搜索结果: 1-9 共查到“大气物理学 N2O”相关记录9条 . 查询时间(0.109 秒)
茶，作为最大众化、最受欢迎的健康饮品，在区域和全球农业经济发展和文化传播方面具有重要作用。截止目前，全世界有超过62个国家种植茶叶，面积达到490万公顷；中国作为茶叶的故乡，其种植面积和产量均居世界首位。全球茶树种植的普遍特点是生长在高热高湿、透水性良好的酸性土壤中，并且随着茶树的生长，茶园土壤中的有机质含量逐渐增加。再者，为了追求茶叶的产量和提高茶叶的品质，茶农往往对茶园施用大量氮肥，施肥量通常...
本文利用美国国家大气环境中心(NCAR)的二维化学、辐射和动力相互作用的模式(SOCRATES),模拟了大气中N2O增加对O3和温度的影响,并从化学、辐射和动力过程讨论了影响原因,此外还与大气甲烷和平流层水汽增加对大气环境的影响进行了对比.分析表明:大气中N2O浓度增加以后,将通过化学过程引起30 km以上O3损耗,30~40 km损耗较多;30 km以上降温明显,下平流层中低纬度地区以及对流层O...
Wavelength dependence of isotope fractionation in N2O photolysis
Wavelength dependence isotope fractionation N2O photolysis
2009/3/10
In previous reports on isotopic fractionation in the ultraviolet photolysis of nitrous oxide (N2O) only enrichments of heavy isotopes in the remaining N2O fraction have been found. However, most direc...
Comparisons between SCIAMACHY and ground-based FTIR data for total columns of CO, CH4, CO2 and N2O
SCIAMACHY ground-based FTIR data CO CH4 CO2 N2O
2009/1/8
Total column amounts of CO, CH4, CO2 and N2O retrieved from SCIAMACHY nadir observations in its near-infrared channels have been compared to data from a ground-based quasi-global network of Fourier-tr...
Constraints on N2O budget changes since pre-industrial time from new firn air and ice core isotope measurements
N2O budget changes pre-industrial time new firn air ice core isotope measurements
2008/12/31
A historical record of changes in the N2O isotope composition is important for a better understanding of the global N2O atmospheric budget. Here we have combined measurements of trapped gases in the f...
Simultaneous ground-based observations of O3, HCl, N2O, and CH4 over Toronto, Canada by three Fourier transform spectrometers with different resolutions
Simultaneous ground-based observations O3 HCl N2O CH4 three Fourier transform spectrometers
2008/12/3
An intercomparison of three Fourier transform spectrometers (FTSs) with significantly different resolutions is presented. The highest-resolution instrument has a maximum optical path difference of 250...
Comparisons between ground-based FTIR and MIPAS N2O and HNO3 profiles before and after assimilation in BASCOE
ground-based FTIR MIPAS N2O HNO3 BASCOE
2008/11/28
Within the framework of the Network for Detection of Atmospheric Composition Change (NDACC), regular ground-based Fourier transform infrared (FTIR) measurements of many species are performed at severa...
The Atmospheric Chemistry Experiment (ACE), also known as SCISAT, was launched on 12 August 2003, carrying two instruments that measure vertical profiles of atmospheric constituents using the solar oc...
In this paper we present evidence of enhanced N2O concentrations in the upper stratosphere/lower mesosphere polar regions after the solar proton events that occurred during October–November 2003. The ...