Solar Irradiance Reconstruction (Lean, 2004)
Entry ID: NOAA_NCDC_PALEO_2004-035

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Summary
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%.

Related URL
Link: GET DATA
Description: Access to documentation and data for Lean 2000 solar irradiance
reconstruction


Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0

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 Program
Online Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/climate_forcing/solar_variab...


Temporal Coverage
Start Date: 1610-01-01
Stop Date: 2000-12-31


Paleo_Temporal_Coverage
Paleo Start Date: 400 ybp
Paleo Stop Date: 0 ybp
Chrono Unit:


Location Keywords
GEOGRAPHIC REGION > GLOBAL


Data Resolution
Temporal Resolution: yearly


Science Keywords
ATMOSPHERE >ATMOSPHERIC RADIATION >SOLAR IRRADIANCE    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ACTIVITY >SOLAR IRRADIANCE    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION


Project
PAGES >Past Global Changes, IGBP    [Information]


Keywords
solar constant
solar irradiance
paleoclimate
Maunder Minimum
solar irradiance reconstruction


Data Set Progress
COMPLETE


Originating Center
NOAA/NCDC


Data Center
World Data Center for Paleoclimatology, Boulder    [Information]
Data Center URL: http://www.ncdc.noaa.gov/paleo/

Data Center Personnel
Name: WDC/PALEOCLIMATOLOGY, BOULDER
Phone: +1 (303) 497-6160
Fax: +1 (303) 497-6513
Email: paleo at noaa.gov
Contact Address:
World Data Center for Paleoclimatology
NOAA/NCDC Code E/GCx3
325 Broadway
City: Boulder
Province or State: CO
Postal Code: 80303
Country: USA



Distribution
Distribution_Media: online www
Distribution_Format: ascii
Fees: none


Personnel
JUDITH LESLEY LEAN
Role: INVESTIGATOR
Phone: 202-767-5116
Fax: 202-404-7997
Email: jlean at ssd5.nrl.navy.mil
Contact Address:
Code 7673L
Naval Research Laboratory
City: Washington
Province or State: DC
Postal Code: 20375
Country: USA


Publications/References
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

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