Transport of short-lived species into the Tropical Tropopause Layer

We use NAME, a trajectory model, to investigate the routes and timescales over which air parcels reach the tropical tropopause layer (TTL). Our aim is to assist the planning of aircraft campaigns focussed on improving knowledge of such transport. We focus on Southeast Asia and the Western Pacific wh...

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Bibliographic Details
Published in:Atmospheric chemistry and physics 2012-07, Vol.12 (14), p.6309-6322
Main Authors: Ashfold, M. J, Harris, N. R. P, Atlas, E. L, Manning, A. J, Pyle, J. A
Format: Article
Language:English
Subjects:
Analysis
Marine
Troposphere
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Summary:We use NAME, a trajectory model, to investigate the routes and timescales over which air parcels reach the tropical tropopause layer (TTL). Our aim is to assist the planning of aircraft campaigns focussed on improving knowledge of such transport. We focus on Southeast Asia and the Western Pacific which appears to be a particularly important source of air that enters the TTL. We first study the TTL above Borneo in November 2008, under neutral El Niño/Southern Oscillation (ENSO) conditions. Air parcels (trajectories) arriving in the lower TTL (below ~15 km) are most likely to have travelled from the boundary layer (BL;
ISSN:1680-7324
1680-7316
1680-7324
DOI:10.5194/acp-12-6309-2012