| 报告题目 | Water vapor self-continuum by cavity ring down spectroscopy in the 1.6 μm atmospheric transparency window |
| 报告人 | Prof. Alain Campargue |
| 报告人单位 | Laboratoire Interdisciplinaire de Physique, CNRS; University of Grenoble Alpes, France |
| 报告时间 | 2014-04-28 |
| 报告地点 | 合肥微尺度物质科学国家实验室九楼会议室 |
| 主办单位 | 合肥微尺度物质科学国家实验室 |
| 报告介绍 | 报告摘要： Since its discovery one century ago, a deep and, up to now, unresolved controversy remains on the nature of the water vapour continuum. The atmospheric science community has largely sidestepped this controversy, and has adopted a pragmatic approach: most radiative transfer codes used in climate modelling, numerical weather prediction and remote sensing are based on a semi-empirical formulation of the continuum missing theoretical or experimental basis, in particular in the near infrared windows. Indeed, due to the weakness of the broadband absorption signal to be measured, very few measurements of the water vapor continuum are available in the NIR windows especially for temperature conditions relevant for our atmosphere. We will present the first measurements of the water vapor self-continuum cross-sections in the 1.6 µm window by cavity ring down spectroscopy (CRDS). Comparison with other existing experimental data and models will be discussed. |
