5 * Asynchronous IO and data loading
6 * Pre-load textures and polys in OpenGL
9 * Display iso surfaces of volume scans
12 * Replace RIDGE overlays with GIS images
13 * Set up LLH coordinate system
14 * Generic Time/Location selection
15 (not dependent on level 2 listings)
18 * Derived from Level 2:
19 * Composite reflectivity
20 * Storm relative motion