Assistant Commissioner Marianne Ryan is the new commanding officer of "K Division" in Alberta. (RCMP )

The RCMP has a new commanding officer in Alberta, a woman whose policing career spans three decades, the force announced Friday.

Assistant Commissioner Marianne Ryan takes over as commanding officer of "K Division" from Deputy Commissioner Dale McGowan.

RCMP Commissioner Bob Paulson said Ryan, a 31-year veteran of the force, has won the respect of her staff and partners by focusing on results.

Ryan assumes the rank of deputy commissioner, taking responsibility for 112 RCMP detachments across the province.

Since 2011 Ryan has been the officer-in-charge of criminal operations in Alberta and her policing experience includes leadership roles in major investigations into organized crime, the RCMP said.

Her appointment takes effect immediately.

A formal change of command ceremony will take place at a later date, the RCMP said.