Local hydrological effects on gravity at Metsähovi, Finland: Implications for comparing observations by the superconducting gravimeter with global hydrological models and with GRACE

Jaakko Mäkinen; Tero Hokkanen; Heikki Virtanen; Arttu Raja-Halli; Risto P. Mäkinen

doi:10.1007/978-3-319-10837-7_35

Local hydrological effects on gravity at Metsähovi, Finland: Implications for comparing observations by the superconducting gravimeter with global hydrological models and with GRACE

Jaakko Mäkinen^*, Tero Hokkanen, Heikki Virtanen, Arttu Raja-Halli, Risto P. Mäkinen

^*Tämän työn vastaava kirjoittaja

Rakennustekniikan laitos

Finnish Geodetic Institute

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Conference contribution › Scientific › vertaisarvioitu

4 Sitaatiot (Scopus)

Abstrakti

We construct a model for the influence of variation in local water storage on the observations of the superconducting gravimeter (SG) T020 in Metsähovi, Finland. The following hydrological components are accounted for: (1) soilmoisture and groundwater in sediments, (2) groundwater in the fractures of the crystalline bedrock, (3) snow on the ground, and (4) snow on the laboratory roof. We show that due to the geometry of the local storage, its gravity influence at the SG is only a fraction of the influence of the corresponding Bouguer sheet, and discuss the implications for comparing the SG with variation in gravity observed with GRACE. We compare the SG residuals with the variation in gravity predicted from the local model and two models of continental water storage. The general patterns are similar but there are differences in amplitude and phase. Further research is outlined.

Alkuperäiskieli	Englanti
Otsikko	Gravity, Geoid and Height Systems - IAG Symposium GGHS2012, Proceedings
Kustantaja	Springer
Sivut	275-281
Sivumäärä	7
Vuosikerta	141
ISBN (elektroninen)	9783319108360
DOI - pysyväislinkit	https://doi.org/10.1007/978-3-319-10837-7_35
Tila	Julkaistu - 2014
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisussa
Tapahtuma	International Association of Geodesy Symposia: Gravity, Geoid and Height Systems - Venice, Italia Kesto: 9 lokak. 2012 → 12 lokak. 2012

Conference

Conference	International Association of Geodesy Symposia
Lyhennettä	GGHS
Maa/Alue	Italia
Kaupunki	Venice
Ajanjakso	09/10/2012 → 12/10/2012

Pääsy asiakirjaan

10.1007/978-3-319-10837-7_35

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Mäkinen, J., Hokkanen, T., Virtanen, H., Raja-Halli, A., & Mäkinen, R. P. (2014). Local hydrological effects on gravity at Metsähovi, Finland: Implications for comparing observations by the superconducting gravimeter with global hydrological models and with GRACE. teoksessa Gravity, Geoid and Height Systems - IAG Symposium GGHS2012, Proceedings (Vuosikerta 141, Sivut 275-281). Springer. https://doi.org/10.1007/978-3-319-10837-7_35

@inproceedings{016e00eae0344c4a9288614dd98e8355,

title = "Local hydrological effects on gravity at Mets{\"a}hovi, Finland: Implications for comparing observations by the superconducting gravimeter with global hydrological models and with GRACE",

abstract = "We construct a model for the influence of variation in local water storage on the observations of the superconducting gravimeter (SG) T020 in Mets{\"a}hovi, Finland. The following hydrological components are accounted for: (1) soilmoisture and groundwater in sediments, (2) groundwater in the fractures of the crystalline bedrock, (3) snow on the ground, and (4) snow on the laboratory roof. We show that due to the geometry of the local storage, its gravity influence at the SG is only a fraction of the influence of the corresponding Bouguer sheet, and discuss the implications for comparing the SG with variation in gravity observed with GRACE. We compare the SG residuals with the variation in gravity predicted from the local model and two models of continental water storage. The general patterns are similar but there are differences in amplitude and phase. Further research is outlined.",

keywords = "Continental water storage, GRACE, Groundwater, Hydrology, Snow, Soil moisture, Superconducting gravimeter",

author = "Jaakko M{\"a}kinen and Tero Hokkanen and Heikki Virtanen and Arttu Raja-Halli and M{\"a}kinen, {Risto P.}",

year = "2014",

doi = "10.1007/978-3-319-10837-7_35",

language = "English",

volume = "141",

pages = "275--281",

booktitle = "Gravity, Geoid and Height Systems - IAG Symposium GGHS2012, Proceedings",

publisher = "Springer",

address = "Germany",

note = "International Association of Geodesy Symposia : Gravity, Geoid and Height Systems, GGHS ; Conference date: 09-10-2012 Through 12-10-2012",

