diff --git a/batch/scripts/cogify.sh b/batch/scripts/cogify.sh
index f923ae821..96893567d 100755
--- a/batch/scripts/cogify.sh
+++ b/batch/scripts/cogify.sh
@@ -16,32 +16,32 @@ ME=$(basename "$0")
 set -x
 # download all GeoTiff files
 
-if [[ $(aws s3 ls "${PREFIX}/merged.tif") ]]; then
-  aws s3 cp "${PREFIX}/merged.tif" merged.tif
+if [[ $(aws s3 ls "${PREFIX}/${IMPLEMENTATION}_merged.tif") ]]; then
+  aws s3 cp "${PREFIX}/${IMPLEMENTATION}_merged.tif" "${IMPLEMENTATION}_merged.tif"
 else
   aws s3 cp --recursive --exclude "*" --include "*.tif" "${SRC}" .
 
   # create VRT of input files so we can use gdal_translate
-  gdalbuildvrt merged.vrt *.tif
+  gdalbuildvrt "${IMPLEMENTATION}_merged.vrt" *.tif
 
   # merge all rasters into one huge raster using COG block size
-  gdal_translate -of GTiff -co TILED=YES -co BLOCKXSIZE="${BLOCK_SIZE}" -co BLOCKYSIZE="${BLOCK_SIZE}" -co COMPRESS=DEFLATE -co BIGTIFF=IF_SAFER -co NUM_THREADS=ALL_CPUS --config GDAL_CACHEMAX 70% --config GDAL_NUM_THREADS ALL_CPUS merged.vrt merged.tif
-  aws s3 cp merged.tif "${PREFIX}/merged.tif"
+  gdal_translate -of GTiff -co TILED=YES -co BLOCKXSIZE="${BLOCK_SIZE}" -co BLOCKYSIZE="${BLOCK_SIZE}" -co COMPRESS=DEFLATE -co BIGTIFF=IF_SAFER -co NUM_THREADS=ALL_CPUS --config GDAL_CACHEMAX 70% --config GDAL_NUM_THREADS ALL_CPUS "${IMPLEMENTATION}_merged.vrt" "${IMPLEMENTATION}_merged.tif"
+  aws s3 cp merged.tif "${PREFIX}/${IMPLEMENTATION}_merged.tif"
 fi
 
-if [[ $(aws s3 ls "${PREFIX}/merged.tif.ovr") ]]; then
-  aws s3 cp "${PREFIX}/merged.tif.ovr" merged.tif.ovr
+if [[ $(aws s3 ls "${PREFIX}/${IMPLEMENTATION}_merged.tif.ovr") ]]; then
+  aws s3 cp "${PREFIX}/${IMPLEMENTATION}_merged.tif.ovr" "${IMPLEMENTATION}_merged.tif.ovr"
 else
   # generate overviews externally
-  gdaladdo merged.tif -r "${RESAMPLE}" -ro --config GDAL_NUM_THREADS ALL_CPUS --config GDAL_CACHEMAX 70% --config COMPRESS_OVERVIEW DEFLATE
-  aws s3 cp merged.tif.ovr "${PREFIX}/merged.tif.ovr"
+  gdaladdo "${IMPLEMENTATION}_merged.tif" -r "${RESAMPLE}" -ro --config GDAL_NUM_THREADS ALL_CPUS --config GDAL_CACHEMAX 70% --config COMPRESS_OVERVIEW DEFLATE
+  aws s3 cp merged.tif.ovr "${PREFIX}/${IMPLEMENTATION}_merged.tif.ovr"
 fi
 
 # convert to COG using existing overviews, this adds some additional layout optimizations
-gdal_translate merged.tif cog.tif -of COG -co COMPRESS=DEFLATE -co BLOCKSIZE="${BLOCK_SIZE}" -co BIGTIFF=IF_SAFER -co NUM_THREADS=ALL_CPUS -co OVERVIEWS=FORCE_USE_EXISTING --config GDAL_CACHEMAX 70% --config GDAL_NUM_THREADS ALL_CPUS
+gdal_translate "${IMPLEMENTATION}_merged.tif" "${IMPLEMENTATION}.tif" -of COG -co COMPRESS=DEFLATE -co BLOCKSIZE="${BLOCK_SIZE}" -co BIGTIFF=IF_SAFER -co NUM_THREADS=ALL_CPUS -co OVERVIEWS=FORCE_USE_EXISTING --config GDAL_CACHEMAX 70% --config GDAL_NUM_THREADS ALL_CPUS
 
 # upload to data lake
-aws s3 cp cog.tif "${TARGET}"
+aws s3 cp "${IMPLEMENTATION}.tif" "${TARGET}"
 
 # delete intermediate file
 aws s3 rm "${PREFIX}/merged.tif"