eastjames/sat-operator

TROPOMI methane & GEOS-Chem operator

Python

TROPOMI observation operator for GEOS-Chem

Adapted from IMI code, specifically the files: https://github.com/geoschem/integrated_methane_inversion/blob/main/src/inversion_scripts/operators/TROPOMI_operator.py https://github.com/geoschem/integrated_methane_inversion/blob/main/src/inversion_scripts/operators/operator_utilities.py

Contents

config.yml
- user configuration file for GEOS-Chem and TROPOMI file paths and other options
methanegridder.py
- main wrapper code to grid L2 retrievals into gridded L3 daily files
tropomi-match.ipynb
- notebook James made to look at results, messy
tropomi.py
- main code for observation operator
- applies area-weighting and averages all observations in a grid cell
- applies GEOS-Chem vertical profiles to retrieval

Usage

Edit config.yml according to needs
Optionally create your own batch submission to run on a compute node
Run ./methanegridder.py at the command line or in a batch job in an environment with required python libraries

required python libraries

numpy
xarray
pandas
datetime
cftime
yaml
shapely