Abstract 80

The long-term trend of Ozone in South Atlantic Magnetic Anomaly Zone

Marta Maria Zossi^{1, 2}, Bruno Santiago Zossi^{1, 2}, Ana Georgina Elias^{1, 2}, Gaston Tannure¹

¹Departamento de Fisica. Facultad de Ciencias Exactas y Tecnologia. Universidad Nacional de Tucuman., San Miguel de Tucuman, Argentina
²Consejo Nacional de Investigaciones Cientificas y Tecnicas, CONICET, San Miguel de Tucuman, Argentina

The South Atlantic Magnetic Anomaly (SAMA), where the total ﬁeld intensity is low, is one of the most outstanding features of the geomagnetic ﬁeld, presently occupying the area between South America and South Africa. SAMA is dynamic and its strength, shape and size vary in different time scales. The SAMA center has a westward drift may be related to the westward drift of the geomagnetic axis of the Earth. The low magnetic ﬁeld on SAMA zone facilitates the entrance of high energy particles from the magnetosphere which may affect ozone content through its effect on NO compounds. In order to analyze this possible effect, the monthly mean of total ozone content (TOC) and of ozone content in three different layers of the middle atmosphere of Cachoeira Paulista station (22.68°S, 315.00 °E) included in the network of TOMS, is used, covering the period between 1980 to 2015.

Reference:

We-AM-1-O-03

Session:

Observations III

Presenter/s:

Marta Maria Zossi

Topic:

1) Observed trends and long term variations in the middle atmosphere

Presentation type:

Oral communication 15 min

Room:

Conference Room

Chair/s:

Christoph Jacobi

Date:

Wednesday, 21 September 2016

Time:

09:40 - 09:55

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