Event label Optional label Method/Device Abbreviation O2A Registry URI Date/Time Latitude Longitude Elevation Date/Time end Latitude end Longitude end Elevation end Comment BK-2 Rotary core drilling RCD 2012-04-19T00:00:00 71.42230 132.08480 -4.3 2012-04-23T00:00:00 URB-4T, Vorovskii Factory for Drilling Equipment, Ekaterinburg, Russia; Sea ice thickness: 2.09 m; Sea water column: 2.21 m Samoylov_Island_RIM Multiple investigations MULT 2012-07-01T00:00:00 72.37000 126.49000 2012-07-13T00:00:00 all measurements were conducted in polygon rims Lena_TD_Sam_2012_1 Metal probe MPROBE 2012-08-11T00:00:00 72.37418 126.49588 2012-08-11T00:00:00 Lena_TD_Muos_2012_2 Metal probe MPROBE 2012-08-11T00:00:00 71.59481 129.95036 2012-08-20T00:00:00 L12-01-1 Gauge station GS 2012-08-14T00:00:00 72.00255 127.07228 Main channel Lena2012_all Multiple investigations MULT 2012-08-14T00:00:00 2012-08-20T00:00:00 Lena_TD_Muos_2012_1 Metal probe MPROBE 2012-08-15T00:00:00 71.55490 129.93922 2012-08-23T00:00:00 L12-2H-1 Gauge station GS 2012-08-15T00:00:00 72.40778 126.91331 Channel: Bykovskaya L12-11-1 Gauge station GS 2012-08-20T00:00:00 73.00000 122.50694 Channel: Olenekskaya L12-10-1 Gauge station GS 2012-08-22T00:00:00 72.85406 123.42711 Channel: Krestahkskaya L12-09-1 Gauge station GS 2012-08-23T00:00:00 72.77647 123.70500 Channel: Olenekskaya L12-07-1 Gauge station GS 2012-08-23T00:00:00 72.50581 125.28622 Channel: Olenekskaya L12-08-1 Gauge station GS 2012-08-23T00:00:00 72.75706 123.64836 Channel: Angardam L12-3H-1 Gauge station GS 2012-08-24T00:00:00 72.42693 126.63297 Channel: Trofimovskaya L12-5H-1 Gauge station GS 2012-08-25T00:00:00 72.29614 126.73008 Channel: Olenekskaya L12-6H-1 Gauge station GS 2012-08-26T00:00:00 72.41844 126.45656 Channel: Tumatskaya Lena_TD_Sam_2012_2 Metal probe MPROBE 2012-08-29T00:00:00 72.36850 126.51544 2012-08-30T00:00:00 L12-4H-1 Gauge station GS 2012-08-29T00:00:00 72.37055 126.73008 Main channel RU-Land_2012_Lena_all Multiple investigations MULT 2012