Isoline map

This isoline map displays areal distribution of annual precipitation in China. The isohyet expands in a broad northeast-southwest direction and divides the country into two sections. To the west lie China's main pastoral regions and some deserts. To the east are the main agricultural areas. Isoline maps have continuous lines joining points of the same value. Some examples would be equal altitude, temperature, barometric pressure, wind speed, wind direction, and wind shear.
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