Automated in-situ monitoring of atmospheric non-methane hydrocarbon concentrations and gradients
Automated in-situ monitoring of atmospheric non-methane hydrocarbon concentrations and gradients
复制标题
大气非甲烷碳氢化合物浓度和梯度的自动原位监测
DOI：
10.1007/bf00712437
复制
发表时间：
1995
影响因子：
2
通讯作者：
S. Wofsy
中科院分区：
文献类型：
--
作者：
A. Goldstein;B. Daube;J. W. Munger;S. Wofsy
马萨诸塞州彼得舍姆的哈佛森林安装了一套全自动系统，使用带有双火焰离子化检测器和低温样品预浓缩的气相色谱仪来测量 C2-C6 碳氢化合物浓度和垂直梯度。从 1992 年 7 月至今，连续在森林树冠上方的两个高度以四十五分钟的间隔同时进行测量。将浓度梯度数据与涡相关测量的二氧化碳通量相结合，以确定森林生物碳氢化合物的生产速率。
A fully automated system measuring C2–C6 hydrocarbon concentrations and vertical gradients was installed at Harvard Forest in Petersham, Massachusetts, using a gas chromatograph with dual flame ionization detectors and cryogenic sample preconcentration. Measurements were made simultaneously at two heights above the forest canopy at forty five minute intervals, continuously from July 1992 to the present. Data for concentration gradients were combined with CO2 flux measured by eddy correlation to determine the rates of production of biogenic hydrocarbons by the forest.