9/3-15

Position: 86° 05.3' N, 44° 26' W, temperature - 25° C, air pressure 990 hPa, wind 14 knots from the W. Ice drift 0.2 knot to the E. Shooting seismic reflection all day. Checked radiation flux instruments - all sensors Ok even sun time detector. Also weather station OK. Audun determined by GPS true heading of the hovercraft to be 81 degrees. The thin crack near the thermistor string has widened to 20 cm. Put a tarp under the rear end of the hovercraft to seal off air leakage.