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How to Interpret the RVR Data

View RVR Data       View RVR Monitor

You will be able to view the RVR data in two forms. First, a table shows all of the current RVR data for a single airport; Figure 1 shows a sample table. Second, a graph shows RVR data for the last hour for a single runway; Figure 3 shows a sample graph. Since it is important that you properly interpret this data, this instructions page explains how each item in the table or on the graph is to be interpreted.

Initally, each cell of the RVR page contains a menu that allows you to specify what will be shown in that cell. Each cell can contain either a table showing the current data for one airport or the graphs for any number of runways for a single airport. To view a table or graph, from the menu you should first select the desired airport, then click the Table or Graph button.

Figure 1: Sample Table of RVR Data for an Airport

Suppose you have chosen to display a table of RVR data for an airport as shown in Figure 1. The following information appears at the top of the cell.

The table displays the following information.

If data is not currently being received for an airport, then the message, "Data Not Available" will be displayed, as shown in Figure 2.

Figure 2: Sample Display When Current Data is Not Available from an Airport

If you elect to show a graph of historical RVR values for a runway, you will see a display much like what is shown in Figure 3. A graph is updated once every five minutes.

Figure 3: Sample Graph of RVR Data for a Runway

At the top of the cell is the airport ID and the Back to Menu link as in Figure 1. Inside the graph is the following.

Figure 4: Graph Key

View RVR Data