy, 2020
We apply the AUSGeoid data processing and computation methodologies to data provided for the International Height Reference System (IHRS) Colorado experiment as part of the International Association of Geodesy Joint Working Groups 0.1.2 and 2.2.2. This experiment is undertaken to test a range of different geoid computation methods from international ...
S. J. Claessens, M. S. Filmer
openaire   +2 more sources

Retrieval of Electron Density Profile for KOMPSAT-5 GPS Radio Occultation [PDF]

Journal of Astronomy and Space Sciences, 2007
The AOPOD (Atmosphere Occultation and Precision Orbit Determination) system, the secondary payload of KOMPSAT (KOrea Multi-Purpose SATellite)-5 scheduled to be launched in 2010, shall provide GPS radio occultation data.
Woo-Kyoung Lee, Jong-Kyun Chung, Sungki Cho, Jong-Uk Park, Jung-Ho Cho, Jae-Cheol Yoon, Jin Ho Lee, Yong-Sik Chun, Sang-Ryul Lee   +8 more
doaj   +1 more source

Determination of the height of Mount Everest using the shallow layer method

Geodesy and Geodynamics, 2021
Shallow layer method (SLM) based on the definition of the geoid can determine the gravity field inside the shallow layer. In this study, the orthometric height of Mount Everest (HME) is calculated based on SLM, in which the key is to construct the ...
Youchao Xie, Wenbin Shen, Jiancheng Han, Xiaole Deng   +3 more
doaj   +1 more source

Transformation of the local Greenlandic and Danish height systems to the International Height Reference Frame

, 2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Teitsson, H., Sanchez, L., Forsberg, R.
openaire   +2 more sources