Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Time span of each dataset for each task.
| Dataset | Usage | Time span | Days |
|---|---|---|---|
| Internal data | Warning of occurrence | 2021.1.10–2021.12.15. | 340 |
| Warning of development | 2021.1.11–2021.2.5, 2021.9.20–2021.10.5, 2021.10.27–2021.11.15, 2021.12.1–2021.12.14. | 76 | |
| External data | Warning of occurrence | 2021.11.1–2022.1.22. | 83 |
| Warning of development | 2021.12.5–2022.1.16. | 43 |
