geoschem / integrated_methane_inversion

Integrated Methane Inversion workflow repository.
https://imi.readthedocs.org
MIT License
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[FEATURE REQUEST] Flexible regularization parameter + boundary conditions #78

Closed djvaron closed 5 months ago

djvaron commented 1 year ago

From S. Baray:

In general, the buffer regions will be using more TROPOMI data than the region of interest. It may be useful to include the option of optimizing them with a different regularization factor (i.e. γ=0.25 for buffer regions and γ=1.0 for the ROI), or to not optimize the buffer regions at all for sensitivity experiments.

djvaron commented 1 year ago

Related request:

Option to swap out boundary conditions from TROPOMI

From S. Baray:

For regions in Canada that are sensitive to errors in the background methane fields, which are also affected by less data coverage from TROPOMI, it may be helpful to include the option of swapping out boundary conditions from the results of a global inversion. Within this tiered approach, if (a) the background fields are from a global inversion (possibly using an alternative dataset, GOSAT or in-situ data), (b) the buffer regions are optimized using TROPOMI with a “softer” regularization factor γ=0.25, and (c) the ROI is optimized using a higher regularization factor γ=0.75–1.0, it may produce the most reasonable results over Canada where the focus is on the local emissions within the ROI and the errors from the outside regions are minimized.

github-actions[bot] commented 5 months ago

This issue has been automatically marked as stale because it has not had recent activity. If there are no updates within 7 days it will be closed. You can add the "never stale" tag to prevent the issue from closing this issue.

github-actions[bot] commented 5 months ago

Closing due to inactivity