Difference between revisions of "NGEE Teller Top Notes"

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* Lily 8/20/2017
 
* Lily 8/20/2017
 
* Bob 6/12/2018
 
* Bob 6/12/2018
 +
 +
===Instrumentation and Heights===
 +
* AT/RH @ 2.2m
 +
** Vaisala HMP155
 +
** https://www.campbellsci.com/hmp155a
 +
** -80 to +60 Celsius
 +
** ±(0.226 - 0.0028 x temperature)°C (-80° to +20°C)
 +
** 0 to 100 % Relative Humidity
 +
** ±(1.2 + 0.012 × reading) % RH (at -40° to -20°C); ±(1.0 + 0.008 × reading) % RH (at -20° to +40°C)
 +
* WS/WD @ 4.12m
 +
** RM Young 01503
 +
** https://www.campbellsci.com/05103-l
 +
** Range: 0 to 100 m/s
 +
** Accuracy: +-0.3m/s
 +
** Startup threshold: 1.0 m/s
 +
** Wind Direction measurement band: 0 to 355 degrees
 +
** Accuracy: +-3 degrees
 +
* Snow Depth @ Tripod
 +
** Campbell Scientific SR50A
 +
** https://www.campbellsci.com/sr50a
 +
** Resolution: 0.25mm
 +
** Accuracy: +-1.0 cm
 +
* Snow Depth @ Lump
 +
** Campbell Scientific SR50A
 +
** https://www.campbellsci.com/sr50a
 +
** Resolution: 0.25mm
 +
** Accuracy: +-1.0 cm 
 +
* Net Radiation @ 1.5m
 +
** Kipp & Zonen CNR4
 +
** https://www.campbellsci.com/cnr4
 +
** Shortwave Measurement Range-  305 to 2800 nm
 +
** Shortwave Uncertainty in total daily -  < 5% (The uncertainty values are for a 95% confidence level.) 
 +
** Longwave Measurement Range -  4500 to 42,000 nm
 +
** Longwave Uncertainty in total daily-  < 10% (The uncertainty values are for a 95% confidence level.)
 +
* Skin Temperature @ 1.9m:
 +
** Apogee Instruments SI-111
 +
** https://www.campbellsci.com/si-111
 +
** Operating Range: -55 to +80 C
 +
** Accuracy: ±0.2°C (-10° to +65°C) & ±0.5°C (-40° to +70°C)
 +
** Field of View:  22° half angle
 +
* Summer Precipitation
 +
* Soil Moisture
 +
* Snow Temperature
 +
* Soil Temperature
 +
* Soil thermal conductivity

Revision as of 08:46, 30 April 2021

NGEE

Latest

  • Met Data QA'd through last visit (9/2018)
  • Radiation Data QA'd through last visit (9/2018)
  • Partway through processing soil.

Met 2017

  • HMP155 August 2017
    • failure looks legit... not a data gap.
  • HMP155 Cuts out on 10/25 8:00
    • replaced AT portion with new AT thermistor.
    • DP & RH left NAN
  • HMP155 replaced on March 2018 visit
  • Rain corrected through most recent download.
  • Wind Speed / Direction
    • Propeller replaced 6/28/2017
    • No Rime fall 2017

Met 2018

  • Wind
    • all rime conditions corrected for through 3/2018 in QC spreadsheet.
  • Rain NAN through snowmelt
  • Radiometer leveled and desiccant replaced 6/12/2018
  • Radiometer leveled again 9/24/2018
  • Tipping bucket leveled 6/12/2018 & 9/24/2018
  • AT/RH corrected through 3/30/2018 20:00 after sensor destroyed over winter season.

Radiation 2017

  • There is a gap 10/2/2017 0:00 to 10/2/2017 22:00
    • I think this is when we removed the sensor from the field to change the desiccant.
      • as in, the screws were stripped and so we drilled and retapped back in town.

Radiation 2018

  • All good through March visit.
    • There is a weird thing in 2018 where the lower SW has values higher than the upper SW. I assume this is due to snow/ frost up top. Perhaps related to how close the snow surface is to the sensor this year resulting in a lower wind speed later in the winter.

Soil 2017

  • 2017 heat flux plates prior to fall were being measured on wrong channel.
  • 2017-03-12 02:00:00 Upper heat flux plate has a value that isn't ever flipped by the qc program.
  • 2017-03-12 02:00:00 Lower heat flux plate has a value that isn't ever flipped by the qc program.
  • Easy Perl one liners to accomplish this:
perl -pi -e 's/"2017-03-12 02:00:00",149.2/"2017-03-12 02:00:00",6999.00/g;' $TT_SOIL_DIR/outputs/SoilPit_HeatFlux_Lower.csv
perl -pi -e 's/"2017-03-12 02:00:00",140.8/"2017-03-12 02:00:00",6999.00/g;' $TT_SOIL_DIR/outputs/SoilPit_HeatFlux_Upper.csv
  • 2017 Soil pit soil moisture -- all corrected
  • 2017 Soil heat flux plates also all corrected
  • with Vlad determined only good VATP are 2/5/25/50/60/100
  • Soil Temperature: VATP
    • I think I have everything corrected though I don't entirely believe the 100cm probe.
  • 8/16/2017 from Lily's field book page 50:
    • VATP was heaved 9.5cm above standing water table. I pushed it back down

Soil 2018

  • 2018 soil pit soil moisture -- all corrected through most recent visit (3/2018)

Snow 2018

  • Snow temperature profile
    • Weird shift (looks like mux wonky 1/22 to 1/28/2018)

Site Downloads / visits:

  • Lily / Bob 6/28/2017
  • Lily 8/16/2017
  • Lily 8/20/2017
  • Bob 6/12/2018

Instrumentation and Heights

  • AT/RH @ 2.2m
    • Vaisala HMP155
    • https://www.campbellsci.com/hmp155a
    • -80 to +60 Celsius
    • ±(0.226 - 0.0028 x temperature)°C (-80° to +20°C)
    • 0 to 100 % Relative Humidity
    • ±(1.2 + 0.012 × reading) % RH (at -40° to -20°C); ±(1.0 + 0.008 × reading) % RH (at -20° to +40°C)
  • WS/WD @ 4.12m
    • RM Young 01503
    • https://www.campbellsci.com/05103-l
    • Range: 0 to 100 m/s
    • Accuracy: +-0.3m/s
    • Startup threshold: 1.0 m/s
    • Wind Direction measurement band: 0 to 355 degrees
    • Accuracy: +-3 degrees
  • Snow Depth @ Tripod
  • Snow Depth @ Lump
  • Net Radiation @ 1.5m
    • Kipp & Zonen CNR4
    • https://www.campbellsci.com/cnr4
    • Shortwave Measurement Range- 305 to 2800 nm
    • Shortwave Uncertainty in total daily - < 5% (The uncertainty values are for a 95% confidence level.)
    • Longwave Measurement Range - 4500 to 42,000 nm
    • Longwave Uncertainty in total daily- < 10% (The uncertainty values are for a 95% confidence level.)
  • Skin Temperature @ 1.9m:
    • Apogee Instruments SI-111
    • https://www.campbellsci.com/si-111
    • Operating Range: -55 to +80 C
    • Accuracy: ±0.2°C (-10° to +65°C) & ±0.5°C (-40° to +70°C)
    • Field of View: 22° half angle
  • Summer Precipitation
  • Soil Moisture
  • Snow Temperature
  • Soil Temperature
  • Soil thermal conductivity
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