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Daily Reports

7/2-15

Position: 87° 06.5' N, 62° 32' W, temperature below - 40° C, air pressure 1005 hPa, wind 4 knots from the N. Ice drift 0.1 knot to the SE. Shooting seismic reflection all day. Deployed the short sediment corer and recovered a 20 cm core for the Ice2Ice-project.

6/2-15

Position: 87° 05.6' N, 63° 23' W, temperature below - 40° C, air pressure 997 hPa, wind 17 knots from the S. Ice drift 0.2 towards ENE. Shooting seismic reflection all day. The camera sled was deployed in 1.260 m water depth. About 30 minutes of video recorded with the sled in motion and several life forms imaged which we have not seen at our earlier deployments. A CTD cast made to 1180 meter depth.

5/2-15

Position: 87° 03.8' N, 65° 28' W, temperature - 36° C, air pressure 990 hPa, wind 15 knots from the S. Ice drift 0.4 knot to the E. Shooting seismic reflection all day. Made a CTD cast. On the way up, the CTD remained at 600 meter depth for one hour because a hydraulic hose burst and had to be replaced. Reamed the hydro hole.

4/2-15

Position: 87° 04.0' N, 67° 47' W, temperature - 23° C, air pressure 981 hPa, wind 10 knot from the N. Ice drift 0.2 knots towards E. Moved seismic acquisition to back-up PC which has an identical set-up. Restarted seismic shooting at 1245 hours. Checked radiation flux instrument and cleaned sensors. Made another CTD cast down to 2.400 meter depth - water depth is 2.550 meter. Audun moved 1.000 liter diesel up to the hovercraft.

3/2-15

Position: 87° 05.9' N, 67° 47' W, temperature below - 40° C, air pressure 1017 hPa, wind 5 knots from the N. Ice drift 0.0 knot. PC completed 15 hour disk scan/repair cycle. Reboots in Windows as usual, but flips back to fault conditions. Checked the radiation flux instruments and cleaned sensors. Made the first CTD cast down to 2.450 meter in 2560 meter water depth

2/2-15

Position: 87° 06.0' N, 67° 48' W, temperature - 28° C, air pressure 1027 hPa, wind 10 knots from the N. Ice drift 0.0 knot. Seismic acquisition PC is down - we are working on the problem. Audun moved fuel towards the camp from a temporary fuel bladder location. Sent an invitation to Dr. Artur Chilingarov for a Russian polar scientist/technician to replace Audun at crew change.

1/2-15

Position: 87° 06.8' N, 67° 40' W, temperature -37° C, air pressure 1029 hPa, wind 10 knots from the N. Ice drift 0.1 knots towards east. Audun connected up the wind mill, but outside switch box was corroded and had to be replaced. CTD was checked and batteries changed. Replaced start batteries (2 x 110 Ahr.) and service batteries (4x 110 Ahr.) in the hovercraft. The seismic data logging PC crashed again. We are not drifting anywhere for the moment so no opportunities are lost.

31/1-15

Position: 87° 07.4' N, 67° 45' W, temperature - 39° C, air pressure 1029 hPa, wind 3 knots. Ice drift 0.1 knot to the east. PC for seismic data logging crashed, but came up again. Laid out 12 Volt power from the hovercraft to the radiation flux instruments to avoid maintaining batteries out in the cold.

30/1-15

Position: 87° 07.5' N, 68° 12' W, temperature - 31° C, air pressure 1025 hPa, wind 7 knots from the NE. Ice drift 0.1 towards E. Checked radiation flux instruments; cleaned sensors, changed fan battery (80 Ahr., 13 Volt, changed memory card and battery on the data logger. Used battery measured 12.2 Volt. Checked the weather station. Worked on cleaning the hydro hole using the vertical ice saw. Discovered the air gun hanging from the air hose and the signal cable - the wire had broken. Recovered the air gun. Insufficient wind to test the wind mill.

