External calibration of GOCE accelerations to improve derived gravitational gradients
نویسندگان
چکیده
منابع مشابه
External calibration of GOCE accelerations to improve derived gravitational gradients
The aim of ESA's satellite mission GOCE is to determine the Earth's gravity field with high accuracy and resolution. To achieve this aim, GOCE carries a gravitational gradiometer that needs calibration. Existing global gravity fieldmodels in combinationwith GOCE star sensor data may be used to synthesize reference differential accelerations with which the common and differential accelerations, ...
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GOCE will be the first satellite ever to measure the second order derivatives of the Earth’s gravitational potential in space. With these measurements it is possible to derive a high accuracy and resolution gravitational field if systematic errors and/or outliers have been removed to the extent possible from the data. It is necessary to detect as many outliers as possible in the data pre-proces...
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Mehdi Eshagh 1, Matloob Hussain 1,2, Robert Tenzer 3,4,* and Mohsen Romeshkani 5 1 Department of Engineering Science, University West, Trollhättan 46186, Sweden; [email protected] (M.E.); [email protected] (M.H.) 2 Department of Earth Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan 3 The Key Laboratory of Geospace Environment and Geodesy, Wuhan University, Wuhan 430079, China ...
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Numerous global gravitational field models have been derived from the GOCE satellite gravitational gradiometry mission. They differ by the harmonic analysis approach and the time span covered by the measurements. The quality of individual solutions is assessed by validating the global gravitational field models with respect to independent datasets. Global gravitational field models based on the...
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ژورنال
عنوان ژورنال: Journal of Geodetic Science
سال: 2011
ISSN: 2081-9943,2081-9919
DOI: 10.2478/v10156-010-0014-3