[Alumnos] CHARLA ESTE VIERNES 27 DR. KAZUO MAKITA

[Antonio Trípodi]

ESTIMADOS DOCENTES INVESTIGADORES, GRADUADOS Y ALUMNOS:

             ESTE VIERNES 27 A LAS 11,00 HS. BRINDARÁ UNA CHARLA EN EL SALÓN MERIDIANO EL DR. KAZUO MAKITA.

TÍTULO: "IMAGING RIOMETER OBSERVATIONIN SOUTH ATLANTIC ANOMALY BY KAZUO MAKITA" 

Abstract
South America Riometer Network (SARINET) is intended to study ionosphere behavior due to the precipitating radiation belt particles in the South Atlantic Magnetic Anomaly (SAA). SAMA is characterized as an area in which the geomagnetic field has its lowest intensity and is located at the Southern part of South America. ?????????????????????????????????????

In order to study the ionosphere phenomena in the SAA, imaging riometer (also single beam riometer) was installed at Southern Space Observatory (SSO) in Sao Martinho da Serra (29.7S, 53.2W), RS. Brazil. The SSO is located near the center of SAA region, where the intensity of geomagnetic field falls to 22000nT. The second and third imaging riometer(also single beam riometer) were installed at Chile. One is Punta Arenas (53.1S, 70.9W) and other in Concepcion(36.8S, 73.0W). The forth imaging riometer (also single beam riometer) was installed at Kakioka geomagnetic observatory (36.2N,140.2E) in Japan. We also installed the fifth imaging riometer at Trelew geomagnetic observatory (43.3S, 65.4W), Argentina in 2009. 

  We analyzed imaging riometer data and found that the Cosmic Noise Absorption(CNA) are observed in associated with polar region disturbances. We also examined GOSE satellite data and found that the sharp decreasing of electron flux at GOES data is related with CNA at SSO IRIS data.

Since the intensity of geomagnetic field is rapidly decreasing now, especially in South America, Antarctica and South Atlantic Ocean area, so the size of SAMA will be expanded and the quantity of precipitating particles must be increased in these regions year by year. The main objective of our research is to predict the future earth environment under the extreme weak geomagnetic field condition. 

 

 

 
------------ próxima parte ------------
Se ha borrado un adjunto en formato HTML...
URL: <https://www.fcaglp.unlp.edu.ar/mailman/private/alumnos/attachments/20100825/b50c7a85/attachment.htm>