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Differences between monoterpene values from monthly vs hourly output

HazelMooney

Hazel Mooney
New Member
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What version of the code are you using?
Clm4.5, meganv2.1

Have you made any changes to files in the source tree?
-simulations ran at monthly output, and then at hourly output


Describe every step you took leading up to the problem:

I ran a range of simulations for estimating BVOC emissions over the UK with MEGAN/CLM4.5/CESM2.1.
I verified that these totals were correct for the UK, and consistent with other studies.
I ran the same simulations at hourly output for some air quality work i am doing next.
I was plotting up the hourly data and notice the monoterpene values to be unusually small, approx 1000 times smaller than they were in the monthly data.
This is from the exact same simulation, the only difference is a request for hourly output rather than monthly output.
The variables are specified to have the same units.

Are there differences in the hourly and monthly diagnostics that mean the values do not represent the same quantity? For example an area weighting, vegetated area weighting?

And why is this not true of the isoprene data?
 
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