Advanced Aerosol Composition Measurements and Aerosol Radiative Properties

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Resource or Project Abstract

Aerosols affect the global radiation budget, directly through scattering of solar radiation and indirectly through the role of the aerosol component of cloud condensation nuclei in the activation of clouds, which leads to increased reflectivity (albedo) of solar radiation back to space and thus to increased cooling. Yet, despite the now recognised growing importance of atmospheric aerosols, there are insufficient data available on their microphysical, chemical and radiative properties in regions such as Western Europe and the North Atlantic. Marine aerosols provide a significant contribution to the global radiative budget, due to the 70% ocean surface coverage and the low albedo of the ocean surface. Ireland is located at the strategic region between the North Atlantic Ocean and the European continent, experiencing a vastly different atmospheric composition, which requires sustained Analytical method inter-comparison, which was required due to the change of the analytical laboratory from the University of Miami to Met Éireann, showed good agreement between the analytical methods, providing confidence and continuity in aerosol chemical data time series.

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Contact Information for This Resource

Dr. Darius Ceburnis
National University of Ireland Galway

Prof Gerard Jennings
Department of Physics and ECI

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Offline Print Quality Version    STRIVE_49_Ceburnis_Aerosols_prn.pdf  (2.26 Mb)
Project Report Optimised For Online Viewing    STRIVE_49_Ceburnis_Aerosols_web.pdf  (1.4 Mb)

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Author(s)Ceburnis, D. Jennings, G.
Title Of WebsiteSecure Archive For Environmental Research Data
Publication InformationAdvanced Aerosol Composition Measurements and Aerosol Radiative Properties
Name of OrganisationEnvironmental Protection Agency Ireland
Electronic Address or URL
Unique Identifier9c45fee8-b54b-102d-af1a-60cde515b757
Date of AccessLast Updated on SAFER: 2024-05-18

An example of this citation in proper usage:

Ceburnis, D. Jennings, G.   "Advanced Aerosol Composition Measurements and Aerosol Radiative Properties". Associated datasets and digitial information objects connected to this resource are available at: Secure Archive For Environmental Research Data (SAFER) managed by Environmental Protection Agency Ireland (Last Accessed: 2024-05-18)


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Access Information For This Resource

SAFER-Data Display URL
Resource KeywordsMacehead aerosol radiative solar radiation
EPA/ERTDI/STRIVE Project Code2003-FS-CD-LS-12-M1
EPA/ERTDI/STRIVE Project ThemeAir Quality
Resource Availability: Any User Can Download Files From This Resource
Limitations on the use of this ResourceThe automated citation generated below should be used in all cases where this work is referred to or used in: publications, reports, websites, web blogs, presentations, or other forms of information distribution.
Number of Attached Files (Publicly and Openly Available for Download): 2
Project Start Date Wednesday 1st January 2003 (01-01-2003)
Earliest Recorded Date within any attached datasets or digital objects Wednesday 1st January 2003 (01-01-2003)
Most Recent Recorded Date within any attached datasets or digital objects Sunday 31st December 2006 (31-12-2006)
Published on SAFERThursday 20th May 2010 (20-05-2010)
Date of Last EditThursday 20th May 2010 at 11:32:22 (20-05-2010)
Datasets or Files Updated On Thursday 20th May 2010 at 11:32:22 (20-05-2010)

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Geographical and Spatial Information Related To This Resource

Description of Geographical Characteristics of This Project or Dataset
During the time of the project (2004-2006), aerosol samples were collected on a 22-m tower which was constructed at the Mace Head site. Filter sampling on the 22-m tower used strict sampling sector control procedures. Two samples, one sectored and one nonsectored, were collected in parallel. Collaborative work with the University of Miami finished after analysis of the 2004 samples. A new agreement was reached with the Met Éireann to analyse the 2005 and 2006 samples. However, the 2005 sample record was poor due to a change in personnel at Mace Head. Only 67 samples were collected in 2005, which resulted in 34 samples after the validation procedure. Even fewer sectored samples remained after the validation procedure (16 samples) due to insufficient sampling time, system malfunction and personnel shortage. In 2006, 130 non-sectored samples were collected and all were validated as reliable.

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Supplementary Information About This Resource

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Lineage information about this project or dataset
This work describes physico-chemical and radiative measurements taken at the Mace Head Atmospheric Research Station during the period 2003-2006. The measurements are indicative of the medium- to longterm measurement programme at the site. These include mass concentration (mass per unit volume) of the total suspended particulates (TSP) of aerosol inorganic chemical species, the aerosol scattering coefficient, and the gradient measurements of aerosol chemical species. The relatively continuous nature of the measurement programme permitted both monthly and seasonal characteristics of aerosol parameters to be established.
Supplementary Information
The project provided for aerosol chemical composition data and for aerosol radiative data. Research work was directed towards the measurement of aerosol chemical properties. Measurements of aerosol inorganic chemical species at Mace Head are presented for 2003-2006 for both sectored and nonsectored samples. In addition, aerosol radiative parameters measured at the Mace Head Atmospheric Research Station, near Carna, Co. Galway, have been reported. The project also provided measurements of concentration profiles of PM1 mass, sea salt, non-seasalt sulphate (nssSO4), water insoluble organic carbon (WIOC) and water soluble organic carbon (WSOC). These profiles enabled an estimate for the first time of marine aerosol chemical fluxes.

The project was undertaken by the Atmospheric Research Group within the Department of Experimental Physics and affiliated with the Environmental Change Institute (ECI) at the National University of Ireland, Galway (NUI Galway). The project leader was Professor S. Gerard Jennings (NUI Galway) assisted by Dr Darius Ceburnis (NUI Galway), Brendan M. Kelly (NUI Galway) and T. Gerard Spain (NUI Galway). Some of the earlier work was done in collaboration with members of the Rosenstiel School of Marine and Atmospheric Science, University of Miami, Florida, USA - Dr Dennis L. Savoie and his team. At a later stage of the project, chemical analysis of aerosol filter samples was continued through Met Éireann's analytical laboratory, led by Margaret Ryan. This arrangement was facilitated through the Head of the Instrumentation and Environmental Monitoring Division at Met Éireann, Liam Burke, and later by his successor, Eoin Moran. The project coordinator for the EPA was Dr Frank McGovern.
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