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Mount Tamalpias Mobile Transect

Mount Tamalpias Mobile Transect. Chris Stumpf Brittani Ryan Denise Balukas. Mill Valley and Mount Tam. Mill Valley elevation is 10 meters ( 32 feet ) East Peak elevation is 781 meters ( 2570 feet ). The mobile transect route. GPS. Mapview.

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Mount Tamalpias Mobile Transect

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  1. Mount Tamalpias Mobile Transect Chris Stumpf Brittani Ryan Denise Balukas

  2. Mill Valley and Mount Tam Mill Valley elevation is 10 meters ( 32 feet ) East Peak elevation is 781 meters ( 2570 feet )

  3. The mobile transect route GPS Mapview

  4. Advantages of using a mobile transect to collect data: Ability to take direct measurements. Ability to collect data from many points along the route of transect in order to measure the temperature profile of the mountain valley system. Disadvantages of mobile profiling: Solar heating may influence measurements due to the time it takes to complete the transect. No direct route up the mountain, data collected from eastern and western sides of the mountain.

  5. Mobile Transect vehicle Simple design of the roof rack and PVC pipe to attach instruments to the vehicle. Anyone can make this at home!!!

  6. The Plan • Four transects • 7am, 10:30am, 3:30pm, 7pm • Collected data from datalogger at the top and bottom of the mountain after every trip • Checkpoints along transect

  7. Checkpoints use GPS time and height as a reference to data collected by the instruments.

  8. Instrumentation -CR1000 Datalogger -Thermistor/Hygristor (HMP45C) -Thermocouple -Barometric Pressure Sensor(CS106) -Trimble GPS

  9. Fan attached to to the back of the PVC pipe

  10. Datalogger insulated and placed in the trunk of the vehicle

  11. Temperature Profile Thermocouple Geopotential height (m) vs. Temperature (C) Red: 7:00AM, Pink: 7:00PM, Blue: 10:30AM, Green: 3:30PM

  12. Temperature Inversion http://minnesota.publicradio.org/collections

  13. Temperature variation with height(Up the mountain) HMP45C Geopotential height (m) vs. Temperature (C) Thermocouple

  14. Potential Temperature with height(Down the mountain) HMP45C Geopotential height (m) vs. Potential temperature (K) Thermocouple

  15. Potential Temperature with Pressure HMP45C Pressure (mb) vs. Potential temperature (K) Thermocouple

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