What are the Navionics chart symbols?
Objects added by boaters are marked with a “+”, while Navionics cartographic objects modified or deleted by users are labeled with “…” and “x” symbols, respectively.
What does G mean on a nautical chart?
HYDROGRAPHY
G Topographic Terms. HYDROGRAPHY. H Tides, Currents. I Depths. J Nature of the Seabed.
Where can you find the symbols and abbreviations used on the Admiralty charts?
The ADMIRALTY NP5011 gives details on symbols and abbreviations used on the worldwide range of ADMIRALTY charts, and international Chart Series Paper Charts. It also contains information on hydrography, topography and navigational aids and services.
What are the red squares on Navionics?
Those squares you see represent the area on the map that the chip contains high detail. Outside if those squares there is not much detail.
How do you read an admiralty chart?
Read the chart numbers to figure out the water’s lowest depth. The black numbers printed on the chart represent water depth. Each number indicates the “mean lower low water” (MLLW) in an area. This is the average water depth at low tide, so most of the time the water is deeper than what you see on a chart.
What does wk mean on map?
Ordnance Survey Abbreviations
| W | Walk, Way, Wharf |
|---|---|
| WK | Walk |
| Wks | Works |
| WLK | Walk |
| WM | Water Main? |
What symbols in the nautical chart for currents and tidal stream?
Tidal diamonds are symbols on the nautical chart that indicate the direction and speed of tidal streams, consisting of a capital letter inside a rhombus ♢, both in pink.
What are routeing charts?
Essential for use in passage planning for ocean voyages, Routeing Charts include routes and distances between major ports, ocean currents, ice limits, load lines and wind roses. They also contain expected meteorological and oceanographic conditions for each month of the year.
What are pink ducks on Navionics?
The pink/purple birds/ducks indicate different types of marine sanctuaries or estuary area zones/nature reserve areas. These can be environmentally sensitive sea areas or areas with minor restrictions and/or information notices.