Garmin GPSMAP 541s - Marine GPS Receiver Manuale d'uso - Pagina 11

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Surface Winds

Surface wind vectors appear on the Sea Conditions chart using wind

barbs that indicate the direction from which the wind is blowing. A wind

barb is a circle with a tail. The line or flag attached to the tail of the wind

barb indicates the wind speed. A short line represents 5 knots, a long line

represents 10 knots, and triangle represents 50 knots.

Wind Barb Wind Speed Wind Direc-

tion

Calm

5 knots

10 knots

15 knots

20 knots

50 knots

65 knots

GPSMAP 400/500 Series Weather Supplement

Wave Height, Wave Period, and Wave Direction

Wave heights for an area appear as variations in color. Different colors

indicate different wave heights

➊

screen.

➋

➊

The wave period indicates the time (in seconds) between successive waves.

Wave period lines

indicate areas that have the same wave period.

➌

Wave directions appear on the chart using red arrows

each arrow pointer indicates the direction in which a wave is moving.

XM WX Satellite Weather and Cellular Weather

, as shown in the legend

on the left of the

➋

➌

➍

. The direction of

➍