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January 2016 BANTER


Isopycnic

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It's unreal how inconsistent these models have been

 

No it's not. Numerical models are always more inconsistent in the cold season. There are too many interacting variables, parameterizations, assumptions, complex atmos theory, inaccurate initial states, etc, to expect the models to perform consistently with time or without inherent error. The main thing to take away from inconsistent model solns is the degree of certainty. The models are showing much uncertainty in the ext range, which is not not unusual at all in the cold season. 

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No it's not. Numerical models are always more inconsistent in the cold season. There are too many interacting variables, parameterizations, assumptions, complex atmos theory, inaccurate initial states, etc, to expect the models to perform consistently with time or without inherent error. The main thing to take away from inconsistent model solns is the degree of certainty. The models are showing much uncertainty in the ext range, which is not not unusual at all in the cold season.

Good post isohume. I think quite a few people forget this.
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Good post isohume. I think quite a few people forget this.

 

Just to add to that a bit...the ensembles can explicitly show the uncertainty in the LR solns, but that doesn't indicate their means are necessarily better than a specific op run. Outliers can and do turn out to be closer to the actual patterns at times due to all the uncertainties listed above. Ensembles are just an additional way to gauge the degree of model uncertainty. 

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Just to add to that a bit...the ensembles can explicitly show the uncertainty in the LR solns, but that doesn't indicate their means are necessarily better than a specific op run. Outliers can and do turn out to be closer to the actual patterns at times due to all the uncertainties listed above. Ensembles are just an additional way to gauge the degree of model uncertainty. 

So, the typical weenie should grasp on to the outliers as gospel truth.

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Just to add to that a bit...the ensembles can explicitly show the uncertainty in the LR solns, but that doesn't indicate their means are necessarily better than a specific op run. Outliers can and do turn out to be closer to the actual patterns at times due to all the uncertainties listed above. Ensembles are just an additional way to gauge the degree of model uncertainty.

Ah ok. Good to know. Thanks again isohume.
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