Difference between revisions of "Dbm7"
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=site logs= | =site logs= | ||
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| + | == 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== | == 15 Jun 2008, emily & Ken== | ||
Revision as of 12:43, 17 September 2008
Contents
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
