Impact of spatial heterogeneity of soil moisture on mesoscale fluctuations and mesoscale fluxes
文献类型：期刊论文
| 作者 | Jiang, JH; Hu, F; Cheng, XL |
| 刊名 | Chinese journal of geophysics-chinese edition
 |
| 出版日期 | 2006-03-01 |
| 卷号 | 49期号:2页码:375-382 |
| 关键词 | Surface heterogeneous length scale Numerical simulation Mesoscale fluxes 2-d fft Abl parameterization for gcm |
| ISSN号 | 0001-5733 |
| 通讯作者 | Jiang, jh(jiangjh@mail.iap.ac.cn) |
| 英文摘要 | Land surface heat fluxes and atmospheric boundary layer (abl) are simulated using the regional atmospheric modeling system ( rams). eight experiments on land-surface wetness discontinuities with heterogeneous length scales from 40km to 2km are carried out without large-scale background wind. the two-dimensional amplitude spectra of land surface heat fluxes, mesoscale fluctuations and mesoscale heat fluxes are analyzed by two-dimensional fast fourier transform algorithm (fft). then abl parameterization for large-scale models, such as gcm (general circulation model) is discussed. the results show that amplitude spectra of the land surface heat fluxes and the mesoscale fluctuations in each experiment reach maximum, when wave number corresponding to heterogeneous length scale, and when different length scales coexist, the largest scale is dominant. differently, amplitude spectra of the mesoscale heat fluxes, besides wave number corresponding to heterogeneous length scale, still have several peaks at other wave numbers. it appears that the relationships between the land surface heat fluxes and the heterogeneous length scale are significant, but the mesoscale heat fluxes don't indicate similar relationships with heterogeneous length scale. the representability of grid-cell averaged surface fluxes is good but that of mesoscale fluxes is not so good. |
| WOS关键词 | HEAT FLUXES ; MODEL ; PARAMETERIZATION ; ATMOSPHERE ; SIMULATION ; TURBULENT ; SYSTEM ; OASIS ; RAMS |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000236382000010 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378987 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Jiang, JH |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Atmospher Boundary Layer Phys & Atm, Inst Atmospher Phys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, JH,Hu, F,Cheng, XL. Impact of spatial heterogeneity of soil moisture on mesoscale fluctuations and mesoscale fluxes[J]. Chinese journal of geophysics-chinese edition,2006,49(2):375-382. |
| APA | Jiang, JH,Hu, F,&Cheng, XL.(2006).Impact of spatial heterogeneity of soil moisture on mesoscale fluctuations and mesoscale fluxes.Chinese journal of geophysics-chinese edition,49(2),375-382. |
| MLA | Jiang, JH,et al."Impact of spatial heterogeneity of soil moisture on mesoscale fluctuations and mesoscale fluxes".Chinese journal of geophysics-chinese edition 49.2(2006):375-382. |
入库方式： iSwitch采集
来源：中国科学院大学
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。