There's a lot of information about figuring in the average albedo of a planet when calculating the base temperature for a planet. What if you want to get more granular, down to each (let's say) 10 degree latitude band?
We know different things have a different albedo. Estimates vary, but for the sake of this discussion, let's say our various albedo break down like this:
- Land: .25
- Water: .06
- Land Ice: .9
- Water Ice: .65
So if we have a 10-degree band of latitude consisting of...
- .25 land
- .15 land ice
- .10 water ice
- .50 water
...when plugging albedo into our temperature equation, what number does one use?
Do we take an average of the different albedo ratings, figuring in the percentage of surface for each albedo?
Or does the strongest albedo cancel out the rest? Or the weakest?
(Caveats to keep this question from being a super-complex climate modeling rabbit-hole: don't worry about all the other variables that you and I both know go into doing a good-enough-for-worldbuilding climate model. Assume 0 elevation; assume we're looking at the average temp across the year, don't worry about coasts vs interiors, don't worry about wind or ocean currents, etc. etc.)
Links to sources appreciated -- thanks very much!