Tone contour

When the pitch descends, the contour is called a falling tone; when it ascends, a rising tone; when it descends and then returns, a dipping or falling-rising tone; and when it ascends and then returns, it is called a peaking or rising-falling tone.

Tones which are too short to exhibit much of a contour, typically because of a final plosive consonant, may be called checked, abrupt, clipped, or stopped tones.

It has been theorized that the relative timing of a contour tone is not distinctive.

[1] Lexical tones more complex than dipping (falling–rising) or peaking (rising–falling) are quite rare, perhaps nonexistent, though prosody may produce such effects.

The report did not determine if the final fall was lexical or merely the declination typically seen at the ends of prosodic units, so these may actually be dipping tones.