[Project: Short_Name='IAOOS']
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ASCOS-AMS-01
Entry ID:
SMHI_IPY_ASCOS-AMS-01
Summary
Abstract:
ASCOS was an interdisciplinary expedition to the central Arctic on the icebreaker Oden from 1 August to 9 September 2008. The expedition focused on processes relating to cloud formation in the summer Arctic and included observations of marine biology and chemistry, atmospheric chemistry, physical oceanography, aerosol chemistry and physics, and meteorology. These measurements were made by a time-of-flight aerosol mass spectrometer (C-ToF AMS) and includes the chemical components of the aerosol that vapourized at 873 K (organic, sulphate, nitrate and methane sulphonate). Measurements were made every 5 minutes from a PM10 inlet 27 m above sea level and included a 20 day drift period around N87 W5. Values are reported in micrograms / standard cubic metre.
Related URL
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
Data Set Citation
Dataset Originator/Creator:
Rachel Chang
Dataset Title:
ASCOS-AMS-01
Dataset Release Date:
2009-09-01
Dataset Release Place:
Stockholm
Dataset Publisher:
Bert Bolin Center for Climate for Climate Research, Stockholm University
Version:
1.0
Online Resource:
http://www.ascos.se
Temporal Coverage
Start Date:
2008-08-04
Stop Date:
2008-09-08
Location Keywords
Science Keywords
ISO Topic Category
Platform
Instrument
Quality
The pore close-off depth at Siple Dome occurs in the range of 48 m to 56 m. Above this depth, air is able to circulate within the firn because the gaps have not been fully closed. This eventually happens as the snow accumulates above and the firn continues to densify. However, until the pores close off and trap the gases, the age of the ice and the age of the gas are not the same.
Ancillary Keywords
Data Set Progress
COMPLETE
Originating Center
Data Center
Distribution
Distribution Media:
FTP
Distribution Size:
71.5 KB total
Distribution Format:
MS Excel and DOC format
Personnel
Role:
INVESTIGATOR
Phone:
(949) 824-3936
Fax:
(949) 824-3874
Email:
esaltzma at uci.edu
Contact Address:
Department of Earth System Science
University of California, Irvine
City:
Irvine
Province or State:
CA
Postal Code:
92697-3100
Country:
USA
Publications/References
Aydin, M., E. S. Saltzman, W. J. De Bruyn, S. A. Montzka, J. H. Butler, and M. Battle. 2004. Atmospheric variability of methyl chloride over the last 300 years from an Antarctic ice core and firn air. Geophysical Research Letters. Vol. 31. L02109, doi: 10.1029/2003GL018750.
Creation and Review Dates
DIF Creation Date:
2005-09-27
Last DIF Revision Date:
2009-02-02
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