The steps to take for trying the functionality of the Protide application are explained here. The first step is to log in. That will give you access to the 'Professional' tab. Under this tab you will find a menu from which you can address the functionality. An overview of the menu:
- available for all PROTIDE roles -
This module shows the used data to calculate tidal window advices. The data presents the forecast for water levels, current speed, current direction and wave heights (low frequency). The last figure shows the channel bottom layout with possible elevations. It is possible to view, and sometimes edit, the data for every channel position and date interval. - available for a ship master and port authority -
For submitting a new request for a tidal window advice. - available for all PROTIDE roles -
For watching the progress and status of submitted requests, calculations and advices. - available for a port authority and the provider -
For starting new calculations or to approve / decline already calculated tidal window advices. - available for all PROTIDE roles -
For viewing the details of a calculated advice. First a time-location diagram is given to show when its safe (blue) and when it is below the safety threshold (white). If the algorithm was able to find a tidal window advice it is given by a green path through the tidal window diagram. This path is also given in table below the diagram.
After the tidal window advice the water level and current forecast is given. Finally the last diagram shows the under keal clearance after squat reduction and (if applicable) the chance that the channel bottom is touched if the tidal window advice is followed.
- available for a port authority and the provider -
Information about the type of load that is being shipped. This can be used to estimate motion parameters in case detailed parameters are unavailable (not used in the model yet). - available for a port authority and the provider -
A channel can be described with channel positions and segments. A channel position can be a point where data forecasts are available or a point at the start or the end of a channel segment. For a channel position the channel and the kilometer position is the minimum information necessary. A channel segment is defined by a "from kilometer position" and a "to kilometer position" and gives extra information like the angle and the depth (guaranteed).
Finally the channel information also consists of the possible destinations for the incoming ships (berths). These are defined by the channel segment the berth connects to and the kilometer position along the channel to exactly define where the berth connects to the given channel segment.
- available for a port authority and the provider -
Calculation settings are the settings used to perform a tidal window calculation for a give tidal window request.
The settings start with the definition of all possible safety thresholds (cut off values) that can be applicable for certain circumstances. It is possible to use a relative or absolute UKC criterion where UKC can be defined with or without squat reduction. Also the bottom touch probability cut off can be set. The UKC cut offs are the minimal acceptable values and the bottom touch probability is the maximum acceptable value.
Next the calculation settings list contains the settings that can be selected from when a calculation is to be performed. These parameters define the precision of the calculation
Finally the cut off values are to be coupled to the calculation settings. It is possible to vary the cut off criteria along for different parts of the channel.
- available for all website users -
Documents (images and down loads) used on the PROTIDE website.