| 青藏高原GLASS地表反照率产品精度分析 |
| |
| 引用本文： | 陈爱军,胡慎慎,卞林根,刘玉洁.青藏高原GLASS地表反照率产品精度分析[J].气象学报,2015,73(6):1114-1120. |
| |
| 作者姓名： | 陈爱军 胡慎慎 卞林根 刘玉洁 |
| |
| 作者单位： | 中国气象局气溶胶与云降水重点开放实验室, 南京, 210044;南京信息工程大学大气物理学院, 南京, 210044,中国气象局气溶胶与云降水重点开放实验室, 南京, 210044;南京信息工程大学大气物理学院, 南京, 210044,中国气象科学研究院, 北京, 100081,国家卫星气象中心, 北京, 100081 |
| |
| 基金项目： | 国家自然科学基金(40875015)、江苏省政府留学基金。 |
| |
| 摘 要： | 应用2003年青藏高原3个站点的地表反照率观测结果,对比分析了GLASS(Global LAnd Surface Satellites)地表反照率1 km×1 km分辨率产品的精度,结果表明,GLASS黑空反照率、白空反照率与地表反照率地面观测结果的总体变化趋势基本一致,能够有效地反映实际地表状态的变化;局地积雪和云覆盖对GLASS地表反照率产品的精度影响较大,云覆盖导致GLASS地表反照率可能比实际地表反照率高;消除云覆盖和局地积雪的影响后,GLASS黑空反照率、白空反照率与地表反照率地面观测结果的均方根误差显著降低,分别为0.0155和0.0190。
|
| 关 键 词： | GLASS 地表反照率 青藏高原 精度分析 |
| 收稿时间： | 2015/3/11 0:00:00 |
| 修稿时间： | 7/8/2015 12:00:00 AM |
An assessment on the accuracy of the GLASS albedo products over the Tibetan Plateau |
| |
| CHEN Aijun,HU Shenshen,BIAN Lingen and LIU Yujie.An assessment on the accuracy of the GLASS albedo products over the Tibetan Plateau[J].Acta Meteorologica Sinica,2015,73(6):1114-1120. |
| |
| Authors: | CHEN Aijun HU Shenshen BIAN Lingen and LIU Yujie |
| |
| Institution: | Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing 210044, China;School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing 210044, China,Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing 210044, China;School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing 210044, China,Chinese Academy of Meteorological Sciences, Beijing 100081, China and National Satellite Meteorology Center, Beijing 100081, China |
| |
| Abstract: | The accuracies of the GLASS (Global LAnd Surface Satellites) albedo products in 1 km resolution are assessed using the ground measurements of year 2003 at three stations over the Tibetan Plateau. The results show that the overall change trends of the GLASS black-sky and white-sky albedos are consistent with the ground-observed albedos, which could indicate the state of surface fair well; both the small fraction of snow cover and cloud cover have great effect on the accuracy of the GLASS albedo products and cloud cover might result in higher values of GLASS albedo products than ground measurements; the RMSEs (root-mean-square errors) between the GLASS black-sky albedos, GLASS white-sky albedos and ground measurements are evidently decreased when eliminating the effect of snow and cloud cover, which are 0.0155 and 0.019, respectively. |
| |
| Keywords: | GLASS Albedo the Tibetan Plateau Accuracy assessment |
|
| 点击此处可从《气象学报》浏览原始摘要信息 |
| 点击此处可从《气象学报》下载免费的PDF全文 |
|
