International Arctic Buoy Programme AB Dataset [2013-2016]: 12-hourly gridded surface air pressure

Optimally interpolated atmospheric surface pressure over the Arctic Ocean Basin. Temporal format - twice daily (0Z and 12Z) Spatial format - 2 degree latitude x 10 degree longitude - latitude: 70 N - 90 N- longitude: 0 E - 350 E. Note about derivative directions: The slp derivatives are expressed with respect to a cartesian coordinate system. With the origin at the North Pole, the x axis coincides with the Greenwich Meridian, and the y-axis with the 90E Meridian. The cartesion grid is a Polar Stereo projection of lat, lon onto an x,y grid in kilometers.