Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/2350
Title: Digitization of Kodaikanal Data
Authors: Singh, J
Muneer, S
Bagare, S. P
Rangarajan, K. E
Ramesh, K. B
Varghese, B. A
Samson, J. P. A
Devendran, P
Hariharan, G
Keywords: Digitization;Spectroheliogram;Solar synoptic data
Issue Date: 2003
Publisher: Astronomical Society of India
Citation: BASI, Vol. 31, No. 2, pp. 111 - 115
Abstract: In this report we describe a digitizer developed in the laboratories of the Indian Institutes of Astrophysics (IIA) to digitize the large amount of solar synoptic data obtained since 1904 at Kodaikanal. We show a sample spectrum, an Hα Spectroheliogram, and a Ca+K spectroheliogram digitized using this equipment. The digitized data will be used to study the temporal variations in photospheric and chromospheric rotation rates, the solar differential rotation, the evolution of sunspots & Hα filaments, and in the evaluation of Ca+K plage and network indices. The digitized data will be made available to the scientific community as a part of IIA's astronomical data archive.
URI: http://hdl.handle.net/2248/2350
???metadata.dc.relation.uri???: http://adsabs.harvard.edu/abs/2003BASI...31..111S
Appears in Collections:BASI Publications

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