Convolutional Residual-Attention: A Deep Learning Approach for Precipitation Nowcasting

Table 1

The classification criteria of precipitation grades and the data distribution.

Precipitation level	Precipitation range (mm/h)	Overall sample size	Enhanced training set size	Test set size
No rain	<0.1	257	2097	24
Light rain	0.1–1.5	844	2352	60
Moderate rain	1.6–6.9	2794	2503	291
Heavy rain	7.0–14.9	781	1696	85
Rain storm	15.0–39.9	3275	2846	429
Big heavy rain	40.0–49.9	450	2246	69
Extraordinary heavy rain	≥50.0	320	2224	42