3
$\begingroup$

I have a grid shapefile that has a resolution of 1km x 1km.

This grid is then used to spatially allocate road emissions.

My goal is to get the emissions in the unit: μg m-2 s-1(microgram per square meter per second) since this is the emission unit for aerosols in the WRF/Chem

I manage to get the emissions for a certain grid cell by multiplying the total emissions in (micrograms/s) to the ratio of the road length present inside the grid cell to the total road lengthenter image description here

Now I have the emission for that grid cell in μg s-1 (micrograms/second).

My question may be silly or simple, but I am thinking if I still need to divide my emissions by 1000 (since 1km = 1000m) to get the final emission unit I need

(Final unit needed: μg m-2 s-1(microgram per square meter per second))

Am I right? Hoping someone could help me with this. Thanks!

Improve this question
$\endgroup$

1 Answer 1

Reset to default
2
$\begingroup$

You have got your emissions over a square kilometer. To get to square meters you divide by 1000000 since $1km^2=10^6m^2$.

Improve this answer
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.