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Firn record of trace gases relevant to atmospheric chemical change (FIRETRACC) project data: BADC help file

Sturges, WT (2002) Firn record of trace gases relevant to atmospheric chemical change (FIRETRACC) project data: BADC help file. Documentation. British Atmospheric Data Centre. (Submitted)

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Official URL: http://badc.nerc.ac.uk/data/firetracc/firetracc_he...

Abstract

This project aims to use "firn air" - air trapped in deep polar snow - to examine the record of trace gases in both the Northern and Southern hemispheres over the last 80 to 100 years. Unlike ice cores, firn extraction yields large volumes (tens of litres) of air for analysis. This allows samples to be circulated between laboratories for repeated analysis of different suites of trace gases at ultra-trace levels. This will enable a detailed picture of the atmospheric composition to be built up in air of different ages. Extensive modelling studies will then be conducted to determine the trends of short-lived reactive species such as ozone, hydroxyl radical, peroxide, formaldehyde, and reactive oxides of nitrogen. Hence we will determine the extent of human impact on the trace gas composition and photooxidant chemistry of the troposphere.

Item Type:Monograph (Documentation)
Subjects:Chemistry
Atmospheric Sciences
ID Code:96
Deposited By:Ms Belinda Robinson
Deposited On:25 Sep 2008 14:20
Last Modified:17 Oct 2008 13:07

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