Effect of antenna snow intrusion on vertical GPS position time series in Antarctica
Effect of antenna snow intrusion on vertical GPS position time series in Antarctica
复制标题
南极洲天线积雪入侵对垂直GPS位置时间序列的影响
DOI:
10.1007/s00190-020-01403-6
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发表时间:
2020
影响因子:
4.4
通讯作者:
Koulali A
中科院分区:
文献类型:
--
作者:
Koulali A
Vertical surface displacements from continuous Global Positioning System (GPS) stations often show strong seasonal signals, which in some cases may be associated with surface mass loading, including hydrological, and non-tidal oceanic and atmospheric loading. In Antarctica, many GPS stations show vertical motions in phase with seasonal snow accumulation changes, but these variations cannot be fully explained with snow load variations between seasons. Instead we show, for many sites in Antarctica, that a significant component of the annual cycle in vertical GPS coordinates time series may be related to snow/ice inside antennas causing as an artefact apparent seasonal variation, with amplitudes of up to 4 mm. We present a method based on the Empirical Mode Decomposition (EMD) algorithm to remove this artefact signal. The corrected GPS time series show an improvement in the agreement with displacements predicted by elastic modelling using GRACE-derived surface mass loads.
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DOI:
10.1029/2009jb006543
发表时间:
2009-12
期刊:
Journal of Geophysical Research: Solid Earth
影响因子:
--
作者:
Matt A. King;C. Watson
通讯作者:
Matt A. King;C. Watson
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
D. Saddler;T. Wilson;M. Bevis;R. Smalley;I. Dalziel;P. Matheny;S. Konfal;D. Gómez;E. Kendrick
通讯作者:
E. Kendrick
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
K. Kochanski
通讯作者:
K. Kochanski
影响因子:
5.2
作者:
P. Gegout;J. Boy;J. Hinderer;G. Ferhat
通讯作者:
G. Ferhat
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
Kyle O’Keefe;J. Stephen;G. Lachadelle;R. A. Gonzales
通讯作者:
R. A. Gonzales