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Western USA SO2 emissions too high #2

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ssmithClimate opened this issue Sep 7, 2017 · 3 comments
Open

Western USA SO2 emissions too high #2

ssmithClimate opened this issue Sep 7, 2017 · 3 comments
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CMIP6 gridded_emissions_data

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@ssmithClimate
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ssmithClimate commented Sep 7, 2017 •
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SO2 emissions in the western US are too high compared to US EPA state level emissions data. This is a consequence of our use of EDGAR emissions grids which use global proxy databases that evidently do not incorporate sub-regional information. This spatial allocation error is much larger than the uncertainty in emissions over the western US. (Over the Eastern US, the difference, is likely of comparable magnitude to emissions uncertainty.)
@ssmithClimate
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This issue will be addressed by on-going work to add the capability of producing sub-regional emission time series, such as at the US state level, and using these time series to produce gridded emissions.

@ssmithClimate
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We have created an approximate multiplicative correction grid for total SO2 emissions that shifts emissions from the western to eastern US. This is for testing and evaluation only at this point, but we are happy to share this to any groups who would find this useful.

ssmithClimate added a commit that referenced this issue Aug 26, 2019
@ssmithClimate
# This is a combination of 11 commits.
5111055 
# This is the 1st commit message:

Remove unused files from master.

# This is the commit message #2:

Version comparison (#178)

* Define public CEDS release versions

- add object to common_data.R

* Fix RCP mapping

- delete second line for sector 6A, as RCP is not defined for this row
- retain first line for sector 6A, as RCP is defined here

# This is the commit message #3:

Fixing coal heat content for CO2

- output coal heat content column for 2014 data as X2014

# This is the commit message #4:

Update usa emissions and min pathways (#183)

Update US pollutant emissions Inventory to latest version and also update the minimum emission factor pathways for transportation. Generalize treatment of inventory and system end years.
# This is the commit message #5:

Waste minor update (#182)

Calculate domestic waste burning emissions from user-defined burning parameters. Lower assumption for fraction assumed burned. Increase India per-capita waste generation to newer literature value.

# This is the commit message #6:

Consistent units (#181)

Improve consistency of unit conversions across the system. Update some unit conversion values.
# This is the commit message #7:

India gains fix po (#148)

Use GAINS India data (activity, emissions, sulfur content for fuels, ash sulfur retention for coal) instead of scaling to REAS and EDGAR. Updated some European default sulfur data calcs.
# This is the commit message #8:

Remove industrial seasonality and fix speciated VOC gridding (#185)

Change industrial seasonality to flat, and update makefile for sub-VOC gridding
# This is the commit message #9:

fix linefeed

# This is the commit message #10:

Fix combustion activity order (#180)

Re-structure so that user-added energy data is added and all activity is calculated before emissions calcs. 
# This is the commit message #11:

Update readme and version number
@ssmithClimate
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The addition of new point data in recent gridded data, for example the CEDS SatEM version of the 2021_04_21 release have, at leas partially, corrected this issue.

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