Variation of free tropospheric total nitrate at Mauna Loa observatory, Hawaii

Document Type

Article

Date of Original Version

1-1-1994

Abstract

The 3-year mean and median of TN mixing ratios were 113 parts per trillion by volume (pptv) and 93 pptv, respectively. Each year the TN concentrations at MLO during the spring and summer were larger by more than a factor of 2 than those during the fall and winter. The springtime peak TN corresponded to incidents of increased Asian dust over the northern Pacific Ocean. Isentropic back trajectories confirmed that spring air masses with high TN originated over the Asian continent. -from Authors

Publication Title, e.g., Journal

Journal of Geophysical Research

Volume

99

Issue

D6

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