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ATM-METFIN SIGNED

Quantifying atmospheric ice nucleating particle (INP) concentrations via advances in measurement techniques and field studies of ice nucleation

Total Cost €

EC-Contrib. €

Partnership

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Outcomes and
results

ATM-METFIN project word cloud

Explore the words cloud of the ATM-METFIN project. It provides you a very rough idea of what is the project "ATM-METFIN" about.

temperatures mechanisms ice water marine dust measuring detection exponentially 2013 pinc questions nucleating technological regarding lowering initiation chamber scientific host hydrological lack unanswered temperature zero primary atmosphere pertinent mixed extend continue atmospheric deg time improvements nucleation anthropogenic mineral origin ntilde initial supercooled observatory limits differentiate warmer balance concentration instrumental playing 30 crystals primarily ambient point first minus iza immersion droplets focal energy physics unknowns ongoing series biogenic portable particles concentrate cloud cycle earth condensation precipitation radiative chemistry goals additional clouds gaps mode sub act aerosol instrumentation combine decreases perspective inp tenerife

Project "ATM-METFIN" data sheet

The following table provides information about the project.

Coordinator	EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH Organization address address: Raemistrasse 101 city: ZUERICH postcode: 8092 website: https://www.ethz.ch/de.html contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.
Coordinator Country	Switzerland [CH]
Total cost	175˙419 €
EC max contribution	175˙419 € (100%)
Programme	1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
Code Call	H2020-MSCA-IF-2016
Funding Scheme	MSCA-IF-EF-ST
Starting year	2017
Duration (year-month-day)	from 2017-05-01 to 2019-04-30

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH Organization address address: Raemistrasse 101 city: ZUERICH postcode: 8092 website: https://www.ethz.ch/de.html contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	CH (ZUERICH)	coordinator	175˙419.00

Map

Project objective

The focal point of the research proposal is to combine the current technological advancement and scientific questions regarding the unknowns of atmospheric ice nucleation. Ice nucleation is an important pathway for cloud formation and initiation of precipitation, therefore playing a significant role in the Earth’s hydrological cycle and energy and radiative balance. Several questions pertinent to ice nucleation remain unanswered, partially due to gaps in instrumental technology and lack of ambient measurements. The proposed work primarily focuses on the mechanisms of ice nucleation in the atmosphere, more specifically the number, physics and chemistry of biogenic and anthropogenic aerosol particles able to act as ice nucleating particles (INP). Field measurements with technological improvements to the existing Portable Ice Nucleation Chamber (PINC) are planned. One of the goals is to continue the time series measurements of INP parameters at the Izaña Observatory in Tenerife, where measurements have been ongoing since 2013 by the host institution. Since the INP concentration exponentially decreases with increasing temperature, and it is the warmer sub-zero temperatures that are more relevant for the initial ice formation in mixed-phase, the goal is to extend the measurements of INP parameters at the Izaña Observatory in Tenerife to temperatures above −30°C. Using additional instrumentation in the field, the role of mineral dust, particles of anthropogenic origin and marine primary biogenic particles as potential INP will be investigated in more detail. From a technical perspective, the work will concentrate on lowering the detection limits of PINC and on improving its ability to differentiate between water droplets and ice crystals. These improvements will allow measuring INP at warmer sub-zero temperatures and in immersion/condensation mode, both of which are more relevant for the first ice formation in supercooled clouds than our current measurements.

Publications

List of publications.
year	authors and title	journal	last update
2018	Mikhail Paramonov, Robert O. David, Ruben Kretzschmar, Zamin A. Kanji A laboratory investigation of the ice nucleation efficiency of three types of mineral and soil dust published pages: 16515-16536, ISSN: 1680-7324, DOI: 10.5194/acp-18-16515-2018	Atmospheric Chemistry and Physics 18/22	2019-08-05

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