Climate Solstice and equinox • High sun • Insolation zones • Climate zones Insolation zones • • • • • Polar Arctic/Antarctic Mid-Latitude Subtropical Equatorial Koeppen Climate Classification • Af - Equatorial Rainforest • Aw - Tropical Wet and Dry • BW - Desert • BSh - Semi-Desert • C - Mid-Latitude • D - Coninental Mid-Latitude Meteorology • Clashing Air Masses • Tropical and Polar/Arctic • Continental and Maritime Lower Rio Grande Valley Geology • • • • • Depth of sediments Isostatic subsidence Tectonic system Hydrologic system Fluvial and eolian deposits [...]... 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 Lower Rio Grande Valley Geology • • • • • Depth of sediments Isostatic subsidence Tectonic system Hydrologic system Fluvial and eolian deposits