Pset_SpatialGeoObsFieldOutcrop Common properties for field outcrop observations. IfcSpatialZone/MAPPEDZONE IfcSpatialZone/MAPPEDZONE AzimuthExposure The azimuth of a slope orientation describes a horizontal line perpendicular to dip direction of the slope. The azimuth is given in degrees in the range 0 to 360 degrees counted clockwise from true north and expressed as a three-digit number, e.g. 240 or 015. >NOTE Definition according to ISO14689. SlopeAngle Inclination of a natural or excavated surface where the observations were made. Angle is measured relative to horizontal (90° is a vertical slope).