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1 vote
1 answer
141 views

Does "Arctic Greening" mean an increase in the spatial extent of vegetation, an increase in ...

I am trying to study the impact of biogenic volatile organic compounds (BVOCs) on the atmospheric chemistry of the Arctic Region which has been said to be "greening", by taking HCHO as a proxy.
Sujai Banerji's user avatar
1 vote
1 answer
120 views

Can the Air Mass Factor (AMF) be negative?

I am using a untraviolet-visible spectrometer to measure Vertical Column Densities (VCDs) of trace gases up to the stratosphere. It is physically impossible to have negative VCDs. I have observed some …
Sujai Banerji's user avatar
4 votes
0 answers
80 views

Do NO2 and O3 titrate each other out in the atmosphere?

Here is a plot of the vertical column densities of NO2 and O3 from an ultraviolet-visible spectrometer in Fairbanks, Alaska. It is interesting to see that when NO2 dips, O3 rises, and vice versa. Al …
Sujai Banerji's user avatar
5 votes
0 answers
86 views

What are the benefits of direct sun viewing spectrometer over a backscatter measuring spectr...

I am using a Pandora spectrometer and a MAX-DOAS spectrometer to quantify the amount of formaldehyde (HCHO) present in the troposphere and stratosphere in Fairbanks, Alaska. Both the spectrometers use …
Sujai Banerji's user avatar