Evaluation of reanalysis soil moisture simulations using updated Chinese soil moisture observations
文献类型：SCI/SSCI论文
| 作者 | Li H. B. ; Robock A. ; Liu S. X. ; Mo X. G. ; Viterbo P. |
| 发表日期 | 2005 |
| 关键词 | land-surface parameterization mesoscale eta-model united-states biosphere model global climate forecast model predictability rainfall scheme precipitation |
| 英文摘要 | Using 19 yr of Chinese soil moisture data from 1981 to 1999, the authors evaluate soil moisture in three reanalysis outputs: the 40-yr European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-40); the National Centers for Environmental Prediction-National Center for Atmospheric Research (NCEP-NCAR) reanalysis 1 (R-1); and the NCEP-Department of Energy (DOE) reanalysis 2 (R-2) over China. R-2 shows improved interannual variability and better seasonal patterns of soil moisture than R-1 as the result of the incorporation of observed precipitation, but not for all stations. ERA-40 produces a better mean value of soil moisture for most Chinese stations and good interannual variability. Limited observations in the spring indicate a spring soil moisture peak for most of the stations. ERA-40 generally reproduced this event, while R-1 or R-2 generally did not capture this feature, either because the soil was already saturated or the deep soil layer was too thick and damped such a response. ERA-40 and R-1 have a temporal time scale comparable to observations, but R-2 has a memory of nearly 5 months for the growing season, about twice the temporal scale of the observations. The cold season tends to prolong soil moisture memory by about 3 months for R-2 and I month for ERA-40. The unrealistic long temporal scale of R-2 can be attributed to the deep layer of the land surface model, which is too thick and dominates the soil moisture variability. R-1 has the same land surface scheme as R-2, but shows a temporal scale close to observations, which is actually because of soil moisture nudging to a fixed climatology. This new long time series of observed soil moisture will prove valuable for other studies of climate change, remote sensing, and model evaluation. |
| 出处 | Journal of Hydrometeorology |
| 卷 | 6 |
| 期 | 2 |
| 页 | 180-193 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1525-755X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23669]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Li H. B.,Robock A.,Liu S. X.,et al. Evaluation of reanalysis soil moisture simulations using updated Chinese soil moisture observations. 2005. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
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。