DATA (processed, as matlab files)

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NOTE: downloading binary files can vary between browsers (and even browser versions). Several things to try are:

1. Explorer
   • left-click (then save)
2. Netscape (or Mozilla):
• left-click (if you see the binary data on your screen, try "save as" using "source"
• shift and left-click (it should bring up a dialog to save the file)

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The Narrowband 150KHz ADCP has the highest resolution of these sonars (8 meters) and can reach up to 300m. The 38KHz ADCP is configured to alternate between 12m resolution (broadband) pings and 24m resolution (narrowband) pings, unless it is in bottom track mode. In that case, we use broadband mode only to accompany the BT pings). The broadband mode data (12m resolution) may reach to 900m in good weather; the narroband mode data (24m resolution) can reach to 1200m in good weather.

The acquisition software is robust; the near-real time processing software is under development. If it is working, the database for each firtual instrument (NB150, OS38bb, OS38nb) will be updated approximately every hour and matlab files will be copied to the following locations:

data description	matlab file (part 1)	matlab file (part 2)
OS38 broadband pings 15minute averages, 20m resolution	time and depth	velocity
OS narrowband pings 15minute averages, 25m resolution	time and depth	velocity
OS narrowband pings 1-hour averages, 100m vertical averages	time and depth	velocity
NB150 15minute averages, 10m resolution	time and depth	velocity
NB150 1-hour averages, 50m resolution	time and depth	velocity

This readme has a data description for these matlab files.

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