WHAT SIMULATED RADAR REFLECTIVITY PRODUCTS ARE PRODUCED BY THE NAM-WRF?
_*Radar reflectivity products from the NAM model *_ At a given forecast time, three-dimensional radar reflectivities are calculated at the native model resolution (vertical and horizontal) from the algorithm described below using as input the three-dimensional mixing ratios of rain and precipitation ice (including variable ice densities to distinguish between snow, graupel, and sleet), and the two-dimensional convective surface precipitation rates. The following two-dimensional radar reflectivity products are derived from the three-dimensional forecast reflectivities: 1. Lowest level reflectivity – calculated at the lowest model level above the ground. 2. Composite reflectivity – maximum anywhere within the atmospheric column. 3. 1 km and 4 km AGL reflectivity – interpolated to heights of 1 km and 4 km, respectively, above the ground.
