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Given that the intended route passed over a sandbank, with depths less than the ship's draught, the ECDIS check- IMO Performance standards for ECDIS defines an ENC as Safety depth and contour settings; they control how ecdis presents depth information making it *Safety depth = Vessel draft + Dynamic squat + UKC + Safety Margin - Tide height. 2. SAFETY CONTOUR - That is equal to or deeper than the Safety depth. It It explains how UKC should be calculated and effectively managed by the navigator.

It It explains how UKC should be calculated and effectively managed by the navigator. The guidance covers topics such as: ? Safety Depth ? Safety Contour ? Safety Depth & Safety Contour In ECDIS. a) Requirement-and-significance-of-bill -of-lading-clauses b) Difference Between towage This page is about ECDIS Safety Contour,contains Tell me more about the Isolated danger symbol…,ECDIS: Safety Contour Depth and Safety Depth-- 陆建建 6.

of ECDIS should be recognised and the ability of a watchkeeping officer to be competent and confident in the operation of ECDIS, including peripheral equipment and actual version(s) of software and charts, as part of the shipboard navigational system is essential for safety, security and protection of the marine environment. So as long as the ship remains in the white area, she is, in theory, safe! .

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Chart themes. Välj vad som skall ses en ECDIS utbildning baserad på IMO modell kurs 1.27 om minst 40 2.11 Determine how to select the safety contour and safety depth.

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This guide to ECDIS safety settings and UKC management outlines how safety settings can be understood by the ECDIS operator and how UKC should be calculated and effectively managed on board ships. It includes worked examples to illustrate best practice and topics covered include: Safety depth and safety contour OOW will set Safety Contour depth in ECDIS as 10 meters. When vessel reaches position “X”, ECDIS will provide an alarm to OOW and OOW will take required action. This is visible in above Figure. To indicate the area in which the depth of water is such that own ship may experience squat. Normally twice ship’s draft. The display of isolated dangers changes according to the safety contour Safety depth : Safety Contour : Deep Contour : Shallow Contour : To highlight the gradient of the seabed adjacent to the safety contour.

. In addition to the safety contour, this same depth of 8m can be set as the safety depth. In this case, if the navigator sets the ECDIS to display depths then all depths of less than 8m will show in bold type and those 3. deeper than 8 will be a pale grey. A number of settings related to the charted depth are applied on the ECDIS: the safety contour, the safety depth and the shallow and deep contours.
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For example if with 12.5 m draft and with all the requirements (Company minimum UKC and squat etc) you require water depth of 14.5 meters. You need to remove the height of tide from it. That means the safety depth to be entered in ECDIS becomes 10 meters. Basic understanding about safety depth settings. Basic understanding about safety depth settings. OOW would like to receive an alarm when vessel reaches 10 meters’ depth so that he is warned that beyond this limit, navigational safety is at risk.

This meant there were no alerts when the ship crossed safety depth contours. Webinar on: IHO S-52 Presentation Library 4.0, ECDIS as an anti-grounding device, Safety Contour and Safety Depth setup, information layers, utilities. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Basically, because there is only one distinctive contour on the chart, any Safety Contour setting below 18 2 m (even 1 m) will highlight this contour (18 2) and fill the area within it with blue color. In our case Safety Countour = Safety Depth = 10 m. 4. ECDIS data Explain all safety-relevant as well as all other major characteristics of ECDIS data, such as data contents, handle ECDIS data on board and assess all errors, inaccuracies and ambiguities caused by improper data management.
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Nella schermata dell’ECDIS questi livelli sono rappresentati con diversi colori in base al grado di pericolosità. In ordine dal meno al più pericoloso si ha bianco per il deep contour, grigio chiaro per il safety contour, azzurro per il safety depth e blu scuro per lo shallow contour 3.5 ECDIS Safety Functions 3.6 Safety Depth 3.7 Safety Contour 3.8 Shallow and Deep Contour 3.9 Anti Grounding Cone 3.10 SCAMIN 3.11 Presentation of Data 3.12 Selection of Sensors 3.13 Man Overboard 3.14 Alarms and Warnings 3.15 RCDS Mode 3.16 Use of ECDIS at Night 3.17 ECDIS Display Configuration 3.18 Handover Routine 3.19 GNSS Failure 3.20 When conducting route planning, ECDIS automatic route checking features, such as safety contour? Can cause excessive alarms when using ENC if set to a much greater depth than required According to IMO Performance Standards, ECDIS should provide an alarm with the input from which sensors is lost? The scale of the chart on ecdis was inappropriate for the passage, so safety-critical information was not displayed.

Institute/2.10) The greater the bit depth, the more colours will be available. Pictures are also defined available to ensure safety of navi- gation.
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Teknisk specifikation - Mercell

• Safety Depth: Value set by the mariner that is used by ECDIS to portray soundings as black if they are equal to or shoaler than the value and gray if they are deeper. A recent software update on the ECDIS has revealed a change in the way isolated dangers are indicated.

The ENC and all updates to it should be displayed without any degradation of their information content.