Real-time measurement of absorbing material in contrail ice using a counterflow virtual impactor
Real-time measurement of absorbing material in contrail ice using a counterflow virtual impactor
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使用逆流虚拟冲击器实时测量凝结尾冰中的吸收材料
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
S. Ohlsson
中科院分区：
文献类型：
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作者：
J. Ström;S. Ohlsson
近场原位测量的吸波材料中所含的凝结冰已被测量使用的粒子烟尘/吸收光度计连接到一个逆流的虚拟冲击器。通过商用飞机的排气羽流所作的垂直剖面显示出在尾迹的上半部分和下半部分之间的吸收材料含量的差异。在上部，吸收材料的平均浓度范围在0.006和0.045 μg m-3之间，而在排气羽流的下半部分中检测到少得多或没有检测到。在与燃料流量和羽流稀释归一化后，所观察到的吸收材料的浓度显示出不同飞机的排气之间相当大的一致性。
Near-field in situ measurements of absorbing material contained in contrail ice has been measured using a particle soot/absorption photometer connected to a counterflow virtual impactor. Vertical profiles made through exhaust plumes from commercial aircraft show a difference in content of absorbing material between the upper and the lower half of the contrail. In the upper part, average concentrations of absorbing material ranged between 0.006 and 0.045 μg m -3 , while much less or nothing was detected in the lower half of the exhaust plume. The observed concentrations of absorbing material after normalization with fuel flow and plume dilution show a considerable consistency between exhaust from different aircraft.