The total ascent and total descent values produced by an Altimeter Mode reading operation session during the example climb illustrated above are calculated as follows.
Total Ascent: "1"(300 m) + "3" (620 m) = 920 m Total Descent: "2" (320 m) + "4" (500 m) = 820 m- Cumulative ascent and cumulative descent values are updated whenever there is a difference of at least ±15 meters (±49 feet) from one reading to the next.
- ASC and DSC values are retained in memory without being reset even if you exit the Altimeter Mode. When you re-enter the Altimeter Mode, accumulation resumes from the value where it last stopped. See page E-74 for information about how to reset the ASC and DSC values to zero.
