Validation of the Aura Microwave Limb Sounder HNOmeasurements
Validation of the Aura Microwave Limb Sounder HNOmeasurements
复制标题
Aura 微波临肢探测器 HNO 测量的验证
DOI：
10.1029/2007jd008721
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发表时间：
2007
影响因子：
2.6
通讯作者：
K. Walker
中科院分区：
文献类型：
--
作者：
M. Santee;A. Lambert;W. G. Read;N. Livesey;R. Cofield;D. Cuddy;W. Daffer;B. Drouin;Froidevaux;R. Fuller;R. Jarnot;B. Knosp;G. Manney;V. Perun;W. V. Snyder;P. Stek;P. R;Thurstans;P. Wagner;J. W. Waters;G. Muscari;R. L. Zafra;J. Dibb;D. W. Fahey;P. Popp;P. T;Marcy;K. Jucks;G. Toon;R. Stachnik;P. Bernath;C. Boone;K. Walker
我们评估的质量版本2.2（v2.2）硝酸测量从微波临边探测器（MLS）对地球观测系统的光环卫星。MLS HNO 3产品与之前的版本（v1.5）相比有了很大的改进，具有更平滑的轮廓，在最低检索水平下更真实的行为，并纠正了v1.5处理中使用的光谱文件中的错误引起的高偏差。v2.2 HNO 3数据在215至3.2 hPa范围内具有科学用途，整个单一剖面精度为10.7 ppbv。垂直分辨率在对流层上部和平流层下部为3-4公里，在平流层中上部下降到1.5公里。各种来源的系统的不确定性的影响已经量化，通过一套全面的检索模拟。总的来说，系统不确定性估计会导致v2.2 HNO 3测量偏差随高度在±0.5和±2 ppbv之间变化，整个平流层的乘法误差为±5-15%，在215 hPa上升到±30%。与这种不确定性分析相一致，与相关数据集的比较表明，相对于地面，球载和卫星仪器在红外和微波光谱区域的HNO 3测量，MLS v2.2 HNO 3混合比在平流层的大部分区域均匀低10-30%。与DC-8和WB-57飞机在对流层上部和平流层最低处进行的现场测量比较表明，MLS HNO 3值在该区域也很低，但对科学研究是有用的（适当平均）。1美国加州帕萨迪纳市加州理工学院喷气推进实验室。2同时在美国新墨西哥州索科罗的新墨西哥州采矿和技术学院物理系。3意大利罗马国家地球物理和火山学研究所。4美国纽约斯托尼布鲁克纽约州立大学物理学和天文学系及地球和行星大气研究所。5美国新罕布什尔州达勒姆市新罕布什尔州大学地球、海洋和空间研究所气候变化研究中心。6国家海洋和大气管理局，地球系统研究实验室，化学科学部，美国，科罗拉多，博尔德。7也在美国科罗拉多州博尔德市的科罗拉多大学环境科学合作研究所。8现在在730 N。23街300号，密尔沃基，威斯康星州。9哈佛-史密森天体物理中心，剑桥，马萨诸塞州，美国。10加拿大安大略滑铁卢大学化学系。
We assess the quality of the version 2.2 (v2.2) HNO3 measurements from the Microwave Limb Sounder (MLS) on the Earth Observing System Aura satellite. The MLS HNO3 product has been greatly improved over that in the previous version (v1.5), with smoother profiles, much more realistic behavior at the lowest retrieval levels, and correction of a high bias caused by an error in one of the spectroscopy files used in v1.5 processing. The v2.2 HNO3 data are scientifically useful over the range 215 to 3.2 hPa, with single-profile precision of ∼0.7 ppbv throughout. Vertical resolution is 3–4 km in the upper troposphere and lower stratosphere, degrading to ∼5 km in the middle and upper stratosphere. The impact of various sources of systematic uncertainty has been quantified through a comprehensive set of retrieval simulations. In aggregate, systematic uncertainties are estimated to induce in the v2.2 HNO3 measurements biases that vary with altitude between ±0.5 and ±2 ppbv and multiplicative errors of ±5–15% throughout the stratosphere, rising to ∼±30% at 215 hPa. Consistent with this uncertainty analysis, comparisons with correlative datasets show that, relative to HNO3 measurements from ground-based, balloon-borne, and satellite instruments operating in both the infrared and microwave regions of the spectrum, MLS v2.2 HNO3 mixing ratios are uniformly low by 10–30% throughout most of the stratosphere. Comparisons with in situ measurements made from the DC-8 and WB-57 aircraft in the upper troposphere and lowermost stratosphere indicate that the MLS HNO3 values are low in this region as well, but are useful for scientific studies (with appropriate averaging). 1Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA. 2Also at Department of Physics, New Mexico Institute of Mining and Technology, Socorro, New Mexico, USA. 3Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy. 4Department of Physics and Astronomy, and Institute for Terrestrial and Planetary Atmospheres, State University of New York, Stony Brook, New York, USA. 5Climate Change Research Center, Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, New Hampshire, USA. 6National Oceanic and Atmospheric Administration, Earth System Research Laboratory, Chemical Sciences Division, Boulder, Colorado, USA. 7Also at Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA. 8Now at 730 N. 23rd St. #300, Milwaukee, Wisconsin. 9Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, USA. 10Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada.