Articles | Volume 21, issue 1
Atmos. Chem. Phys., 21, 217–238, 2021
Atmos. Chem. Phys., 21, 217–238, 2021

Research article 12 Jan 2021

Research article | 12 Jan 2021

A mass-weighted isentropic coordinate for mapping chemical tracers and computing atmospheric inventories

Yuming Jin et al.


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Yuming Jin on behalf of the Authors (05 Nov 2020)  Author's response    Manuscript
ED: Publish as is (24 Nov 2020) by Andreas Engel
Short summary
We propose a new atmospheric coordinate (Mθe) based on equivalent potential temperature (θe) but with mass as the unit. This coordinate is useful in studying the spatial and temporal distribution of long-lived chemical tracers (CO2, CH4, O2 / N2, etc.) from sparse data, like airborne observation. Using this coordinate and sparse airborne observation (HIPPO and ATom), we resolve the Northern Hemisphere mass-weighted average CO2 seasonal cycle with high accuracy.
Final-revised paper