Garmin GDL 30A Gebruikershandleiding - Pagina 17

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Fronts

The Fronts feature displays the lines indicating the leading edge of an air mass that is replacing an existing air mass. This feature also displays

pressure centers. Pressure centers are represented by a large red "L" for low-pressure centers or a large blue "H" for high-pressure centers.

Pressure centers represent an area where pressure is measured to be either the highest or the lowest pressure relative to the surrounding area.

Indicates a low-pressure center. A low-pressure center

is an area where the measured pressure is lowest

relative to the surrounding area. Moving away from a

low-pressure center in any horizontal direction results

in increased pressure. Winds flow counterclockwise

around low-pressure centers in North America.

Indicates a high-pressure center. Similar to a low-

pressure center, a high-pressure center is an area

where the measured pressure is highest relative to the

surrounding area. Moving away from a high-pressure

center in any horizontal direction results in decreased

pressure. Winds flow clockwise around high-pressure

centers in North America.

GDL 30A Owner's Manual

Cold Front

Warm Front

Stationary

Front

Occluded

Front

Dry Line

XM WX Weather Features