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

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

Sept. 28, 2011

R.Allen and W.Zhao, Univ. Idaho


Placement of thermocouples into the soil profile at the hollister epscor sagebrush flux site

#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


Placement of thermocouples into the soil profile at the hollister epscor sagebrush flux site

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


Placement of thermocouples into the soil profile at the hollister epscor sagebrush flux site

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


Placement of thermocouples into the soil profile at the hollister epscor sagebrush flux site

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.


Placement of thermocouples into the soil profile at the hollister epscor sagebrush flux site

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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