An Airborne Continuous Flow Diffusion Chamber for Measuring Ice Nucleating Particles, Phase I

Metadata Updated: February 28, 2019

Quantifying atmospheric aerosol, clouds and precipitation processes are critical needs for understanding climate and environmental change, a NASA objective. The formation of ice in the atmosphere depends on the nature and abundance of ice nucleating particles (INP), and has major implications for precipitation and cloud properties. Observational capabilities are required to advance understanding of INP, and there is a substantial gap between current needs within NASA[HTML_REMOVED]and existing instruments. This project develops a new commercial instrument for airborne INP measurements based on the continuous flow diffusion chamber (CFDC) concept. The CFDC approach involves exposing sampled aerosol in a region between two ice-covered walls and measuring ice crystals that form. In Phase I, we seek to test new wall materials necessary for wider-spread use and commercialization of the CFDC technology. Wall materials used in current versions of the CFDC require frequent cleaning, chemical treatment, and re-assembly, which makes its use by NASA prohibitively costly. Tests proposed include characterizing the thermal and other properties of the proposed wall materials, assessing their performance in terms of INP measurement sensitivity when applied in a basic laboratory configuration, and evaluating their longevity and stability necessary for use in a sustainable measurement platform. An evaluation of the test results will identify a suitable wall material for future development efforts would be the[HTML_REMOVED]of Phase II, which has the deliverable of producing a prototype INP measurement system suitable for autonomous operation onboard research aircraft. The project directly addresses the NASA need for measurement capabilities to support current satellite and model validation by providing an instrument capable of measuring ice nucleating particle concentration in an airborne deployment, as identified in subtopic S1.08, In Situ Sensors and Sensor Systems for Earth Science.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date February 28, 2019
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date February 28, 2019
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_94488
Maintainer Email
Public Access Level public
Bureau Code 026:00
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Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 4c7adca1-c050-45d0-8f50-9f4285879006
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2019-01-01
Homepage URL
Data Last Modified 2018-09-07
Program Code 026:027
Source Datajson Identifier True
Source Hash 3b0bff54fd29491e103c51562e714623ac390e4c
Source Schema Version 1.1

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