GRLevel3 Radar Software Key
From the GRLevel3 Owners' Forum There are two types of mesocyclone icons in GRLevel3: 1) NMD icons - these are the icons you'll see in GR3 1.40 and above when viewing live L3 data and recent archived L3 data. They come from the New Mesocyclone Detection algorithm in the nexrad computer. When you hover your mouse cursor over an NMD icon, you'll see the following information: Cell: the storm cell ID associated with the NMD CircId: id for the NMD SR: 3d strength rank from 1 (very weak) to 25 (end of the world!) LLRV: low-level rotational velocity, (Vmax-Vmin)/2 LLDV: low-level delta velocity (gate-to-gate) Base: lowest altitude of detection ('<' means lowest tilt) Depth: total height of the rotation ('>' when base has '<') STMREL: depth of rotation compared to cell heights MaxRV: maximum rotational velocity in the stack of tilts hgt: height of MaxRV MSI: Mesocyclone Strength Index (>3600 is strong) 2) MESO icons - these are the older Mesocyclone Detection Algorithm icons you'll see on archived data and sites that don't output the NMD product. When you hover your mouse cursor over the icon, you'll see: Type: the type of rotation detected ("Meso" or "3DC Shr") Cell: the storm ID of the cell closest to the rotation Base: altitude of lowest tilt containing rotation (ARL) Top: altitude of highest tilt containing rotation (ARL) RAD: radial diameter of rotation (nautical miles) AZD: azimuthal diameter of rotation (nautical miles) Shear: strength of rotation in the mesocyclone (1/1000 seconds) "Meso" is shown for rotations that are seen on 3 or more tilts and "3DC Shr" for those that are seen on only 2 tilts. |