Tropical cyclone wind swath generation by Climate Wikience


The figure above shows a wind speed “swath” generated by ChronosServer for hurricane Katrina (August, 2005) using CFSR wind speed for 10 meters above the surface. For each date during the hurricane, ChronosServer extracts 12°×12° region for eastward (u) and northward (v) wind components around a hurricane center, calculates wind speed, uses bicubic spline interpolation to derive regular 0.25° × 0.25° grid from original Gaussian grid (about 0.5° × 0.3°), overlays regions obtained for each track center and selects maximum wind speed for a grid point among intersecting regions.