ASM belongs to method 3 thus there was no need to generate a population grid. The analysis was carried out vector spatial approach


Analysis for the Country Data with Type 3 (use % of area in buffer)
NOTE: Calculate Area in World Cylindrical Equal Area (54034) projection (on-the-fly)
Steps:
	1. 
In ArcMap, set the Data Frame > Properties > Coordinate System > World Cylindrical Equal Area (EPSG:53034)
	2. 
Added all relevant layers to the map (will be projected on the fly into the WKID 53034)
	3. 
For EA/Admin polygons with population numbers, add column [AREA_KM2] to calculate the total area for each EA/Admin
	4. 
Intersect the EA/Admin polygons with buffer zone 1/5km
	5. 
The resulted intersect polygons:


	* 
add column [AREA_B1KM] to calculate the area for the EAs within buffer
	* 
add column [POP_B1KM] and calculate field = [totpop]*([AREA_B1KM]/[AREA_KM2])


LAYER FIELDS 

#ASM 1km Coastal Buffer#
AFFGEOID: admin level code
GEOID: admin level code
NAME: admin level name
totpop2010: population in the admin unit census 2010
tothh2010: number of households in the admin unit census 2010
AREA_KM2: Area of the admin unit
AREA_B1KM: Area of the admin unit covered by the 1km buffer
POP_B1KM: result of the calculating totpop2010(AREA_B1KM/AREA_KM2)

#AS_Counties_4326# 
AFFGEOID: admin level code
GEOID: admin level code
NAME: admin level name
totpop2010: population in the admin unit census 2010
tothh2010: number of households in the admin unit census 2010