Solar dimming and its impact on estimating solar radiation from diurnal temperature range in China, 1961–2007

Ye, Jian‐Sheng; Li, Fengmin; Sun, Guojun; Guo, Anhong

doi:10.1007/s00704-009-0213-y

Cited by 37 publications

(42 citation statements)

References 29 publications

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“…Decreased NRD in the winter thus seems to be consistent with increased SSD in the LH and HHM during the same season (Table 4). A change in SR could alter the diurnal temperature range by influencing maximum temperatures (Padma Kumari et al, 2007;Ye et al, 2009). The increasing trend in maximum temperatures during the winter season in the Himalayan regions (Shrestha et al, 1999) is therefore consistent with the increasing trends of SSD in the HHM regions in the present study.…”

Section: Discussionsupporting

confidence: 76%

Sunshine duration is declining in Nepal across the period from 1987 to 2010

Neelam

Kobayashi

Jian

2015

J. Agric. Meteorol.

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We analyzed temporal changes of sunshine duration (SSD) and number of rainy days (NRD) in Nepal across its three physiographic regions: plains, low-hills, and high-hills and mountains for the period from 1987 to 2010 from records at 13 meteorological stations. We found declining trends in SSD (i.e., solar dimming) across Nepal at a rate of -0.20% per year, with the highest decline occurring during the post-monsoon season (-0.33% per year), followed by the premonsoon season (-0.24% per year). A close look at individual stations indicated that declines in pre-and post-monsoon seasons are common regional phenomena. By region, dimming was pronounced (-0.56% per year) in the plains at 0-300 m above sea level and gradually diminished as elevation rose. The NRD for the same 13 stations showed a significant declining trend (-0.20% per year), which suggests that the change in NRD is not a major driver of the decreased SSD in Nepal. We argue that the decline in SSD might be influenced by transboundary air pollution from the Indian subcontinent and biomass burning across the region as suggested by other studies.

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Section: Discussionsupporting

confidence: 76%

Sunshine duration is declining in Nepal across the period from 1987 to 2010

Neelam

Kobayashi

Jian

2015

J. Agric. Meteorol.

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“…For example, decadal variations in pan evaporation and sunshine duration measurements provide independent indication for dimming and subsequent brightening in various regions of the globe, such as in Europe, China, the former Soviet Union, South America, New Zealand, and on Pacific islands (Roderick and Farquhar 2002;Qian et al 2006;Sanchez-Lorenzo et al 2008, 2009Liley 2009;Raichijk 2011). The widely available data on the diurnal temperature range (DTR; the difference between daily maximum and minimum temperature) were shown to contain information on decadal changes in SSR, as they allow us to disentangle the solar (daytime) and thermal (nighttime) surface radiative heating (Liu et al 2004;Makowski et al 2009;Ye et al 2010). Terrestrial DTR observations display overall a distinct decrease from the 1950s to the 1980s caused by a decline in daily maximum temperatures, which are particularly affected by SSR dimming ).…”

Section: What Observations Tellmentioning

confidence: 99%

Enlightening Global Dimming and Brightening

Wild¹

2012

Bull. Amer. Meteor. Soc.

421

356

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“…These instruments included the Yanishevsky thermoelectric pyranometer for measuring SSR and diffuse solar radiation (DfSR) and the Yanishevsky thermoelectric actinometer for measuring direct solar radiation (DiSR) (Xia, 2010a;Ye et al, 2010;Tang et al, 2011), with respective error estimates of ≤5 % and ≤3 % . China started making its own instruments after 1993 and replaced the SSR/DfSR recorders with the DFY-4 pyranometer and the DiSR recorder with the DFY-3 pyrheliometer (Xia, 2010a;Ye et al, 2010;Tang et al, 2011), with errors not exceeding 5 % and 2 %, respectively . Data recorded by the instruments are governed by China Meteorological Administration (CMA) and are available at China Meteorological Data Sharing Service System (CMDS, http://cdc.cma.gov.cn/).…”

Section: Dimming and Brightening In Surface Solar Radiationmentioning

confidence: 99%

China's dimming and brightening: evidence, causes and hydrological implications

Wang

Yang

2014

Ann. Geophys.

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Abstract. There is growing evidence that, corresponding to global dimming and brightening, surface solar radiation and sunshine hours over China have undergone decadal fluctuations during the 1960s-2000s. The results of a number of these analyses are, however, very different. In this study, we synthesize reliable results and conclusively address recent advances and insufficiencies in studies on dimming and brightening in China. A temporally and spatially prevalent dimming trend is noted in surface solar radiation, direct solar radiation and sunshine hours since the 1960s. Meanwhile, the changing trend in diffuse solar radiation is less pronounced. Increasing anthropogenic aerosol loading is regarded as the most plausible explanation for China's dimming. The brightening trend since 1990, which mainly occurs in southeastern China and in the spring season, is weak and insignificant. The reverse in the solar radiation trend is associated with climate change by cloud suppression and slowdown in anthropogenic emissions. The future solar radiation trend in China could largely depend on the development of air quality control. Other potential driving factors such as wind speed, water vapor and surface albedo are also non-negligible in specific regions of China. Hydrological implications of dimming and brightening in China lack systematic investigation. However, the fact that solar radiation and pan evaporation trends in China track a similar curve in 1990 further suggests that the pan evaporation paradox could be partly resolved by changes in solar radiation.

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Solar dimming and its impact on estimating solar radiation from diurnal temperature range in China, 1961–2007

Cited by 37 publications

References 29 publications

Sunshine duration is declining in Nepal across the period from 1987 to 2010

Sunshine duration is declining in Nepal across the period from 1987 to 2010

Enlightening Global Dimming and Brightening

China's dimming and brightening: evidence, causes and hydrological implications

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