using a function
using a function

ldecicco-USGS/vizlab,aappling-usgs/vizlab,jiwalker-usgs/vizlab,ldecicco-USGS/vizlab,jiwalker-usgs/vizlab,jiwalker-usgs/vizlab,aappling-usgs/vizlab,USGS-VIZLAB/vizlab,USGS-VIZLAB/vizlab,USGS-VIZLAB/vizlab,ldecicco-USGS/vizlab,aappling-usgs/vizlab,lindsaycarr/vizlab,lindsaycarr/vizlab,lindsaycarr/vizlab