- same bathymetry;
- same representer set as for tpxo7.1
- + 157 GRACE representers (M2, S2, O1)
- + 18 representers in TG locations over complex topography and/or no satellite data (16 of them around North Australia)->2498 representers total;
- standard OTIS covariance, re-calculated using tpxo7.1 as prior.
 |
 |
|
M2, assimilated:
-TP
each 4th along track deep (H>500m);
-TPT2
all shallow (H<500m);
-ERS
all shallow (H<500m);
-GRACE
;
-Arctic
TG, Antarctic TG+18 TG
|
S2, O1,
assimilated:
-TP
each 4th along track deep (H>500m);
-TPT2
all shallow (H<500m);
-GRACE;
-Arctic
TG+AntTG+18 TG
|
K1, assimilated:
-TP
each 4th deep (H>500m);
-TPT2
all shallow (H<500m);
-ERS
shallow (H<500);
-Arctic
TG + Antarctic TG + 18 TG
|
|
N2K2, P1, M4 assimilated:
-TP
each 4th deep (H>500m);
-TPT2
all shallow (H<500m);
-Arctic
TG + Antarctic TG
|
MS4, MN4 - NO
data assimilation, only prior solutions
based on forcing, derived from the best fitting inverse solutions, obtained for
corresponding linear constituents.
|
Q1, Mm, Mf are
the same as in tpxo7.1
|
|
|
|
Comparison of tpxo7.1/tpxo7.2 RMS misfits (cm) for groups of tide gauges:
|
|
Pelagic
102
|
Arctic
256
|
Antarctic
67
|
Truth**
Shallow 178
|
Truth** Deep
Atlantic 36
|
N Australia
148
|
|
|
M2
|
Tpxo7.1
|
1.47
|
11.27
|
3.61
|
10.36
|
0.84
|
19.93
|
|
Tpxo7.2
|
1.48
|
9.83
|
2.16
|
6.92
|
0.83
|
13.57
|
|
|
S2
|
Tpxo7.1
|
0.96
|
4.22
|
3.00
|
7.39
|
0.63
|
12.42
|
|
Tpxo7.2
|
0.94
|
3.97
|
1.80
|
3.80
|
0.64
|
7.52
|
|
|
N2
|
Tpxo7.1
|
0.65
|
2.45
|
1.15
|
3.31
|
0.27
|
n/a
|
|
Tpxo7.2
|
0.64
|
1.15
|
0.79
|
2.08
|
0.27
|
n/a
|
|
|
|
Tpxo7.1
|
0.40
|
n/a
|
1.19
|
2.42
|
0.20
|
n/a
|
|
Tpxo7.2
|
0.38
|
n/a
|
1.28
|
1.66
|
0.19
|
n/a
|
|
|
K1
|
Tpxo7.1
|
1.07
|
2.17
|
3.74
|
3.39
|
0.67
|
6.36
|
|
Tpxo7.2
|
1.07
|
2.15
|
1.88
|
1.76
|
0.57
|
4.42
|
|
|
O1
|
Tpxo7.1
|
0.80
|
1.51
|
4.17
|
1.80
|
0.38
|
3.41
|
|
Tpxo7.2
|
0.85
|
1.44
|
1.98
|
1.14
|
0.45
|
2.73
|
|
|
P1
|
Tpxo7.1
|
0.37
|
n/a
|
0.96
|
2.58
|
0.17
|
n/a
|
|
Tpxo7.2
|
0.37
|
n/a
|
1.12
|
0.95
|
0.23
|
n/a
|
|
|
M4
|
RMS signal
|
n/a
|
n/a
|
n/a
|
3.70
|
0.34
|
2.35
|
|
Tpxo7.1
|
n/a
|
n/a
|
n/a
|
2.24
|
0.11
|
2.31
|
|
|
Tpxo7.2
|
n/a
|
n/a
|
n/a
|
2.03
|
0.09
|
2.13
|
|
|
MS4
|
RMS signal
|
n/a
|
n/a
|
n/a
|
2.53
|
0.17
|
n/a
|
|
Tpxo7.1*
|
n/a
|
n/a
|
n/a
|
3.66
|
0.19
|
n/a
|
|
|
Tpxo7.2
|
n/a
|
n/a
|
n/a
|
1.73
|
0.19
|
n/a
|
|
|
MN4
|
RMS signal
|
n/a
|
n/a
|
n/a
|
1.73
|
0.14
|
n/a
|
|
Tpxo7.1*
|
n/a
|
n/a
|
n/a
|
2.11
|
0.19
|
n/a
|
|
|
Tpxo7.2
|
n/a
|
n/a
|
n/a
|
1.39
|
0.15
|
n/a
|
|
** Truth tide gauges sets compiled by Richard Ray (NASA)