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.
The grey boundary lines indicate the five geographical districts in Singapore. The figure was created using R software with base layer obtained from https://landsatlook.usgs.gov/.
