دورية أكاديمية
Preliminary study of marine geoid model in the Argentinean Atlantic Ocean ; ESTUDIO PRELIMINAR DE GEOIDE MARINO EN EL OCÉANO ATLÁNTICO ARGENTINO
| العنوان: | Preliminary study of marine geoid model in the Argentinean Atlantic Ocean ; ESTUDIO PRELIMINAR DE GEOIDE MARINO EN EL OCÉANO ATLÁNTICO ARGENTINO |
|---|---|
| المؤلفون: | Tocho, Cláudia, Vergos, George, Sideris, Michael G. |
| المصدر: | Boletim de Ciências Geodésicas; v. 13, n. 1 (2007) ; Bulletin of Geodetic Sciences; v. 13, n. 1 (2007) ; 1982-2170 ; 1413-4853 |
| بيانات النشر: | Boletim de Ciências Geodésicas Bulletin of Geodetic Sciences |
| سنة النشر: | 2007 |
| مصطلحات موضوعية: | marine geoid, altimetric geoid, gravimetric geoid, combined geoid, sea surface heights, heterogeneous data, geoide marino, geoide altimétrico, geoide gravimétrico, geoide combinado altura instantánea de la superficie del mar, datos heterogéneos |
| الوصف: | The objective of this paper is to present the studies conducted for the determinationof marine geoid model in the Atlantic coastal region of Argentina using satellitealtimetry and shipborne gravity data. The altimetry data of the satellite altimetrymission ERS1 and shipborne gravity data were used to compute a pure altimetricgeoid and a pure gravimetric geoid, respectively using the well known removerestoretechnique. The effect of the Quasi-Stationary Sea Surface Topography(QSST) and the effect of the Sea Surface Variability (SSV)were taken into accountduring the processing of the different solutions. From the results achieved it wasconcluded that the pure altimetric geoid has an accuracy of near 8 cm in someareas, while the pure gravimetric solution gives poorer results. The accuracy of thefinal geoid models was assessed through comparisons with stackedTOPEX/POSEIDON (T/P) SSHs, known for their high precision. In order toimprove the accuracy of the gravimetric geoid, a combined solution using theMultiple input –Multiple output system theory , known as MIMOST were used.MIMOST allow to combine heterogeneous data in the spectral domain. Thecombination of satellite and shipborne data with the proposed algorithm improvesthe accuracy of the gravimetric geoid model by about 2 cm. ; En este trabajo se presentan estudios realizados sobre la determinación de geoidesmarinos preliminares en el océano Atlántico próximo a Argentina, utilizando datosde altimetría satelital y datos de gravedad marina. Los datos correspondientes a lamisión espacial de altimetría satelital ERS1 y los datos de gravedad medidos enbarco permitieron determinar un geoide altimétrico puro y un geoide gravimétricopuro en el océano Atlántico argentino utilizando la técnica remover-restaurar. Elefecto de la componente casi estacionaria de la topografía del mar (QSST) y elefecto de la variabilidad de la superficie del mar (SSV) se tuvieron en cuentadurante el procesamiento de las diferentes soluciones. De los resultados obtenidos,se concluye que el geoide ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | Portuguese |
| العلاقة: | https://revistas.ufpr.br/bcg/article/view/8242/5761Test; https://revistas.ufpr.br/bcg/article/view/8242Test |
| الإتاحة: | https://revistas.ufpr.br/bcg/article/view/8242Test |
| رقم الانضمام: | edsbas.B76BE29D |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |