README
This directory contains output data from the BU Monte Carlo model used in:

"Temporal Variability Largely Explains Difference in Top-down and Bottom-up Estimates of Regional-Scale Methane Emissions" 
Vaughn, T.L., et al. 2017

in plain text, tab delimited format.

'/Oct1' and '/Oct2' ('/OctX' hereafter) each contain spatiotemporal methane emission rate data for modeled source categories in two sub-directories:
'/OctX/DownwindMgPerHrPerDegLong' contains simulated downwind longitudinal emission rate profiles in megagrams of methane per hour per degree longitude (Mg/h/deg CH4) for modeled source categories.
'/OctX/GridCellCentroidMgPerHr' contains BU model results by grid cell in megagrams of methane per hour per deg (Mg/h CH4) for modeled source categories and sub-categories.
One text file is included for each day listing model results corresponding to flight windows of top-down aircraft mass balances. 

'/OctX/DownwindMgPerHrPerDegLong'
also includes subtotals for the production sector in:
'/ProductionSubtotalExcMLU' - methane emissions from the production sector excluding those from manual liquid unloadings (MLUs)
'/ProductionSubtotalMLU' - methane emissions from manual liquid unloadings (MLUs)


'/OctX/GridCellCentroidMgPerHr'
The files contain no headers; they are described below with sample data from the file. The location given is the centroid of the BU model grid cell.

GridCellCentroidLongitude	GridCellCentroidLatitude	MeanCH4EmissionRateFromGridCell(Mg/h)	Lower95CICH4EmissionRateFromGridCell(Mg/h)	UpperCH4EmissionRateFromGridCell(Mg/h)	FacilityCountInGridCell*
-93	35.176353	0	0	0	0
-92.96	35.176353	0	0	0	0
-92.92	35.176353	0	0	0	0
-92.88	35.176353	0	0	0	0
-92.84	35.176353	0	0	0	0
-92.8	35.176353	0.0005817836897898	0.000198284411889344	0.0011877813799585	0

MeanCH4EmissionRateFromGridCell(Mg/h) lists the mean of the emission rate distribution developed in the Monte Carlo model for given source categories and sub-categories.
Lower95CICH4EmissionRateFromGridCell lists the lower bound of the 95% confidence interval of the emission rate distribution developed in the Monte Carlo model for given source categories and sub-categories, 
i.e. the 2.5th percentile of cumulative source category emissions.
UpperCH4EmissionRateFromGridCell(Mg/h) lists the upper bound of the 95% confidence interval of the emission rate distribution developed in the Monte Carlo model for given source categories and sub-categories, 
i.e. the 97.5th percentile of cumulative source category emissions.

* FacilityCountInGridCell included only for ProductionTotal (as Wellpad Count), GatheringTotal, and TransmissionTotal. Emissions from grid cells in GatheringTotal with zero facility count are from gathering pipelines.

also includes counts and durations for manual liquid unloadings (MLUs) in:
'/ProductionMLUCount'
'/ProductionMLUDurationHrs'