29/1-15

Position: 87° 08.3' N, 68° 54' W, temperature - 27° C, air pressure 1025 hPa, wind 10 knots from NE. Ice drift 0.1 knot to the E. Shooting seismic reflection all day. Cleaning up after several days of blowing snow. The wind mill came up on a pole, and the power line need to be connected

28/1-15

Position: 87° 10.' N, 67° 28' W, temperature - 22° C, air pressure 1010 hPa, wind 33 knot from the NE. Ice drift 0.5 knots towards W. Blowing snow. Shooting seismic reflection all day. By 1400 hours, the drift slowed down and the direction turned back east towards Lomonosov Ridge. Audun worked on the wind mill taking it apart and checking for salt.

27/1-15

Position: 87° 08.9' N, 64° 33' W, temperature - 24° C, air pressure 1017 hPa, wind 27 knots from the NE. Ice drift 0.5 knots towards W. Blowing snow. Shooting seismic reflection all day. The shot interval was 80 second at mid-day. We had to service the air gun in the early morning. Checked the radiation flux instruments, cleaned sensors and changed battery (110 Ahr. 12.8 V) for the fan.

26/1-15

Position: 87° 07.7' N, 61° 16' W, temperature - 24° C, air pressure 1021 hPa, wind 23 knots from the NNE. Ice drift 0.3 knots towards W. Blowing snow. Shooting seismic reflection all day.

25/1-15

Position: 87° 08.3' N, 60° 00' W, temperature -38° C, air pressure 1029 hPa, wind 3 knots from ESE. Ice drift 0.1 knots towards the south during the first part of the day. Shooting seismic reflaction all day. Prepared the winch and Kevlar drum. Started remarking the 2.800 m Kevlar we have left. The wind increased dramatically in the evening and the ice drift increased to 0.6 knot.

24/1-15

Position: 87° 08.6' N, 60° 17' W, temperature - 37° C, air pressure 1028 hPa, wind 6 knots from the NW. Ice drift 0.1 knot to the southeast. The air gun went into the water after midnight and seismic shooting resumed at 0253 hours. However, the seismic data logger started intermittent self trigging during the day. The problem was cured with advice from Ole Meyer. Audun started the fuel cell. Error code 75 Call service, was the response. Submitted an inquiry to the factory by e-mail.

23/1-15

Position: 87° 13.4' N, 61° 38' W, temperature - 34° C, air pressure 1006 hPa, wind 10 knots from the NW. Ice drift 0.4 towards SE. The hydro hole had frozen up after not being used for 8 days. Had by now 0.5 m thick ice in the middle and the whole thickness along the sides. Mobilized the invented new hydraulic chain saw to make vertical cuts down-hole. This worked very well, but it still took most of the day to get the hole cleared.

22/1-15

Position: 87° 20.5' N, 63° 04' W, temperature - 29° C, air pressure 1000 hPa, wind 11 knots. Ice drift 0.1 knot to the SSW. Finished the compressor heat box and started warming up. Audun worked on the small 800 W generator to see if we could get power from it - the engine runs, but power is sometimes there, but most often not.

21/1-15

Position: 87° 21.3' N, 62° 59' W, temperature - 33° C, air pressure 1021 hPa, wind 9 knot from the E. Ice drift 0.1 knots due east. Checked the radiation -flux instrument; cleaned sensors. Fan had stopped due to flat battery. Put in replacement battery. Audun downloaded data for the last month (since 19 Dec. 2014) from the memory card. The weather station is fine. Moved one fire extinguisher to the tent where the multi-fuel stove is going.

20/1-15

Position: 87° 21.6' N, 63° 00' W, temperature - 37° C, air pressure 1020 hPa, wind 3 knots from the SW. Ice drift 0.0 knots. Continued work on the compressor box. Moved the hydraulic oil tank to be included in the compressor box. Re-routed some of the air hoses. Tested the stove, but it would not burn properly.

19/1-15

Position: 87° 21.8' N, 63° 03' W, temperature below - 40° C, air pressure 1012 hPa, wind 5 knots from the W. Ice drift 0.1 knots towards E. A very cold day. A Zarges box is used as cabinet for the diesel stove and was attached to the compressor box. We run the main engine for fifteen every to thirty minutes two hours to charge the batteries.

18/1-15

Position: 87° 22.0' N, 63° 23' W, temperature <- 40° C, air pressure 1012 hPa, wind 14 knots from WSW. Ice drift 0.1 knots towards the east. We put the air box in place and closed all openings between the work space and the hovercraft superstructure. Also connected the Zarges box with the stove. It is very cold today, so in between you often have to go inside and warm up.

