Performance of different filters for determining temporal mass variations from GRACE in the Siberian permafrost region
Based on GRACE (Gravity Recovery and Climate Experiment) measurements, mass variations in different regions of the Earth can be determined with different temporal-spatial resolution. Permafrost in Siberia (Russia) is one of the challenging phenomena in the context of climate warming. Therefore, the...
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ftunivhannover:oai:www.repo.uni-hannover.de:123456789/4596 2023-07-16T04:00:26+02:00 Performance of different filters for determining temporal mass variations from GRACE in the Siberian permafrost region Shabanloui, Akbar Müller, Jürgen 2014-04-27 https://www.repo.uni-hannover.de/handle/123456789/4596 https://doi.org/10.15488/4554 eng eng München : European Geosciences Union http://dx.doi.org/10.15488/4554 https://www.repo.uni-hannover.de/handle/123456789/4596 Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. frei zugänglich Filter performance analyse Siberia permafrost GRACE Level 2 products Filter Performanceanalyse Siberian Permafrostgebiet GRACE Level 2 Produkte ddc:620 ddc:520 status-type:publishedVersion doc-type:ConferenceObject doc-type:Text 2014 ftunivhannover https://doi.org/10.15488/4554 2023-06-28T10:37:10Z Based on GRACE (Gravity Recovery and Climate Experiment) measurements, mass variations in different regions of the Earth can be determined with different temporal-spatial resolution. Permafrost in Siberia (Russia) is one of the challenging phenomena in the context of climate warming. Therefore, the precise estimation of temporal mass variations in this region based on the GRACE monthly solutions of different data analysis centres plays a key role to better understand the complex processes. Temporal mass variations in this region are mainly related to hydrological processes including thawing of permafrost layers. GRACE monthly gravity solutions suffer from the correlation of spherical harmonic coefficients (that causes stripping effects in North-South direction) and from less accuracy of the short wavelengths of the Earth’s gravitational representation coefficients. Therefore designing efficient filters for de-correlating Stokes coefficients is indispensable in the post-processing of GRACE monthly solutions. It should be mentioned, filters improve the resolution, but they also remove signal parts in the results. In this study, different filters (e.g. the Gaussian filters with different radii, DDK filters, etc.) are applied to the new Release 5 of the monthly gravity solutions from different analysis centres to extract mass variations in Siberia and consequently to help quantifying permafrost-related contributions. Conference Object permafrost Siberia Institutional Repository of Leibniz Universität Hannover |
institution |
Open Polar |
collection |
Institutional Repository of Leibniz Universität Hannover |
op_collection_id |
ftunivhannover |
language |
English |
topic |
Filter performance analyse Siberia permafrost GRACE Level 2 products Filter Performanceanalyse Siberian Permafrostgebiet GRACE Level 2 Produkte ddc:620 ddc:520 |
spellingShingle |
Filter performance analyse Siberia permafrost GRACE Level 2 products Filter Performanceanalyse Siberian Permafrostgebiet GRACE Level 2 Produkte ddc:620 ddc:520 Shabanloui, Akbar Müller, Jürgen Performance of different filters for determining temporal mass variations from GRACE in the Siberian permafrost region |
topic_facet |
Filter performance analyse Siberia permafrost GRACE Level 2 products Filter Performanceanalyse Siberian Permafrostgebiet GRACE Level 2 Produkte ddc:620 ddc:520 |
description |
Based on GRACE (Gravity Recovery and Climate Experiment) measurements, mass variations in different regions of the Earth can be determined with different temporal-spatial resolution. Permafrost in Siberia (Russia) is one of the challenging phenomena in the context of climate warming. Therefore, the precise estimation of temporal mass variations in this region based on the GRACE monthly solutions of different data analysis centres plays a key role to better understand the complex processes. Temporal mass variations in this region are mainly related to hydrological processes including thawing of permafrost layers. GRACE monthly gravity solutions suffer from the correlation of spherical harmonic coefficients (that causes stripping effects in North-South direction) and from less accuracy of the short wavelengths of the Earth’s gravitational representation coefficients. Therefore designing efficient filters for de-correlating Stokes coefficients is indispensable in the post-processing of GRACE monthly solutions. It should be mentioned, filters improve the resolution, but they also remove signal parts in the results. In this study, different filters (e.g. the Gaussian filters with different radii, DDK filters, etc.) are applied to the new Release 5 of the monthly gravity solutions from different analysis centres to extract mass variations in Siberia and consequently to help quantifying permafrost-related contributions. |
format |
Conference Object |
author |
Shabanloui, Akbar Müller, Jürgen |
author_facet |
Shabanloui, Akbar Müller, Jürgen |
author_sort |
Shabanloui, Akbar |
title |
Performance of different filters for determining temporal mass variations from GRACE in the Siberian permafrost region |
title_short |
Performance of different filters for determining temporal mass variations from GRACE in the Siberian permafrost region |
title_full |
Performance of different filters for determining temporal mass variations from GRACE in the Siberian permafrost region |
title_fullStr |
Performance of different filters for determining temporal mass variations from GRACE in the Siberian permafrost region |
title_full_unstemmed |
Performance of different filters for determining temporal mass variations from GRACE in the Siberian permafrost region |
title_sort |
performance of different filters for determining temporal mass variations from grace in the siberian permafrost region |
publisher |
München : European Geosciences Union |
publishDate |
2014 |
url |
https://www.repo.uni-hannover.de/handle/123456789/4596 https://doi.org/10.15488/4554 |
genre |
permafrost Siberia |
genre_facet |
permafrost Siberia |
op_relation |
http://dx.doi.org/10.15488/4554 https://www.repo.uni-hannover.de/handle/123456789/4596 |
op_rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. frei zugänglich |
op_doi |
https://doi.org/10.15488/4554 |
_version_ |
1771549192824553472 |