本文主要研究内容
作者张悟颖（2019）在《疏勒河流域地面太阳辐射特征及再分析辐射资料适用性研究》一文中研究指出：地球大气上层太阳辐射的时间变化和空间分布是引起地球上各种天气现象和气候变化的最主要根源,太阳辐射能随时间的长期变化是当前全球气候变化的重要组成部分。传统研究辐射时空变化特征依赖于各种实测资料和数据,可能会存在一定的误差。近年来,再分析资料作为一种重要的气象数据来源,在大气科学领域中发挥的作用越发重要。本文利用疏勒河上游老虎沟流域4200m高寒草甸区和海拔4550m冰川消融区两处的自动气象站2010—2013年的向下短波辐射,向上短波辐射和净短波辐射对疏勒河流域的地面太阳辐射的年、季节的时间尺度和空间尺度的变化特征进行了分析;并利用实测资料,对疏勒河流域的三种再分析辐射资料的适用性进行了评估。本文主要得到以下几点结论:(1)疏勒河上游地面太阳辐射的时间变化如下,在年变化特征方面,疏勒河流域地区的向下短波辐射和净短波辐射具有明显的年变化特征,呈单峰型;向下短波辐射和净短波辐射在1-6月增加,并达到峰值,在6月-9月有小幅度波动减少,随后减少,在12月或来年1月减少至最小值。向上短波辐射无明显规律,在4200m高寒草甸区,向上短波辐射最大值出现在3-5月,最小值出现在7-8月;冰川消融区的最大值出现在6-7月,最小值出现在1月或12月。季节变化特征方面,将高寒草甸区分为生长季和非生长季,冰川消融区分为湿季和干季。4200m测站的辐射三分量的变化波动较大。向下短波辐射季节非生长季中在1-5月增长,9-12月减小。向上短波辐射季节非生长季中在1-5月和9-12月都呈现先增加后减小的趋势。净短波辐射则是1-5月基本保持匀速增长,9-12月基本稳定减少。向上短波辐射的季节变化特征不明显。冰川消融区则是向下短波辐射波动比较大,向上短波辐射季和净短波辐射在干湿季的变化波动较小。向下短波辐射和净短波辐射均在1-5月增长,9-12月减小。向上短波辐射季节湿季中在1-5月和9-12月都呈现波动趋势。(2)疏勒河上游地面太阳辐射的空间变化如下,两个实测站点的辐射三分量呈现较为不同的空间差异。4550m测站比4200m测站接收到的向下短波辐射通量大,向上短波辐射较大,净短波辐射通量较小。4200m测站所在的高寒草甸区的短波辐射的离散程度明显大于冰川消融区。(3)再分析辐射精度在年和季节尺度上的评估结果如下,首先在年尺度上,三套再分析辐射资料都能比较好的拟合向下短波辐射和净短波辐射的年变化规律,但只有Har能准确反映向下短波辐射和净辐射在每年6-7月小幅度的震荡减少。总体而言,ERA-Interim的低估程度最大,CERA-SAT其次,Har表现出高估,但偏差程度很小,精度最高。三套再分析资料对于向上短波辐射的精度很低。在季节尺度上,三套再分析辐射资料可以反映出不同季节向下短波辐射和净辐射的变化曲线并呈现出不同程度的低估,但只有Har能准确反映向下短波辐射在每日的震荡变化。在向上短波辐射的拟合方面,三套再分析资料的适用性都较低。从各个评估指标来看,ERA-Interim的偏差最大,CERA-SAT其次,Har拟合程度最好,精度最高。总体而言,Har的精度最高,在研究区的适用性最好。(4)再分析辐射精度在空间尺度上的评估结果如下,三套再分析辐射资料都可以基本拟合出向下短波辐射和净短波辐射,Har在海拔4200m测站所代表的高寒草甸区和海拔4550m测站所代表的冰川消融区的精度最高,CERA-SAT的适用性其次,ERA-Interim的精度相对较低;两处不同下垫面的区域中,三套再分析资料在模拟向上短波辐射的表现都很差。再分析资料的精度在4550m的冰川消融区的精度要略好于4200m处的高寒草甸区。
Abstract
de qiu da qi shang ceng tai yang fu she de shi jian bian hua he kong jian fen bu shi yin qi de qiu shang ge chong tian qi xian xiang he qi hou bian hua de zui zhu yao gen yuan ,tai yang fu she neng sui shi jian de chang ji bian hua shi dang qian quan qiu qi hou bian hua de chong yao zu cheng bu fen 。chuan tong yan jiu fu she shi kong bian hua te zheng yi lai yu ge chong shi ce zi liao he shu ju ,ke neng hui cun zai yi ding de wu cha 。jin nian lai ,zai fen xi zi liao zuo wei yi chong chong yao de qi xiang shu ju lai yuan ,zai da qi ke xue ling yu zhong fa hui de zuo yong yue fa chong yao 。ben wen li yong shu le he shang you lao hu gou liu yu 4200mgao han cao dian ou he hai ba 4550mbing chuan xiao rong ou liang chu de zi dong qi xiang zhan 2010—2013nian de xiang xia duan bo fu she ,xiang shang duan bo fu she he jing duan bo fu she dui shu le he liu yu de de mian tai yang fu she de nian 、ji jie de shi jian che du he kong jian che du de bian hua te zheng jin hang le fen xi ;bing li yong shi ce zi liao ,dui shu le he liu yu de san chong zai fen xi fu she zi liao de kuo yong xing jin hang le ping gu 。ben wen zhu yao de dao yi xia ji dian jie lun :(1)shu le he shang you de mian tai yang fu she de shi jian bian hua ru xia ,zai nian bian hua te zheng fang mian ,shu le he liu yu de ou de xiang xia duan bo fu she he jing duan bo fu she ju you ming xian de nian bian hua te zheng ,cheng chan feng xing ;xiang xia duan bo fu she he jing duan bo fu she zai 1-6yue zeng jia ,bing da dao feng zhi ,zai 6yue -9yue you xiao fu du bo dong jian shao ,sui hou jian shao ,zai 12yue huo lai nian 1yue jian shao zhi zui xiao zhi 。xiang shang duan bo fu she mo ming xian gui lv ,zai 4200mgao han cao dian ou ,xiang shang duan bo fu she zui da zhi chu xian zai 3-5yue ,zui xiao zhi chu xian zai 7-8yue ;bing chuan xiao rong ou de zui da zhi chu xian zai 6-7yue ,zui xiao zhi chu xian zai 1yue huo 12yue 。ji jie bian hua te zheng fang mian ,jiang gao han cao dian ou fen wei sheng chang ji he fei sheng chang ji ,bing chuan xiao rong ou fen wei shi ji he gan ji 。