}

Mäkinen, J, Hokkanen, T, Virtanen, H, Raja-Halli, A & Mäkinen, RP 2014, Local hydrological effects on gravity at Metsähovi, Finland: Implications for comparing observations by the superconducting gravimeter with global hydrological models and with GRACE. julkaisussa Gravity, Geoid and Height Systems - IAG Symposium GGHS2012, Proceedings. Vuosikerta 141, Springer, Sivut 275-281, International Association of Geodesy Symposia, Venice, Italia, 09/10/2012. https://doi.org/10.1007/978-3-319-10837-7_35

Local hydrological effects on gravity at Metsähovi, Finland: Implications for comparing observations by the superconducting gravimeter with global hydrological models and with GRACE. / Mäkinen, Jaakko; Hokkanen, Tero; Virtanen, Heikki et al.
Gravity, Geoid and Height Systems - IAG Symposium GGHS2012, Proceedings. Vuosikerta 141 Springer, 2014. s. 275-281.

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Conference contribution › Scientific › vertaisarvioitu

TY - GEN

T1 - Local hydrological effects on gravity at Metsähovi, Finland

T2 - International Association of Geodesy Symposia

AU - Mäkinen, Jaakko

AU - Hokkanen, Tero

AU - Virtanen, Heikki

AU - Raja-Halli, Arttu

AU - Mäkinen, Risto P.

PY - 2014

Y1 - 2014

N2 - We construct a model for the influence of variation in local water storage on the observations of the superconducting gravimeter (SG) T020 in Metsähovi, Finland. The following hydrological components are accounted for: (1) soilmoisture and groundwater in sediments, (2) groundwater in the fractures of the crystalline bedrock, (3) snow on the ground, and (4) snow on the laboratory roof. We show that due to the geometry of the local storage, its gravity influence at the SG is only a fraction of the influence of the corresponding Bouguer sheet, and discuss the implications for comparing the SG with variation in gravity observed with GRACE. We compare the SG residuals with the variation in gravity predicted from the local model and two models of continental water storage. The general patterns are similar but there are differences in amplitude and phase. Further research is outlined.

AB - We construct a model for the influence of variation in local water storage on the observations of the superconducting gravimeter (SG) T020 in Metsähovi, Finland. The following hydrological components are accounted for: (1) soilmoisture and groundwater in sediments, (2) groundwater in the fractures of the crystalline bedrock, (3) snow on the ground, and (4) snow on the laboratory roof. We show that due to the geometry of the local storage, its gravity influence at the SG is only a fraction of the influence of the corresponding Bouguer sheet, and discuss the implications for comparing the SG with variation in gravity observed with GRACE. We compare the SG residuals with the variation in gravity predicted from the local model and two models of continental water storage. The general patterns are similar but there are differences in amplitude and phase. Further research is outlined.

KW - Continental water storage

KW - GRACE

KW - Groundwater

KW - Hydrology

KW - Snow

KW - Soil moisture

KW - Superconducting gravimeter

UR - http://www.scopus.com/inward/record.url?scp=84927631360&partnerID=8YFLogxK

U2 - 10.1007/978-3-319-10837-7_35

DO - 10.1007/978-3-319-10837-7_35

M3 - Conference contribution

AN - SCOPUS:84927631360

VL - 141

SP - 275

EP - 281

BT - Gravity, Geoid and Height Systems - IAG Symposium GGHS2012, Proceedings

PB - Springer

Y2 - 9 October 2012 through 12 October 2012

ER -

Mäkinen J, Hokkanen T, Virtanen H, Raja-Halli A, Mäkinen RP. Local hydrological effects on gravity at Metsähovi, Finland: Implications for comparing observations by the superconducting gravimeter with global hydrological models and with GRACE. julkaisussa Gravity, Geoid and Height Systems - IAG Symposium GGHS2012, Proceedings. Vuosikerta 141. Springer. 2014. s. 275-281 doi: 10.1007/978-3-319-10837-7_35

Local hydrological effects on gravity at Metsähovi, Finland: Implications for comparing observations by the superconducting gravimeter with global hydrological models and with GRACE

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