Solar Irradiance Reconstruction (Lean, 2004)Entry ID: NOAA_NCDC_PALEO_2004-035
Abstract: Updated solar irradiance reconstruction. (See also Lean et al., 1995).
Included are time series of annual mean irradiance from 1610 to 2000
of just the 11 year solar irradiance cycle, plus the 11 year
cycle with a background component. See Lean (2000) for discussion of
the amplitude of the background component.
Because of the dependence of the Sun's irradiance on solar activity,
reductions ... from contemporary levels are expected during the
seventeenth century Maunder Minimum. New reconstructions of spectral
irradiance are developed since 1600 with absolute scales traceable to
spacebased observations. The long-term variations track the envelope
of group sunspot numbers and have amplitudes consistent with the range
of Ca II brightness in Sun-like stars. Estimated increases since 1675
are 0.7%, 0.2% and 0.07% in broad ultraviolet, visible/near infrared
and infrared spectral bands, with a total irradiance increase of 0.2%.
(Click for Interactive Map)
Data Set Citation
Dataset Originator/Creator: Lean, J.
Dataset Title: Solar Irradiance Reconstruction
Dataset Series Name: GBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2004-035
Dataset Release Date: July 2004
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Issue Identification: 2004-035
Other Citation Details: NOAA/NCDC Paleoclimatology ProgramOnline Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/climate_forcing/solar_variab...
Start Date: 1610-01-01Stop Date: 2000-12-31
Paleo Temporal Coverage
Paleo Start Date: 400 ybp
Paleo Stop Date: 0 ybp
Temporal Resolution: yearly
Data Set Progress
Distribution Media: online www
Distribution Format: ascii
Email: jlean at ssd5.nrl.navy.mil
Code 7673L Naval Research Laboratory
Province or State: DC
Postal Code: 20375
Lean, J. 2000. Evolution of the Sun's Spectral Irradiance Since the Maunder Minimum. Geophysical Research Letters, Vol. 27, No. 16, pp. 2425-2428, Aug. 15, 2000.
Lean, J., J. Beer, and R. Bradley. 1995. Reconstruction of Solar Irradiance Since 1610: Implications for Climate Change. Geophysical Research Letters, v.22, No. 23, pp 3195-3198, December 1, 1995.
Creation and Review Dates
DIF Creation Date: 2004-09-17
Last DIF Revision Date: 2004-09-17