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Polar Services - Remote Station Engineering - Instruments
TECHNICAL NOTES
Test Series: Power draw versus time for UNAVCO Polar GPS System (NetRS and Iridium)
SENSOR INSTRUMENTS CURRENTLY USED BY UNAVCO IN POLAR APPLICATIONS
GPS Receivers
| Photo |
Manufacturer / Model |
Description |
Status |
 |
Trimble NetRS |
Reference station receiver, 3 year internal memory at 30s sample rate (1GB),
Linux based, L2C tracking, robust internet communications. See above link for power draw
information.
Manufacturer specs [PDF]
|
Operational since 2004. Deployed in EarthScope PBO network. Also deployed at numerous polar locations, including:
-Two Mt. Erebus sites (CONZ and MACZ) using point-to-point radio comms.
-Antarctica and Greenland POLENET networks, using Iridium comms. Currently 30+ sites.
-UNAVCO/PASSCAL Remote Stations MRI project, using point-to-point and Iridium comms. Currently 10 sites. |
 |
Trimble R7 |
Rugged campaign receiver, 2 year internal memory at 30s sample rate (512MB). Similar to the 5700
but with the hardware upgrade to track the new L2C signal. Well suited for extended autonomous
data logging applications. Average power draw is ~2.5 W
Manufacturer specs [PDF] |
Operational since 2004. Robust shut-down and power-up characteristics at solar-powered sites, no
adverse temperature effects noted. Currently deployed at several Antarctic locations, including Cape
Roberts (ROB4), Mount Fleming (FLM5), Mt. Erebus, and the West Antarctic Ice Sheet. |
Weather stations
| Photo |
Manufacturer / Model |
Description |
Status |
 |
Vaisala WXT-510 |
Versatile weather station: Pressure, Temperature, Humidity, Precipitation, Wind Speed and Direction.
No moving parts, custom-configurable. Internal heater is disabled to save power, rime ice can
periodically obscure ultrasonic wind speed data.
Average power draw is <0.05W.
Manufacturer specs [PDF] |
Easily integrated with Trimble NetRS GPS receiver, met data stream injected into GPS data files. Deployed
at Summit Camp, Greenland, as well as Miller Range (IGGY), Mt. Erebus (MACZ), and McMurdo Station Antarctica.
Example met data
from Vaisala at remote GPS sites |
Last modified Thursday, 01-May-2008 21:27:13 UTC
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