I live in Fairbanks, AK. The minimum caliber acceptable for bear protection up here is .44 mag -that's minimum. That means you are in the market for a revolver. I'd note here that having the same pistol for defense and field work in your profession is a bad idea. The pressures generated by a .44 mag in an enclosed space can cause permanent hearing damage and is generally a BAD idea for someone new to handguns. In fact, you will hate shooting your .44 mag if it's all you've shot since a .22LR. I'd suggest getting two guns: a 9mm for the home (Glock 19, Springfield XD9) and a Smith & Wesson or Ruger double action revolver with at least a 4" barrel. A longer barrel like 5.5" would be better by using more of the cartridges pressure and taming recoil a touch. The Ruger Super Redhawk is superb and will take anything you can throw at it or throw it in.
Get proficient with the smaller caliber before getting acquainted with the .44. The .44 could save your life if you are prepared to use it properly under stress. The same skills you learn shooting the 9mm will apply to the revolver in .44 as well.