Not an expert, but I doubt 10'x10' would create any significant benefit.
How thick is your ice?
Can you put a jon boat with a gas motor onto the pond and "ice breaker" the pond so the snow falls through?
Is the snow still fluffy such that you can blast some clear patches with a powerful leaf blower?
Finally, if you are only going to be able to do small patches of clearing, then I would do a band around the shoreline. If you clear from the edge to a water depth of 3', then any of the sunlight that does penetrate your ice should be falling on your maximum density of photosynthesizing plants.
Good luck on keeping your fish happy during this stretch of stressful conditions.
