Determination of altitudes of the three main Ecuadorian summits through GNSS positioning  

作　　者：Maria Jose Merizalde Mora Cesar Alberto Leiva Gonzalez Dennys Alexander Enriquez Hidalgo Theofilos Toulkeridis 

机构地区：[1]Universidad de Las Fuerzas Armadas ESPE,Sangolqui,Ecuador [2]Instituto Geografico Militar IGM,Quito,Ecuador [3]Universidad de Especialidades Turisticas UDET,Quito,Ecuador

出　　处：《Geodesy and Geodynamics》2022年第4期343-351,共9页大地测量与地球动力学（英文版）

摘　　要：Determining the altitude of mountains is one of the most fundamental challenges for humankind.Therefore,the main objective of the study is to determine the altitudes of the three main summits in Ecuador through GNSS positioning,referring to the official vertical datum of Ecuador and the geo-potential surface(W_(o)).The three peaks are active volcanoes named Chimborazo,Cotopaxi and Cayambe,all of which are known to be over 5700 m above sea level.Positioning GNSS was performed on the summit of the volcanoes,and the GPS leveling method was applied on nearby plates.At these summits,the correction of the potential difference between the mean sea level and W_(o) was used.The altitudes referred to the mean sea level were compared with other registered heights,and the results are more accurate than previous geodetic missions.

关 键 词：ALTITUDE Volcanoes GNSS GPS leveling GEOPOTENTIAL 

分 类 号：P228.4[天文地球—大地测量学与测量工程]