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.
A collection of nine hypothetical aerial transect designs over the eastern Chukchi Sea, differing by: (i) number of flights (4, 8 or 12; displayed on columns), and (ii) the spatial distribution of tracks. The first row includes scenarios where only ‘long’ tracks are flown, trying to achieve more or less even coverage across the study area, while subsequent rows have an increasingly greater number of short tracks flown near the coast to target areas of higher seal densities.
