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hannahnesser / TROPOMI

Code for downloading, processing, and analyzing TROPOMI XCH4 retrievals
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Create TROPOMI operator #3

Open hannahnesser opened 4 years ago

hannahnesser commented 4 years ago

GEOS-Chem output should be processed using the TROPOMI averaging kernel to recreate the TROPOMI observations.

hannahnesser commented 4 years ago

Some thoughts on Zhen's script:

  1. It looks like her first for loop under "read Satellite" is just designed to filter by year and date. I've changed this filter to consider only TROPOMI files from May 2018.
  2. She uses NN to denote the length of the observation vector and MM to denote the length of the state vector, which is the opposite of our standard convention.
  3. MM (the state vector dimension) is hard coded in her code. I've commented it out for now since it's not relevant to us, but it's worth noting that this will need to be changed in the future for our work.
  4. She seems to use lat_ratio to apply the stratospheric correction. We should check with her about this.
mrew8 commented 4 years ago

comment from this morning: (1)I'm still figuring out what output Zhen is using. It looks like N49 (.bpch converted to .nc), but this was removed in GC version 7. ^I think this is the N51 diagnostic, so I am working on that now (2)I'm not sure what the sensitivity data is that Zhen is using, is this something I need to generate? Zhen only has this for the year of 2019, so I might need to.