NGEE May 2015 Barrow

Station Work:

• @ Site A: Replace Snow #1 (ID 7); the one connected to the tower
• @ Site A: Look at Heat Flux Pit #2... it is reading 0mV, may have broken in the ground)
• @ Site B: Look at Heat Flux Pit #1 & #2... both reading 0mV)
• At each site:
  • Level Radiometer (phillips screwdriver needed)
  • Replace Desiccant in radiometer (phillips screwdriver needed, anti-corrosion grease)
  • add Desiccant to instrument box
  • clear snow from precip gage & level (torpedo level, snow shovel, 5/16" nut driver needed)
• if time allows change out dreamplug

To Do Yet:

• load high res imagery onto GPS so we can hit our points in the field
• think about getter securing the camera (like straps?
• pack personal gear
• export ground control points

=To Bring on plane:

• Tools
• Trimble
• LiON batteries
• instrument box?
• large actionpacker

Supplies to Ship NAC:

• tower sections
• anchor sections
• screed stakes
• survey tripod
• survey rod
• gin pole
• radiation cross arm
• camera cross arm
• Sledge Hammer

Supplies to ship either NAC or AK Air

• Instrument Box
• Duct Seal for instrument box
• rope for gin pole
• instrument box for data logger (sounds like small is fine)
• camera cross arm
• IR camera cross arm
• soil moisture probes
• switch 12 volt deal for soil moisture probes
• lg actionpacker or two

Tools:

• 2 pcs 3/4 inch wrench (for unistrut bolts)
• level
• tape measure
• 1/2" wrench (for ubolts)
• 7/16* wrench (for ubolts)
• a full set of nut drivers
• electrical tape
• 8pcs wire nuts

Strobe Wiring:

• Red = +12V
• Black = G
• Green = G

Dialight Part number: RTO1R08001 S/N: 133408009

Base construction Parts:

• 4 pcs -- 1/4" dia x 2" wide x 3-1/2" long u-bolt for hinge P/N7122
• 2 pcs -- 2" dia x 20" long EMT conduit for hinge base --
• 2 pcs 1/2" x 4" bolt for securing gin pole
• 6 pcs 1/2" washer for securing gin pole
• 4 pcs 1/2" nut for securing gin pole
• 1 pcs 60" long x 1/2 depth unistrut - Hinge Base

Definition:

• Base pieces connect directly to tower
• Hinge Base pieces are part of the Hing assembly
• EMT is a type of electrical conduit that is thinner walled & not threaded (lack of threads & metal typically suggests EMT). It is sized on a tubing system.
• Electrical Conduit = typical english unit dimensions, (schedule 40 refers to wall thickness).
• 1/2 depth slotted Unistrut -- channel dimensions are about 1-5/8" x 3/4"
• full depth slotted Unistrut -- channel dimensions are about 1-5/8" x 1-5/8"

Loose Ends:

• Cut Guy wires (3/16")... 6 pcs x 40 ft
• something to keep the unistrut from popping off the screed stakes?
• need like a junction box to go between strobe and the electrical conduit w/ 3/4" on either end.
• couple caribiners for gin pole setup
• Need one more 1/4" dia x 2" wide x 3-1/2" long u-bolt for hinge P/N7122
• one more short cross arm was left in the office I think.
  • 1" hole saw for 3/4" liquid-tite connector

Shipping List:

• Loose Items:
  • Survey Tripod
  • Survey Rod
  • 3/4" x 5ft radiometer arm vertical support
  • 1-1/4" x 10 ft EMT conduit for net radiometer arm
  • Sledge Hammer
  • Hammer Drill Case

