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Hydrology of frozen ground floodsResearch technical completion report, project A-016-IDA Item Info

A four year field and laboratory study of permeability of frozen soil is reported. The field studies involved soil temperature and moisture measurements over a two year period during which there were no runoff events when the ground was frozen. A rainfall simulator was constructed and used t o a limited extent the second year of the study. The laboratory study involved measuring the permeability of frozen soil columns at various initial moisture contents. Air was used as a fluid to measure the permeability under isothermal conditions below 32' F. Data were obtained which relate the air permeability to the porosity of the soil and the moisture content or saturation at which freezing occurred. For the three soil types tested, it was possible to obtain impermeable conditions after freezing when the initial moisture content was in the neighborhood of the field capacity. The significant parameter affecting the permeability was d (1 - S) where d is the porosity and S is the saturation. The use of certain critical values of this parameter would enable a person to predict when the possibility of frozen ground floods exist by taking soil samples in the field. The critical values for various soils would have to be determined from field permeability measurements.

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Title:
Hydrology of frozen ground floodsResearch technical completion report, project A-016-IDA
Authors:
Bloomsburg, G.L.; Swang, S.J.
Date Created (ISO Standard):
1969-06
Description:
A four year field and laboratory study of permeability of frozen soil is reported. The field studies involved soil temperature and moisture measurements over a two year period during which there were no runoff events when the ground was frozen. A rainfall simulator was constructed and used t o a limited extent the second year of the study. The laboratory study involved measuring the permeability of frozen soil columns at various initial moisture contents. Air was used as a fluid to measure the permeability under isothermal conditions below 32' F. Data were obtained which relate the air permeability to the porosity of the soil and the moisture content or saturation at which freezing occurred. For the three soil types tested, it was possible to obtain impermeable conditions after freezing when the initial moisture content was in the neighborhood of the field capacity. The significant parameter affecting the permeability was d (1 - S) where d is the porosity and S is the saturation. The use of certain critical values of this parameter would enable a person to predict when the possibility of frozen ground floods exist by taking soil samples in the field. The critical values for various soils would have to be determined from field permeability measurements.
Subjects:
frozen ground flood control flood forecasting permeability soil moisture
Location:
Boise Basin
Latitude:
42.63
Longitude:
-114.53
Collection:
Boise Basin
Series:
Water for Idaho
IWRRI number:
196903
Rights:
Rights to the digital resource are held by the University of Idaho. http://www.uidaho.edu/
Publisher:
University of Idaho
Contributing Institution:
University of Idaho
Type:
Text
Format:
application/pdf
Cataloger:
wbv
Date Digitized:
2012

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Source
Preferred Citation:
"Hydrology of frozen ground floodsResearch technical completion report, project A-016-IDA", Idaho Waters Digital Library, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iwdl/items/iwdl-196903.html
Rights
Rights:
Rights to the digital resource are held by the University of Idaho. http://www.uidaho.edu/
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