Modeling the dynamic behavior of a droplet evaporation device for the delivery of isotopically calibrated low-humidity water vapor

Kerstel, Erik

doi:https://doi.org/10.5194/amt-14-4657-2021

Articles | Volume 14, issue 6

https://doi.org/10.5194/amt-14-4657-2021

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

https://doi.org/10.5194/amt-14-4657-2021

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

Articles | Volume 14, issue 6

Research article

|

23 Jun 2021

Research article |

| 23 Jun 2021

Modeling the dynamic behavior of a droplet evaporation device for the delivery of isotopically calibrated low-humidity water vapor

Erik Kerstel

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Final revised paper (published on 23 Jun 2021)
Preprint (discussion started on 22 Dec 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Reviewer’s comments on paper amt-2020-428', David Walton, 04 Jan 2021
- AC1: 'Reply to RC1 (David Walton)', Erik Kerstel, 16 Mar 2021
RC2: 'Reviewer comment on amt-2020-428', Anonymous Referee #2, 14 Feb 2021
- AC2: 'Reply to RC2', Erik Kerstel, 16 Mar 2021

Peer-review completion

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

AR by Erik Kerstel on behalf of the Authors (06 Apr 2021) Author's response Author's tracked changes Manuscript

ED: Referee Nomination & Report Request started (12 Apr 2021) by Marc von Hobe

RR by Anonymous Referee #2 (10 May 2021)

ED: Publish subject to technical corrections (11 May 2021) by Marc von Hobe

AR by Erik Kerstel on behalf of the Authors (18 May 2021) Author's response Manuscript

Short summary

A model was developed to quantitatively describe the dynamics, in terms of vapor-phase water concentration and isotope ratios, of nanoliter-droplet evaporation at the end of a syringe needle. Such a low humidity generator can be used to calibrate laser-based water isotope analyzers, e.g., in Antarctica. We show that modeling of experimental data constrains isotope fractionation factors and the evaporation rate to physically realistic values in good agreement with available literature values.