[CA] [CA11] Water level slider now available?

[Chuck - Raymarine - Moderator]

Scott,

The reference level (usually specified in feet above mean sea level (MSL)) for larger lakes is often included within the Navionics cartography data. Pressing the OK button while the cursor is over an open water area of the lake or holding your finger pressed to the screen over an open water area of the lake will cause the Chart pop-up menu to be displayed. The command sequence MORE OPTIONS->CHART INFO->DEPTH AREA may then display the reference level. Online reference sources are commonly available, particularly for larger lakes. Such reference sources will often list the current lake level as well as include lake level graphs showing the lake level relative to the reference level (sometimes referred to as full reservoir / pool).

Unfortunately, the reference level was not listed for Lake Powell when I executed the command specified above. In such cases, it would be recommended that the cartography manufacturer, in this case Navionics (508-291-6000), be contacted to determine the reference level for Lake Powell within their cartography.