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.
Left: Contour of the Argelès-Gazost basin (blue line) and observational points (black dots). Upper right: Computed gravity anomaly of the best model after the particle swarm optimization (PSO) execution. Lower right: Best depth model estimated via PSO (PP algorithm). Figure from [34].
