利用高精度光谱仪在西藏珠峰地区进行为期一年半的太阳紫外光谱观测。观测发现：珠峰冬至附近晴天当地正午太阳紫外线对波长积分值为40.4916 W/m2,而夏至附近晴天积分值达67.5847 W/m2;春分和秋分附近晴天太阳紫外光谱特征基本相似,正午太阳紫外线总量分别为56.3004和58.4680 W/m2,发现珠峰地区太阳紫外光谱强度随太阳高度角的升高而增大,增大速率逐渐变小。使用AM1.5和AM0标准太阳光谱与珠峰和安徽冬至太阳紫外光谱进行对比研究,安徽冬至当地正午太阳紫外线积分值仅占珠峰的60.66%;定性研究了影响珠峰地面太阳紫外光谱的主要因子。
Abstract
Mount Everest in Tibet is one of the regions with the strongest solar ultraviolet radiation in the world. The solar ultraviolet spectrum was observed for one and a half years in the Mount Everest region of Tibet with a high-precision spectrometer. It is found through the observation that on clear days near the winter solstice of Mount Everest, the local noon solar ultraviolet radiation has an integral value of 40.4916W/m2 for wavelength, while on clear days near the summer solstice, the integral value reaches 67.5847W/m2; The characteristics of the solar ultraviolet spectrum on clear days near the spring and autumn equinoxes are basically similar, with a total amount of 56.3004 W/m2 and 58.4680 W/m2 at noon, respectively. It is found that the intensity of the solar ultraviolet spectrum in the Everest region increases with the increase of the solar altitude angle, and the rate of increase gradually decreases. A comparative study was conducted using AM1.5 and AM0 standard solar spectra with the UV spectra of Mount Everest and Anhui Winter Solstice. The local noon solar UV integral value of Anhui Winter Solstice only accounts for 60.66% of Mount Everest; Qualitatively studied the main factors affecting the ground solar ultraviolet spectrum of Mount Everest.
关键词
珠峰 /
高海拔 /
晴天 /
太阳紫外光谱 /
观测
Key words
Mount Everest /
nigh altitude /
clear day /
solar ultraviolet spectrum /
observation
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参考文献
[1] 郜婧婧, 吴昊, 戴至修, 等. 中国紫外线强度预报方法研究[J]. 气象与环境学报, 2018, 34(4): 139-144.
GAO J J, WU H, DAI Z X, et al.Research on the method of forecasting ultraviolet intensity in China[J]. Journal of meteorology and environment, 2018, 34(4): 139-144.
[2] HUSSAIN M B, AL-HADIDI S H, ERFANIAN M B, et al. Photodegradation and its effect on plant litter decomposition in terrestrial ecosystems: a systematic review[J]. Soil systems, 2023, 7(1): 6.
[3] BERNARD J J, GALLO R L, KRUTMANN J.Photoimmunology: how ultraviolet radiation affects the immune system[J]. Nature reviews immunology, 2019, 19(11): 688-701.
[4] LEE D G, LEE S B, KIM M J, et al.Effect of solar radiation aging on the properties of epoxy polymers[J]. Journal of the Korean Society for Aeronautical & Space Sciences, 2016, 44(9): 769-774.
[5] 周伟华, 殷克东. 紫外线B对海洋生态系统的影响[J]. 生态环境, 2005, 14(3): 434-438.
ZHOU W H, YIN K D.Effects of ultraviolet radiation B on marine ecosystem[J]. Ecology and environmental sciences, 2005, 14(3): 434-438.
[6] 普多旺, 拉瓜登顿, 盛敏, 等. 中国北纬30°地面太阳光谱观测[J]. 光谱学与光谱分析, 2023, 43(6): 1881-1887.
PU D W, LAGBA T, SHENG M, et al.Surface solar spectral observation along 30°N in China[J]. Spectroscopy and spectral analysis, 2023, 43(6): 1881-1887.
[7] 苏雁, 姬尊雨. 臭氧层破坏导致生物大灭绝的直接证据被发现[N]. 光明日报, 2023-01-07.
SU Y, JI Z Y. Direct evidence of mass extinction due to ozone layer depletion was found[N]. Guangming daily, 2023-01-07.
[8] 吴鲁阳, 王美丽, 张振文. 紫外线(UV)-B增强对植物的影响研究[J]. 中国农学通报, 2005, 21(9): 222-227.
WU L Y, WANG M L, ZHANG Z W.Advance in research on effect of enhanced UV-B radiation on plants[J]. Chinese agricultural science bulletin, 2005, 21(9): 222-227.
[9] 除多. 近几年西藏高原大气臭氧总量变化特征[J]. 西藏科技, 2003(4): 28-31.
CHU D.Variation characteristics of total atmospheric ozone in Tibet Plateau in recent years[J]. Tibet’s science and technology, 2003(4): 28-31.
[10] NORSANG G, KOCBACH L, TSOJA W, et al.Ground-based measurements and modeling of solar UV-B radiation in Lhasa, Tibet[J]. Atmospheric environment, 2009, 43(8): 1498-1502.
[11] NORSANG G, KOCBACH L, STAMNES J, et al.Spatial distribution and temporal variation of solar UV radiation over the Tibetan Plateau[J]. Applied physics research, 2011, 3(1): 37-46.
[12] NORSANG G, CHEN Y C, PINGCUO N M, et al.Comparison of ground-based measurements of solar UV radiation at four sites on the Tibetan Plateau[J]. Applied optics, 2014, 53(4): 736-747.
[13] 诺桑, 晋亚铭, 措加旺姆, 等. 西藏地面太阳总辐射与紫外线的观测[J]. 光谱学与光谱分析, 2019, 39(6): 1683-1688.
NORSANG G, JIN Y M, TSOJA W, er al. Observation of total solar radiation and ultraviolet rays on the ground in Tibet[J]. Spectroscopy and spectral analysis, 2019, 39(6): 1683-1688.
[14] 刘娟. 西藏太阳红斑紫外线时空分布观测研究[D]. 拉萨: 西藏大学, 2021.
LIU J.Observation and study on temporal and spatial distribution of ultraviolet rays in solar erythema in Tibet[D]. Lasa: Tibet University, 2021.
[15] 王倩, 拉瓜登顿, 普多旺, 等. 拉萨和北京太阳光谱观测研究[J]. 科技传播, 2022, 14(9): 146-149.
WANG Q, LAGBA T, PU D W, et al.Study on solar spectrum observation in Lhasa and Beijing[J]. Public communication of science & technology, 2022, 14(9): 146-149.
基金
国家自然科学基金（41867041）; 西藏大学“太阳能创新团队与实验平台建设
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