Spatial discretization of distributed hydrological response units for SWAT

Jicai Ning; Zhiqiang Gao; Wenjiang Zhang; Runhe Shi; Wei Gao

doi:10.1117/12.2058303

Spatial discretization of distributed hydrological response units for SWAT

Jicai Ning
, Zhiqiang Gao^*
, Wenjiang Zhang
, Runhe Shi
, Wei Gao

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The Soil and Water Assessment Tool (SWAT) is a well established eco-hydrologic model. For the semi-distributed hydrological model, Hydrological Response Units (HRUs) are the basic modeling units, which are defined by land use, soil and slope. Land surface patches within one Hydrological Response Units (HRUs) should bear identical hydrological properties (including land use, soil, slope and management) and thus have similar hydrological responses. However, it is difficult to determinate the spatial locations and to describe the interactions between different HRUs. This study proposed one schema to discretize HRUs for SWAT on the basis of generalized data input. Within a small watershed of Taihu Basin, the data of land use and soil were generalized for discretizing SWAT HRUs. The SWAT model was modified with the discretized HRUs. The resulted showed that the SWAT improved by discretization schema could be more sensitive the runoff lag process and thus achieved better simulation accuracy.

Original language	English
Title of host publication	Remote Sensing and Modeling of Ecosystems for Sustainability XI
Editors	Jinnian Wang, Ni-Bin Chang, Wei Gao
Publisher	SPIE
ISBN (Electronic)	9781628412482
DOIs	https://doi.org/10.1117/12.2058303
State	Published - 2014
Externally published	Yes
Event	Remote Sensing and Modeling of Ecosystems for Sustainability XI - San Diego, United States Duration: 18 Aug 2014 → 20 Aug 2014

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9221
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Remote Sensing and Modeling of Ecosystems for Sustainability XI
Country/Territory	United States
City	San Diego
Period	18/08/14 → 20/08/14

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 13 Climate Action
SDG 15 Life on Land

Keywords

HRU spatial discretization
Runoff lag
SWAT
Taihu lake basin

Access to Document

10.1117/12.2058303

Cite this

Ning, J., Gao, Z., Zhang, W., Shi, R., & Gao, W. (2014). Spatial discretization of distributed hydrological response units for SWAT. In J. Wang, N.-B. Chang, & W. Gao (Eds.), Remote Sensing and Modeling of Ecosystems for Sustainability XI Article 922105 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9221). SPIE. https://doi.org/10.1117/12.2058303

@inproceedings{57884184da584066bb40870c82573542,

title = "Spatial discretization of distributed hydrological response units for SWAT",

abstract = "The Soil and Water Assessment Tool (SWAT) is a well established eco-hydrologic model. For the semi-distributed hydrological model, Hydrological Response Units (HRUs) are the basic modeling units, which are defined by land use, soil and slope. Land surface patches within one Hydrological Response Units (HRUs) should bear identical hydrological properties (including land use, soil, slope and management) and thus have similar hydrological responses. However, it is difficult to determinate the spatial locations and to describe the interactions between different HRUs. This study proposed one schema to discretize HRUs for SWAT on the basis of generalized data input. Within a small watershed of Taihu Basin, the data of land use and soil were generalized for discretizing SWAT HRUs. The SWAT model was modified with the discretized HRUs. The resulted showed that the SWAT improved by discretization schema could be more sensitive the runoff lag process and thus achieved better simulation accuracy.",

keywords = "HRU spatial discretization, Runoff lag, SWAT, Taihu lake basin",

author = "Jicai Ning and Zhiqiang Gao and Wenjiang Zhang and Runhe Shi and Wei Gao",

note = "Publisher Copyright: {\textcopyright} 2014 SPIE.; Remote Sensing and Modeling of Ecosystems for Sustainability XI ; Conference date: 18-08-2014 Through 20-08-2014",

year = "2014",

doi = "10.1117/12.2058303",

language = "英语",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Jinnian Wang and Ni-Bin Chang and Wei Gao",

booktitle = "Remote Sensing and Modeling of Ecosystems for Sustainability XI",

address = "美国",

}

Ning, J, Gao, Z, Zhang, W, Shi, R & Gao, W 2014, Spatial discretization of distributed hydrological response units for SWAT. in J Wang, N-B Chang & W Gao (eds), Remote Sensing and Modeling of Ecosystems for Sustainability XI., 922105, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9221, SPIE, Remote Sensing and Modeling of Ecosystems for Sustainability XI, San Diego, United States, 18/08/14. https://doi.org/10.1117/12.2058303

Spatial discretization of distributed hydrological response units for SWAT. / Ning, Jicai; Gao, Zhiqiang; Zhang, Wenjiang et al.
Remote Sensing and Modeling of Ecosystems for Sustainability XI. ed. / Jinnian Wang; Ni-Bin Chang; Wei Gao. SPIE, 2014. 922105 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9221).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Spatial discretization of distributed hydrological response units for SWAT

AU - Ning, Jicai

AU - Gao, Zhiqiang

AU - Zhang, Wenjiang

AU - Shi, Runhe

AU - Gao, Wei

PY - 2014

Y1 - 2014

N2 - The Soil and Water Assessment Tool (SWAT) is a well established eco-hydrologic model. For the semi-distributed hydrological model, Hydrological Response Units (HRUs) are the basic modeling units, which are defined by land use, soil and slope. Land surface patches within one Hydrological Response Units (HRUs) should bear identical hydrological properties (including land use, soil, slope and management) and thus have similar hydrological responses. However, it is difficult to determinate the spatial locations and to describe the interactions between different HRUs. This study proposed one schema to discretize HRUs for SWAT on the basis of generalized data input. Within a small watershed of Taihu Basin, the data of land use and soil were generalized for discretizing SWAT HRUs. The SWAT model was modified with the discretized HRUs. The resulted showed that the SWAT improved by discretization schema could be more sensitive the runoff lag process and thus achieved better simulation accuracy.

AB - The Soil and Water Assessment Tool (SWAT) is a well established eco-hydrologic model. For the semi-distributed hydrological model, Hydrological Response Units (HRUs) are the basic modeling units, which are defined by land use, soil and slope. Land surface patches within one Hydrological Response Units (HRUs) should bear identical hydrological properties (including land use, soil, slope and management) and thus have similar hydrological responses. However, it is difficult to determinate the spatial locations and to describe the interactions between different HRUs. This study proposed one schema to discretize HRUs for SWAT on the basis of generalized data input. Within a small watershed of Taihu Basin, the data of land use and soil were generalized for discretizing SWAT HRUs. The SWAT model was modified with the discretized HRUs. The resulted showed that the SWAT improved by discretization schema could be more sensitive the runoff lag process and thus achieved better simulation accuracy.

KW - HRU spatial discretization

KW - Runoff lag

KW - SWAT

KW - Taihu lake basin

UR - https://www.scopus.com/pages/publications/84922727166

U2 - 10.1117/12.2058303

DO - 10.1117/12.2058303

M3 - 会议稿件

AN - SCOPUS:84922727166

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Remote Sensing and Modeling of Ecosystems for Sustainability XI

A2 - Wang, Jinnian

A2 - Chang, Ni-Bin

A2 - Gao, Wei

PB - SPIE

T2 - Remote Sensing and Modeling of Ecosystems for Sustainability XI

Y2 - 18 August 2014 through 20 August 2014

ER -

Spatial discretization of distributed hydrological response units for SWAT

Abstract

Publication series

Conference

UN SDGs

Keywords

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