Difference between revisions of "Super Site Instrumentation Calendar"

From IARC 207 Wiki
Jump to navigation Jump to search
 
(7 intermediate revisions by the same user not shown)
Line 1: Line 1:
 +
==Annual Fees to UAF Departments==
 +
* April (once accounts are setup)
 +
** PFRR Maintenance fee. 
 +
* early August
 +
** UAF Research Computing Services
 +
*** $242 -- submit PR and RCS reaches out for payment at the end of the month.
 +
 +
==Other Maintenance==
 +
===Early March===
 +
* Snow removal on shed roof
 +
===May / June===
 +
* Look over anchors for signs of decay.  Tighten guy wires if needed
 +
 +
===September===
 +
* Look over anchors again.  Adjust guy wires if needed (keep in mind they will tighten in winter as the metal contracts)
 +
 
==Eddy Covariance==
 
==Eddy Covariance==
 
===Fall===
 
===Fall===
Line 14: Line 30:
 
===Swap Procedure===
 
===Swap Procedure===
 
* Follow this link: [[Super Site HMP155 Sensor Swap]]
 
* Follow this link: [[Super Site HMP155 Sensor Swap]]
 +
** Another Guide: [[HMP155 Sensor Replacement]]
  
 
==Tower Wind Speed==
 
==Tower Wind Speed==
Line 29: Line 46:
 
* Sent out for recalibration every 2-3 years
 
* Sent out for recalibration every 2-3 years
 
* Check for level at the start of spring and in the fall
 
* Check for level at the start of spring and in the fall
 +
* Replace desiccant annually except for years when instrument is sent for recalibration.
 +
* desiccant can either be refreshed using crockpot or purchased from Campbell Scientific.
 
===Swap Procedure===
 
===Swap Procedure===
 
* [[Super Site CNR4 Recalibration procedure]]
 
* [[Super Site CNR4 Recalibration procedure]]
 +
===Desiccant Change Procedure===
 +
* [[Super Site CNR4 desiccant refresh procedure]]
  
 
==Snow Depth Sensor==
 
==Snow Depth Sensor==
Line 39: Line 60:
 
** one mounted to tower
 
** one mounted to tower
 
** one mounted at the forest floor radiation stand
 
** one mounted at the forest floor radiation stand
 +
* [[Snow Transducer Replacement | Snow Trandsucer Replacement Procedure]]
  
 
==Tipping bucket rain gage==
 
==Tipping bucket rain gage==
Line 46: Line 68:
 
* Check for level every month of summer using a Geonor branded torpedo level
 
* Check for level every month of summer using a Geonor branded torpedo level
 
* In fall (around October 1st ideally) drain the bucket of prior year of precipitation and refill with proper mixture of alcohol and antifreeze  
 
* In fall (around October 1st ideally) drain the bucket of prior year of precipitation and refill with proper mixture of alcohol and antifreeze  
−
** I will add the amounts later but they are also on labeled equipment in the basement storage room 106.
+
** 6.6 Liters Antifreeze (full strength not premixed with water)
 +
** 4.0 Liters full strength alcohol
 +
** 1 or 2 bottles of mineral oil / baby oil.  Baby Oil is scented mineral oil.  Find Mineral oil in the incontinence section of Fred Meyer / grocery store.  Find Baby Oil in the baby section.
 +
** This info is also written on the bucket itself out at the super-site.
 +
* In October 2021 Total liquids removed: 5.3 gallons (antifreeze / alcohol/ liquid precip)
 +
* In September 2022 Total liquids removed: 5.7 gallons (I think, from memory a couple weeks later).
 +
===Geonor Leveling Procedure===
 +
* [[Geonor Leveling]]
 +
===Geonor Fluids Replacement Procedure (Fall)===
 +
* [[Geonor Fluids Replacement]]
  
 
==Skin Temperature sensor==
 
==Skin Temperature sensor==
 
* Replace as they break (they seem to die occasionally).  Can compare their signal to the upwelling longwave radiation data converted to temperature.
 
