Results 1 to 10 of about 6,962 (202)
SIRGAS reference frame analysis at DGFI–TUM [PDF]
The Deutsches Geodätisches Forschungsinstitut (DGFI) has been involved in the research activities of the Latin American Reference Frame SIRGAS since its establishment in 1993.
Sánchez Laura +3 more
doaj +6 more sources
Historical development of SIRGAS [PDF]
The Geodetic Reference System for the Americas (Sistema de Referencia Geodésico para las Américas, SIRGAS) was initiated in 1993 for South America at an international conference organised by the International Association of Geodesy (IAG), the Pan ...
Drewes Hermann
doaj +2 more sources
Quality control of SIRGAS ZTD products
The SIRGAS-CON network currently has more than 450 continuous GNSS stations, and it is used for geodetic purposes. In atmospheric studies, it is used for ionospheric monitoring and for the estimation of zenith tropospheric delays (ZTDs). From the Neutral
Mackern María Virginia +3 more
doaj +3 more sources
Primeros veinte años de SIRGAS
Se sintetizan los acontecimientos que jalonaron los primeros veinte años del “Sis- tema de Referencia Geocéntrico para las Américas” (SIRGAS), a la vez que se rinde un tributo a las instituciones y personalidades que los han hecho posibles.
Claudio Brunini, Laura Sánchez
doaj +4 more sources
Southern Perú coseismic subsidence: 23 June 2001 8.4-Mw earthquake [PDF]
The 23-June-2001 8.4-Mw magnitude earthquake partially filled the 1868-seismic-gap in southern Perú. This earthquake produced a thrust faulting dislocation with a rupture that started at about ~200 km SE from the 1996's Nazca earthquake epicenter ...
L. Ocola
doaj +3 more sources
Se cuantificaron las discrepancias en las coordenadas geocéntricas [X,Y,Z] obtenidas entre soluciones GPS procesadas en línea con el software del Canadian Space Reference System (CSRS) bajo la modalidad de Posicionamiento Puntal Preciso (PPP) y las ...
Jorge Moya Zamora
doaj +2 more sources
SIRGAS-WGIII activities for unifying height systems in Latin America
Since 1997 SIRGAS (Geocentric Reference System for the Americas) is acting for establishing a unified SIRGAS Vertical Reference System (SVRS) in Latin Ameri- ca and the Caribbean.
Silvio R.C. de Freitas
doaj +2 more sources
La oficialización del marco CR-SIRGAS implica la necesidad de transformar la información vinculada al marco anterior a esta nueva referencia nacional.
Jorge Moya Zamora +2 more
doaj +1 more source
Sistemas Geodésicos de Referência: Rumo ao GGRS/GGRF
O estabelecimento de Sistemas Geodésicos de Referência globais integrando características geométricas e físicas é um dos desafios atuais da Geodésia, principalmente devido às demandas de diversas áreas do conhecimento de que as informações relacionadas ...
Regiane Dalazoana +1 more
doaj +1 more source
A Terrestrial Reference Frame (TRF), coordinates and velocities for South American stations: contributions to Central Andes geodynamics [PDF]
Satellite positioning systems allow the fixing of the location of a point on the Earth's surface with very good precision and accuracy. To do this, however, it is necessary to determine the point coordinates taking account the reference system and the ...
M. V. Mackern +3 more
doaj +1 more source

