Bedienungsanleitung Garmin VOLVO PENTA GLASS COCKPIT GPSMAP 7600 (Seite 57 von 76) (Englisch)

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Viewing Forecast Information for Another Time Period

Select Charts > Forecast.

Select an option:

• To view the weather forecast for the next 48 hours, in 12-

hour increments, select multiple times.

• To view the weather forecast for the previous 48 hours, in

12-hour increments, select multiple times.

Weather Fronts and Pressure Centers

Weather fronts appear as lines that indicate the leading edge of

an air mass.

Front Symbol Description

Cold front

Warm front

Stationary front

Occluded front

Trough

Pressure-center symbols often appear near weather fronts.

Pressure-

Center

Symbol

Description

Indicates a low-pressure center, which is a region of

relatively lower pressure. Moving away from a low-

pressure center results in increased pressure. Winds

flow counterclockwise around low-pressure centers in

the northern hemisphere.

Indicates a high-pressure center, which is a region of

relatively higher pressure. Moving away from a high-

pressure center results in decreased pressure. Winds

flow clockwise around high-pressure centers in the

northern hemisphere.

City Forecasts

City forecasts appear as weather symbols. The forecast is

viewed in 12-hour increments.

Symbol Weather Symbol Weather

Partly cloudy Fair (sunny, hot, clear)

Cloudy Rain (drizzle, sleet, showers)

Windy Foggy

Thunderstorms Snow (snow showers, flurries,

blizzard, blowing snow, sleet,

freezing rain, freezing drizzle)

Smoke (dusty, hazy)

Viewing Fish Mapping Data

NOTE: This feature is not available on all products or

subscriptions.

The Fish Mapping weather chart shows information that can

help you locate fish species.

Select Charts > Fish Mapping.

If necessary, select Menu > Layers, and turn on and off

information.

Viewing Sea Conditions

The Sea Conditions feature shows information about surface

conditions, including winds, wave height, wave period, and wave

direction.

Select Charts > Sea Conditions.

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 Barb Wind Speed

Calm 20 knots

5 knots 50 knots

10 knots 65 knots

15 knots

Wave Height, Wave Period, and Wave Direction

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

colors indicate different wave heights, as shown in the legend.

The wave period indicates the time (in seconds) between

successive waves. Wave period lines indicate areas that have

the same wave period.

Wave directions appear on the chart using red arrows. The

direction of each arrow pointer indicates the direction in which a

wave is moving.

Viewing Forecast Sea Conditions Information for

Another Time Period

Select Charts > Sea Conditions.

Select an option:

• To view forecasted sea conditions for the next 36 hours, in

12-hour increments, select multiple times.

• To view the forecasted sea conditions for the previous 36

hours, in 12-hour increments, select multiple times.

Viewing Sea Temperature Information

The Sea Temperature weather chart shows the present water

temperature and present surface pressure conditions.

Select Charts > Sea Temperature.

Surface Pressure and Water Temperature Data

Surface-pressure information appears as pressure isobars and

pressure centers. Isobars connect points of equal pressure.

Pressure readings can help to determine weather and wind

conditions. High-pressure areas are generally associated with

fair weather. Low-pressure areas are generally associated with

clouds and the chance of precipitation. Isobars packed closely

together show a strong pressure gradient. Strong pressure

gradients are associated with areas of stronger winds.

Pressure units are shown in millibars (mb), inches of Mercury

(inHg), or hectopascals (hPa).

Colored shading indicates the surface temperature of the water,

as shown in the legend in the corner of the display.

Changing the Sea Surface Temperature Color Range

You can change the color range dynamically to view higher

resolution sea surface temperature readings.

Select Charts > Sea Temperature > Menu > Sea

Temperature.

Select an option:

• To allow the chartplotter to adjust the temperature range

automatically, select Auto Configure.

The chartplotter automatically finds the lower and upper

limits for the current screen, and updates the temperature-

color scale.

• To enter the lower and upper limits for the temperature

range, select Lower Limit or Upper Limit, and enter the

lower or upper limit.

Visibility Information

Visibility is the forecast maximum horizontal distance that can be

seen at the surface, as shown in the legend on the left of the

SiriusXM Weather 49

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