Figure 1.
The geolocation of the 21 lakes in Wuhan (ArcGIS software version 9.3 (https://www.arcgis.com/index.html)).
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.