DETERMINATION OF PERMANENT AND CONTOUR LINES OF PRECIPITATION INTENSITY

ERMITTLUNG VON DAUER- UND HOEHENLINIEN DER NIEDERSCHLAGSINTENSITAET

KNOWLEDGE OF PRECIPITATION IN A CLIMATIC REGION IS REQUIRED FOR THE DESIGN OF ROAD DRAINAGE AND FOR STUDIES OF AQUAPLANING. IN PARTICULAR DATA ON THE RELATION BETWEEN THE DURATION OF PRECIPITATION AND THE INTENSITY OF PRECIPITATION ARE REQUIRED. THESE CAN BE OBTAINED FOR THE FROST-FREE TIME OF THE YEAR FROM LONG TERM PRECIPITATION MEASUREMENTS. PRECIPITATION CAN THEN BE ESTIMATED SUFFICIENTLY ACCURATELY FOR THE WHOLE YEAR, TAKING ACCOUNT OF THE AVERAGE HIGH PEAK OF PRECIPITATION AND THE AVERAGE ANNUAL PRECIPITATION DURATION.