Arctic cirrus particle size distributions and their parametrizations depending on the cloud origin

Creator/Principal investigator(s):

Thomas Kuhn - Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering orcid

Veronika Wolf - Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering orcid

Description:

Particle size distributions (PSDs) for cirrus clouds are important for both climate models and many remote sensing retrieval methods. It is necessary to parametrize PSDs for different cloud types.

Arctic cirrus particle size distributions (PSD) are presented depending on the cloud origin, either in situ or liquid. The data set used originate from balloon-borne measurements above Kiruna (north of Sweden, 67.8N, 20.4E) during winter. The observed PSDs are represented by gamma functions. The gamma coefficients exhibit large differences with regard to cloud origin. Thus, two new PSD parametrizations for Arctic cirrus of in situ and liquid origin are presented. These functions for Arctic cirrus confirm established parametrizations for continental cirrus sorted by two particle size modes, but differ from others depending only on temperature. We suppose that the agreement between the parametrizations of the geographically different cirrus is because in situ and liquid origin cirrus also distinguish by particle size modes. Since cloud sorting by their origin is based on physical processes which are i

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Responsible department/unit:

Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering

Creator/Principal investigator(s):

Thomas Kuhn - Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering orcid

Veronika Wolf - Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering orcid

Contributor(s):

Martina Krämer - Research Centre Jülich, Institute for Energy and Climate Research 7: Stratosphere (IEK-7) orcid

Identifiers:

SND-ID: SND 1126

Description:

Particle size distributions (PSDs) for cirrus clouds are important for both climate models and many remote sensing retrieval methods. It is necessary to parametrize PSDs for different cloud types.

Arctic cirrus particle size distributions (PSD) are presented depending on the cloud origin, either in situ or liquid. The data set used originate from balloon-borne measurements above Kiruna (north of Sweden, 67.8N, 20.4E) during winter. The observed PSDs are represented by gamma functions. The gamma coefficients exhibit large differences with regard to cloud origin. Thus, two new PSD parametrizations for Arctic cirrus of in situ and liquid origin are presented. These functions for Arctic cirrus confirm established parametrizations for continental cirrus sorted by two particle size modes, but differ from others depending only on temperature. We suppose that the agreement between the parametrizations of the geographically different cirrus is because in situ and liquid origin cirrus also distinguish by particle size modes. Since cloud sorting by their origin is based on physical processes which are i

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Language:

English

Time period(s) investigated:

2012-04-04 — 2018-02-28

Geographic spread:

Funding:

Swedish National Space Agency — Ref. 85/10, 86/11, 143/12, 273/12, 168/13, 124/14

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Publications

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Kuhn, T., & Heymsfield, A. J. (2016). In situ balloon-borne ice particle imaging in high-latitude cirrus. Pure and Applied Geophysics, 173 (9), 3065-3084. DOI: 10 .1007/s00024-016-1324-x
Link to article
DOI: 10 .1007/s00024-016-1324-x

Wolf, V., et al. (2018). Arctic ice clouds over northern Sweden: microphysical properties studied with the Balloon-borne Ice Cloud particle Imager, B-ICI. Atmospheric Chemistry and Physics, 18 (23), 17371-17386. DOI: 10.5194/acp-18-17371-2018
Link to article
DOI: 10.5194/acp-18-17371-2018

Wolf, V., T. Kuhn, and M. Krämer (2019), On the dependence of cirrus parametrizations on the cloud origin, Geophys. Res. Lett., 46(21), 12,565- 12,571, doi: 10.1029/2019GL083841.
Link to article
DOI: 10.1029/2019GL083841

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Arctic cirrus particle size distributions and their parametrizations depending on the cloud origin

Suggested citation:

Thomas Kuhn, Veronika Wolf. Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering (2019). Arctic cirrus particle size distributions and their parametrizations depending on the cloud origin. Swedish National Data Service. Version 1.0. https://doi.org/10.5878/qh1n-4466

Creator/Principal investigator(s):

Thomas Kuhn - Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering orcid

Veronika Wolf - Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering orcid

Description:

The data set consists primarily of measured particle size distributions (PSD).
Then, coefficients of the fitted gamma functions are reported.
Also, PSD data calculated from the new parametrizations at various temperatures are provided for typical conditions.

These are the data from article Wolf, V., T. Kuhn, and M. Krämer (2019), On the dependence of cirrus parametrizations on the cloud origin, Geophys. Res. Lett., 46(21), 12,565- 12,571, doi: 10.1029/2019GL083841.

The particle size distributi

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Data format / data structure:

Numeric

Time period(s) investigated:

2012-04-04 — 2018-02-28

Published: 2019-12-19
Last updated: 2020-02-20