shows length of observations maintained by six different research institutes. Modified Di (Photo: Alfred-Wegener-Institut) The Arctic boundary has been observed over many years to better understand and monitor [...] series. The transport estimate during 2004-2010 will be quantified under ARCGATE project. (Photo: Alfred-Wegener-Institut) The ARCGATE also aims to address important questions to design future sustained pan-Arctic [...] for the US side of Bering Strait; the Norwegian Polar Institute (NPI) in Tromsø, Norway and the Alfred Wegener Institute (AWI) in Bremerhaven, Germany for western and eastern Fram Strait, respectively; the