Accuracy of analyzed stratospheric temperatures in the winter Arctic vortex from infrared Montgolfier long-duration balloon flights 1. Measurements : SAGE III-Ozone Loss Validation Experiment and Third European Stratospheric Experiment on Ozone-2000 (SOLVE/THESEO)
Accuracy of analyzed stratospheric temperatures in the winter Arctic vortex from infrared Montgolfier long-duration balloon flights 1. Measurements : SAGE III-Ozone Loss Validation Experiment and Third European Stratospheric Experiment on Ozone-2000 (SOLVE/THESEO)
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红外 Montgolfier 长期气球飞行分析冬季北极涡流平流层温度的准确性 1. 测量：SAGE III-臭氧损失验证实验和第三次欧洲平流层 Ozone-2000 实验 (SOLVE/THESEO)
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
F. Cairo
中科院分区：
文献类型：
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作者：
J. Pommereau;A. Garnier;B. Knudsen;G. Letrenne;M. Durand;M. Nunes;L. Denis;F. Vial;A. Hertzog;F. Cairo
[1] 1997年、1999年和2000年红外蒙哥尔菲尔（MIR）长期气球飞行获得了冬季北极平流层的一系列温度测量结果，并研究了各种气象分析的性能。在这一系列的两篇论文中的第一篇中，描述了实验设置和测量结果。 MIR 平台于 1997 年在冬季北极首次飞行，看起来非常适合在涡流中执行数周的飞行。已经实现了12天和22天（1997年）、7天和17天（1999年）以及3天和18天（2000年）的飞行，其中每9-10分钟对高度、压力和温度进行采样。通过对同一气球上的各种独立传感器以及维萨拉和俄罗斯无线电探空仪进行比较，可以评估仪器的性能。全球定位系统的高度/位置精度被证明为±100 m，但压力传感器的精度仅为±2 hPa。导出压力的最准确方法似乎是使用 GPS 高度和 ECMWF（欧洲中期天气预报中心）位势高度。最后，事实证明，在夜间和海拔仅低于 28 公里的情况下，温度测量精度为 ±0.4 K，平均偏差小于 ±0.5 K。
[1] Long series of temperature measurements in the winter Arctic stratosphere have been obtained from infrared Montgolfier (MIR) long-duration balloon flights in 1997, 1999, and 2000, from which the performance of a variety of meteorological analyses has been investigated. In this first paper of a series of two, the experimental setup and the measurements are described. First flown in the winter Arctic in 1997, the MIR platform appears well adapted to perform flights for several weeks in the vortex. Flights of 12 and 22 days (1997), 7 and 17 days (1999), and 3 and 18 days (2000) have been achieved along which altitude, pressure, and temperature have been sampled every 9-10 min. Comparisons between various independent sensors on the same balloon, and to Vaisala and Russian radiosondes, have made it possible to evaluate the performances of the instruments. The accuracy of the altitude/location of the Global Positioning System proved to be ±100 m but that of the pressure sensors only ±2 hPa. The most accurate method for deriving pressure appears to be the use of GPS altitude together with the ECMWF (European Centre for Medium-Range Weather Forecasts) geopotential height. Finally, the temperature was demonstrated to be measured with a precision of ±0.4 K and an average bias of less than ±0.5 K, but during nighttime and at an altitude below only 28 km.