Land | 3 | |
Surface Waters / Wetlands | 3 | |
Birds | 1 | |
Land Mammals | 1 | |
Weather | 1 |
Ice / Snow Change | 8 | |
Flooding / Draining | 2 | |
Extreme Precipitation | 1 | |
Extreme Temperature | 1 | |
Permafrost Change | 1 | |
Seasonal Timing | 1 |
3 | 2 | 1 | 2 |
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3 | 4 | 1 |
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SPRING | 7 | |
FALL | 1 |
United States | 5 | |
Canada | 1 | |
Norway | 1 |