From Dimming to Brightening: Decadal Changes in Solar Radiation at Earth's Surface

@article{Wild2005FromDT,
  title={From Dimming to Brightening: Decadal Changes in Solar Radiation at Earth's Surface},
  author={Martin Wild and Hans Gilgen and Andreas Roesch and Atsumu Ohmura and Charles N. Long and Ellsworth G. Dutton and Bruce W. Forgan and Ain Kallis and Viivi Russak and A. V. Tsvetkov},
  journal={Science},
  year={2005},
  volume={308},
  pages={847 - 850}
}
Variations in solar radiation incident at Earth's surface profoundly affect the human and terrestrial environment. A decline in solar radiation at land surfaces has become apparent in many observational records up to 1990, a phenomenon known as global dimming. Newly available surface observations from 1990 to the present, primarily from the Northern Hemisphere, show that the dimming did not persist into the 1990s. Instead, a widespread brightening has been observed since the late 1980s. This… Expand

Topics from this paper

Relevance of decadal variations in surface radiative fluxes for climate change
Recent evidence suggests that radiative fluxes incident at Earth’s surface are not stable over time but undergo significant changes on decadal timescales. This is not only found in the thermalExpand
Global dimming and brightening: A review
[1] There is increasing evidence that the amount of solar radiation incident at the Earth's surface is not stable over the years but undergoes significant decadal variations. Here I review theExpand
Recent regional surface solar radiation dimming and brightening patterns: inter‐hemispherical asymmetry and a dimming in the Southern Hemisphere
Recent variations in surface solar radiation (SSR) at the beginning of the 21st century (2000–2007) were determined at scales ranging from local/regional to hemispherical/global, on the basis ofExpand
Global dimming and brightening: An update beyond 2000
TLDR
Overall, the available data suggest continuation of the brightening beyond the year 2000 at numerous locations, yet less pronounced and coherent than during the 1990s, with more regions with no clear changes or declines. Expand
Enlightening Global Dimming and Brightening
A fundamental determinant of climate and life on our planet is the solar radiation (sunlight) incident at the Earth's surface. Any change in this precious energy source affects our habitatsExpand
SOLAR DIMMING / BRIGHTENING WITHIN THE MEDITERRANEAN
The energy source of life in our planet, which largely determines the climatic conditions, is the solar radiation that incidents on the earth's surface. The amount of solar energy that reaches onExpand
Decadal changes in radiative fluxes at land and ocean surfaces and their relevance for global warming
Anthropogenic interference with climate occurs primarily through modification of radiative fluxes in the climate system. Increasing releases of greenhouse gases into the atmosphere lead to anExpand
Two‐decadal aerosol trends as a likely explanation of the global dimming/brightening transition
[1] Global average trends in solar radiation reaching the Earth's surface show a transition from dimming to brightening that occurred in about 1990. We show that the inter-annual trend in solarExpand
The Role of Widespread Surface Solar Radiation Trends in Climate Change: Dimming and Brightening
Publisher Summary This chapter provides some background material on solar radiation and reviews some of the work done on the changing global radiation (Eg↓) and its influences on earth's climate. TheExpand
Global dimming and global brightening - an analysis of surface radiation and cloud cover data in northern Europe.
In the present study, surface solar radiation data from 11 stations in northwestern Europe and the European Arctic are presented in the context of the ongoing discussion on global dimming and globalExpand
...
1
2
3
4
5
...

References

SHOWING 1-7 OF 7 REFERENCES
Do Satellites Detect Trends in Surface Solar Radiation?
TLDR
An estimate of global temporal variations in S is presented by using the longest available satellite record and observing an overall increase in S from 1983 to 2001 at a rate of 0.16 watts per square meter (0.10%) per year. Expand
Changes in Earth's Reflectance over the Past Two Decades
TLDR
An overlapping period of earthshine measurements of Earth's reflectance with satellite observations of global cloud properties to construct from the latter a proxy measure of Earth’s global shortwave reflectance, which shows a steady decrease from 1984 to 2000, with a strong climatologically significant drop after 1995. Expand
Changes in Earth's Albedo Measured by Satellite
TLDR
The satellite data show that the last four years are within natural variability and fail to confirm the 6% relative increase in albedo inferred from observations of earthshine from the moon. Expand
Aerosols, Climate, and the Hydrological Cycle
TLDR
Human activities are releasing tiny particles (aerosols) into the atmosphere that enhance scattering and absorption of solar radiation, which can lead to a weaker hydrological cycle, which connects directly to availability and quality of fresh water, a major environmental issue of the 21st century. Expand
Global dimming: a review of the evidence for a widespread and significant reduction in global radiation with discussion of its probable causes and possible agricultural consequences
TLDR
This review analyzes the most accurate measurements, those made with thermopile pyranometers, and concludes that the reduction has globally averaged per year, equivalent to a reduction of 2.7% per decade, and now totals 20 W m−2, seven times the errors of measurement. Expand
The cause of decreased pan evaporation over the past 50 years.
TLDR
It is shown that the decrease in evaporation is consistent with what one would expect from the observed large and widespread decreases in sunlight resulting from increasing cloud coverage and aerosol concentration. Expand
Is the Hydrological Cycle Accelerating?
As global climate warms, most atmospheric scientists believe that evaporation will increase and as a result, the hydrological cycle will accelerate. But results from a network of water-filled pansExpand