西藏珠峰晴天太阳紫外光谱观测  

CLEAR DAY SOLAR ULTRAVIOLET SPECTRAL OBSERVATION OF MOUNT EVEREST IN TIBET

作　　者：王萌萌 措加旺姆[1] 盛敏 拉瓜登顿[1] 周毅 诺桑[1] Wang Mengmeng;Tsoja Wangmo;Sheng Min;Lagba Tunzhup;Zhou Yi;Norsang Gelsor(Solar UV Labatory,Tibet University,Lhasa 850000,China)

机构地区：[1]西藏大学太阳紫外线实验室,拉萨850000

出　　处：《太阳能学报》2025年第4期381-386,共6页Acta Energiae Solaris Sinica

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。

摘　　要：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/m^(2),而夏至附近晴天积分值达67.5847 W/m^(2);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/m^(2),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。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/m^(2) for wavelength,while on clear days near the summer solstice,the integral value reaches 67.5847W/m^(2);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/m^(2) and 58.4680 W/m^(2) 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 

分 类 号：P182.3[天文地球—天文学]