Analysis of Interaction between Surface and Subsurface Flows Using Conjunctive 2-D Surface-3-D Subsurface Flow Model

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a conjunctive 2-D surface and 3-D subsurface flow model, which deals with the interaction between surface and subsurface flows. The model uses the non-inertia approximation of the Saint-Venant equations for two-dimensional unsteady surface flow and a modified version of the Richards equation for three-dimensional unsteady unsaturated and saturated subsurface flows. The equations are written in the form of 2-D and 3-D heat diffusion equations respectively. In the model the surface and subsurface flow components are coupled interactively using the common boundary condition of infiltration through the ground surface. Overland flow is generally classified into Hortonian and saturation overland flows in watershed hydrology. The conjunctive model was, after verification with experimental data, applied to a hypothetical watershed to simulate examples of 2-D saturation overland flow and 3-D saturated and unsaturated subsurface flow. The model demonstrates that overland flow is initiated when rainwater supply exceeds infiltrability, not only in Hortonian but even in saturation overland flow. The model also simulates overland flow, infiltration, seepage, subsurface flow, and the interaction between subsurface and channel flows. The conjunctive model, as a general model to deal with the interaction between surface and subsurface flows, contributes as a tool for improved detailed simulation of 2-D surface and 3-D subsurface flows and their interaction.

Original languageEnglish
Title of host publicationWorld Water and Environmental Resources Congress
EditorsP. Bizier, P. DeBarry
Pages1665-1674
Number of pages10
Publication statusPublished - 2003
EventWorld Water and Environmental Resources Congress 2003 - Philadelphia, PA
Duration: 2003 Jun 232003 Jun 26

Other

OtherWorld Water and Environmental Resources Congress 2003
CityPhiladelphia, PA
Period03/6/2303/6/26

Fingerprint

subsurface flow
overland flow
saturation
infiltration
infiltration (hydrology)
watershed
analysis
watershed hydrology
Richards equation
unsaturated flow
Richards' equation
channel flow
rainwater
seepage
hydrology
boundary condition
rain
heat

ASJC Scopus subject areas

  • Water Science and Technology
  • Aquatic Science

Cite this

Morita, M. (2003). Analysis of Interaction between Surface and Subsurface Flows Using Conjunctive 2-D Surface-3-D Subsurface Flow Model. In P. Bizier, & P. DeBarry (Eds.), World Water and Environmental Resources Congress (pp. 1665-1674)

Analysis of Interaction between Surface and Subsurface Flows Using Conjunctive 2-D Surface-3-D Subsurface Flow Model. / Morita, Masaru.

World Water and Environmental Resources Congress. ed. / P. Bizier; P. DeBarry. 2003. p. 1665-1674.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Morita, M 2003, Analysis of Interaction between Surface and Subsurface Flows Using Conjunctive 2-D Surface-3-D Subsurface Flow Model. in P Bizier & P DeBarry (eds), World Water and Environmental Resources Congress. pp. 1665-1674, World Water and Environmental Resources Congress 2003, Philadelphia, PA, 03/6/23.
Morita M. Analysis of Interaction between Surface and Subsurface Flows Using Conjunctive 2-D Surface-3-D Subsurface Flow Model. In Bizier P, DeBarry P, editors, World Water and Environmental Resources Congress. 2003. p. 1665-1674
Morita, Masaru. / Analysis of Interaction between Surface and Subsurface Flows Using Conjunctive 2-D Surface-3-D Subsurface Flow Model. World Water and Environmental Resources Congress. editor / P. Bizier ; P. DeBarry. 2003. pp. 1665-1674
@inproceedings{fc9675901ba84ec38d0bd57956a10437,
title = "Analysis of Interaction between Surface and Subsurface Flows Using Conjunctive 2-D Surface-3-D Subsurface Flow Model",
abstract = "This paper presents a conjunctive 2-D surface and 3-D subsurface flow model, which deals with the interaction between surface and subsurface flows. The model uses the non-inertia approximation of the Saint-Venant equations for two-dimensional unsteady surface flow and a modified version of the Richards equation for three-dimensional unsteady unsaturated and saturated subsurface flows. The equations are written in the form of 2-D and 3-D heat diffusion equations respectively. In the model the surface and subsurface flow components are coupled interactively using the common boundary condition of infiltration through the ground surface. Overland flow is generally classified into Hortonian and saturation overland flows in watershed hydrology. The conjunctive model was, after verification with experimental data, applied to a hypothetical watershed to simulate examples of 2-D saturation overland flow and 3-D saturated and unsaturated subsurface flow. The model demonstrates that overland flow is initiated when rainwater supply exceeds infiltrability, not only in Hortonian but even in saturation overland flow. The model also simulates overland flow, infiltration, seepage, subsurface flow, and the interaction between subsurface and channel flows. The conjunctive model, as a general model to deal with the interaction between surface and subsurface flows, contributes as a tool for improved detailed simulation of 2-D surface and 3-D subsurface flows and their interaction.",
author = "Masaru Morita",
year = "2003",
language = "English",
isbn = "0784406855",
pages = "1665--1674",
editor = "P. Bizier and P. DeBarry",
booktitle = "World Water and Environmental Resources Congress",

