1 / 6

Deriving Asian CO Emissions from Aircraft Observations During TRACE-P

This study by Paul Palmer and colleagues at Harvard University focuses on deriving Asian carbon monoxide (CO) emissions by inverting aircraft observations during the TRACE-P project. Utilizing a forward model (GEOS-CHEM), CO emissions, observations, and global inventories are tested. The study includes a "tagged" CO model with 30 tracers and incorporates the oxidation of volatile organic compounds as CO sources. Through inverse modeling, the research aims to assess the adequacy of current emissions inventories, particularly in Asia. Source regions are resolved, with a focus on North and South Korea. The study assumes good knowledge of background CO during TRACE-P and aims to pinpoint Asian emission sources more accurately. Work on this project is ongoing.

tamma
Download Presentation

Deriving Asian CO Emissions from Aircraft Observations During TRACE-P

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Deriving Asian emissions of CO by inverting aircraft observations of CO during TRACE-P Paul Palmer, D. Jones, C. Heald, D. Jacob Harvard University B. Duncan (EPFL),G. Sachse (NASA Langley),D. Streets (Argonne Nat. Lab.),R. Hoffman (AER Inc)

  2. Forward model (GEOS-CHEM 2x2.5o) CO emissions CO observations Global inventories tested • “Tagged” CO model (30 tracers) • OH from full chemistry run • CO sources include BB, BF, and FF, oxidation of VOCs

  3. Logan emissions TRACE-P GEOS-CHEM Streets (Asia) + Logan emissions Forward model analysis suggests inventories are too low

  4. Inverse modeling overview Forward model (GEOS-CHEM) P3B, DC8 observations y Emissions x Inverse model Linear inverse model Xs = Xb + SbK (KTSbK + SY)-1(Y – KXb)

  5. Source regions resolved in inverse analysis S and N Korea Depending on region: bb, bf, ff

  6. Assume we have good knowledge of background CO during TRACE-P: solve for Asian sources only 1583 1590 not well constrained * IN PROGRESS *

More Related