Evaluation of Ultra-High Degree Geopotential Models in Australia

Zhang, K.; Deakin, R.; Talbot, Nicholas C.; Edwards, Nicky

doi:10.1179/sre.2002.36.285.474

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…The statistical parameters considered in this work are the mean, the standard deviation of the differences between the geopotential models and tested data, and the smoothed covariance function necessary for all estimations by collocation technique. The most informative of these statistics is the standard deviation, because the mean of the differences is distorted by the exclusion of the zeroorder term (Zhang and Featherstone, 1995). The result obtained for the geopotential model comparison has showed that the OSU91A model fits best the BGI gravity data in Algeria (Benahmed Daho and Kahlouche, 2000).…”

Section: Geopotential Modelmentioning

confidence: 99%

Precision assessment of the orthometric heights determination in northern part of Algeria by combining the GPS data and the local geoid model

Daho

2009

Comptes Rendus. Géoscience

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Section: Geopotential Modelmentioning

confidence: 99%

Precision assessment of the orthometric heights determination in northern part of Algeria by combining the GPS data and the local geoid model

Daho

2009

Comptes Rendus. Géoscience

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“…33 Whilst old geopotential models derived up to degree and order 70 can resolve spatial features (geoid computation) at a half wavelength of about 290 km, models (particularly the most recent) computed up to degree and order 360 can resolve spatial features down to 55 km. 34 Early evaluations of gravity field models by Zhang and Featherstone 35 reported that the OSU91A geopotential model provided better fits to the gravity field over the Australian region than did prior models.…”

Section: Improvements In Gravity Field Modelsmentioning

confidence: 99%

Global geopotential models from Satellite Laser Ranging data with geophysical applications: A review

Botai

Combrinck

2012

S Afr J Sci

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The launch of artificial satellites (as early as in 1957), specifically the launch of the first laser tracked satellite, Beacon-B, in 1964, has provided data sets which have allowed researchers to probe the long to medium components of the gravitational field of the Earth. In particular, observational data recorded at satellite laser ranging tracking stations have since been used to develop models that quantify the global long-wavelength and medium-wavelength gravity field of the Earth. Currently, literature reviewing gravity field models with geophysical applications is scarce and not up to date. The most recent review paper was published more than a decade ago. In the interim, there has been an unprecedented increase in gravity field modelling, which can be attributed to the deployment of new and dedicated satellite missions. As a result, a number of existing geopotential models have been improved and new models have been developed. Each of these models differs in accuracy and spatial-temporal scale. This review extends the earlier review of gravity field models, by incorporating up-to-date research efforts in geopotential modelling with geophysical applications in oceanography, hydrology, geodesy and solid Earth science.

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Evaluation of Ultra-High Degree Geopotential Models in Australia

Cited by 2 publications

References 12 publications

Precision assessment of the orthometric heights determination in northern part of Algeria by combining the GPS data and the local geoid model

Precision assessment of the orthometric heights determination in northern part of Algeria by combining the GPS data and the local geoid model

Global geopotential models from Satellite Laser Ranging data with geophysical applications: A review

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