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Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

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Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

♦ RM ITUNIVERSITYDevelopment of a Precise Gravimetric Geoid Model for ArgentinaA thesis submitted in fulfilment of the requirements for the degree of

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina Master of Science in Geospatial SciencesDiego Alejandro PinonB. Surv. Eng.School of Mathematical and Geospatial SciencesCollege of Science Engineerin

g and HealthRMIT University42430DeclarationI certify that except where due acknowledgement has been made, the work is that of the author alone; the wo Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

rk has not been submitted previously. In whole or in part, to qualify for any other academic award: the content of the thesis is the result of work wh

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

ich has been carried out since the official commencement date of the approved research program: any editorial work, paid or unpaid, carried out by a t

♦ RM ITUNIVERSITYDevelopment of a Precise Gravimetric Geoid Model for ArgentinaA thesis submitted in fulfilment of the requirements for the degree of

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentinasy are to study the shape of the Earth, its gravity field and the geoid which is an equipotential surface closest to the mean sea level. Precise geoid

determination has been an important research topic in geodesy and geophysics in the past two decades. Scientists and government agencies all around t Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

he world have made great efforts on the development of high-accuracy geoid models. These geoid models are developed not only for scientific applicatio

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

ns, but also for other purposes such as serving for a reference surface for mapping, sea level monitoring and natural resources exploitation and manag

♦ RM ITUNIVERSITYDevelopment of a Precise Gravimetric Geoid Model for ArgentinaA thesis submitted in fulfilment of the requirements for the degree of

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentinae rapid development of GPS/GNSS technologies. Geoid models allow transforming ellipsoidal heights, which are relatively easily determined from GPS/GNS

S observations, into physical heights, which are associated to the Earth's gravity field, without the need for expensive and time-consuming spirit-lev Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

elling. Physical heights are used for mapping, engineering and civil engineering infrastructure since they indicate the flow direction of fluids, due

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

to the fact that fluids are attracted by the gravity of the Earth rather than geometric height differences.Moreover, vertical datums have been histori

♦ RM ITUNIVERSITYDevelopment of a Precise Gravimetric Geoid Model for ArgentinaA thesis submitted in fulfilment of the requirements for the degree of

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentinace topography effect, which is mainly caused by the sea dynamics and other meteorological processes, observations from different tide gauges do not co

mmonly coincide. Therefore, when vertical datums are separated by oceans or other bodies of water, direct methods such as spirit levelling and gravity Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

measurements are not applicable. In this case, geoid models can be used for unifying two or more vertical datums together.This research aims to devel

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

op a new and optimal precise geoid for Argentina using all available measurements from the most state of the art technologies and the latest global ge

♦ RM ITUNIVERSITYDevelopment of a Precise Gravimetric Geoid Model for ArgentinaA thesis submitted in fulfilment of the requirements for the degree of

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentinaM with 658,111 land and marine gravity observations were used for the new model determination. Several GGMs (e.g. EGM2008, GOC005S and EIGEN-6C4) were

evaluated to investigate the best GGM that fits Argentinian regional gravity field. Terrain corrections vjere calculated using a combination of the S Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

RTM_v4.1 and SRTM30_Plus vio DTMs for_ Pagei IAbstractall gravity observations. For the regions that lacked gravity observations, the DTU13 world grav

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

ity model was utilised for filling-in the gravity voids. The residual gravity anomalies were gridded by the Kriging method and the resultant grid was

♦ RM ITUNIVERSITYDevelopment of a Precise Gravimetric Geoid Model for ArgentinaA thesis submitted in fulfilment of the requirements for the degree of

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina. The accuracy of the new geoid was assessed by comparing its geoidal undulations over 1,904 benchmarks, which have both orthometric and ellipsoidal h

eights. Results showed that an accuracy of better than 10 centimetres has been achieved.AbstractI Page iiACKNOWLEDGEMENTSThis acknowledgement list sho Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

uld be quite long. It is probably more convenient to divide it into three: those who are experts in Geodesy or Geophysics, those who learned something

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

about my research throughout my Masters and those who do not have a clue about what I have accomplished during these last two and a half years.From t

♦ RM ITUNIVERSITYDevelopment of a Precise Gravimetric Geoid Model for ArgentinaA thesis submitted in fulfilment of the requirements for the degree of

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentinairection. I would like to express my profound gratitude to Sergio Cimbaro, President of the Institute Geografico Nacional (IGN), who not only provided

most of the datasets (or helped me to obtain them) and bent over backwards to assist me with all of my requests, but has been a constant source of su Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

pport and motivation over many years. I seriously enjoyed sharing all my research questions, concerns and outcomes with the IGN staff (in particular w

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

ith Demián, Ezequiel, Hernan, Gonzalo, Agustin, Tomás and Juan Carlos). I grew through my conversations with them all. Finally, I would like to acknow

♦ RM ITUNIVERSITYDevelopment of a Precise Gravimetric Geoid Model for ArgentinaA thesis submitted in fulfilment of the requirements for the degree of

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentinance.Regarding those who now understand the basics of the geoid model, I would like to thank my beloved Hayley for all her support during this quest. S

he probably learned about Geodesy as much as I did, or even more.From the last group of people who never understood what I was doing in my Masters, I Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

want to acknowledge all my Argentinean friends, for helping me to remember that there is another life beyond Geodesy, and my new Aussie friends, for p

Masters thesis of geospatial sciences development of a precise gravimetric geoid model for argentina

roviding me a rest after a long research day. Finally, I would like to thank my Australian family, for encouraging me and being positive always, and m

♦ RM ITUNIVERSITYDevelopment of a Precise Gravimetric Geoid Model for ArgentinaA thesis submitted in fulfilment of the requirements for the degree of

♦ RM ITUNIVERSITYDevelopment of a Precise Gravimetric Geoid Model for ArgentinaA thesis submitted in fulfilment of the requirements for the degree of