| 珠穆朗玛峰北坡海拔6 523 m辐射平衡观测结果分析 |
| |
| 引用本文： | 蒋友严,任贾文,秦翔,谢爱红,王叶堂.珠穆朗玛峰北坡海拔6 523 m辐射平衡观测结果分析[J].冰川冻土,2007,29(4):589-594. |
| |
| 作者姓名： | 蒋友严 任贾文 秦翔 谢爱红 王叶堂 |
| |
| 作者单位： | 中国科学院,寒区旱区环境与工程研究所冰冻圈与环境联合重点实验室,甘肃,兰州,730000;中国科学院,寒区旱区环境与工程研究所冰冻圈与环境联合重点实验室,甘肃,兰州,730000;中国科学院,寒区旱区环境与工程研究所冰冻圈与环境联合重点实验室,甘肃,兰州,730000;中国科学院,寒区旱区环境与工程研究所冰冻圈与环境联合重点实验室,甘肃,兰州,730000;中国科学院,寒区旱区环境与工程研究所冰冻圈与环境联合重点实验室,甘肃,兰州,730000 |
| |
| 基金项目： | 中国科学院知识创新工程重要方向项目(KZCX3-SW-344)，国家自然科学基金项目(40501015)，中国科学院知识创新工程重要方向项目(KZCX3-SW-339)资助 |
| |
| 摘 要： | 利用2005年5月1日至7月22日在东绒布冰川海拔6 523 m的若普拉垭口架设的自动气象站获得的各辐射参数资料,分析了该地区总辐射、地面反射辐射、地面长波辐射、天空长波辐射的日平均变化和平均日变化,并计算了反射率和辐射平衡.结果表明:1)短波辐射的平均日变化都随着太阳高度角的增大而加强,并且总辐射和地面反射辐射的日平均变化有很好的相关性,观测期间二者的月平均值都在5月份最大.由于垭口新降雪较多,雪面的反射率也很高;2)天空长波辐射的平均日变化比地面长波辐射变化滞后2 h,且其日平均变化幅度比地面长波辐射的变化幅度大;3)净辐射的平均日变化随着太阳高度角的变化而变化,下午14:00时净辐射最大,其日平均变化在观测期间整体上有增大趋势.
|
| 关 键 词： | 珠穆朗玛峰 总辐射 辐射平衡 反射率 |
| 文章编号： | 1000-0240（2007）04-0589-06 |
| 修稿时间： | 2006-12-05 |
Radiation Balance Observation at an Elevation of 6 523 m on the North Slope of Mount Qomolangma |
| |
| JIANG You-yan,REN Jia-wen,QIN Xiang,XIE Ai-hong,WANG Ye-tang.Radiation Balance Observation at an Elevation of 6 523 m on the North Slope of Mount Qomolangma[J].Journal of Glaciology and Geocryology,2007,29(4):589-594. |
| |
| Authors: | JIANG You-yan REN Jia-wen QIN Xiang XIE Ai-hong WANG Ye-tang |
| |
| Institution: | State Key Laboratory of Cryosphere Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China |
| |
| Abstract: | Diurnal mean variation and variations of mean daily variations of global radiation,surface short-wave radiation,surface longwave radiation,atmospheric counter-radiation are analyzed by using the radiation parameters obtained from the automatic weather station over the Ruopula pass of the East Rongbuk Glacier(at an elevation of 6523 m) from May 1 to July 22,2005,the surface albedo and the radiation balance.The short-wave radiation has a big change with the solar elevation angle increasing,and the daily global radiation has a good correlation with the surface short-wave radiation.The surface albedo is higher due to new snow always falling.Diurnal variation of atmospheric counter radiation lags for 2 hours behind the surface long wave radiation change,with a daily variation larger than that of the surface long-wave radiation.Diurnal mean net radiation changes with solar elevation angle increasing.There is an increasing tendency of the daily radiation balance during the observing duration. |
| |
| Keywords: | Mount Qomolangma global radiation radiation balance albedo |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
