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The information contained in these documents is confidential, privileged and only for the information of the intended recipient and may
not be used, published or redistributed without the prior written consent of Wildlife Computers.
•
One-month deployment = 75-second sampling interval for depth and temperature time-series. 48
messages per day x 30 days = 1440 messages.
•
Three-month deployment = 300 second sampling interval for depth and temperature time-series.
12 messages per day x 90 days = 1080 messages.
•
Eight-month deployment = 600 second sampling interval for depth and temperature time-series. 6
messages per day x 240 days = 1440 messages.
Time-Series Sensor Resolution
Time-series sensor resolution will vary for each measurement. All time-series sensor readings have an
associated resolution which is reported in the decoded data. The resolution is dynamically adjusted to
compress the data for transmission.
Summary Messages
In order to maximize information throughput, the MiniPAT condenses sensor observations into
summarized messages.
Mixed-Layer Temperature
Mixed-layer temperature messages describe the amount of time the animal spends in the mixed layer, the
depth of the thermocline, and temperature of the mixed layer. When enabled, one message is created for
each summary period and includes:
•
Time in the mixed layer (percent)
•
Depth of mixed layer (max)
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Temperature of mixed layer (min, max, avg)
•
Temperature of the sea surface (min, max, avg)
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Overall depth (min, max)
•
Overall temperature (min)
Profile of Depth and Temperature
PDTs record the minimum and maximum temperatures observed at different depths.
•
Low-resolution profiles use eight different depths and fit into one message per summary period.
When all dives during a summary period are less than 400 m the tag will default to low-resolution
profiles.
•
High-resolution profiles use 16 different depths and generate two messages per summary period.
For summary periods when the tag ventures below 400 m the tag defaults to high-resolution
profiles.
Depth points are distributed between the minimum and maximum depths observed during each summary
period.
Histogram Messages
