Analyzing climatic data; relation to photosynthesis, phenological development, and crop yields. Crop-weather models as guides to improved land-use planning and agronomic practices. Pre: 101 or 300 or 400 or 401 or 405 or ATMO 101 or ATMO 200 or ATMO 302 or ATMO 303 or ATMO 310, or consent.