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(IVAR) - Final Report - Strategic Environmental Research and ...

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Archived Data to a GIS<br />

We used the TDV application to illustrate extracting GIS data from archived data. The TDV can<br />

extract <strong>and</strong> display the following information from any set of plots <strong>and</strong> tracks files: date, track<br />

ID, scan time, number of updates, latitude, longitude, speed, heading, height, RCS, intensity,<br />

range, azimuth. [Section 6.1.1.2 provides a more detailed description of the information available<br />

from the plots <strong>and</strong> tracks data files using the TDV application.] Once a user selects an individual<br />

track, s/he can export the track data to the kml format <strong>and</strong> view them with 3- dimensional earth<br />

browser (e.g., Google Earth); Figure 6-76 is an example of such a display.<br />

Figure 6-76. An individual track exported to kml format <strong>and</strong> viewed in Google Earth.<br />

Track Histories to a GIS<br />

A third method to extract GIS data from real-time or archived target data is to use the TVW<br />

application to generate track histories. As described in PB5.2 (Section 6.2.2.5), a track history<br />

provides a spatial distribution of bird activity over any user-defined period of time. Histories can<br />

be saved in kml format for viewing in a 3-dimensional earth browser such as Google Earth, as<br />

illustrated in Figure 6-77:<br />

185

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