 Oke idemmiri na-abịa, kee nkwụcha Dịka ọkammụta nihe gbasara igwe nke a na-akpọ Geographic Information System -GIS na bekee nke ụlọọrụ National Expert na bekee nke siri kọwa, bụ Anthony Okenwa ide bụ ọdachi si na chi na-eme ma oke mmiri ọzụzụ zoo nobere oge maọbụ na mmiri tofee oke osimiri. 