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Title: UNSAT-HV2.0. Water and Heat Balance Model for Predicting Drainage Below the Plant Root Zone

Abstract

UNSAT-H Version 2.0 is a one-dimensional model that simulates the dynamic processes of infiltration, drainage, redistribution, surface evaporation, and the uptake of water from soil by plants. The model was developed for assessing the water dynamics of arid sites used or proposed for near-surface waste disposal. In particular, the model is used for simulating the water balance of cover systems over buried waste and for estimating the recharge rate (i.e., the drainage rate beneath the plant root zone when a sizable vadose zone is present). The mathematical base of the model are Richards` equation for water flow, Ficks` law for vapor diffusion, and Fouriers law for heat flow. The simulated profile can be homogeneous or layered. The boundary conditions can be controlled as either constant (potential or temperature) or flux conditions to reflect actual conditions at a given site.

Authors:
;  [1]
  1. Pacific Northwest Lab., Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest Lab., Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Civilian Radioactive Waste Management, Washington, DC (United States)
OSTI Identifier:
139459
Report Number(s):
ESTSC-000537D860000
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Technical Report
Resource Relation:
Other Information: DN: Each input file must have the file extension (filename).INP. this file is processed with DATAINH.EXE to produce a binary input file with the extension (filename).BIN. The main program, UNSATH.EXE, reads the file .BIN, operates, and then produces an output file with the file extension .RES. The DATAOUT.EXE program reads the file .RES and gives the user a choice of viewing the results on screen or generating text files that can easily be imported to any commercially available plotting package (e.g., Excel; 1-2-3).; PBD: 1 Nov 1989
Country of Publication:
United States
Language:
English
Subject:
99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; 54 ENVIRONMENTAL SCIENCES; U CODES; HEAT FLUX; FLUID FLOW; ROOT ABSORPTION; SOILS; LOW-LEVEL RADIOACTIVE WASTES; COMPUTER PROGRAM DOCUMENTATION; PLANTS; DRAINAGE; WASTE DISPOSAL; DIFFUSION; ROOTS

Citation Formats

Fayer, M, and Jones, T L. UNSAT-HV2.0. Water and Heat Balance Model for Predicting Drainage Below the Plant Root Zone. United States: N. p., 1989. Web.
Fayer, M, & Jones, T L. UNSAT-HV2.0. Water and Heat Balance Model for Predicting Drainage Below the Plant Root Zone. United States.
Fayer, M, and Jones, T L. Wed . "UNSAT-HV2.0. Water and Heat Balance Model for Predicting Drainage Below the Plant Root Zone". United States.
@article{osti_139459,
title = {UNSAT-HV2.0. Water and Heat Balance Model for Predicting Drainage Below the Plant Root Zone},
author = {Fayer, M and Jones, T L},
abstractNote = {UNSAT-H Version 2.0 is a one-dimensional model that simulates the dynamic processes of infiltration, drainage, redistribution, surface evaporation, and the uptake of water from soil by plants. The model was developed for assessing the water dynamics of arid sites used or proposed for near-surface waste disposal. In particular, the model is used for simulating the water balance of cover systems over buried waste and for estimating the recharge rate (i.e., the drainage rate beneath the plant root zone when a sizable vadose zone is present). The mathematical base of the model are Richards` equation for water flow, Ficks` law for vapor diffusion, and Fouriers law for heat flow. The simulated profile can be homogeneous or layered. The boundary conditions can be controlled as either constant (potential or temperature) or flux conditions to reflect actual conditions at a given site.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {11}
}

Technical Report:
Other availability
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