BOHAI OPERATIONAL HINDCAST AND FORECAST SERVICE SYSTEM

渤海海洋实时预报服务系统

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How to use this system?

BOSS will be the first of its kind to utilize Google Map and Java rendering technique to dynamically display model output. By doing so, it maximized the efficiency of presenting model output to the user right away while the model finished its simulation. In this system, user will be able to view various contour images, time series and vertical profile of any particular location on the map dynamically, simultaneously powered by Java technique.

Overview

The overview tab shows a brief description of the BOSS system, model domain coverage and the computational grid based on which all the hydrodynamic, water quality, oil spill and etc will be calculated.

Hindcast

The BOSS hindcast and forecast system initiate a three-day simulation every day, where one-day hindcast (-24 - 0h) and two-day forecast (0 -48h) results are presented. In this section, the hindcast output of the model is being dynamically displayed to user based on users' query. The output contains four parts: contour, vector, time series and vertical profile. The usage of this website is designed to be user-friendly and robust.

Instruction on viewing contour plots for non-vector variables

Select variables to be viewed from drop-down list 'Type', then choose the 'Date and Time' on when information will be displayed. The data will then be automatically drawed over Google Map. User can also use the '<' and '>' arrows for navigating previous and next hour output. The user can also view the animation of the variables selected for up to 24 hours by clicking the 'Animation' button after setting the starting date and time. Please note, by viewing animation will slow down displaying and varies greatly on computer speed and internet speed.

Instruction on how to do time series and vertical profile

To do a data query on any location is very simple: simply drop pins by clicking on the location that interests you from the map; then click on the pin, it will show two options: "Show details' and 'Delete'; Click on Show details (see Fig 4) and time series, vertical profile plots will show up (Fig 5). On the time-series plot, user will have another option of choosing how many days to view. In this case, 3-day, 5-day and 7-days options were given. Simply click the 'x' button to leave data query module.

Forecast

The BOSS hindcast and forecast system initiate a three-day simulation every day, where one-day hindcast (-24 - 0h) and two-day forecast (0 -48h) results are presented. In this section, the forecast output of the model is being dynamically displayed to user based on users' query. The output contains four parts: contour, vector, time series and vertical profile. The usage of this website is designed to be user-friendly and robust. The method of usage is the same as Hindcast, except the data are for forecast instead.