Details

Autor(en) / Beteiligte

• Chen, Z.H.
• Cheng, S.Y.
• Li, J.B.
• Guo, X.R.
• Wang, W.H.
• Chen, D.S.

Titel

Relationship between atmospheric pollution processes and synoptic pressure patterns in northern China

Ist Teil von

• Atmospheric environment (1994), 2008-08, Vol.42 (24), p.6078-6087

Ort / Verlag

Oxford: Elsevier Ltd

Erscheinungsjahr

2008

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The air pollution index (API) sequences in 10 cities in northern China and the synoptic pressure patterns during autumn and winter from 2002 to 2006 were analyzed with diagnostic and statistical methods. The results showed that the air qualities in northern China had a prominent correlation with the pressure systems. It revealed that (a) the increasing phase of API was associated with high pressure and the successive low pressure, (b) the preceding part of front (i.e. the retral part of low pressure) was associated with the maximum of API values during a cycle of air pollution process, (c) the pressure systems with high gradient led to the decrease of API, and (d) the synoptic pressure patterns and their evolvements were the main causes of regional air pollution processes. These relations can be used to analyze the variation characteristics and mechanism of regional atmosphere pollution process, and provide important basis for the qualitative prediction, control, and management of regional air pollution problems.