| 摘要 |
Methods and apparatuses, including computer program products, are described for predicting the potential for severe weather. Data associated with lightning activity is received by a computing device. A location, a movement speed, a movement direction, and a lightning rate of one or more cells of lightning activity are determined by the computing device based on the received data. The lightning rate is compared, by the computing device, to a threshold lightning rate. One or more geographical areas at risk are determined by the computing device based on the location, the movement speed and the movement direction of the one or more cells of lightning activity. An alert is issued by the computing device to one or more remote devices monitoring the geographical areas when the lightning exceeds a value of the threshold lightning rate. |
| 主权项 |
1. A computer-implemented method for predicting the potential for severe weather, the method comprising:
receiving, by a computing device, data associated with lightning activity, wherein the data includes lightning flash data collected during a specific time interval; identifying, by the computing device, one or more cells of lighting activity based upon the lightning flash data, the identifying comprising:
positioning each lightning flash on a map according to its geographic location;superimposing a first grid on the map and identifying sectors of the first grid with a high density of lightning flashes;superimposing a second grid on the identified sectors of the map to locate closed contours associated with a lightning cell; andgenerating a convex polygon from each of the closed contours; determining, by the computing device, a movement speed, a movement direction, and a lightning rate of the one or more cells of lightning activity based on the received data; comparing, by the computing device, the determined lightning rate to a threshold lightning rate; determining, by the computing device, one or more geographical areas at risk based on the location, the movement speed, and the movement direction of the one or more cells of lightning activity; and issuing, by the computing device, an alert to one or more remote devices monitoring the geographical areas at risk when the lightning rate exceeds a value of the threshold lightning rate. |
