[{_id:ObjectId("638f9866d9014fabfc47275e"),address:"801 Pine St, Anchorage, AK",name:"Russian Jack Skatepark",location:{type:"Point",coordinates:["61.214855","-149.793563"]}}]

db.collection.update({},[{$set:{"location.coordinates":[{$toDouble:{$first:"$location.coordinates"}},{$toDouble:{$last:"$location.coordinates"}}]}}],{multi:true})