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In situ measurements of BrO During AASE II
Author(s) -
Avallone L. M.,
Toohey D. W.,
Schauffler S. M.,
Pollock W. H.,
Heidt L. E.,
Atlas E. L.,
Chan K. R.
Publication year - 1995
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/95gl00393
Subject(s) - middle latitudes , atmospheric sciences , bromine , polar , environmental science , standard deviation , stratosphere , latitude , meteorology , climatology , chemistry , geodesy , geology , physics , mathematics , statistics , organic chemistry , astronomy
BrO measured from the NASA ER‐2 during AASE II exhibited a mean value (for 20‐minute averages) of 5.4±0.3 pptv, with a standard deviation of 3.1 pptv. Ratios of BrO to available inorganic bromine (Br y ) show only slight increases in polar regions relative to midlatitudes. A comparison between observed latitudinal and diurnal variations of this same ratio and that calculated by photochemical models shows reasonable agreement in behavior, but significant discrepancies in magnitude. It is unclear whether this difference is due to errors in measurements, models or both.