Estimating Depth to Argillic Soil Horizons Using Apparent Electrical Conductivity Response Functions

2009 ◽  
Author(s):  
Kenneth A. Sudduth ◽  
Newell R. Kitchen ◽  
D. Brenton Myers ◽  
Scott T. Drummond
Keyword(s):  
Electrical Conductivity ◽  
Response Functions ◽  
Soil Horizons ◽  
Apparent Electrical Conductivity

Determining ECa-depth profiles from electromagnetic induction measurements

Soil Research ◽  
1990 ◽  
Vol 28 (3) ◽  
pp. 443 ◽  
Author(s):  
PG Slavich
Keyword(s):  
Electrical Conductivity ◽  
Strongly Correlated ◽  
Response Functions ◽  
Linear Combinations ◽  
Model Calculations ◽  
Wide Range ◽  
Average Profile ◽  
The Mean ◽  
Apparent Electrical Conductivity ◽  
Depth Response

The response of the EM-38 instrument to a wide range of simulated apparent electrical conductivity (ECa) profiles of different shape and mean ECa was modelled using depth response functions derived for uniform ECa profiles. Relationships between the calculated EM-38 readings and average profile ECa for depths to 1 m were determined using linear regression. These relationships were used to predict ECa profiles measured in the field using a 4-electrode probe. The mean profile ECa of the simulated profiles was strongly correlated with simple linear combinations of the calculated vertical (EM,) and horizontal (EMh) dipole measurements. The model calculations indicated that the depth to which the EM-38 measures may vary from 1.65 to 5 m, depending on the ECa of these layers and the instrument range setting. Apparent electrical conductivity profiles measured with a 4-electrode probe were more closely predicted from EM-38 measurements using this approach than the established coefficient approach of D. L. Corwin and J. D. Rhoades. The results indicate that the depth response functions, derived for homogeneous profiles, also apply to heterogeneous profiles.

Mapping Depth to Argillic Soil Horizons Using Apparent Electrical Conductivity

2010 ◽  
Vol 15 (3) ◽  
pp. 135-146 ◽  
Author(s):  
K. A. Sudduth ◽  
N. R. Kitchen ◽  
D. B. Myers ◽  
S. T. Drummond
Keyword(s):  
Electrical Conductivity ◽  
Soil Horizons ◽  
Apparent Electrical Conductivity ◽  
Mapping Depth

Apparent Electrical Conductivity, Soil Properties and Spatial Covariance in the U.S. Southern High Plains

2005 ◽  
Vol 6 (3) ◽  
pp. 297-311 ◽  
Author(s):  
K. F. Bronson ◽  
J. D. Booker ◽  
S. J. Officer ◽  
R. J. Lascano ◽  
S. J. Maas ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Soil Properties ◽  
High Plains ◽  
Spatial Covariance ◽  
Southern High Plains ◽  
Apparent Electrical Conductivity ◽  
The U.S

Relating apparent electrical conductivity to soil properties across the north-central USA

2005 ◽  
Vol 46 (1-3) ◽  
pp. 263-283 ◽  
Author(s):  
K.A. Sudduth ◽  
N.R. Kitchen ◽  
W.J. Wiebold ◽  
W.D. Batchelor ◽  
G.A. Bollero ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Soil Properties ◽  
North Central ◽  
The North ◽  
Apparent Electrical Conductivity ◽  
Central Usa
Sign in / Sign up

Export Citation Format

Share Document