Atmospheric composition and thermodynamic retrievals from the ARIES airborne TIR-FTS system – Part 2: Validation and results from aircraft campaigns
Atmospheric composition and thermodynamic retrievals from the ARIES airborne TIR-FTS system – Part 2: Validation and results from aircraft campaigns
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ARIES 机载 TIR-FTS 系统的大气成分和热力学反演 - 第 2 部分：飞机活动的验证和结果
DOI：
10.5194/amt-7-4401-2014
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发表时间：
2014
影响因子：
3.8
通讯作者：
Jonathan P. Taylor
中科院分区：
文献类型：
--
作者：
G. Allen;S. Illingworth;S. O'Shea;S. Newman;A. Vance;S. Bauguitte;F. Marenco;J. Kent;K. Bower;M. Gallagher;J. Muller;C. Percival;C. Harlow;James D. Lee;Jonathan P. Taylor
抽象的。本研究验证微量气体和热力学检索记录的英国气象局机载研究干涉仪评估系统（ARIES）-热红外，傅里叶变换光谱仪（TIR-FTS）的英国设施机载大气测量（FAAM）BAe-146飞机的最低点红外光谱测量。利用伦敦晴空期间伦敦、美国墨西哥湾沿岸和北极圈上空和周围的飞机活动数据，在一系列环境变化的范围内，检索并验证了本研究的整个对流层和行星边界层（PBL）的痕量气体浓度和热力学廓线（ClearfLo）、联合机载IASI（红外大气探测干涉仪）验证实验（JAIVEx）和测量、过程研究和建模（MAMM）飞机活动。垂直分辨反演的温度和水蒸气（H2O），甲烷（CH 4），一氧化碳（CO）和臭氧（O3）（在陆地和海洋）的部分列检索进行了比较，从高精度的原位分析仪和投下式探空仪上操作的FAAM飞机相应的测量。平均自由度的信号（DOFS）在0-9公里的列范围内被发现是4.97，3.11，0.91，1.10，和1.62的温度，H2O，CH 4，CO，和O3，分别在10个垂直水平检索。部分列平均偏差当在所有飞行活动中取平均值时，发现表面和~ 9 km之间的偏差（和偏差标准误差）为-0.7（±0.3）K，−479（±56）ppm，−11（±2）ppb，−3.3（±1.0）ppb和+3.5（±1.0）ppb，而单独检索的概况的典型后验（总）不确定性分别为0.4%、9.5%、5.0%、21.2%和15.0%，分别平均内核（AKs）推导出逐渐降低的高度时，在较低的高度飞行时，提高敏感性较低的大气层。温度和H2O显示显着的垂直分辨灵敏度在整个列，而微量气体有效地检索只有部分列的数量，最大的灵敏度为微量气体以外的H2O在1和2公里以下的飞机层。这项研究表明，有价值的大气成分的信息内容，可以通过ARIES天底TIR遥感大气过程的研究。
Abstract. This study validates trace gas and thermodynamic retrievals from nadir infrared spectroscopic measurements recorded by the UK Met Office Airborne Research Interferometer Evaluation System (ARIES) – a thermal infrared, Fourier transform spectrometer (TIR-FTS) on the UK Facility for Airborne Atmospheric Measurements (FAAM) BAe-146 aircraft. Trace-gas-concentration and thermodynamic profiles have been retrieved and validated for this study throughout the troposphere and planetary boundary layer (PBL) over a range of environmental variability using data from aircraft campaigns over and around London, the US Gulf Coast, and the Arctic Circle during the Clear air for London (ClearfLo), Joint Airborne IASI (Infrared Atmospheric Sounding Interferometer) Validation Experiment (JAIVEx), and Measurements, process studies, and Modelling (MAMM) aircraft campaigns, respectively. Vertically resolved retrievals of temperature and water vapour (H2O), and partial-column retrievals of methane (CH4), carbon monoxide (CO), and ozone (O3) (over both land and sea) were compared to corresponding measurements from high-precision in situ analysers and dropsondes operated on the FAAM aircraft. Average degrees of freedom for signal (DOFS) over a 0–9 km column range were found to be 4.97, 3.11, 0.91, 1.10, and 1.62 for temperature, H2O, CH4, CO, and O3, respectively, when retrieved on 10 vertical levels. Partial-column mean biases (and bias standard error) between the surface and ~ 9 km, when averaged across all flight campaigns, were found to be −0.7(±0.3) K, −479(±56) ppm, −11(±2) ppb, −3.3(±1.0) ppb, and +3.5(±1.0) ppb, respectively, whilst the typical a posteriori (total) uncertainties for individually retrieved profiles were 0.4, 9.5, 5.0, 21.2, and 15.0 %, respectively. Averaging kernels (AKs) derived for progressively lower altitudes show improving sensitivity to lower atmospheric layers when flying at lower altitudes. Temperature and H2O display significant vertically resolved sensitivity throughout the column, whilst trace gases are usefully retrieved only as partial-column quantities, with maximal sensitivity for trace gases other than H2O within a layer 1 and 2 km below the aircraft. This study demonstrates the valuable atmospheric composition information content that can be obtained by ARIES nadir TIR remote sensing for atmospheric process studies.
DOI：
10.1016/j.jqsrt.2013.07.002
发表时间：
2013-11-01
影响因子：
2.3
作者：
Rothman, L. S.;Gordon, I. E.;Wagner, G.
通讯作者：
Wagner, G.
ULIRS，使用 IASI 光谱辐射率的一氧化碳最佳估计检索方案：灵敏度分析、误差预算和模拟
影响因子：
3.8
作者：
Illingworth S
通讯作者：
Illingworth S
影响因子：
3.8
作者：
S. Illingworth;G. Allen;S. Newman;A. Vance;F. Marenco;R. Harlow;Jonathan P. Taylor;D. Moore;J. Remedios
通讯作者：
S. Illingworth;G. Allen;S. Newman;A. Vance;F. Marenco;R. Harlow;Jonathan P. Taylor;D. Moore;J. Remedios