1. Climate

2. Solstice and equinox High sun Insolation zones Climate zones

3. Insolation zones Polar Arctic/Antarctic Mid-Latitude Subtropical Equatorial

4. Koeppen Climate Classification Af - Equatorial Rainforest Aw - Tropical Wet and Dry BW - Desert BSh - Semi-Desert C - Mid-Latitude D - Coninental

7. Mid-Latitude Meteorology Clashing Air Masses Tropical and Polar/Arctic Continental and Maritime

17. Tropical Meteorology Sub-Tropical High Pressure ITCZ - Intertropical Convergence Zone High sun -rainy season Low sun - dry season Mid latitude weather - moves west to east Tropical weather - east to wset - northeast trades

30. Lower Rio Grande Valley Geology Depth of sediments Isostatic subsidence Tectonic system Hydrologic system Fluvial and eolian deposits