Difference between revisions of "Dbm7"

From IARC 207 Wiki
Jump to navigation Jump to search
imported>Ken
 
 
(3 intermediate revisions by 2 users not shown)
Line 2: Line 2:
  
 
{{todo}}
 
{{todo}}
 +
 +
* Site needs new SR50 (spring 2008)
 +
* measure distance from ground to SR50
  
 
=site logs=
 
=site logs=
  
== 14 June 2007, Ken I., Doug K.
+
== 9 Sept 2008, 3:22pm ADT Emily ==
 +
* SR50 sensor looks good
 +
* Sr50 distance to ground before trimming grass ranged from 117-122 cm, avg 120
 +
* Added bark chips and trimmed vegetation, new avg distance is 112 cm,
 +
* Changed SR50_ht in program from 120 cm to 112 cm
 +
*Net radiometer was reading 0.  Unwired and rewired but it didn't work
 +
* Changed out net radiometer, pulled wire out of 1/2" flex conduit and then buried new
 +
cable (not in conduit except at the sensor end and the tripod/instrument shelter end (~5 ft on each end)
 +
* New S/N 72731 radiometer.  Constant changed back at the lab from old 14.9 to new 12.9 uV/W/m2
 +
*  might want to try to rebury radiometer cable in conduit next trip.  Need 3/4 " conduit.
 +
* Flew over Shell Pingo and it look fine.  Fence intact.
 +
 
 +
 
 +
== 15 Jun 2008, emily & Ken==
 +
* replaced sr50 snow sensor, new s/n c4384
 +
* new sr50 distance to ground is 120 cm and changed it in program
 +
* installed new electric fence (removed from dfr1)
 +
* replace hmp45c head, new s/n c3210005 cal. Aug 2007
 +
* added conduit/shielding
 +
 
 +
== 14 Jun 2008, emily ken==
 +
* site visited, bear damage obvious
 +
* guy wires loose on radiometer/snow tower
 +
* hmp45c housing bent down
 +
* snow sensor avg dist to ground 113.5 cm
 +
* conduit needed, bear fence needed, shielding
 +
 
 +
 
 +
== 14 June 2007, Ken I., Doug K. ==
  
 
* brief stop at site; notes made in field book the next day
 
* brief stop at site; notes made in field book the next day

Latest revision as of 14:48, 23 September 2008

Lower Kadleroshilik River met

site TODO list

  • record as-built wiring of soil sensors
  • Flex conduit as needed
  • Site needs new SR50 (spring 2008)
  • measure distance from ground to SR50

site logs

9 Sept 2008, 3:22pm ADT Emily

  • SR50 sensor looks good
  • Sr50 distance to ground before trimming grass ranged from 117-122 cm, avg 120
  • Added bark chips and trimmed vegetation, new avg distance is 112 cm,
  • Changed SR50_ht in program from 120 cm to 112 cm
  • Net radiometer was reading 0. Unwired and rewired but it didn't work
  • Changed out net radiometer, pulled wire out of 1/2" flex conduit and then buried new

cable (not in conduit except at the sensor end and the tripod/instrument shelter end (~5 ft on each end)

  • New S/N 72731 radiometer. Constant changed back at the lab from old 14.9 to new 12.9 uV/W/m2
  • might want to try to rebury radiometer cable in conduit next trip. Need 3/4 " conduit.
  • Flew over Shell Pingo and it look fine. Fence intact.


15 Jun 2008, emily & Ken

  • replaced sr50 snow sensor, new s/n c4384
  • new sr50 distance to ground is 120 cm and changed it in program
  • installed new electric fence (removed from dfr1)
  • replace hmp45c head, new s/n c3210005 cal. Aug 2007
  • added conduit/shielding

14 Jun 2008, emily ken

  • site visited, bear damage obvious
  • guy wires loose on radiometer/snow tower
  • hmp45c housing bent down
  • snow sensor avg dist to ground 113.5 cm
  • conduit needed, bear fence needed, shielding


14 June 2007, Ken I., Doug K.

  • brief stop at site; notes made in field book the next day
  • tripod look OK on quick look
  • radiation pole leaning
    • one guy anchor (north) pulled
    • another guy turnbuckle was apart -- presumably unscrewed by wind/vibration
  • adjusted 3rd (cast alumninum) turnbuckle to show some threads -- was at end of bolt
  • drove 18-inch rebar at north anchor
    • reset turnbuckle on SW guy
  • rad pole firmly frozen/set in ground
    • pushed (bent) pole to near-plumb
  • radiometer mount failed with 2 lower ears bent, one cracked
    • reset mount to level radiometer
    • presume bear caused this damage
  • snow depth height: 119 cm
  • radiometer height: 119 cm