# Variable Name Short Description Category Unit
1 AMTCP Annual Mean TCP at each grid Dependent Variable mm
2 MaxETCP Historical Maximum Event TCP at each grid Dependent Variable mm
3 ETCP Event TCPs at each grid Dependent Variable mm
4 ETCP90 All TCP events with precipitation greater than the 90 percentile of the ETCP. Dependent Variable mm
5 Mean Mean elevation within each 0.25° grid box Independent Variable, Static Meter
6 Max Maximum elevation within each 0.25° grid box Independent Variable, Static Meter
7 Min Minimum elevation within each 0.25° grid box Independent Variable, Static Meter
8 Range Difference between Max and Min Independent Variable, Static Meter
9 StanDev Standard Deviation for elevations within each 0.25° grid box Independent Variable, Static Meter
10 Slope The ratio between the rise and the run (tan θ) for each 0.25° grid box Independent Variable, Static NA
11 Aspect The Slope’s major orientation angle from the normal (north as 0°) for each 0.25° grid box Independent Variable, Static Degree
12 Distant to Track Nearest sphere distance from each precipitation grid to the storm track Independent Variable, Dynamic Km
13 Track Cluster Track Cluster defined by the regression mixture model by Gaffney et al. (2007) Independent Variable, Dynamic NA
14 Lon Longitude of each 0.25° grid Independent Variable, Static Degree
15 Lat Latitude of each 0.25° grid Independent Variable, Static Degree
16 Distance to Coast Nearest sphere distance from each precipitation grid to the Gulf of Mexico Coast Independent Variable, Static KM
17 Month Month when each TCP event happened Independent Variable, Dynamic NA
18 Forward U Speed A vector for the mean of east-west (east as positive sign) component of the storm movement for each TCP event Independent Variable, Dynamic Knot
19 Forward V Speed A vector for mean of the north-south (north as positive sign) component of the storm movement for each TCP event Independent Variable, Dynamic Knot
20 Forward Speed The magnitude of vector U plus vector V Independent Variable, Dynamic Knot
21 Forward Speed Variance Variance of the Forward Speed for each TCP event Independent Variable, Dynamic Knot
22 Forward Speed Angle The direction of the Forward Speed measured clockwise starting from the north for each TCP event Independent Variable, Dynamic Degree
23 Forward Speed Angle Variance Variance of the Forward Speed Angle for each TCP event Independent Variable, Dynamic Degree
24 Stalled A dummy variable that indicates whether the storm is stalled or not (stalled storms move toward south in this case are defined as 1 and other storms are defined as 0) Independent Variable, Dynamic NA
25 Event Duration How long a TCP event last Independent Variable, Dynamic Days
26 ATCP Cluster The clusters of TCP grids defined by the anomaly of their annual mean TCP Independent Variable, Static NA