Field Notes

<--2019-02-12 14:30:00 | 2019-02-28 12:25:00-->
Other sites visited today: Bouldin Alfalfa | Bouldin Corn | Mayberry
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East End: 2019-02-22 11:20:00 (DOY 53)
Author: Daphne Szutu
Others: Alex, Karen

Summary: Initial collection of litterbags, fixed 7700 wash pump controls, got truck stuck in a mudpit

2019-02-22
East End

Alex, Karen, and I arrived at 11:20. It was a beautiful, sunny, clear day with great visibility and a cold breeze. The water level was 42 cm. I put in a long, threaded bolt in the upper boardwalk to further secure the long-edge metal border; the old bolts had rusted and couldn’t be removed. Karen traced screen of the precipitation bucket so we can cut replacements for other sites.

Alex and Karen collected an initial batch of litter bags. Poles A-E were removed and bagged. The litter was black and pole A bags were covered by a good layer of decomposing litter. All the identification tags and markings were clearly visible (some bleaching of the orange tape).

I worked on fixing the 7700 wash reservoir pump. On the previous visit, I wasn’t able to manually control the mirror spin and the pump as expected, and we suspected a short somewhere. I inspected the wiring inside the reservoir enclosure and the wash power cable, but didn’t see anything wrong. I changed the 7700 from default to advanced cleaning, which seemed to resolve the issue of manually controlling the mirror spin and pump. I’m not sure what the default cleaning settings would be, but maybe something in those settings was confusing the manual controls.

I changed the 7500 and 7700 time from 12:44 to 12:35 to match the laptop time. I reset the box and confirmed that the USB was logging, the 7700 was connected, and the GHG columns look good. Alex replaced one of the sonic spikes that was missing.

LI7700 readings:
CH4 2.0ppm after cleaning
RSSI 82 after cleaning

We left at 12:50. On our way out, our 4x4 rental truck got stuck in the dirt road south of the old Twitchell Alfalfa field—a ditch on one side and a sheep fence on the other side. Some parts of the mud pit were 30+ cm deep. We were able to self-recover after 3min of pushing, rocking, and using a shovel to smooth down the mud around the tires. Next time, we should avoid this road and exit along the gravel road (go south from EE). Bryan also wants us to avoid the dirt road between the EE gravel road and EP.

1 photos found

Our rental 4x4 stuck in the mud, on the dirt road south of the old
20190222EE_TruckStuckMud.jpg ( 2019-02-22 13:01:25 ) Full size: 4032x3024
Our rental 4x4 stuck in the mud, on the dirt road south of the old

Graphs display:
11 sets found

14 EE_met graphs found

Explore the graph:Temperature and Batt V in a new window

Explore the graph:Soil Moisture and Well Pressure in a new window

Explore the graph:Solar Radiation in a new window

Explore the graph:PAR in a new window

Explore the graph:Soil Heat Flux in a new window

Explore the graph:Water Level and Rain in a new window

Explore the graph:Soil/Water Temperature Set 1 in a new window

Explore the graph:Soil/Water Temperature Set 2 in a new window

Explore the graph:Soil/Water Temperature Set 3 in a new window

Explore the graph:Dissolved Oxygen and Wind Speed in a new window

Explore the graph:SRS NDVI Channels in a new window

Explore the graph:Apogee NDVI in a new window

Explore the graph:NDVI in a new window

Explore the graph:Undercanopy PAR in a new window

Can't check EE_mixed
1 EE_mixed graphs found

Explore the graph:Air Pressure and RH in a new window

8 EE_flux graphs found

Explore the graph:Wind Speeds in a new window

Explore the graph:LI7500 CO2 and H2O in a new window

Explore the graph:LI7700 CH4 and RSSI in a new window

Explore the graph:Flux Counts in a new window

Explore the graph:Instument Temperatures in a new window

Explore the graph:Temp Tower 3 (Mixed Veg) in a new window

Explore the graph:Temp Tower 3 (Mixed Veg) in a new window

Explore the graph:Temp Tower 3 (Mixed Veg) in a new window

Can't check MBWPEESWGT_mixed
No data found for EE_cam.
Can't check MBEEWPSWEPGT_cam
Can't check SIMBTWEE_met
Can't check EE_Temp
5 EE_Temp graphs found

Explore the graph:Sonic SOS in a new window

Explore the graph:LI7500 CO2 in a new window

Explore the graph:Water Level in a new window

Explore the graph:LI-7700 CH4 in a new window

Explore the graph:Wind Speed in a new window

Can't check EE_minidot
1 EE_minidot graphs found

Explore the graph:EE miniDOT Dissolved Oxygen in a new window

Can't check MBSWEEWPBCBA
1 EE_processed graphs found

Explore the graph:CO2 Fluxes in a new window