Figure 4.
(a) Eigenvectors for the first 3 PCA components; (b) logarithm of the first 16 eigenvalues; (c) maps showing the spatial variations in magnitude of PCA components 1 through 9.
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.