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# **Analysis of GA6** 

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<h1 style="color: blue; font-size: 90%">(Abhik Santra, Christian Jakob, Hongyan Zhu, Harry Hendon, Matthew Wheeler and Jing-Jia Luo)</h1>

In this section, the standard diagnostics are applied to GA6 output to identify the model biases in simulating the tropical climate during DJF and JJA seasons.

Experimental Design

=Model= =Resolution\(grid points)= =Vertical\Resolution= =Start Date= =SST &\Sea ice= =Period=
UM8.6 =N96\(192x145)= =85 levels= =1 September\1995= =Observed monthly\(AMIP)= 1996-2010\(15 years)
UM8.6 =N216\(432x325)= =85 levels= =Observed monthly\(AMIP)= 1996-2010\(15 years)

Observed Dataset

The following dataset are used to evaluate the performance of the model and to identify the model biases.

=Dataset= =Variables= =Horizontal Resolution= =Vertical\Resolution= =Period=
=GPCP= =Rainfall= =1 degree x 1 degree= # - =1997-2010=
=AVHRR= =Outgoing Longwave\Radiation (TOA)= =2.5 degree x 2.5 degree= # - =1996-2010=
=ERA-interim\(ERAI)= =u,v,T,q,relative humidity= =T255(~80 km)= =60 levels= =1996-2010=

Level 1 Diagnostics

  1. Seasonal Mean Precipitation

DJF JJA

  1. Seasonal Mean Outgoing Longwave Radiation at TOA

DJF JJA

  1. __Seasonal Mean Zonal Wind at 850 hPa __

DJF JJA

  1. __Seasonal Mean Zonal Wind at 200 hPa __

DJF JJA

  1. __Seasonal Mean Velocity Potential and Divergent Wind at 200 hPa __

DJF JJA

  1. __Seasonal Mean Zonal Wind Profile __

DJF JJA

  1. __Seasonal Mean Temperature Profile __

DJF JJA

  1. __Seasonal Mean Specific Humidity Profile __

DJF JJA

  1. __Seasonal Mean Relative Humidity Profile __

DJF JJA

Single Column Model (SCM) Experiments

The experiment results are here

Suggestions

Any advice would be most welcome.\ Please write your comments [#221 here]

Acknowledgements

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