Turning off the grid cell subsetting

[bokhaeng]

Turning off the grid cell subsetting for 4 km run groups when working with a nonCONUS 9 km or 3 km domain. The tool should not try to split a 3 km grid cell into nine 4 km sources

[cseppan]

Commit 8b787eb adds environment variables to configure grid cell subsetting for the np_oilgas sector.

USE_GRID_CELL_SUBSETTING_YN: set to N to turn off grid cell subsetting, default is enabled
OUTER_GRID_CELL_SIZE: size of the outer grid cells as an integer (e.g. 9, 12), default is 12
INNER_GRID_CELL_SIZE: size of the inner grid cells as an integer (e.g. 3, 4), default is 4

If grid cell subsetting is turned on, the OUTER_GRID_CELL_SIZE must be a multiple of the INNER_GRID_CELL_SIZE.