• Bundle 1:
  • 3pcs 40" full unistrut
  • 1 pcs 1" x 48" schedule 40 Aluminum IR Camera cross arm
• Bundle 2:
  • Hinge 72" half thick unistrut (zinc coated)
  • Inner Hinge 68" half thick unistrut (galvanized coated)
  • Anchor / Gin pole receptor 48" half thick unistrut (zinc coated)
  • 3/4" x 60" net radiometer cross arm vertical support (galvanized pipe)
• Bundle 3:
  • Net Radiometer cross arm
  • 120" full unistrut gin pole
  • 3/4" Electrical Conduit
• Bundle 4:
  • 2 red/white reflectors
  • 6 orange/white reflectors
  • 2 strips of reflective material
  • small camera cross arm
• Large Actionpacker #1
  • 50 ft 1/2" Flex Conduit for power from tram
  • 25 ft 3/4" liquid-tite conduit for strobe power
  • Extension cord for power from tram
  • 2pcs 2" EMT for anchor hinge
  • 3 pcs vertical stub assembly
  • 90* angle piece for anchor
  • Gin pole rope & caribiners
  • gin pole to base bolts
  • 3 lg cross arm brackets
  • 1 small cross arm bracket
  • Anti corrosion Grease
  • 6 pcs guy wire clamp packages (12 clamps total)
  • straight through 3/4" liquid-type connector
  • 90* 3/4" liquid-type connector
  • 3/4" flange plate for net radiometer vertical support
  • reflective tape
  • bolts for tower sections (5/16" x 1.5" and 2")

Rough Schdeule:

• fly up the 11th, arrive in the evening
• morning of the 12th, one person puts the base together at NARL
• grab some flex conduit for cable protection at base of tower (camera cable, radiometer cable)
• in barrow grab a piece of trail mat to put under the tower
• two people head out to BEO to site tower, identify tower location (using gps setup / tablet & power cable)
• shovel snow at tower base & guy wire anchors
• use gps to site tower and guy points (so as to miss frozen LCP etc)
• third person brings tower and anchor to cake eater pull off
• afternoon of the 12th / the 13th: tower is raised
• once we see how easy it is to lift we'll know how many people it takes to lift and drop
• once tower is up Lily can visit the stations as time allows
• change out snow sensor @ A
• desiccant change out for radiometers
• re-level radiometers
• check level of precip buckets
• look at those heat flux plates (see if a wire has come loose)

IR Tower Radiometer Program Wiring

'*** Wiring ***
' Connected Sensors:
'  + Kipp & Zonen CGR3 LW Radiometer configured w/ PRT Temperature 
'ANALOG INPUT
' 1H  -- long-wave pyranometer sensor signal (red wire)
' 1L  -- long-wave pyranometer sensor signal reference (blue wire)
' 2H  -- long-wave pyranometer PRT Hi (Yellow Wire) & Precision Resistor to Vx1
' 2L  -- long-wave pyranometer PRT Hi2 (Brown Wire)
'gnd long-wave pyranometer sensor signal sheild (black)
'gnd long-wave pyranometer sensor signal ground (green wire)
'VOLTAGE EXCITATION
'VX1 -- Precision Resistor to 2H
'####################

