A study of the development of global solar activity in the 23rd solar cycle based on radio observations with the Nobeyama radio heliograph. I. Latitude distribution of the active and dark regions

Details A study of the development of global solar activity in the 23rd solar cycle based on radio observations with the Nobeyama radio heliograph. I. Latitude distribution of the active and dark regions A study of the development of global solar activity in the 23rd solar cycle based on radio observations with the Nobeyama radio heliograph. I. Latitude distribution of the active and dark regions

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...389..618g&link_type=abstract

Astronomy and Astrophysics, v.389, p.618-623 (2002)

Astronomy and Astrophysics

Astrophysics

9

Scientific paper

Daily radio maps of the Sun at the wavelength of 1.76 cm were used to analyze the parameters of solar activity at all heliographic latitudes for the period 1992-2001. As a criterion of the level of solar activity, we analyzed the area/number of regions with an excess of brightness above a certain fixed level as well as regions with brightness below a certain level. The distribution of such ``bright'' and ``dark'' regions with heliographic latitude as function of time was found. Special attention was paid to the high latitude polar regions where the ways of analyzing solar activity are rather limited and have no generally accepted methods. The results are compared with some other indices of high latitude solar activity, such as polar faculae and magnetic field measurements. They appear to be in general agreement with the radio observations. The advantage of using radio observations is a more homogeneous database and a stable method of analysis.

Affiliated with

Also associated with

No associations

Rating

A study of the development of global solar activity in the 23rd solar cycle based on radio observations with the Nobeyama radio heliograph. I. Latitude distribution of the active and dark regions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A study of the development of global solar activity in the 23rd solar cycle based on radio observations with the Nobeyama radio heliograph. I. Latitude distribution of the active and dark regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A study of the development of global solar activity in the 23rd solar cycle based on radio observations with the Nobeyama radio heliograph. I. Latitude distribution of the active and dark regions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-958887