[Location: Location_Category='SPACE', Location_Type='SOLAR REGION', Location_Subregion1='CHROMOSPHERE']
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Solar Chromospheric Variability from the National Solar Observatory (NSO)
Entry ID:
NSO_CA2
Summary
Abstract:
Observations of the disk-integrated solar Ca II K-line are made using
the Evans Coronal Facility at The National Solar Observatory/ Sacramento Peak. A coelostat is used to feed the horizontal Littrow spectrograph and the spectrum from 3898-3954 angstroms is recorded by scanning the grating and digitizing the output of a photomultiplier. About 50-150 spectral scans are made each day. From 1976-1983 data was obtained on 10% of all days, while from 1984-present data is obtained on about 45% of all days. For more information see: http://www.sunspot.noao.edu/nsosp/data/cak_mon.html Data are also available from NOAA/NESDIS/NGDC Solar-Terrestrial Physics Program at: http://www.ngdc.noaa.gov/stp/stp.html Temporal Coverage
Start Date:
1976-01-01
Location Keywords
Science Keywords
ISO Topic Category
Platform
Instrument
Ancillary Keywords
Originating Center
Data Center
Personnel
Role:
INVESTIGATOR
Role:
DIF AUTHOR
Phone:
505-434-7039
Fax:
505-434-7029
Email:
skeil at sunspot.noao.edu
Contact Address:
National Solar Observatory
P.O. Box 62
City:
Sunspot
Province or State:
NM
Postal Code:
88349
Country:
USA
Creation and Review Dates
Last DIF Revision Date:
2006-12-18
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