A lightweight holographic imager for cloud microphysical studies from an untethered balloon

Abstract We describe the construction and testing of an in situ cloud particle imager based on digital holography. The instrument was designed to be low cost and lightweight for vertical profiling of clouds with an untethered weather balloon. This capability is intended to address the lack of in situ cloud microphysical observations that are required for improving the understanding of cloud processes, calibration of climate and weather models, and validation of remote sensing observation methods. From a balloon sounding through multiple bands of cloud, we show that we can retrieve shape information and size distributions of the cloud particles as a function of altitude. Microphysical retrievals from an imaging satellite are compared to these in situ observations, and significant differences are identified, consistent with those identified in prior evaluation campaigns.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: A lightweight holographic imager for cloud microphysical studies from an untethered balloon ; volume:17 ; number:10 ; year:2024 ; pages:3237-3253 ; extent:17 ; Atmospheric measurement techniques ; 17, Heft 10 (2024), 3237-3253 (gesamt 17)

Contributors, Places and Time

• Creator: Chambers, Thomas Edward ; Reid, Iain Murray ; Hamilton, Murray

Further information

• DOI: 10.5194/amt-17-3237-2024
• URN: urn:nbn:de:101:1-2405300419277.046727507017
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:50 AM CEST