Figure 2.
Total duration of heat waves in each year during 1994–2015 in the Czech Republic, and their total heat load according to the cumulative excess heat factor (∑EHF).
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.