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The effects of variable biome distribution on global climate
D A Noever1, A Brittain, H C Matsos
1National Aeronautics and Space Administration, George C. Marshall Space Flight Center, Huntsville, AL 35812, USA. dnoever@aol.com
Bio Systems
|January 1, 1996
Summary
This study introduces a new model linking biome distribution to global temperature. Optimized future biomes could minimize greenhouse effects, highlighting biome shifts as a key climate forecasting factor.
Area of Science:
- Climate Science
- Ecology
- Environmental Modeling
Background:
- Current climate models often fix biome distribution, neglecting feedbacks.
- Previous biome maps do not account for climatic feedbacks like radiation and temperature.
Purpose of the Study:
- To develop a model examining albedo-related effects of biome distribution on global temperature.
- To generate an optimized future biome distribution that minimizes projected greenhouse effects.
Main Methods:
- Developed a model to assess biome distribution's impact on global temperature via albedo.
- Employed a genetic algorithm for combinatorial search of optimized biome distribution under constraints.
- Tested the model on historical biome changes since 1860.
Main Results:
- Model accurately fits historical temperature trends and magnitude of change.
- Oceans significantly influence global temperature regulation compared to continental biomes.
- Algal beds, estuaries, and tropical deciduous forests are identified as key radiative levers.
- Optimized future scenarios require decreased desert areas and increased forested regions to stabilize temperature.
Conclusions:
- Biome distribution is a significant factor in climate change projections.
- Dynamic biome modeling is crucial for accurate climate forecasting.
- Strategic biome management can mitigate future greenhouse effects on global temperature.
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