 And by this time, the iceberg had completely circled the Beaufort Gyre.Meanwhile, while the ARLIS II and T-3 ice stations were occupied, the Arctic Research Laboratory established two temporary drift stations northeast of Barrow primarily for scientific studies of telluric currents, geomagnetic variation, micropulsations, and aurora.ARLIS III was established on 10 February 1964 and was evacuated on 16 May 1964, while ARLIS IV operated between February and May 1965.