Knowledge Resource Center for Ecological Environment in Arid Area
| 报告编号 | ADA406559 |
| Critical Assessment of Selected Past Research on Optical Turbulence Information in Diverse Microclimates. | |
| Tunick, A. | |
| 英文摘要 | Due to the increased use of laser and ground-to-satellite communications the need for reliable optical turbulence information is growing. Optical turbulence information is important because it describes an atmospheric effect that can degrade the performance of electromagnetic systems and sensors, e.g., free-space optical communications and infrared imaging. However, critical analysis of selected past research indicates that there are some areas (i.e., data and models) in which optical turbulence information is lacking. For example, line-of-sight, optical turbulence data coupled with atmospheric models in hilly terrain, coastal areas, and within built-up urban areas are few in number or non-existent. In addition, the bulk of existing atmospheric computer models that are being used to provide estimates of optical turbulence are basically one-dimensional in nature and assume uniform turbulence conditions over large areas. Therefore, current optical turbulence theory and models may be critically deficient and in error for inhomogeneous turbulence conditions, such as those that occur in urban environments or environments with changing topography and energy budgets. This paper summarizes selected past research on optical turbulence and the refractive index structure parameter (C2n) in diverse microclimates in an effort to identify deficiencies in the optical turbulence information database and to recommend improvements. The database presented here contains optical turbulence (C2n) information at different wavelengths and for different microclinate environments, e.g., in rural, hilly, desert, mountain- valley, urban, coastal, ocean, and arctic. The database includes several examples of measured and modeled values of C2n in the atmospheric surface and boundary layers. |
| 英文关键词 | Optical properties Refractive index Turbulence Atmospheric motion Microclimatology Data bases Computerized simulation Systems engineering Coastal regions Detectors Performance(Engineering) Parameters Boundary layer Optical data |
| 出版年 | 2002 |
| 语种 | 英语 |
| 国家 | United States |
| URL | http://r.cnki.net/KCMS/detail/detail.aspx?DbCode=KJBG&dbname=KJBGW&filename=59fac2f131c97d1d549b1a02 |
| 来源机构 | Non Paid ADAS |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/273104 |
| 推荐引用方式 GB/T 7714 | Tunick, A.. Critical Assessment of Selected Past Research on Optical Turbulence Information in Diverse Microclimates.,2002. |
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