2x2

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Identifying biases in T(z) data using
satellite-altimetry
2x2box _at_ 26.5W 33.5N 2000 2007 data XBT r
0.5 m 3.7  m/cm b 786.2 m mean 785.1 m std.
dev. 53.4 m ARGO r 0.6 m 4.3 m/cm b 769.3
m mean 775.5 m std. dev 54.0 m
Pedro DiNezio, Gustavo Goni and Claudia Schmidt
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number of observations
XBT
ARGO
correlation coefficient
regression coefficient
pseudo climatology
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XBT-derived pseudo climatology
ARGO-derived pseudo climatology
D10
D10
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D10
Distribution of profiles from WHOI floats with
spurious pressure values reported from January 1,
2003 through June 30, 2007 (Willis et al, JOAT
2007).
D15
D20
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Implications for heat storage estimates
XBT-derived pseudo climatology
HS100
HS750
ARGO-derived pseudo climatology
XBT ARGO difference
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Depth dependent XBT ARGO bias
( SOLO floats that have incorrect pressure values
are not included )
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Depth dependent XBT ARGO bias
( only statistically significant 67 XBT ARGO
biases are included )
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Depth correction
1 error! 4.7m at splash!
XBT fall-rate correction required to bring mean
bias to zero
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Heat storage correction
XBT-derived pseudo climatology
HS100
HS750
ARGO-derived pseudo climatology
XBT ARGO difference
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backup
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(No Transcript)
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Implications for heat storage estimates (old)
XBT-derived pseudo climatology
HS100
HS750
ARGO-derived pseudo climatology
XBT ARGO difference