Details
| Original language | English |
|---|---|
| Pages (from-to) | 54-60 |
| Number of pages | 7 |
| Journal | Physics and chemistry of the earth |
| Volume | 53-54 |
| Publication status | Published - 15 Dec 2010 |
Abstract
Since 2002 the GRACE satellite mission provides monthly solutions of the Earth's gravity field reflecting mass variations on various spatial and temporal scales. The glacial isostatic adjustment (GIA)-induced trend signal in Fennoscandia can be obtained with a spatial resolution of about 300-400. km. Moreover, since 2003 the Institut für Erdmessung has carried out absolute gravity (AG) measurements in Fennoscandia in close cooperation with the Scandinavian partners. From the AG data, point-wise mass variations at the AG sites have been determined including the GIA-induced trend signal. For direct comparison of those point values with regional results from GRACE, vertical movements of the sites have been considered using rates determined from permanent GPS measurements. The various results for GIA-related effects agree well near the uplift center, although the different raw data contain different signal contributions. In a final step, we combine the AG trend values (including GPS rates) and the GRACE results to obtain a data-based solution of the present-day secular mass variation in Fennoscandia.Here, we present results of the individual techniques as well as the combined solution, where we also discuss possible errors sources.
Keywords
- Absolute gravimetry, Data combination, Fennoscandian land uplift, Glacial isostatic adjustment, GRACE
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geophysics
- Earth and Planetary Sciences(all)
- Geochemistry and Petrology
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In: Physics and chemistry of the earth, Vol. 53-54, 15.12.2010, p. 54-60.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A land uplift model in Fennoscandia combining GRACE and absolute gravimetry data
AU - Müller, Jürgen
AU - Naeimi, Majid
AU - Gitlein, Olga
AU - Timmen, Ludger
AU - Denker, Heiner
N1 - Funding information: The research has been supported by the German Research Foundation (DFG) through the research Grants MU1141/3-1, 3-2, and 3-3 as well as MU 1141/8-1. Parts of the work have been funded by the center of excellence Quantum Engineering and Space-Time Research (QUEST).
PY - 2010/12/15
Y1 - 2010/12/15
N2 - Since 2002 the GRACE satellite mission provides monthly solutions of the Earth's gravity field reflecting mass variations on various spatial and temporal scales. The glacial isostatic adjustment (GIA)-induced trend signal in Fennoscandia can be obtained with a spatial resolution of about 300-400. km. Moreover, since 2003 the Institut für Erdmessung has carried out absolute gravity (AG) measurements in Fennoscandia in close cooperation with the Scandinavian partners. From the AG data, point-wise mass variations at the AG sites have been determined including the GIA-induced trend signal. For direct comparison of those point values with regional results from GRACE, vertical movements of the sites have been considered using rates determined from permanent GPS measurements. The various results for GIA-related effects agree well near the uplift center, although the different raw data contain different signal contributions. In a final step, we combine the AG trend values (including GPS rates) and the GRACE results to obtain a data-based solution of the present-day secular mass variation in Fennoscandia.Here, we present results of the individual techniques as well as the combined solution, where we also discuss possible errors sources.
AB - Since 2002 the GRACE satellite mission provides monthly solutions of the Earth's gravity field reflecting mass variations on various spatial and temporal scales. The glacial isostatic adjustment (GIA)-induced trend signal in Fennoscandia can be obtained with a spatial resolution of about 300-400. km. Moreover, since 2003 the Institut für Erdmessung has carried out absolute gravity (AG) measurements in Fennoscandia in close cooperation with the Scandinavian partners. From the AG data, point-wise mass variations at the AG sites have been determined including the GIA-induced trend signal. For direct comparison of those point values with regional results from GRACE, vertical movements of the sites have been considered using rates determined from permanent GPS measurements. The various results for GIA-related effects agree well near the uplift center, although the different raw data contain different signal contributions. In a final step, we combine the AG trend values (including GPS rates) and the GRACE results to obtain a data-based solution of the present-day secular mass variation in Fennoscandia.Here, we present results of the individual techniques as well as the combined solution, where we also discuss possible errors sources.
KW - Absolute gravimetry
KW - Data combination
KW - Fennoscandian land uplift
KW - Glacial isostatic adjustment
KW - GRACE
UR - http://www.scopus.com/inward/record.url?scp=84865286981&partnerID=8YFLogxK
U2 - 10.1016/j.pce.2010.12.006
DO - 10.1016/j.pce.2010.12.006
M3 - Article
AN - SCOPUS:84865286981
VL - 53-54
SP - 54
EP - 60
JO - Physics and chemistry of the earth
JF - Physics and chemistry of the earth
SN - 1474-7065
ER -