The water vapour budget of the stratosphere studied using LIMS and SAMS satellite data
The water vapour budget of the stratosphere studied using LIMS and SAMS satellite data
复制标题
使用 LIMS 和 SAMS 卫星数据研究平流层的水蒸气收支
DOI：
10.1002/qj.49711247412
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发表时间：
1986
影响因子：
8.9
通讯作者：
J. Gille
中科院分区：
文献类型：
--
作者：
Roderic L. Jones;J. Pyle;J. Harries;A. Zȧvody;J. Russell;J. Gille
利用雨云7号上平流层临边红外监测仪（LIMS）和平流层和中间层探测仪（SAMS）对H2O和CH 4的月纬向平均观测资料，研究平流层H2O混合比是否与CH 4氧化源一致。虽然这两组数据都显示出相当大的季节变化结构，但总氢（忽略分子氢）相对没有特征，在所研究的五个月期间，平流层的平均值为6.0±0.35 ppm v（1σ）。总氢场的均匀性表明了甲烷氧化假说的有效性。
导出的总氢场用于推导空气进入平流层时的平均H2O混合比为2.7±0.35 p. p. m. v.（1σ），由此可以推导出干燥温度（例如。-87.2 °C（60 mb时）。
Monthly zonal mean observations of H2O and CH4 made by the limb infrared monitor of the stratosphere (LIMS) and the stratospheric and mesospheric sounder (SAMS) instruments on Nimbus 7 have been used to investigate whether the H2O mixing ratios in the stratosphere are consistent with a source via the oxidation of CH4. While both sets of data show considerable seasonally varying structure, total hydrogen (neglecting molecular hydrogen) is relatively featureless with a mean value over the stratosphere of 6.0±0.35 p.p.m.v. (1σ) for the five-month period studied. The uniformity of the total hydrogen fields points to the validity of the CH4 oxidation hypothesis.
The derived fields of total hydrogen are used to deduce a mean H2O mixing ratio for air as it enters the stratosphere of 2.7±0.35 p.p.m.v. (1σ) from which a desiccation temperature may be deduced (for example. −87.2°C at 60 mb).