BiasTauxLonRmse
Computes the zonal root mean square error (RMSE) of equatorial Pacific (150°E-90°W) climatological (time and meridional 5°S-5°N average) zonal wind stress (Taux) between model and observations
TropFlux 1979-2018 (main)
20CRv2 1871-2012, ERA-Interim 1979-2018, NCEP2 1979-2018
equatorial Pacific
model and observations regridded toward a generic 1°x1° grid (using cdms esmf linear method)
- detrending (if applicable)
- temporal average
- regridding (if applicable)
- meridional average
- RMSE computation
monthly
10-3 N/m2
zonal wind stress (Taux)
The first level shows the diagnostic used to compute the metric and highlight the main differences between the model and the reference
Figure 1: bias in the zonal structure of zonal wind stress (Taux) in the equatorial Pacific (5°S-5°N averaged), showing mainly trade winds bias (usually a decreased circulation in the central Pacific and an increased circulation in the western Pacific). The black and blue curves show respectively the reference and the model. The metric derived is the zonal RMSE between the model curve and the reference curve
The second level shows the broader picture to better understand the spatial pattern of the bias: the map of the time-mean in the equatorial Pacific
Figure 2: bias of time-mean zonal wind stress (Taux) in the equatorial Pacific, showing the southeasterly and northeasterly trade winds forming the surface branch of the Walker circulation. The left and right maps show respectively the reference and the model