Analysis of 40 years of solar radiation data from China, 1961-2000

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

38

Atmospheric Composition And Structure: Cloud Physics And Chemistry, Global Change: Climate Variability (1635, 3305, 3309, 4215, 4513), Atmospheric Processes: Radiative Processes

Scientific paper

Trends in Chinese global radiation, direct horizontal radiation, diffuse radiation, clearness index, diffuse fraction and percentage of possible sunshine duration for the period 1961-2000 were evaluated based on data for daily surface solar radiation and monthly sunshine duration. Annual means for all six variables were calculated for each station and for China as a whole. Linear regression analysis was used to characterize long-term annual trends in these variables. Over the latter half of the 20th century, there have been significant decreases in global radiation (-4.5 W/m2 per decade), direct radiation (-6.6 W/m2 per decade), clearness index (-1.1% per decade), and the percentage of possible sunshine duration (-1.28% per decade), but diffuse fraction has increased (1.73% per decade). Although there is some evidence that conditions have improved in the last decade, the consistent spatial and temporal variations of these variables support the theory that increased aerosol loadings were at least partially responsible for the observed decreases in global radiation and direct radiation, the clearness index, and the monthly percentage of possible sunshine duration over much of China.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Analysis of 40 years of solar radiation data from China, 1961-2000 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Analysis of 40 years of solar radiation data from China, 1961-2000, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis of 40 years of solar radiation data from China, 1961-2000 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1217901

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.