unphysically

The G&T T_phys actually could apply to a rotating planet if it also unphysically had zero heat capacity.

Rabett Run EliRabett 2009

At that point the only thing that can be done to stop the model from blowing up is to include an unphysically large dissipation that will have an impact on the spectrum.

Exponential Growth in Physical Systems « Climate Audit 2007

This example alone should give one pause about the use of information based on models with unphysically large dissipation, but it appears that this obvious lesson still has not been understood by a number of modelers.

Exponential Growth in Physical Systems « Climate Audit 2007

In particular, the unphysically large dissipation can make the models appear smooth, but require unphysical forcings to keep the spatial spectrum from decaying too rapidly.

Exponential Growth in Physical Systems #2 « Climate Audit 2007

Furthermore, the value of (Table III) provides a noise persistance timescale estimate years which is unphysically long compared to the typical 1-year timescale estimated for regional surface temperatures data (see Section 5.2). gb

Climate Insensitivity and AR(1) Models « Climate Audit 2007

The reason see Periodic Updating reference by Browning and Kreiss was that the NWP models had excessive unphysically large dissipation so the error equation behaved as the heat equation in the above simple mathematical example, i.e. the models were not a true reflection of the real atmosphere and led to completely misleading results.

Exponential Growth in Physical Systems « Climate Audit 2007

And how do you propose to contain the fast exponential growth with finer mesh models – evidently only with unphysically large dissipation.

Exponential Growth in Physical Systems « Climate Audit 2007

It is well known that the forcing parameters in the models in the majority of these publications are tuned to overcome the unphysically large dissipation to provide results similar to reality for a special case and then published as shown in the simple mathematical example on this string.

Exponential Growth in Physical Systems « Climate Audit 2007

At that point the only thing that can be done to stop the model from blowing up is to include an unphysically large dissipation that will have an impact on the spectrum

Exponential Growth in Physical Systems « Climate Audit 2007

At that point the only thing that can be done to stop the model from blowing up is to include an unphysically large dissipation that will have an impact on the spectrum.

Exponential Growth in Physical Systems « Climate Audit 2007