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Table: User group experiments.

Experiment

Scientific contentGroup
controlOpenIFS 43r3 experiment at TCo399L137 resolution with 900 s time step using ERA5 as initial condition at 00 on 25 September 2019 (no scaling)All groups
rad_0_NA_topScaling to 0 for radiative tendency between 400 and 50 hPa over the North AtlanticJake, Leo
rad_2_NA_topDoubling the radiative tendency between 400 and 50 hPa over the North AtlanticJake, Leo
rad_0_KarlScaling to 0 for radiative tendency between 900 and 100 hPa over KarlArnaud, Lorenzo, Miriam, Mokhliss

all_0_Karl

Scaling to 0 for tendencies due to radiation, convection and cloud processes between 900 and 100 hPa over Karl

Arnaud, Lorenzo, Miriam, Mokhliss
con_0_Karl_48h

Scaling to 0 for convective tendency in a box moving with Karl in the first 48 hours

Irina, Lauri, Mika, Terhi + Joakim
con_2_Karl_48hDoubling the convective tendency in a box moving with Karl in the first 48 hoursIrina, Lauri, Mika, Terhi + Joakim
con_0.5_def_24h

Scaling to 0.5 for convective tendency in the “default” box between 900 and 200 hPa in the first 24 hours

Guokun, Jian-Feng, Jun, Ying + Victoria
con_1.5_def_24hScaling to 1.5 for convective tendency in the “default” box between 900 and 200 hPa in the first 24 hoursGuokun, Jian-Feng, Jun, Ying + Victoria
con_0.5_Karl_48h

Scaling to 0.5 for convective tendency between 900 and 300 hPa in a box moving with Karl in the first 48 hours

Bethan, Federico, Marvin
con_1.5_Karl_48hScaling to 1.5 for convective tendency between 900 and 300 hPa in a box moving with Karl in the first 48 hoursBethan, Federico, Marvin
cloud_0.5_Karl_48h

 Scaling to 0.5 for tendency due to cloud microphysics between 900 and 300 hPa in a box moving with Karl in the first 48 hours

Bethan, Federico, Marvin
cloud_0.5_Karl_48hScaling to 1.5 for tendency due to cloud microphysics between 900 and 300 hPa in a box moving with Karl in the first 48 hoursBethan, Federico, Marvin


Experiments modifying the temperature tendency due to radiation

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  1. ?
  2. The tendency due to radiation is chopped back every time step, so basically the radiation does not have too much contribution to the total tendency. However, it affects the results only slightly due to the magnitude of this sort of tendency.
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fig1
fig1
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Figure 1: Difference in mean sea level pressure (in hPa) between the experiment with no temperature tendency from radiation (rad_0_NA_top) and the experiment with doubled temperature tendency from radiation (rad_2_NA_top).


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