r1 - 08 Jun 2005 - 16:08:09 - SmitaGholkarYou are here: TWiki >  Sandbox Web  >  TWikiUsers > SmitaGholkar > SmitaGholkarSandbox > LandsatCollect
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-- SmitaGholkar - 08 Jun 2005

Update for 06/08/2005

  • A visit to Ontario Beach Park for collecting temperatures (data for the day) - Make sure your leg doesn't fall asleep!!!;-)
  • First step was acquaiting myself with the GPS systems - ETREX & GARMIN (of which ETREX died on us most unexpectedly!)
  • Points taken off the GPS give us the physical location on land in terms of Longitute and Latitude - exact Geographical location
  • A transducer (thermostat) hooked onto a make shift float of fat thermocol square was lowered till the surface of the water
  • the transducer readings are measured in volts on a DVM (the DVM is set to 20K for the readings because its the calibration specific for the transducers operation)
  • Data sheet consisted of 4 entries : GPS Waypoint (# indicated on the GPS eg.078); Time (indicated on the GPS when Waypoint is read in); Physical location (indicate the places along the lenght of the Pier where the readings were taken) and DVM reading
  • The voltages are then converted to temperatures in degrees Celsius and Fahrenheit using the conversion table available to get an initial estimate
  • Make a note of the weather conditions on the data sheet i.e presence or absence of cloud, wind, water sillness, haze over the city

MentalNotes

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