FIGURE 9.
Spatial resolution measurements over the course of 1 year. (a) Horizontal pixel size. (b) Vertical pixel size
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.