Table 1. Definition of North Atlantic climatological (black) and
synoptic (red) characteristics.
Characteristic |
Definition |
JDAY |
Julian date |
TIME ( UTC) |
Time |
LAT ( °N) |
Latitude |
LON ( °W) |
Longitude |
MSSW ( kt) |
Maximum sustained surface wind speed |
CP ( mb) |
Central pressure |
DML ( m) |
Climatological depth of mixed-layer |
DTL ( km) |
Distance to land |
SPD (kt) |
Storm speed of motion |
HDG (°) |
Storm heading (360° is north) |
SST ( °C) |
Observed sea-surface temperature |
SHRD ( kt) |
850-200 mb area-averaged vertical shear within 600 km radius |
SHRS ( kt) |
850-500 mb area-averaged vertical shear within 600 km radius |
RVOR( 10-6 S-1 ) |
850 mb area-averaged relative vorticity within 1000 km radius |
REFC ( ms-1 d-1) |
200 mb area-averaged relative eddy angular momentum flux convergence from 100-600 km radius |
U200 ( kt) |
200 mb area-averaged u component of wind within 1000 km radius |
D200 ( 10-6 S-1 ) |
200 mb area-averaged divergence within 1000 km radius |
T200 ( °C) |
200 mb area-averaged temperature within 1000 km radius |