17/1-15

Position: 87° 22.0' N, 63° 55' W, temperature - 29° C, air pressure 1012 hPa, wind 17 knots from the south. Ice drift 0.0 knot. We built a new tunnel of plywood to route intake of air to the lift fan from the top of the superstructure and not from the inside of our work space. Audun prepared an aluminum Zarges box to serve as the bay for the diesel stove and an attachment to the existing heat box for the compressor.

16/1-15

Position: 87° 22.1' N, 63° 51' W, temperature - 33° C, air pressure 1022 hPa, wind 12 knots from the east. Ice drift 0.1 towards NNW. We started the small 800 W generator and run it for three hours. Went down to the old camp area, dug out one drum of gasoline and pulled it to the new camp. Checked the radiation flux instruments and cleaned all sensors. Run the small generator again, but it is unable to handle the load from charging the hovercraft batteries. The generator engine runs, but power is lost.

15/1-15

Position: 87° 22.3' N, 63° 46' W, temperature - 24° C, air pressure 1021 hPa, wind 5 knots from the south. Ice drift 0.0 knot. Deployed the thermistor string about 70 meters from the hovercraft. Took down the old generator shack and started to make preparations for rebuilding the heat box for the compressor. Heating would now be by a diesel stove. Fresh tracks of a polar fox were spotted by Audun.

14/1-15

Position: 87° 22.5' N, 63° 47' W, temperature - 30° C, air pressure 1019 hPa, wind 1 knot from the SSW. Ice drift 0.0 knots. Acquiring seismic reflection data until 0815 hours as we were out of air from loss of heat on the compressor. Started work on the generator to see if there was any hope of repair. The engine has to be opened from the generator side and the generator axle is pressed on to the engine drive shaft so special tools would be needed. Further pursuit of repair was considered futile. Audun made a hole for deployment of the thermistor string.

13/1-15

Position: 87° 23.4' N, 63° 57' W, temperature - 32° C, air pressure 1009 hPa, wind 3 knots from the NE. Ice drift 0.1 knots due south. Acquiring seismic reflection data all day. At 2200 hours, the generator suddenly stopped. The cause was loss of compression. Adjustment screw on valve rocker arm broken and valve lifting rod unseated - metal parts came out when the oil was drained. We had two identical 4.5 kW diesel generators and now both are down with the same fatal fault. One generator had over 3.000 hours and the spare only 2 hours before break-down.

12/1-15

Position: 87° 22.8' N, 63° 52' W, temperature - 25° C, air pressure 999 hPa, wind 3 knots from the ESE. Ice drift 0.1 knots towards W. Shooting seismic reflection all day. Audun was occupied with restarting the data loggers for the thermistor string. Checked the radiation flux instruments. Data logger battery is 12.9V, large battery for ventilator is 14.3 V. Cleaned all sensors and also the weather station sensors. A lead, about 200 meter to the north of the camp has been present since we came to this site 1.5 months ago. The lead is now closing

11/1-15

Position: 87° 22.8' N, 63° 57' W, temperature - 18° C, air pressure 1001 hPa, wind 6 knots from the south. Ice drift 0.1 knots towards the northeast. The ice started moving again in the early morning. Started seismic line 2015-13.

10/1-15

Position: 87° 22.7' N, 63° 58' W, temperature - 21° C, air pressure 1021 hPa, wind 14 knots from the E. Ice drift 0.1 knots due south. The ice drift stopped completely during the day. To move 25 meter took more than 5 hours. Acquiring seismic data all day. Had to end seismic line 2014-12 before midnight and reboot the computer.

9/1-15

Position: 87° 23.7' N, 64° 03' W, temperature - 18° C, air pressure 1014 hPa, wind 17 knots from ENE. Ice drift 0.1 towards SSE. Put the air gun back in the water at 0200 hours, but the short section of air hose attached to the gun burst. The gun fired at half a meter depth in the hole and we were soaked and the whole room sprayed with ice water. Changed hose and continued seismic reflection measurements all day.

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