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 length
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!