Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL090313 |
The reduction in near‐global cloud cover after correcting for biases caused by finite resolution measurements | |
Soumi Dutta; Larry Di Girolamo; Sagnik Dey; Yizhe Zhan; Catherine M. Moroney; Guangyu Zhao | |
2020-11-20 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | A solution to the common problem that sensors have in overestimating cloud fraction (CF) due to their finite resolution is implemented by the Multi‐angle Imaging SpectroRadiometer (MISR) to produce a resolution‐corrected CF product. Here we evaluate the efficacy of this product toward the development of an improved global cloud climatology. We found a large reduction in CF across various regions of the globe due to the correction, with reductions > 0.4 in regions dominated by shallow cumulus clouds. The MISR resolution‐corrected CF lies within ±0.05‐0.08 of 180 randomly selected scenes of 15‐m resolution Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data, where MISR uncorrected CF and Moderate Resolution Imaging Spectroradiometer (MODIS) CF overestimated this benchmark by 0.40‐0.50. We conclude that the CF between 50°N‐50°S is much lower than that reported by the original MISR and MODIS and that the new MISR cloud product indeed provides improved estimates of CF. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/304292 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Soumi Dutta,Larry Di Girolamo,Sagnik Dey,等. The reduction in near‐global cloud cover after correcting for biases caused by finite resolution measurements[J]. Geophysical Research Letters,2020. |
APA | Soumi Dutta,Larry Di Girolamo,Sagnik Dey,Yizhe Zhan,Catherine M. Moroney,&Guangyu Zhao.(2020).The reduction in near‐global cloud cover after correcting for biases caused by finite resolution measurements.Geophysical Research Letters. |
MLA | Soumi Dutta,et al."The reduction in near‐global cloud cover after correcting for biases caused by finite resolution measurements".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论