}

TY - GEN

T1 - Analysis of Interaction between Surface and Subsurface Flows Using Conjunctive 2-D Surface-3-D Subsurface Flow Model

AU - Morita, Masaru

PY - 2003

Y1 - 2003

N2 - This paper presents a conjunctive 2-D surface and 3-D subsurface flow model, which deals with the interaction between surface and subsurface flows. The model uses the non-inertia approximation of the Saint-Venant equations for two-dimensional unsteady surface flow and a modified version of the Richards equation for three-dimensional unsteady unsaturated and saturated subsurface flows. The equations are written in the form of 2-D and 3-D heat diffusion equations respectively. In the model the surface and subsurface flow components are coupled interactively using the common boundary condition of infiltration through the ground surface. Overland flow is generally classified into Hortonian and saturation overland flows in watershed hydrology. The conjunctive model was, after verification with experimental data, applied to a hypothetical watershed to simulate examples of 2-D saturation overland flow and 3-D saturated and unsaturated subsurface flow. The model demonstrates that overland flow is initiated when rainwater supply exceeds infiltrability, not only in Hortonian but even in saturation overland flow. The model also simulates overland flow, infiltration, seepage, subsurface flow, and the interaction between subsurface and channel flows. The conjunctive model, as a general model to deal with the interaction between surface and subsurface flows, contributes as a tool for improved detailed simulation of 2-D surface and 3-D subsurface flows and their interaction.

AB - This paper presents a conjunctive 2-D surface and 3-D subsurface flow model, which deals with the interaction between surface and subsurface flows. The model uses the non-inertia approximation of the Saint-Venant equations for two-dimensional unsteady surface flow and a modified version of the Richards equation for three-dimensional unsteady unsaturated and saturated subsurface flows. The equations are written in the form of 2-D and 3-D heat diffusion equations respectively. In the model the surface and subsurface flow components are coupled interactively using the common boundary condition of infiltration through the ground surface. Overland flow is generally classified into Hortonian and saturation overland flows in watershed hydrology. The conjunctive model was, after verification with experimental data, applied to a hypothetical watershed to simulate examples of 2-D saturation overland flow and 3-D saturated and unsaturated subsurface flow. The model demonstrates that overland flow is initiated when rainwater supply exceeds infiltrability, not only in Hortonian but even in saturation overland flow. The model also simulates overland flow, infiltration, seepage, subsurface flow, and the interaction between subsurface and channel flows. The conjunctive model, as a general model to deal with the interaction between surface and subsurface flows, contributes as a tool for improved detailed simulation of 2-D surface and 3-D subsurface flows and their interaction.

UR - http://www.scopus.com/inward/record.url?scp=1642435364&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1642435364&partnerID=8YFLogxK

M3 - Conference contribution

SN - 0784406855

SP - 1665

EP - 1674

BT - World Water and Environmental Resources Congress

A2 - Bizier, P.

A2 - DeBarry, P.

ER -