Krill diel vertical migration: A diagnostic for variability of wind forcing over the Beaufort and Chukchi Seas

Measurements of echo intensities were acquired in shelf waters of the western Beaufort Sea near Utqiaġvik (formerly Barrow), Alaska by upward-looking 307 kHz acoustic Doppler current profilers during a 2008–2015 series of late-summer mooring deployments. These echo signals were analyzed for characteristic patterns of krill diel vertical migration (DVM) from which daily and seasonally-averaged DVM indices (DVMI) were derived. Time varying...