POKR (AEC)

• Former user (Deleted) add station notes, access, contact, etc 22 Feb 2018 

Station Notes

• ADOPTED BY AEC

• None at this time

Service Plan

• None at this time

Site Access

• Road to Poker Flat Research Range

Site Contact

• Permit covered by AEC, contact Ian Dickson, ijdickson@alaska.edu for any site contacts/ access
  

• Ken Abnett  Poker Flat physical layer, cell 907-385-7363

• UAF Geophysical Institute IT manager  Paul Delys   907-474-7090 paul@gi.alaska.edu 

Site Visits

•  2020_02_11 Removal (Adopted by AEC-Not visted)

  USArray Station Removal Report 
  Form V1.5
  
  STATION CODE: TA.POKR
  
  STATION LOCALE DESCRIPTION: Poker Flat Research Range, AK, USA
  
  STATION REMOVAL LOG DATE: 20200211
  
  STATION/SENSOR DOWN TIME (UTC): N/A
  
  REMOVAL DESCRIPTION: Site was adopted by AEC and has not been removed.
  
  ACTIONS TAKEN: Site was not visited during the adoption process. 
  
  LAT/LONG OF SENSOR HOLE: N/A
  
  Top of Casing to hole bottom (indicate if sand present or evacuated): N/A
  
  Bottom of wellcap to grade level: N/A
  
  SENSOR ORIENTATION MEASUREMENTS: 
  Measured with Octans Unit: N/A
  Measured with rods on pin: N/A
  Casing/wellcap marked with reference orientation: N/A
  
  SENSOR ORIENTATION: N/A
  
  COMMENTS: Remote acquisition changeover from ANF to AEC.
  
  REMOVED: N/A
  
  DAMAGE: N/A
  
  LEFT AT SITE: N/A
  
  VISITORS: N/A
  
  NEXT VISIT:  N/A
  
  SITE STATUS:  N/A
  
  HOLE STATUS: N/A

•  2019_09_13 Service (R. Bierma, J. Soderquist, N. Murphy-AEC)

  STATION CODE:
  AK.POKR
  
  STATION Locale Description:
  Poker Flat, AK, USA
  
  STATION SERVICE LOG DATE:
  20190913
  
  STATION/SENSOR DOWN TIME (UTC):
  2300-2330 UTC
  
  SERVICE DESCRIPTION:

  Replace AC/DC convertor in Climate building

  baler media

  UPON ARRIVAL:
  Site was in deccent condition and was operating normally, aside from known power system issue. Possible animal damage to the makeshift wellcap box, it was askew from frost jacking, but the cover had a crack and some scrape marks on it.

  
  ACTIONS TAKEN:

  The AC/DC convertor in the climate trailer was swapped out. A standard Convert AC/DC convertor with resistor for 15V output was installed. DC voltage was measured 14.9V at the vault.

  Baler media was swapped

  Basic station check and documentation of equipment and cabling.

  Temporary patch job on wellcap to keep water out, more permanent fix will be needed.

  
  EQUIPMENT REMOVED:
  n/a
  
  EQUIPMENT INSTALLED:
  n/a
  
  COMMENTS:

  Both of the borehole casings were frost jacked up to 4" out of the ground:

  One has a Home Depot 12"x12" gray box modified to fit over an oversized (~8"? PVC casing), there is a rubber gasket that maybe originally fit, but we were unable to squeeze it over again. The frost jacking popped the LB/liquitite connector off of the box, and the box was pulled off the PVC casing. There is a chance that there was some animal damage to this one, a crack and several scrape marks were observed on the lid, but it seems more likely something like a moose stepping on it rather than a bear mauling it.

  The second is a piece of standard PVC casing sticking out of the ground 2' with a cap on top, no cable passthroughs were observed.

  
  

  Kevin Abnet accompanied us up to the station and opened the climate reasearch trailer for us. He was very interested to learn that ATA has infrasound sensors at every station, something Poker Flat might try to use to track supersonic shed boosters through the atmosphere.

  
  

  VISITOR:

  Ryan Bierma

  John Soderquist

  Nate Murphy (AEC)

  Kevin Abnet (Poker Flat)

  ON NEXT VISIT:

  Permanent fix needed on the wellcap box

  Swap in (2) new AGM batteries. The ones there have "2012" written on them, and they don't seem to hold much sharge anymore.

  
  CHANGES AFFECT INSTRUMENT RESPONSE:

  None

  
  

• 2013_08_19 Service (E. Clark)
• 2013_07_19 Service (E. Clark)
• 2013_06_14 Service (E. Clark, A. Sauter, R. Pierce)
• 2013_06_11 Service (E. Clark, R. Pierce)
• 2013_02_07 Service (R. Pierce, B. Coyle)
• 2012_10_02 Install (R. Busby, M. Couch, H. Peavy, A. Sauter, M. Kaufman-UAF)
• No Recon Report
  

Station Health

PDFs

ANF Station Page

MesoWest

65.11714, -147.4335, Elev: 1644ft