QUAERERE

Quantifying aerosol-cloud-climate effects by regime

Coordinatore	UNIVERSITAET LEIPZIG    more Spiacenti, non ci sono informazioni su questo coordinatore. Contattare Fabio per maggiori infomrazioni, grazie.
Nazionalità Coordinatore	Germany [DE]
Totale costo	1˙448˙160 €
EC contributo	1˙448˙160 €
Programma	FP7-IDEAS-ERC Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	ERC-2012-StG_20111012
Funding Scheme	ERC-SG
Anno di inizio	2012
Periodo (anno-mese-giorno)	2012-10-01   -   2017-09-30

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	UNIVERSITAET LEIPZIG  Organization address address: RITTERSTRASSE 26 city: LEIPZIG postcode: 4109 contact info Titolo: Mr. Nome: Gerhard Cognome: Fuchs Email: send email Telefono: +49 341 9735012 Fax: +49 341 9735009	DE (LEIPZIG)	hostInstitution	1˙448˙160.00
2	UNIVERSITAET LEIPZIG  Organization address address: RITTERSTRASSE 26 city: LEIPZIG postcode: 4109 contact info Titolo: Prof. Nome: Johannes Renatus Cognome: Quaas Email: send email Telefono: 493420000000 Fax: 493420000000	DE (LEIPZIG)	hostInstitution	1˙448˙160.00

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 Obiettivo del progetto (Objective)

'Global climate change is widely considered one of the main concerns of humankind. However, predictions are highly uncertain, with no substantial improvement since more than three decades. They are hampered by the huge uncertainty of climate forcing, which is dominated by the uncertainty in anthropogenic aerosol-cloud-climate effects (“aerosol indirect effects”). The goal of QUAERERE (Latin for researching) is a reliable, observations-based, global quantification of these effects, which would also imply a constraint on climate sensitivity and thus climate predictions. This goal is now reachable combining recent advances in different disciplines: (i) a decade-long satellite dataset involving retrievals of the relevant quantities is now available, complemented by a complete aerosol dataset from a new reanalysis; (ii) on the basis of high-resolved numerical weather pre­diction models, which include parameterisations of aerosol cycles and cloud-precipitation microphysics, cloud-system resolving simulations at a regional scale are now possible; reliable simulations beyond idealised cases are thus possible. These tools are complemented by comprehensive global climate models and reference ob­servations from ground-based sites. The problem in aerosol-cloud-climate effects is in its complexity: Various processes counteract each other, and large spatiotemporal variability of clouds buffers the forcing effects. QUAERERE proposes a two-fold “divide-and-conquer” approach to this complex problem: (i) aerosol-cloud-climate effects will be investigated by regime; this allows to circumvent the problem of aerosol-cloud-climate ef­fects being buffered when averaging over different regimes; and (ii) by investigating individual terms con­tributing to the aerosol-cloud-climate effects separately; this allows to analyse individual statistical relation­ship in satellite observations and model results consistently, and to perform model sensitivity studies for cause-effect attribution.'