Tower Installation Plan

• Tuesday Morning: Bob & Sina visit BEO with
  • power cord for tower,
  • GPS system
  • tablet w/ aerial image loaded, shovel,
  • probably also could take a load of stuff out.
  • bring reflective markers out on first trip.
• use power cord to find max distance from tram power UPS.
• in the vicinity of this location, use the table & aerial imagery to site tower & guy wire anchors on LCP rims.
  • Guy wire anchor 1 should be placed to the North of tower
  • Guy wire anchor 2 should be placed to the south east of tower
  • Guy wire anchor 3 should be placed to the south west of tower
• there are 3 short guy wires, they should be installed on the tower @15 ft
• there are 2 medium guy wires, they should be installed on the tower @ 25ft on the SE & SW vertical members.
• there is 1 longer guy wire. It should be installed on the tower @ 25 ft on the north side vertical member.
• the guy wire anchors should be placed about 6.7m or 22ft from the base.
• for guy wire anchor siting, the anchors should form an equilateral triangle with each side between anchors 11.6m or 38 ft.
• Initially, the tower will be positioned such that the top of the tower is to the south of the base of the tower.
• Once Lily and the tower are ready, we'll bring them out and:
  • also bring out some extra metal conduit from the warm storage area... we will armor the IR camera cables & radiometer cable using this conduit.
  • clear the snow at the tower base area.
  • drill two starter holes for the hinge screed stakes (the shorter screed stakes)
  • place the lower section of the tower & secure in place with the screed stakes through the hinge base unistrut
  • place the guy wire anchors and pound in the screed stakes (three per anchor).
  • connect the upper two tower sections (I'm not actually sure, it could be we should connect the two upper sections before screed staking the base to the ground.
  • connect the guy wires at 15 feet and 25 feet to the tower.
    • loop one end of the guy wire around the tower and back over itself about 12 inches.
    • use a 5/16" nut driver to secure the wire rope clamps. One should be placed close to the vertical tower member.
  • lay out the guy wires on the ground, should be able to loosely connect the upper ones to the guy wire anchors.
  • loosely (leave plenty of slack in the lines) connect the 25ft height guy wires to the guy wire anchors... I'm not totally sure if there will be enough slack in the line to secure the northernmost one but it will be obvious on site.
  • once the guy wire anchors are secured to the guy wires and the hinge base is secured to the ground, raise the top off the ground by placing two actionpackers under the top.
  • mount the strobe:
    • the 3/4" electrical conduit will go through the top center part of the mast. Secured by two 3/8" bolts the strobe will go on top... apply anticorrosion grease to these bolts.
    • just above the conduit will be a wire entry point for the strobe. The strobe connects above that. Use teflon tape on these connections to keep the moisture out.
    • roughly cut to length the liquid-tite so that it goes from the bottom of the electrical conduit to the area where the instrument box will be installed.
    • run the power wire through the liquid-tite and then thread the fish tape through. Connect the power cable to the fish tape and then remove the fish tape from the liquid-tite, bringing the power line from the top of the tower to the bottom in the process.
    • mount the ir camera cross arm as well as the camera cross arm.
    • roughly point the IR camera
    • secure the cables from the IR camera and optical camera to the tower using a combination of hose clamps and cable ties. armor the lowest section of the cable to prevent animal damage.
    • secure the gin pole to the tower (it will only be in place for the lift)
    • secure the tower raising rope to the tower and run it through a carabiner connected to the top of the gin pole.
    • at this point the SE & SW upper guy wires should be secured loosely. If it reaches, the North upper guy wire should also be secured with plenty of slack.
    • for the lift, two people will lift the tower off the actionpackers and rotate it to vertical. One or two people (we will see how it goes...) will pull on the gin pole rope as the tower rotates from horizontal to vertical.
    • Do this.
    • once the tower is in the vertical position, the person operating the rope should quickly secure the north side upper guy wire. This person will need to have a 5/16" nut driver and wrench in an accessible pocket prior to the lift. Then, take the slack out of the SE & SW guy wires while the two people who lifted the tower stay in position at the base of the tower to keep it from tipping over.
    • Once the tower is vertical and secured, view the IR camera image. If it isn't quite good enough, disconnect the North guy wire from its anchor and carefully lower the tower back onto the two stacked actionpackers.
    • re-aim the camera and raise the tower again.
    • Once the camera is properly positioned and the tower has been lifted for the final time, secure the lower guy wires to the guy wire anchors.
    • Next, secure reflective markers to the guy wire to alert snow machiners of the new hazard. There is reflective tape to apply to the tower as well.
    • Mount the instrument box
    • mount the net radiometer cross arm
    • mount the net radiometer cross arm support foot.
    • Once all of this is complete:
      • connect the power to the box outlet* *(maybe this should be done earlier... while the box is still on the ground so that we can power up the camera etc etc)
      • bring the sensor cables into the box
      • cover the sensor cable hole with duct-seal / electrical putty to reduce inflow of moisture into the box.
      • power up the system
      • test radio communications
      • that should be close to everything I think.