Application of holography and automated image processing for laboratory experiments on mass and fall speed of small cloud ice crystals

Publikationstyp:
Dissertation
Metadaten:
Autoren
  • Maximilian Weitzel
Sammlungen
  • metadata
Schlüsselwörter
  • 530 Physik
  • 530 Physics
Datum der Veröffentlichung
2019
Datum der Datenerfassung
2020
Datum, an dem der Datensatz öffentlich gemacht wurde
2020
Zugang
Public
Titel
Application of holography and automated image processing for laboratory experiments on mass and fall speed of small cloud ice crystals

Datenquelle: METADATA.UB

Andere Metadatenquellen:
Autoren
  • Maximilian Weitzel
  • Subir K Mitra
  • Miklos Szakall
  • Jacob P Fugal
  • Stephan Borrmann
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000595239200002&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.5194/acp-20-14889-2020
Datum der Veröffentlichung
2020
Titel
Application of holography and automated image processing for laboratory experiments on mass and fall speed of small cloud ice crystals

Datenquelle: Web of Science (Lite)

Abstract
<jats:p>Abstract. An ice cloud chamber was developed at the Johannes Gutenberg University of Mainz for generating several thousand data points for mass and sedimentation velocity measurements of ice crystals with sizes less than 150 µm. Ice nucleation was initiated from a cloud of supercooled droplets by local cooling using a liquid nitrogen cold finger. Three-dimensional tracks of ice crystals falling through the slightly supersaturated environment were obtained from the reconstruction of sequential holographic images, automated detection of the crystals in the hologram reconstructions, and particle tracking. Through collection of the crystals and investigation under a microscope before and after melting, crystal mass was determined as a function of size. The experimentally obtained mass versus diameter (m(D)) power law relationship resulted in lower masses for small ice crystals than from commonly adopted parameterizations. Thus, they did not support the currently accepted extrapolation of relationships measured for larger crystal sizes. The relationship between Best (X) and Reynolds (Re) numbers for columnar crystals was found to be X=15.3 Re1.2, which is in general agreement with literature parameterizations. </jats:p>
Autoren
  • Maximilian Weitzel
  • Subir K Mitra
  • Miklós Szakáll
  • Jacob P Fugal
  • Stephan Borrmann
DOI
10.5194/acp-20-14889-2020
Online publication date
2020
Herausgeber URL
http://dx.doi.org/10.5194/acp-20-14889-2020
Datum der Datenerfassung
2020
Titel
Application of holography and automated image processing for laboratory experiments on mass and fall speed of small cloud ice crystals

Datenquelle: Crossref

Author's licence
CC-BY
Autoren
  • Maximilian Weitzel
  • Subir K Mitra
  • Miklós Szakáll
  • Jacob P Fugal
  • Stephan Borrmann
Hosting institution
Universitätsbibliothek Mainz
Sammlungen
  • JGU-Publikationen
Resource version
Published version
DOI
10.5194/acp-20-14889-2020
File(s) embargoed
false
Open access
true
Schlüsselwörter
  • 530 Physik
  • 530 Physics
  • 540 Chemie
  • 540 Chemistry and allied sciences
Open access status
Open Access
Datum der Veröffentlichung
2020
Public URL
https://openscience.ub.uni-mainz.de/handle/20.500.12030/5612
Herausgeber URL
https://doi.org/10.5194/acp-20-14889-2020
Datum der Datenerfassung
2021
Datum, an dem der Datensatz öffentlich gemacht wurde
2021
Zugang
Public
Titel
Application of holography and automated image processing for laboratory experiments on mass and fall speed of small cloud ice crystals

Files

weitzel_maximilian-application_of-20210128130038627.pdf

Datenquelle: OPENSCIENCE.UB

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