Infrared and Optical Aeronomy of Thermospheres, Exospheres, and Ionospheres

继续使用可移动的宽通带法布里-佩罗光谱仪，研究人员确定了行星热层和外逸层的成分、温度、风和通量，特别强调了地球大气中的这些区域。在以往研究成果的基础上，他正在开展五个相关项目：(1)测量红外中性、亚稳态氦，以确定地球外基附近的中性温度、中性氦密度和中性风；(2)测量红外OI 8446埃发射，结合适应光电子模型建立测定热层原子氧密度的新技术；(3)建立一种新的地面技术，利用红外发射测量来确定低层热层中一氧化氮的丰度；(4)在350 ~ 1万km范围内测量原子氢密度高度剖面图、有效氢温度、氢逸出通量；(5)在水星大气中寻找超热钠原子和硫原子。

Continuing to use transportable, broad pass-band, Fabry-Perot spectrometers, the investigator determines composition, temperature, winds and fluxes in planetary thermospheres and exosphere, particularly emphasizing those regions in earth's atmosphere. Expanding upon results obtained from previous research, he is conducting five related projects: (1) measuring infrared neutral, metastable helium to determine neutral temperature, neutral helium density, and neutral winds near the earth's exobase; (2) measuring infrared OI 8446 angstrom emission to establish a new technique for determining thermospheric at5omic oxygen density in conjunction with adapted photoelectron models; (3) establishing a new ground-based technique to determine the abundance of nitric oxide in the lower thermosphere using infrared emission measurements; (4) measuring the altitude profile of atomic hydrogen density from 350-10,000 kilometers, the effective hydrogen temperature, and the hydrogen escape flux; and (5) searching for supra-thermal sodium atoms and sulfur atoms in Mercury's atmosphere.