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.
Growth of basins with tunnel and TS identification. The clusters are grown in the order: left, right, top, bottom. A tunnel is detected in the middle figure of the bottom line (red). Points belonging to TSs are indicated with yellow boundaries.
