The Environment and Climate Change Canada Carbon Assimilation System (EC-CAS v1.0): demonstration with simulated CO observations

Khade, Vikram; Polavarapu, Saroja M.; Neish, Michael; Houtekamer, Pieter L.; Jones, Dylan B. A.; Baek, Seung-Jong; He, Tai-Long; Gravel, Sylvie

doi:https://doi.org/10.5194/gmd-14-2525-2021

Articles | Volume 14, issue 5

https://doi.org/10.5194/gmd-14-2525-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-14-2525-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 5

Development and technical paper

|

06 May 2021

Development and technical paper |

| 06 May 2021

The Environment and Climate Change Canada Carbon Assimilation System (EC-CAS v1.0): demonstration with simulated CO observations

Vikram Khade, Saroja M. Polavarapu, Michael Neish, Pieter L. Houtekamer, Dylan B. A. Jones, Seung-Jong Baek, Tai-Long He, and Sylvie Gravel

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Final revised paper (published on 06 May 2021)
Supplement to the final revised paper
Preprint (discussion started on 18 Aug 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review of “The Environment and Climate Change Canada Carbon Assimilation System (EC-CAS v1.0): demonstration with simulated CO observations” by Vikram Khade et al.', Anonymous Referee #1, 15 Sep 2020
- AC1: 'responses to your queries', Vikram Khade, 28 Nov 2020
RC2: 'Comments of "The Environment and Climate Change Canada Carbon Assimilation System (EC-CAS v1.0): demonstration with simulated CO observations', Anonymous Referee #2, 26 Oct 2020
- AC2: 'responses to your queries', Vikram Khade, 28 Nov 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Vikram Khade on behalf of the Authors (28 Nov 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (04 Dec 2020) by Ignacio Pisso

RR by Anonymous Referee #1 (08 Dec 2020)

ED: Publish as is (24 Mar 2021) by Ignacio Pisso

AR by Vikram Khade on behalf of the Authors (26 Mar 2021) Manuscript

Short summary

A new modeling system has been developed at Environment and Climate Change Canada to ingest observations of carbon monoxide (CO) into a coupled weather and constituent transport model. We show that accounting for the uncertainty in surface flux leads to a better estimate of CO distributions. The benefit of assimilating observations from different simulated networks varies with region. This is the first step towards developing a state and flux estimation system for greenhouse gases.