TITLE:
Day Time Seasonal Variation of Ozone and Its Association with Methane at Different Pressures over Barrow, Alaska
AUTHORS:
Nikunj Jaitawat, Vimal Saraswat
KEYWORDS:
Surface Ozone, Methane, Solar Flux, Climate and Season
JOURNAL NAME:
Atmospheric and Climate Sciences,
Vol.12 No.2,
April
26,
2022
ABSTRACT: This
study has explored the seasonal day time variations of the two most important
trace gases involved in global warming i.e.,
Methane (CH4) and Ozone (O3). Since solar activities also
play a vital role in the formation of ozone, and hence solar flux data is also
consulted in the present paper. Here we have discussed, day hours seasonal
variation of O3, solar flux and CH4 at different
pressures for four different seasons i.e.,
winter, summer, autumn and spring. We have evaluated the correlation between O3,
solar flux and CH4 over an American station “Barrow, Alaska” for a
period of 18 years and conclude that in
every season of the year, CH4 shows linear increment with a good
significance level above 95%. The autumn season shows a good correlation
between solar flux and O3 with a maximum value of 0.53 in October
and a minimum value of 0.34 in November month. In the winter season, CH4 shows linear increment with a significance level above 95% at every pressure
height. We also conclude that O3 shows an increment trend in March
and April months, but its negative trend is found in May month of the spring
season.