* Replace as they break (they seem to die occasionally).  Can compare their signal to the upwelling longwave radiation data converted to temperature.

Latest revision as of 09:10, 24 October 2022

Annual Fees to UAF Departments

  • April (once accounts are setup)
    • PFRR Maintenance fee.
  • early August
    • UAF Research Computing Services
      • $242 -- submit PR and RCS reaches out for payment at the end of the month.

Other Maintenance

Early March

  • Snow removal on shed roof

May / June

  • Look over anchors for signs of decay. Tighten guy wires if needed

September

  • Look over anchors again. Adjust guy wires if needed (keep in mind they will tighten in winter as the metal contracts)

Eddy Covariance

Fall

  • Swap out Licor 7200RS and ship to Nebraska for recalibration.
    • We have three units. I trade out the top one so the tower is always running and the subcanopy is off for part of the winter.

Winter / Spring / before leaf up

  • The recalibration takes 4-8 weeks with shipping and purchase requests etc. So by the time the units are returned it is December. Aside from brief good weather windows it's pretty cold. So some year's we have been able to reinstall the sub canopy in December and other years it stretches into April/May due to travel schedule and climate of winter. The goal is to have both units operational by snowmelt in late April/ mid May.

Swap Procedure

Air Temperature / Relative Humidity

  • All sensors are sent away for recalibration once every two years. On a 4 & 4 schedule ideally.
    • But also, as sensors fail they are replaced and then the schedule is off. The 4x4 schedule is mostly for budget purposes rather than scientific reasons.
  • Record keeping on AT/RH is probably the weakest.

Swap Procedure

Tower Wind Speed

  • All sensors are sent away for recalibration once every two years. On a 5 & 4 schedule ideally.

Swap Procedure

Gill Windmaster Pro

  • Sent out occasionally

PAR

  • Every 8 years or so instruments replaced but new ones are colocated with old ones for a year or two.

CNR4 Net Radiation

  • Sent out for recalibration every 2-3 years
  • Check for level at the start of spring and in the fall
  • Replace desiccant annually except for years when instrument is sent for recalibration.
  • desiccant can either be refreshed using crockpot or purchased from Campbell Scientific.

Swap Procedure

Desiccant Change Procedure

Snow Depth Sensor

  • Campbell Scientific SR50A ultrasonic distance sensor
  • Transducers replaced every 1-2 years
    • one by shed
    • one behind shed at second soil pit
    • one mounted to tower
    • one mounted at the forest floor radiation stand
  • Snow Trandsucer Replacement Procedure

Tipping bucket rain gage

  • Checked for level in spring and again in summer.

Geonor Rain Gauge

  • Check for level every month of summer using a Geonor branded torpedo level
  • In fall (around October 1st ideally) drain the bucket of prior year of precipitation and refill with proper mixture of alcohol and antifreeze
    • 6.6 Liters Antifreeze (full strength not premixed with water)
    • 4.0 Liters full strength alcohol
    • 1 or 2 bottles of mineral oil / baby oil. Baby Oil is scented mineral oil. Find Mineral oil in the incontinence section of Fred Meyer / grocery store. Find Baby Oil in the baby section.
    • This info is also written on the bucket itself out at the super-site.
  • In October 2021 Total liquids removed: 5.3 gallons (antifreeze / alcohol/ liquid precip)
  • In September 2022 Total liquids removed: 5.7 gallons (I think, from memory a couple weeks later).

Geonor Leveling Procedure

Geonor Fluids Replacement Procedure (Fall)

Skin Temperature sensor

  • Replace as they break (they seem to die occasionally). Can compare their signal to the upwelling longwave radiation data converted to temperature.
Retrieved from "http://ocotal.iarc.uaf.edu/index.php?title=Super_Site_Instrumentation_Calendar&oldid=4331"