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Uncertainty of GRACE-borne long periodic and secular ice mass variations in Antarctica
https://orcid.org/0000-0003-2847-0605
Abstract Glacial ice mass balance of Antarctica can be observed by the twin satellites of the gravity recovery and climate experiment (GRACE). The gravity fields with monthly resolution enable efficient detection of annual, long periodic and secular variations. The present study delivers an error estimation of the long-periodic and secular variations by determining the linear trend of the observed surface mass anomaly series. Among the error sources, the error of the timing of the trend fitting, the error of the glacial isostatic adjustment correction, and the error of the atmospheric correction of the GRACE monthly solutions are discussed. The investigation concludes that apart from West Antarctica, Wilkes Land, Queen Maud Land and Enderby Land no reliable trend estimates of ice mass variation can be expected, thus any results should be treated with care.
Uncertainty of GRACE-borne long periodic and secular ice mass variations in Antarctica
https://orcid.org/0000-0003-2847-0605
Abstract Glacial ice mass balance of Antarctica can be observed by the twin satellites of the gravity recovery and climate experiment (GRACE). The gravity fields with monthly resolution enable efficient detection of annual, long periodic and secular variations. The present study delivers an error estimation of the long-periodic and secular variations by determining the linear trend of the observed surface mass anomaly series. Among the error sources, the error of the timing of the trend fitting, the error of the glacial isostatic adjustment correction, and the error of the atmospheric correction of the GRACE monthly solutions are discussed. The investigation concludes that apart from West Antarctica, Wilkes Land, Queen Maud Land and Enderby Land no reliable trend estimates of ice mass variation can be expected, thus any results should be treated with care.
Uncertainty of GRACE-borne long periodic and secular ice mass variations in Antarctica
https://orcid.org/0000-0003-2847-0605
Abstract Glacial ice mass balance of Antarctica can be observed by the twin satellites of the gravity recovery and climate experiment (GRACE). The gravity fields with monthly resolution enable efficient detection of annual, long periodic and secular variations. The present study delivers an error estimation of the long-periodic and secular variations by determining the linear trend of the observed surface mass anomaly series. Among the error sources, the error of the timing of the trend fitting, the error of the glacial isostatic adjustment correction, and the error of the atmospheric correction of the GRACE monthly solutions are discussed. The investigation concludes that apart from West Antarctica, Wilkes Land, Queen Maud Land and Enderby Land no reliable trend estimates of ice mass variation can be expected, thus any results should be treated with care.
Uncertainty of GRACE-borne long periodic and secular ice mass variations in Antarctica
Kiss, Annamária (Autor:in) / Földváry, Lóránt (Autor:in)
2016
Aufsatz (Zeitschrift)
Englisch
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Ice Mass Variation in Antarctica from GRACE Over 2002-2011
| Online Contents | 2016
Reducing leakage error in GRACE-observed long-term ice mass change: a case study in West Antarctica
| Online Contents | 2015
Reducing leakage error in GRACE-observed long-term ice mass change: a case study in West Antarctica
| Online Contents | 2015