Cloud Activating Properties of Aerosol Observed during CELTIC
نویسندگان
چکیده
Department of Chemistry and Biochemistry, Boulder, CO Cooperative Institute for Research in the Environmental Sciences (CIRES), Boulder, CO Program in Atmospheric and Oceanic Sciences, University of Colorado, Boulder, CO Current affiliation: Air Quality Research Division, Environment Canada, Toronto, Canada. Current affiliation: Centre for Ecology and Hydrology, Edinburgh, Scotland Current affiliation: Scripps Institute of Oceanography, La Jolla, CA
منابع مشابه
Contrasting influences of aerosols on cloud properties during deficient and abundant monsoon years
Direct aerosol radiative forcing facilitates the onset of Indian monsoon rainfall, based on synoptic scale fast responses acting over timescales of days to a month. Here, we examine relationships between aerosols and coincident clouds over the Indian subcontinent, using observational data from 2000 to 2009, from the core monsoon region. Season mean and daily timescales were considered. The corr...
متن کاملSimultaneous retrieval of aerosol and cloud properties during the MILAGRO field campaign
Estimation of Direct Climate Forcing (DCF) due to aerosols in cloudy areas has historically been a difficult task, mainly because of a lack of appropriate measurements. Recently, passive remote sensing instruments have been developed that have the potential to retrieve both cloud and aerosol properties using polarimetric, multiple view angle, and multi spectral observations, and therefore deter...
متن کاملAerosol--cloud drop concentration closure in warm cumulus
[1] Our understanding of the activation of aerosol particles into cloud drops during the formation of warm cumulus clouds presently has a limited observational foundation. Detailed observations of aerosol size and composition, cloud microphysics and dynamics, and atmospheric thermodynamic state were collected in a systematic study of 21 cumulus clouds by the Center for Interdisciplinary Remotel...
متن کاملImpact of biomass burning on cloud properties in the Amazon Basin
We used a 1-D cloud parcel model to assess the impact of biomassburning aerosol on cloud properties in the Amazon Basin and to identify the physical and chemical properties of the aerosol that influence droplet growth. Cloud condensation nuclei (CCN) measurements were performed between 0.15 and 1.5% supersaturation at ground-based sites in the states of Amazonas and Rondônia, Brazil, during sev...
متن کاملThe Role of Adiabaticity in the Aerosol First Indirect Effect
Aerosol indirect effects are the most uncertain of the climate forcing mechanisms that have operated through the industrial period. Several studies have demonstrated modifications of cloud properties due to aerosols and corresponding changes in shortwave and longwave radiative fluxes under specific cloud conditions, but some recent studies have indicated that cloud dynamical processes such as e...
متن کامل