Comparison of in situ bottom pressure data with GRACE gravimetry in the Crozet-Kerguelen region

R. Rietbroek; P. LeGrand; B. Wouters; J. M. Lemoine; G. Ramillien; C. W. Hughes

doi:10.1029/2006GL027452

Comparison of in situ bottom pressure data with GRACE gravimetry in the Crozet-Kerguelen region

R. Rietbroek, P. LeGrand, B. Wouters, J. M. Lemoine, G. Ramillien, C. W. Hughes

Research output: Contribution to journal › Article › Academic › peer-review

30 Citations (Scopus)

Abstract

Two time series of deep ocean bottom pressure records (BPRs) in between the Crozet Islands and Kerguelen are compared with GRACE (Gravity Recovery And Climate Experiment) equivalent water heights. An analysis of the correlation is performed for four time series: 1) monthly averages of the equivalent water height at the Crozet Islands, 2) the same near the Kerguelen Islands, 3) the mean of the two preceding series and 4) the difference between the two locations expressed in terms of geostrophic transport. We find that smoothed GRACE solutions are strongly correlated with the BPR data with correlation coefficients in the order of 0.7-0.8. Consequently GRACE measures real oceanic mass variations in this region.

Original language	English
Article number	L21601
Pages (from-to)	1-4
Number of pages	4
Journal	Geophysical research letters
Volume	33
Issue number	21
DOIs	https://doi.org/10.1029/2006GL027452
Publication status	Published - Nov 2006
Externally published	Yes

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10.1029/2006GL027452

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title = "Comparison of in situ bottom pressure data with GRACE gravimetry in the Crozet-Kerguelen region",

abstract = "Two time series of deep ocean bottom pressure records (BPRs) in between the Crozet Islands and Kerguelen are compared with GRACE (Gravity Recovery And Climate Experiment) equivalent water heights. An analysis of the correlation is performed for four time series: 1) monthly averages of the equivalent water height at the Crozet Islands, 2) the same near the Kerguelen Islands, 3) the mean of the two preceding series and 4) the difference between the two locations expressed in terms of geostrophic transport. We find that smoothed GRACE solutions are strongly correlated with the BPR data with correlation coefficients in the order of 0.7-0.8. Consequently GRACE measures real oceanic mass variations in this region.",

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T1 - Comparison of in situ bottom pressure data with GRACE gravimetry in the Crozet-Kerguelen region

AU - Rietbroek, R.

AU - LeGrand, P.

AU - Wouters, B.

AU - Lemoine, J. M.

AU - Ramillien, G.

AU - Hughes, C. W.

PY - 2006/11

Y1 - 2006/11

N2 - Two time series of deep ocean bottom pressure records (BPRs) in between the Crozet Islands and Kerguelen are compared with GRACE (Gravity Recovery And Climate Experiment) equivalent water heights. An analysis of the correlation is performed for four time series: 1) monthly averages of the equivalent water height at the Crozet Islands, 2) the same near the Kerguelen Islands, 3) the mean of the two preceding series and 4) the difference between the two locations expressed in terms of geostrophic transport. We find that smoothed GRACE solutions are strongly correlated with the BPR data with correlation coefficients in the order of 0.7-0.8. Consequently GRACE measures real oceanic mass variations in this region.

AB - Two time series of deep ocean bottom pressure records (BPRs) in between the Crozet Islands and Kerguelen are compared with GRACE (Gravity Recovery And Climate Experiment) equivalent water heights. An analysis of the correlation is performed for four time series: 1) monthly averages of the equivalent water height at the Crozet Islands, 2) the same near the Kerguelen Islands, 3) the mean of the two preceding series and 4) the difference between the two locations expressed in terms of geostrophic transport. We find that smoothed GRACE solutions are strongly correlated with the BPR data with correlation coefficients in the order of 0.7-0.8. Consequently GRACE measures real oceanic mass variations in this region.

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SN - 0094-8276

VL - 33

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JO - Geophysical research letters

JF - Geophysical research letters

IS - 21

M1 - L21601

ER -

Comparison of in situ bottom pressure data with GRACE gravimetry in the Crozet-Kerguelen region

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