Figure 2.
Annually averaged values for τa (550 nm) over China: model-estimated values are indicated by color coding; numbers and crosses indicate measurement-based values from Zhou et al. (23) and the locations where the data were collected.
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.