A model of the Venus atmosphere from radio, radar, and occultation observations
A model of the Venus atmosphere from radio, radar, and occultation observations
复制标题
来自无线电、雷达和掩星观测的金星大气模型
DOI：
10.1086/157550
复制
发表时间：
1979
期刊：
影响因子：
--
通讯作者：
G. Berge
中科院分区：
文献类型：
--
作者：
D. Muhleman;G. Orton;G. Berge
一个模型的大气和表面的金星，最适合在最小二乘意义上的无线电亮度，雷达截面，无线电干涉仪，水手5号和10号无线电掩星观测。其他人通过雷达时间延迟测量获得的行星半径的确定结果也包括在数据集中。调整后的参数值为：CO2的摩尔分数= 95 ± 3%;氮和氩化合物的分数= 5 ± 3%; 1厘米波长处的大气总不透明度= 19.4 ± 1.3;地表平均半径= 6050.7 ± 0.8公里;表面的平均介电常数= 4.1加或减0.2，并且由于除CO2以外的化学物质导致的总不透明度的百分比= 45加或减12。平均表面的模型温度和压力分别为755 K和91.4 atm。
A model is presented of the atmosphere and surface of Venus which best fits in the least-squares sense the available radio-brightness, radar cross-section, radio interferometric, and Mariner 5 and 10 radio occultation observations. The determinations of the radius of the planet obtained by others from radar time-delay measurements are included in the data set. The values of the adjusted parameters are: molar fraction of CO2 = 95 plus or minus 3%; fraction of combined nitrogen and argon = 5 plus or minus 3%; total atmospheric opacity at a wavelength of 1 cm = 19.4 plus or minus 1.3; mean radius of the surface = 6050.7 plus or minus 0.8 km; mean dielectric constant of the surface = 4.1 plus or minus 0.2, and percentage of total opacity due to chemical species other than CO2 = 45 plus or minus 12. The model temperature and pressure at the mean surface are 755 K and 91.4 atm, respectively.