首页> 外文OA文献 >Atmospheric hydroxyl radical (OH) abundances from ground-based ultraviolet solar spectra: an improved retrieval method
【2h】

Atmospheric hydroxyl radical (OH) abundances from ground-based ultraviolet solar spectra: an improved retrieval method

机译:地面紫外太阳光谱中的大气羟基自由基(OH)丰度:一种改进的检索方法

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

The Fourier Transform Ultraviolet Spectrometer (FTUVS) instrument has recorded a long-term data record of the atmospheric column abundance of the hydroxyl radical (OH) using the technique of high resolution solar absorption spectroscopy. We report new efforts in improving the precision of the OH measurements in order to better model the diurnal, seasonal, and interannual variability of odd hydrogen (HOx) chemistry in the stratosphere, which, in turn, will improve our understanding of ozone chemistry and its long-term changes. Until the present, the retrieval method has used a single strong OH absorption line P1(1) in the near-ultraviolet at 32,341 cm−1. We describe a new method that uses an average based on spectral fits to multiple lines weighted by line strength and fitting precision. We have also made a number of improvements in the ability to fit a model to the spectral feature, which substantially reduces the scatter in the measurements of OH abundances.
机译:傅立叶变换紫外光谱仪(FTUVS)仪器使用高分辨率太阳吸收光谱技术记录了羟基自由基(OH)的大气柱丰度的长期数据记录。我们报告了为改善OH测量精度而做出的新努力,以便更好地模拟平流层中奇异氢(HOx)化学物质的日变化,季节变化和年际变化,这反过来又将增进我们对臭氧化学及其化学性质的理解。长期的变化。到目前为止,该检索方法仅在32341 cm-1的近紫外线中使用了一条强OH吸收线P1(1)。我们描述了一种新方法,该方法使用基于光谱拟合的平均值来对多条线(由线强度和拟合精度加权)进行加权。我们还对模型拟合光谱特征的能力进行了许多改进,从而大大减少了OH丰度测量中的散射。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号