Solar Irradiance Variability Since 1978

@article{Frhlich2005SolarIV,
  title={Solar Irradiance Variability Since 1978},
  author={Claus Fr{\"o}hlich},
  journal={Space Science Reviews},
  year={2005},
  volume={125},
  pages={53-65}
}
  • C. Fröhlich
  • Published 7 March 2007
  • Environmental Science
  • Space Science Reviews
Since November 1978 a set of total solar irradiance (TSI) measurements from space is available, yielding a time series of more than 25 years. Presently, there are three TSI composites available, called PMOD, ACRIM and IRMB, which are all constructed from the same original data, but use different procedures to correct for sensitivity changes. The PMOD composite is the only one which also corrects the early HF data for degradation. The results from the detailed analysis of the VIRGO radiometry… Expand

Figures from this paper

Total solar irradiance variability: What have we learned about its variability from the record of the last three solar cycles?
Since November 1978 a set of total solar irradiance (TSI) measurements from space is available, yielding a time series of almost 30 years. Presently, there are three TSI composites available, calledExpand
Total Solar Irradiance Observations
The record of total solar irradiance (TSI) during the past 35 years has overlapping observations from space which can be merged to a composite, and three are available, namely the PMOD, the ACRIM andExpand
Determination of time-dependent uncertainty of the total solar irradiance records from 1978 to present
Aims . The existing records of total solar irradiance (TSI) since 1978 differ not only in absolute values, but also show different trends. For the study of TSI variability these records need to beExpand
Total solar irradiance since 1996: is there a long-term variation unrelated to solar surface magnetic phenomena?
Context. Total solar irradiance (TSI) has been measured with space-based instruments since 1978. The TSI during the recent solar minimum in 2009 has been lower than the two former minima around theExpand
The total solar irradiance during the recent solar minimum period measured by SOHO/VIRGO
TLDR
A new data-driven process to assess and correct instrument degradation using a machine-learning and data fusion algorithm, that does not require deep technical knowledge of the individual radiometers is presented. Expand
Evidence of a long-term trend in total solar irradiance
Aims. During the solar minimum of 2008, the value of total solar irradiance at 1 AU (TSI) was more than 0.2 Wm -2 lower than during the last minimum in 1996, indicating for the first time a directlyExpand
Modelling solar irradiance from ground-based photometric observations
Total solar irradiance (TSI) has been monitored from space since 1978, i.e. for about four solar cycles. The measurements show a prominent variability in phase with the solar cycle, as well asExpand
An Independent Review of Existing Total Solar Irradiance Records
With the advent of space-based total solar irradiance (TSI) observations about 35 years ago, researchers’ understanding of solar variability and its causes has greatly improved. ControversiesExpand
A reevaluation of the solar constant based on a 42-year total solar irradiance time series and a reconciliation of spaceborne observations
Abstract A reevaluation of the solar constant is undertaken here to take into account the progress in space radiometry that has occurred since the early 2000s. Various sources of spaceborne totalExpand
Total Solar Irradiance: What Have We Learned from the Last Three Cycles and the Recent Minimum?
The record of total solar irradiance (TSI) during the past 35 years shows similarities of the three solar cycles, but also important differences. During the recent minimum with an unusually longExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 21 REFERENCES
Observations of Irradiance Variations
Since November 1978 a complete set of total solar irradiance (TSI) measurements from space is available, yielding a time series of 21 years. From measurements made by different space radiometers (HFExpand
Solar irradiance variability and climate
Since November 1978 a complete set of total solar irradiance (TSI) measurements from space is available, yielding a time series of more than 23 years. From measurements made by different space-basedExpand
The Nimbus 7 solar total irradiance: A new algorithm for its derivation
The Nimbus 7 satellite has measured the solar total irradiance from November 1978 to July 1991 (153 months). These measurements are important both in solar physics and for climate change. To insureExpand
Total Solar Irradiance Variations: The Construction of a Composite and its Comparison with Models
Measurements of the total solar irradiance (TSI) during the last 18 years from spacecraft are reviewed. Corrections are determined for the early measurements made by the HF radiometer within the ERBExpand
Variations in total solar irradiance during solar cycle 22
In this study, we have attempted to model the variations in total solar irradiance from two spacecraft. Specifically, we have modeled the Earth Radiation Budget on the Nimbus 7 spacecraft and theExpand
Solar Irradiance Variability
Abstract The solar “constant” varies over time scales from minutes to years and decades. For the influence on the atmospheric energy budget time scales longer than a few days become important, forExpand
Long-term behaviour of space radiometers
Experience with the two types of radiometers in the experiment VIRGO on the ESA/NASA mission SOHO launched in December 1995 has revealed important information about the long-term behaviour of suchExpand
Reconstruction of solar irradiance variations in cycles 21-23 based on surface magnetic fields
Aims. We present a reconstruction of total solar irradiance (TSI) back to 1974, i.e. from the minimum of cycle 21 to the declining phase of cycle 23. We also present a cross-calibration between theExpand
The Sun's luminosity over a complete solar cycle
THE Active Cavity Radiometer Irradiance Monitor (ACRIM I), an instrument carried on NASA's Solar Maximum Mission satellite, measured the Sun's luminosity (total power outflow) from early 1980 to lateExpand
Long-term total solar irradiance variability during sunspot cycle 22
Total solar irradiance measurements from the 1984-1993 Earth Radiation Budget Satellite (ERBS) active cavity radiometer and 1978-1993 Nimbus 7 transfer cavity radiometer spacecraft experiments areExpand
...
1
2
3
...