Diurnal Variations in Summer Precipitation over the Yellow River Basin

Figure 7

Zonal average (33.5–42.5°N terrain elevation (units: m; left-hand y-axis) and the hourly precipitation rate (units: mm/hr; right-hand y-axis) along the YRB. The solid red line indicates the meridional distribution of the hourly precipitation rate, and the solid black line indicates the meridional distribution of the terrain height. Circle a denotes the transition region between the first and second stair steps of the YRB, and circle b denotes the transition region between the second and third stair steps of the YRB.