initial commit

# Please enter the commit message for your changes. Lines starting
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# Date:      Fri Jul 24 09:26:46 2026 +0000
#
# On branch main
#
# Initial commit
#
# Changes to be committed:
#	new file:   .gitignore
#	new file:   ek_utils/__init__.py
#	new file:   ek_utils/argparse_helpers.py
#	new file:   ek_utils/deacc.py
#	new file:   ek_utils/select_field.py
#	new file:   ek_utils/validate_level.py
#	new file:   ek_utils/version.py
#	new file:   ekp_fc_aod_step.py
#	new file:   ekp_fc_co_step.py
#	new file:   ekp_fc_hcn_step.py
#	new file:   ekp_fc_msl_step.py
#	new file:   ekp_fc_nox_step.py
#	new file:   make_plots.sh
#	new file:   requirements.txt
#	new file:   setup_env.sh
#
