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Record #104162:
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MARC recordThree functions that model empirically unfrozen water content data and predict relative hydraulic conductivity / Patrick B. Black.
| Title: | Three functions that model empirically unfrozen water content data and predict relative hydraulic conductivity / Patrick B. Black. |
| Author(s): | Black, Patrick B. |
| Date: | 1990. |
| In: | CRREL Report. (1990.), Vol. 90-5 (1990) |
| Abstract: | Empirically determined data on changes in unfrozen water content occurring as result of changes in state of ice and water in soil are discussed with reference to changes in soil-water retention data for ice-free soil. Similarity between two types of data is developed. Brooks and Corey, van Genuchten, and Gardner equations are then shown to be applicable to describing unfrozen water content. These three functions are then used in model of Mualem and relative hydraulic conductivity of frozen soil is predicted. |
| Notes: | CRREL Report. Vol. 90-5 :ii, 1-7 (1990). |
| Keywords: | 551.345 -- Permafrost. Cryopedology. 536.421.1 -- Melting. 536.421.4 -- Freezing. 551.345.2 -- Permafrost, formation and decay. 556 -- Hydrology. 551.579.5 -- Soil moisture, percolation. E8 -- Glaciology: frost action and permafrost. |
| SPRI record no.: | 104162 |
LDR 01446naa#a2200000#a#4500 001 SPRI-104162 005 20230324225559.0 007 ta 008 230324s1990####xx#a##|##|###|0||#0|eng#d 035 ## ‡aSPRI-104162 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aBlack, Patrick B. 245 10 ‡aThree functions that model empirically unfrozen water content data and predict relative hydraulic conductivity /‡cPatrick B. Black. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1990. 300 ## ‡ap. ii, 1-7 :‡bdiags., table. 500 ## ‡aCRREL Report. Vol. 90-5 :ii, 1-7 (1990). 520 3# ‡aEmpirically determined data on changes in unfrozen water content occurring as result of changes in state of ice and water in soil are discussed with reference to changes in soil-water retention data for ice-free soil. Similarity between two types of data is developed. Brooks and Corey, van Genuchten, and Gardner equations are then shown to be applicable to describing unfrozen water content. These three functions are then used in model of Mualem and relative hydraulic conductivity of frozen soil is predicted. 650 07 ‡a551.345 -- Permafrost. Cryopedology.‡2udc 650 07 ‡a536.421.1 -- Melting.‡2udc 650 07 ‡a536.421.4 -- Freezing.‡2udc 650 07 ‡a551.345.2 -- Permafrost, formation and decay.‡2udc 650 07 ‡a556 -- Hydrology.‡2udc 650 07 ‡a551.579.5 -- Soil moisture, percolation.‡2udc 650 07 ‡aE8 -- Glaciology: frost action and permafrost.‡2local 773 0# ‡7nnas ‡tCRREL Report. ‡gVol. 90-5 (1990) ‡wSPRI-54834 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20230324