地面氨(NH3) -地球科学堆栈交换的大致图江南电子竞技平台江南体育网页版 最近30个来自www.hoelymoley.com 2023 - 04 - 07 - t16:42:45z //www.hoelymoley.com/feeds/question/13851 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/13851 10 地面氨(NH3)的大致情况 汉Zhengzu //www.hoelymoley.com/users/5214 2018 - 04 - 10 - t02:52:39z 2018 - 05 - 03 - t04:45:25z 氨是大气中唯一的碱性气体。它是控制气溶胶酸度和铵盐形成的关键特征之一。

在$NH_3$-富和$NH_3$-贫的环境中,二次气溶胶的形成途径是不同的。例如,$NH_3$与$_2SO_4$结合后,如果$NH_3$是多余的,它们将继续与$HNO_3$反应生成$NH_4NO_3$。而在贫$NH_3$环境下,$HNO_3$会与地壳物质发生反应,形成粗态硝酸盐。

这样,$NH_3$的浓度水平影响了大气气溶胶的化学组成、尺寸分布。然而,$NH_3$的地面监测在中国仍然有限,在有限的地点发表了几次。

因此,我想知道:

  1. 有没有其他物种估计NH3浓度的方法?
  2. 是否有任何数据集(例如遥感,测量)提供$NH_3$浓度的分布?<李> / < / ol >
//www.hoelymoley.com/questions/13851/a-rough-picture-about-the-ground-level-ammonia-nh3/14037#14037 4 关于地面氨(NH3)的大致情况 jvir //www.hoelymoley.com/users/859 2018 - 05 - 01 - t17:55:43z 2018 - 05 - 01 - t17:55:43z 似乎很难为$\mathrm{NH}_3$找到一个合理的替代物种,因为它的来源(主要是农业)与更常见的观察到的污染物的来源截然不同。对气溶胶中$\mathrm{NH}_4^+$的一些观测可能(也可能没有)可用,但由于您解释的原因,从气溶胶中的$\mathrm{NH}_4^+$中推断气相$\mathrm{NH}_3$的浓度并非微不足道。

  • 有关于从卫星数据估计大气$\ mathm {NH}_3$的论文,例如herehere。但是,这些是用于列集成的,而不是用于曲面$\ mathm {NH}_3$。李< / p > < / > < / ol >

  • //www.hoelymoley.com/questions/13851/a-rough-picture-about-the-ground-level-ammonia-nh3/14040#14040 3. 关于地面氨(NH3)的粗略图 f.thorpe //www.hoelymoley.com/users/543 2018 - 05 - 01 - t20:33:37z 2018 - 05 - 03 - t04:45:25z 有一些NH3可从Aura/NASA卫星上的TES仪器进行检索。MetOP/欧空局卫星上的IASI仪器也有一些NH3的检索。你可以阅读这些论文的检索:< / p > < p > < a href = " https://www.atmos -量- tech.net/8/1575/2015/amt - 8 - 1575 - 2015. - pdf”rel =“nofollow”noreferrer >对验证氨(NH3)测量的雅西卫星< / > < / p > < p > < a href = " https://www.atmos -化学- phys.net/11/10743/2011/acp - 11 - 10743 - 2011. - pdf”rel =“nofollow”noreferrer >无氨检索策略和全球观测空间和季节性变化的氨< / > < / p > < p >这些数据集是一个很好的定性way to see ammonia spatial and temporal distribution across the globe. However, do not expect to get good estimates of ammonia concentrations, since there is too much uncertainty in the retrieval. In fact, I don't think these are "operational" products, and you will likely have to contact the research teams to get the data. See the image below, where you can see the effects of albedo in Australia and Greenland cause large errors in the retrieval.

    In general, you will see high NH3 near large sources like wildfires, livestock waste stockpiling, and crops with recent fertilizer application.

    IASI NH3

    Mean IASI-NH 3 total column distribution for the period between January 2008 and January 2015. The total columns are a weighted average of the individual observations weighted with the relative error. Red circles indicate the positions of the FTIR stations. source: An evaluation of IASI-NH3 with ground-based Fourier transform infrared spectroscopy measurements

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