Arctic cirrus particle size distributions and their parametrizations depending on the cloud origin
type: Dataset
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 independent of geographical region, we further hypothesise that these cloud-type-based parametrizations might be generally valid for use in global models and satellite retrievals, given the distribution of the cloud types is known. The dataset 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. The dataset is the basis of 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 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 parametrizatio…
citation: 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. https://doi.org/10.1007/s00024-016-1324-x
citation: CreativeWork
  name: Wolf, V., Kuhn, T., Milz, M., Völger, P., Krämer, M., & Rolf, C. (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. https://doi.org/10.5194/acp-18-17371-2018
citation: Wolf, V., Kuhn, T., & Krämer, M. (2019). On the Dependence of Cirrus Parametrizations on the Cloud Origin. Geophysical Research Letters, 46(21), 12565–12571. https://doi.org/10.1029/2019GL083841
conditions of access: http://publications.europa.eu/resource/authority/access-right/PUBLIC
conditions of access: info:eu-repo/semantics/openAccess
contributor: Martina Krämer
creative work status: completed
  type: DefinedTerm
  in defined term set: http://publications.europa.eu/resource/authority/dataset-status
  term code: COMPLETED
creator: Thomas Kuhn
creator: Veronika Wolf
date modified: 2021-03-26
date published: 2019-10-08
funding: Grant
  identifier: 85/10, 86/11, 143/12, 273/12, 168/13, 124/14
  funder: Swedish National Space Agency
language: English
is part of: https://doi.org/10.5878/4fzc-pa59
keywords: Natural Sciences
  type: DefinedTerm
  term code: 1
keywords: Earth and Related Environmental Sciences
  type: DefinedTerm
  term code: 105
keywords: Climatology / Meteorology / Atmosphere
keywords: Atmospheric conditions
keywords: parametrization
keywords: cloud origin
keywords: cirrus
keywords: ice particles
keywords: arctic
publisher: Luleå University of Technology
spatial coverage: Sweden
spatial coverage: Norrbotten County
spatial coverage: Kiruna Municipality
temporal coverage: 2012-04-04/2018-02-28
distribution: data/SND1126-001_V1.0.zip
  type: DataDownload
  additional type: data
  conditions of access: http://publications.europa.eu/resource/authority/access-right/PUBLIC
  conditions of access: info:eu-repo/semantics/openAccess
  content size: 164768
  encoding format: application/zip
version: 1.0

PropertyValue
property ID: DOI
value: 10.5878/qh1n-4466

PropertyValue
property ID: DOI
value: 10.1007/s00024-016-1324-x

PropertyValue
property ID: URN
value: urn:nbn:se:ltu:diva-7503

PropertyValue
property ID: URN
value: urn:nbn:se:ltu:diva-72316

PropertyValue
property ID: DOI
value: 10.5194/acp-18-17371-2018

PropertyValue
property ID: DOI
value: 10.1029/2019GL083841

PropertyValue
property ID: URN
value: urn:nbn:se:ltu:diva-73538

Martina Krämer
type: Person
affiliation: Research Centre Jülich
  type: Organization
  department: Institute for Energy and Climate Research 7: Stratosphere (IEK-7)
family name: Krämer
given name: Martina

Thomas Kuhn
type: Person
affiliation: Luleå University of Technology
family name: Kuhn
given name: Thomas

Luleå University of Technology
type: Organization
department: Department of Computer Science, Electrical and Space Engineering

Veronika Wolf
type: Person
affiliation: Luleå University of Technology
family name: Wolf
given name: Veronika

English
type: Language
alternate name: eng

Climatology / Meteorology / Atmosphere
type: DefinedTerm
description: Processes and phenomena of the atmosphere.
term code: climatology-meteorology-atmosphere

PARTICLE SIZE DISTRIBUTION
type: DefinedTerm
description: The frequency distribution of drop sizes (diameters, volumes) that is characteristic of a given cloud or of a given fall of rain.Most natural clouds have unimodal (single maximum) distributions, but occasionally bimodal distributions are observed. In convective clouds, the drop-size distribution is found to change with time and to vary systematically with height, the modal size increasing and the number decreasing with height. For many purposes a useful single parameter representing a given distribution is the volume median diameter, that is, that diameter for which the total volume of all drops having greater diameters is just equal to the total volume of all drops having smaller diameters. The drop- size distribution is one of the primary factors involved in determining the radar reflectivity of any fall of precipitation, or of a cloud mass.

Atmospheric conditions
type: DefinedTerm
description: Physical conditions in the atmosphere. Includes spatial data based on measurements, on models or on a combination thereof and includes measurement locations.
term code: ac

Sweden
type: Place

Norrbotten County
type: Place

Kiruna Municipality
type: Place