Table 5 Forecasted results using the thresholds of the rate of change of PWV.

From: Establishing a method of short-term rainfall forecasting based on GNSS-derived PWV and its application

The rate of change of PWV (mm/h) Forecasted frequency All rainfall events Percentage (%) Correct rate (%)
0 593 2782 21.32 92.80
0.2 580 2392 24.25 90.77
0.4 563 1862 30.24 88.11
0.6 487 1349 36.10 76.21
0.8 424 992 42.74 66.35
1.0 337 685 49.2 52.74
  1. Note: The annual rainfall events at station LJSL is 639; ‘forecasted frequency’ refers to correctly forecasted events in the threshold interval; ‘all rainfall events’ refers to total forecasted event (including correctly forecast and falsely forecast) in the interval.