4200mce zhan de fu she san fen liang de bian hua bo dong jiao da 。xiang xia duan bo fu she ji jie fei sheng chang ji zhong zai 1-5yue zeng chang ,9-12yue jian xiao 。xiang shang duan bo fu she ji jie fei sheng chang ji zhong zai 1-5yue he 9-12yue dou cheng xian xian zeng jia hou jian xiao de qu shi 。jing duan bo fu she ze shi 1-5yue ji ben bao chi yun su zeng chang ,9-12yue ji ben wen ding jian shao 。xiang shang duan bo fu she de ji jie bian hua te zheng bu ming xian 。bing chuan xiao rong ou ze shi xiang xia duan bo fu she bo dong bi jiao da ,xiang shang duan bo fu she ji he jing duan bo fu she zai gan shi ji de bian hua bo dong jiao xiao 。xiang xia duan bo fu she he jing duan bo fu she jun zai 1-5yue zeng chang ,9-12yue jian xiao 。xiang shang duan bo fu she ji jie shi ji zhong zai 1-5yue he 9-12yue dou cheng xian bo dong qu shi 。(2)shu le he shang you de mian tai yang fu she de kong jian bian hua ru xia ,liang ge shi ce zhan dian de fu she san fen liang cheng xian jiao wei bu tong de kong jian cha yi 。4550mce zhan bi 4200mce zhan jie shou dao de xiang xia duan bo fu she tong liang da ,xiang shang duan bo fu she jiao da ,jing duan bo fu she tong liang jiao xiao 。4200mce zhan suo zai de gao han cao dian ou de duan bo fu she de li san cheng du ming xian da yu bing chuan xiao rong ou 。(3)zai fen xi fu she jing du zai nian he ji jie che du shang de ping gu jie guo ru xia ,shou xian zai nian che du shang ,san tao zai fen xi fu she zi liao dou neng bi jiao hao de ni ge xiang xia duan bo fu she he jing duan bo fu she de nian bian hua gui lv ,dan zhi you Harneng zhun que fan ying xiang xia duan bo fu she he jing fu she zai mei nian 6-7yue xiao fu du de zhen dang jian shao 。zong ti er yan ,ERA-Interimde di gu cheng du zui da ,CERA-SATji ci ,Harbiao xian chu gao gu ,dan pian cha cheng du hen xiao ,jing du zui gao 。san tao zai fen xi zi liao dui yu xiang shang duan bo fu she de jing du hen di 。zai ji jie che du shang ,san tao zai fen xi fu she zi liao ke yi fan ying chu bu tong ji jie xiang xia duan bo fu she he jing fu she de bian hua qu xian bing cheng xian chu bu tong cheng du de di gu ,dan zhi you Harneng zhun que fan ying xiang xia duan bo fu she zai mei ri de zhen dang bian hua 。zai xiang shang duan bo fu she de ni ge fang mian ,san tao zai fen xi zi liao de kuo yong xing dou jiao di 。cong ge ge ping gu zhi biao lai kan ,ERA-Interimde pian cha zui da ,CERA-SATji ci ,Harni ge cheng du zui hao ,jing du zui gao 。zong ti er yan ,Harde jing du zui gao ,zai yan jiu ou de kuo yong xing zui hao 。(4)zai fen xi fu she jing du zai kong jian che du shang de ping gu jie guo ru xia ,san tao zai fen xi fu she zi liao dou ke yi ji ben ni ge chu xiang xia duan bo fu she he jing duan bo fu she ,Harzai hai ba 4200mce zhan suo dai biao de gao han cao dian ou he hai ba 4550mce zhan suo dai biao de bing chuan xiao rong ou de jing du zui gao ,CERA-SATde kuo yong xing ji ci ,ERA-Interimde jing du xiang dui jiao di ;liang chu bu tong xia dian mian de ou yu zhong ,san tao zai fen xi zi liao zai mo ni xiang shang duan bo fu she de biao xian dou hen cha 。zai fen xi zi liao de jing du zai 4550mde bing chuan xiao rong ou de jing du yao lve hao yu 4200mchu de gao han cao dian ou 。
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论文详细介绍
论文作者分别是来自山东师范大学的张悟颖，发表于刊物山东师范大学2019-07-06论文，是一篇关于疏勒河流域论文,地面太阳辐射论文,年变化论文,季度变化论文,再分析资料论文,山东师范大学2019-07-06论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自山东师范大学2019-07-06论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：疏勒河流域论文; 地面太阳辐射论文; 年变化论文; 季度变化论文; 再分析资料论文; 山东师范大学2019-07-06论文;