Skip to content

Fog Experiments CY46

Emily Gleeson edited this page Apr 28, 2023 · 3 revisions

Introduction: We will continue to test the sensitivity of fog forecasts to model settings, with tests spanning a range of low visibility situations and domains, as well as land and sea cases.

Technical Info: We should use CY46 for testing - would recommend a 5 day spin-up before the start of the experiment.

Get the CY46 code

mkdir -p $SCRATCH/harmonie_releases/git/HCY46 cd $SCRATCH/harmonie_releases/git/HCY46 git clone [email protected]:Hirlam/Harmonie.git cd Harmonie git checkout dev-CY46h1

Run a 5 day warm-up period (LL_LIST="3"), followed by the length of your experiment with LL_LIST="33,3,3,3,24,3,3,3"

List of Case Studies:

Dates Domain Who Fog Description Status (state what expts done

Tests to be done:

Experiment Settings Other infomation
0 default CY46
1 RFRMIN(24)=1 in harmonie_namelists.pm This implies that LHGT_QS is only applied at the lowest model level
2 BDAERO=cams (in config_exp.h); in harmonie_namelists.pm set 'YL_NL%NREQIN' => '-1,', 'YQ_NL%NREQIN' => '-1,', 'YL_NL%NREQIN' => '-1,', NAER=0, LAERODES=.FALSE., LAEROLAN=.FALSE., LAEROSEA=.FALSE., LAEROSOO=.FALSE. The namelist settings are mainly as there is an inconsistency in the current code
3 CAERO=camsaod in config_exp.h Use CAMS rather than Tegen AOD
4 k values (KPN)
5 KII - land vs sea
6 DMP suggestion about nu