Placement of thermocouples into the soil profile at the hollister epscor sagebrush flux site
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Placement of Thermocouples into the Soil Profile at the Hollister EPSCoR Sagebrush Flux Site PowerPoint PPT Presentation


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Placement of Thermocouples into the Soil Profile at the Hollister EPSCoR Sagebrush Flux Site. Sept. 28, 2011 R.Allen and W.Zhao, Univ. Idaho. #1 - 0.02 m. #2 - 0.04 m. low density soil b.d.~ 1.2?. substantial grass roots to 0.10 m. #3 - 0.08 m. #4 - 0.12 m. #5 - 0.18 m.

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Placement of Thermocouples into the Soil Profile at the Hollister EPSCoR Sagebrush Flux Site

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Placement of Thermocouples into the Soil Profile at the Hollister EPSCoR Sagebrush Flux Site

Sept. 28, 2011

R.Allen and W.Zhao, Univ. Idaho


#1 - 0.02 m

#2 - 0.04 m

low density soil

b.d.~ 1.2?

substantial grass roots

to 0.10 m

#3 - 0.08 m

#4 - 0.12 m

#5 - 0.18 m

occaisional rocks

~ 60 mm diam.

throughout profile

mod. dense soil

b.d.~ 1.35?

#6 - 0.24 m

#7 - 0.32 m

very dense soil

b.d.~ 1.5?

#8 - 0.40 m

Rock

thermocouple tip inserted horizontally into undisturbed profile

Placement of Thermocouples into the Soil Profile at the Hollister EPSCoR Sagebrush Flux Site

Placement is ~ 0.2 m north and east of sensors at EC#1 site,

Soil subsite #2. Surface is bare, crusted, open, about 0.3 m to

the south and to the west of sage brush, with few grasses, but with

substantial grass roots in top 0.10 or 0.15 m of soil.

Constantin-Chromel TC’s, Type E,

~ 1 mm diameter, Soldered at ends

and potted in plastic suringe package-tips

using silicone sealer.

Excavated hole, refilled to near original density

using six layers in original order

Dr. Richard G. Allen and Dr. Wengang Zhao, Univ. Idaho, 9/28/2011

Graphic by Allen


Location of soil temperature

profile prior to installation.

Hollister Sagebrush site –

EC Location 1

Soil sensor subsite 2

Viewing from north to south

Location of soil temperature

profile prior to installation.

Hollister Sagebrush site –

EC Location 1

Soil sensor subsite 2

Viewing from east to west


Installation of soil temperature

profile -- Hollister Sagebrush site –

EC Location 1, soil sensor subsite 2

---top left---beginning hole

---top right---preserving top crust

---right---hole showing grass roots along sides


Installation of soil temperature

profile -- Hollister Sagebrush site –

EC Location 1, soil sensor subsite 2

---top left---hole after excavation

---top right---thermocouple inside suringe tip

---left---soil preservation during install.


Location of soil temperature

profile after installation.

Hollister Sagebrush site –

EC Location 1

Soil sensor subsite 2

---left---Viewing from west to east showing

brown TC wires (1-8) entering ground and relatively

undisturbed aftermath

---bottom---View from tripod


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