Difference between revisions of "NGEE Barrow 2013 Site Install Trip"

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Line 19: Line 19:
  
 
===To Purchase===
 
===To Purchase===
* Anti-Corrosion Goo
+
* XX Anti-Corrosion Goo
* Ziplocs
+
* XX Ziplocs
 
* In Barrow:
 
* In Barrow:
** Butane
+
** XX Butane -> Going to put someplace (naturally)
** Battery Cleaner
+
** Battery Cleaner (haven't seen it)
** Food
+
** XX Food
  
 
===Pre-trip to do===
 
===Pre-trip to do===

Latest revision as of 22:00, 8 May 2013

May 2013 Trip

Purpose:

  • Rewire Grid Site station with CR1000 & new multiplexers
    • XX PakBus ID = 404
  • XX Setup MD485s to get Grid online
  • XX reconfigure Site C CR1000 for act as a pakbus router
    • Change IsRouter to YES -> Available in advanced settings
    • Change beacon interval on SDC7 to 60
  • Snow Surveys
  • Any other prep that's possible for the June trip
  • Bring back shotgun
  • slather anticorrosion goo on all 12V/G points?
  • Record Thermal Conductivity Heater Resistance using a high-accuracy ohmmeter
  • Swap out SR50A
  • ARM visit if time

Shipping

  • None

To Purchase

  • XX Anti-Corrosion Goo
  • XX Ziplocs
  • In Barrow:
    • XX Butane -> Going to put someplace (naturally)
    • Battery Cleaner (haven't seen it)
    • XX Food

Pre-trip to do

  • done.

Stuff to bring

  • XX Adirondack Tube
  • XX Scale
  • XX Thaw Probe
  • XX Ziplocs
  • XX GPS
  • XX 4 Precision Resistors for new logger
  • XX High Precision Voltmeter
  • XX Duct Seal
  • XX 80' of cable

Technical Gear

  • Shotgun -- in Barrow already
  • Keypads
  • XX fish tape
  • XX Tool Bags
  • XX Computer & (packed) SC32B
  • XX Serial Cables & spares

Food to bring out

  • Optional

Probable Luggage

  1. Bob Personal Actionpacker [Bob #1]
  2. Work Actionpacker #1 [Bob #2]
  3. daypack for working

Rough on-site todo

  1. Copy wiring of Grid Site
  2. Transfer wires to new multiplexer & Logger
  3. Snowsurveys
  4. Measure Heater Resistances for all thermal conductivity probes
  5. Look to see if the C site pit 2 thermal conductivity sensors could be connected to a lower instrument enclosure.
  6. configure C as pakbus router for grid
    1. http://www.campbellsci.com/forum/messages.cfm?threadid=6E4ABAA0-81A1-4158-B850230D8A56A2EF
  7. armor and run rs485 line between C and grid

Probable Schedule

  • Tuesday
    • Safety Briefing
    • Get Trucks & Snowmachines
    • Eat Lunch
    • Visit Hut & Prepare for first field trip
    • Visit Site
      • Download Data
      • Start Rewiring
      • Start measuring precision resistors
      • Odds and ends
      • Run MD485 Cable to site C
      • Barrow Shopping Items
  • Wednesday
    • 7am Up
    • 7:30 Breakfast & Make lunch
    • Visit Site
      • Snow Surveys @ ABCD
        • @ 2-4 Random Points within limits outlined below (start with 2 per site and see how long each takes)
      • continue station rewiring
      • Verify operation of MD485 Network
  • Thursday
    • 7am Up
    • 7:30 Breakfast & Make lunch
    • Visit Site
      • Finish Snow Surveys
      • Finish Wiring
      • Meet with Thomas
    • Pack up
    • Return to Fairbanks

Re: Snow Surveys

Larry,
Attached are the grid corner coordinates (DGPS) of the end-of-winter snow surveys I did in 2012 and that I repeated last week (all but site A). I used the MagnaProbe and have thousands of measurements from each grid. The measurements are aligned in ~S-N transects, which are located 4 m apart with a measurement every ~ft. These measurements overlap geophysics transects (John, Craig, Susan's).
Last year's average snow depth was about 51 cm, this year I think it was 39 at site B and C (site D 50 and 37 cm, respectively). I also took density measurements at each site.
I do not think it is realistic to ask anyone to repeat this snowdepth survey every day during the melt. In fact, it would be impossible time wise. Instead, perhaps do a daily survey (of a portion of) the outer lines of the grid, ie its western and southern perimeters, for example?? I think it would be good to follow the "L" protocol of Rovansek. I also think we need a measurement every <0.5m in order to capture the spatial mosaic of snow accumulation in these landscapes.
I think it is critical to perform the ablation survey, including snow density, about the same time every day for each site (i.e. site A at 10am, Site B at 11am etc).

Name	Grid Easting (m)	Grid Northing (m)
SP_A1	585527.004	7910503.004
SP_A2	585557.58	7910439.828
SP_A3	585627.052	7910474.226
SP_A4	585596.7	7910537.177
SP_B1	585802.228	7910297.959
SP_B2	585814.765	7910271.935
SP_B3	585843.449	7910286.087
SP_B4	585830.912	7910312.016
SP_C1	585903.79	7910340.005
SP_C2	585922.756	7910300.494
SP_C3	585966.613	7910322.093
SP_C4	585947.384	7910361.341
SP_D1	585931.474	7910571.739
SP_D2	585950.487	7910533.064
SP_D3	585994.132	7910554.454
SP_D4	585974.902	7910593.777