Increased Stratospheric Hydrogen Chloride in the El Chich�n Cloud
Increased Stratospheric Hydrogen Chloride in the El Chich�n Cloud
复制标题
奇琴云中平流层氯化氢含量增加
作者：
W. Mankin;M. Coffey
1982年3月和4月El Chich�n火山喷发前和喷发后3至6个月，在20�至40�N的纬度范围内，对海拔12公里以上的氯化氢柱总量进行了光谱观测。在火山气雾云区域，即使考虑到全球氯化氢每年5%的长期增长，喷发后的氯化氢总柱也增加了约40%。氟化氢的柱状量没有这样的增加。
Spectroscopic observations of the total column amount of hydrogen chloride above an altitude of 12 kilometers in the latitude range 20� to 40�N have been made both before and 3 to 6 months after the eruptions of El Chich�n Volcano in March and April 1982. In the region of the cloud of volcanic aerosols, the hydrogen chloride total column after the eruptions increased by approximately 40 percent, even after allowance is made for the global secular increase in hydrogen chloride of 5 percent per year. The column amounts of hydrogen fluoride show no such increase.