Determine and Set Safety Parameters ll Shallow, Safety & Deep Contours ll ECDIS ll Passage Planning

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This video serves only as a guide or reference for determining and setting safety parameters. It shows a complete guide on how to determine shallow contours, safety contours, safety depth, and deep contours. It explains the difference between safety contour and safety depth. Always follow the company procedures on how to determine those safety parameters.
In Electronic Navigational Charts (ENCs), contours represent lines connecting points of equal depth or height in the water or on the sea floor. These contours provide a visual representation of the underwater terrain, helping mariners to understand the shape and characteristics of the seabed.
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[@marlovmiles]

Great content, thank you

[@nauticalacademy001]

Welcome.

[@Kwp1234]

thankyou

[@nauticalacademy001]

Welcome.

[@ghostzerowo2948]

How to calculate the capacity of spaces available for loading cargo? Can you make a video about jt? If so, it would be grateful. Thanks.

[@nauticalacademy001]

Yes I can. Thank you for the comment.

[@seaquesttv2826]

Is it possible to send me a copy of excel you used for the calculation?

[@nauticalacademy001]

yes.

[@sebuhihesenzade8268]

Good day.When we calculate safety depth which tide we minus MLW or MHW?

[@nauticalacademy001]

Typically, the safety contour is established by considering the lowest astronomical tide (LAT) or mean low water springs (MLWS).
Mean Low Water Springs (MLWS) represents the average lowest water level that occurs during spring tides over an extended period. Spring tides occur when the sun and moon are aligned, causing higher high tides and lower low tides. Using MLWS as a reference provides a conservative approach to ensure that the charted depths are sufficient for navigation under most tidal conditions.
So, in the context of determining the safety contour, you would subtract the anticipated tidal range from the charted depths based on MLWS or a similar reference level to ensure safe navigation during varying tidal conditions.

[@sebuhihesenzade8268]

​@@nauticalacademy001It means that when we find Safety depth/contour=Dynamic draft + Catzoc+UKC-HoT(MLWS) I'm I right?