scholarly journals Comparing the capability of distributed and lumped hydrologic models for analyzing the effects of land use change

2010 ◽  
Vol 13 (3) ◽  
pp. 461-473 ◽  
Author(s):  
Murari Paudel ◽  
E. James Nelson ◽  
Charles W. Downer ◽  
Rollin Hotchkiss
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Spatial Location ◽  
Distributed Model ◽  
Army Corps ◽  
Water Runoff ◽  
Hydrologic Models ◽  
Runoff Simulation ◽  
High Resolution Data ◽  
Distributed Models

Empirically based lumped hydrologic models have an extensive track record of use for various engineering applications. Physically based, multi-dimensional distributed models have also been in development and use for many years. Despite the availability of high resolution data, better computational resources and robust, numerical methods implemented in such models, their usage is still limited, especially in the realm of surface water runoff simulation. Lumped models are often extended to solve complex hydrologic problems that may be beyond their capabilities. Here we attempt to differentiate the ability of lumped and distributed models to analyze a common watershed development issue such as land use change. For this, we employ two common US Army Corps of Engineers (USACE) models, well established in the literature and application, using the Hydrologic Engineering Center – Hydrologic Modeling System (HEC-HMS) model in a fully lumped mode and the fully distributed model Gridded Surface Subsurface Hydrologic Analysis (GSSHA). A synthetic watershed is used to establish that a distributed model like GSSHA more intuitively simulates land use change scenarios by distinguishing the spatial location of the change and its effects on the watershed response. An actual watershed at Tifton, Georgia is used to validate the observations made from the synthetic watershed.

scholarly journals The Influence of Land Use Change and Spatial Discretization of Middle - Lower Ciliwung Sub-Watershed on Flood Hydrograph at Manggarai Weir : a Preliminary Study

2018 ◽  
Vol 7 (3.30) ◽  
pp. 497
Author(s):  
Nonik Eko Wahyuning Tiyas ◽  
Dwita Sutjiningsih
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Army Corps ◽  
Spatial Discretization ◽  
Rapid Urbanization ◽  
Us Army ◽  
Impervious Area ◽  
Strategic Value ◽  
Flood Hydrograph ◽  
Lowland Area

Jakarta is a lowland area with 40% of its territory at an elevation below the sea level so it is very vulnerable to flooding. One of out many causes floods in Jakarta is by the overflow of the Ciliwung River. The Ciliwung Watershed has a very strategic value in Indonesia because the Ciliwung River is one of thirteen rivers crossing the nation's capital. The rapid urbanization and population growth led to an increasing impervious area in the Ciliwung Watershed which resulted in a flood hydrograph change. This research aims to determine the influence of land use change, which is taking into account the spatial discretization and the riparian characteristic of Middle - Lower Ciliwung Sub-Watershed on flood hydrograph at Manggarai Weir. This research reviews the related literature on the implementation of HEC-GeoHMS version 10.1 developed by US Army Corps of Engineers (2013) to estimate the effect of land use change on flood hydrographs by taking into account the characteristics of the riparian described descriptively and present arguments to claim that the discretization spatial method can provide significantly more flood hydrographs results with existing conditions.  

scholarly journals Coupling land-use change and hydrologic models for quantification of catchment ecosystem services

2018 ◽  
Vol 109 ◽  
pp. 315-328 ◽  
Author(s):  
S.G. Yalew ◽  
T. Pilz ◽  
C. Schweitzer ◽  
S. Liersch ◽  
J. van der Kwast ◽  
...  
Keyword(s):  
Land Use ◽  
Ecosystem Services ◽  
Land Use Change ◽  
Hydrologic Models

scholarly journals Soil Loss and Sediment Export from Land Use of the George Town Conurbation Catchment

2020 ◽  
Author(s):  
Zullyadini A. Rahaman ◽  
Mohamad Adam Omar ◽  
Narimah Samat ◽  
and Mohd Amirul Mahamud
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Soil Conservation ◽  
Soil Loss ◽  
Water Runoff ◽  
Conservation Practice ◽  
Sediment Yields ◽  
Sediment Export ◽  
George Town ◽  
Annual Sediment

The information on the land use and soil conservation practice based on year 2006, 2010 and 2014, hence offering an opportunity to model the impacts of land use change on erosion, deposition and surface water runoff. Limitation in the use of hydrological models had been their inability to handle the large amount of input data that describe the heterogeneity of the natural system. In this study, a procedure that takes into account soil conservation practice based on the land use change, the response of soil erosion and sediment export from the George Town Conurbation catchment area, and average annual sediment yields were estimated for each grid cell of the watershed to identify the critical erosion areas of rural and urban planning proposes. Average annual sediment yield and data on a grid basis estimated using Universal Soil Loss Equation (USLE) and an emerging technology represented by Geographic Information System (GIS) used as a tool to produce a map for erosion rate. The changing of the land use from forest to agriculture and then to an urban area is a challenging task to research on land use demand for population, and environmental impact assessment is important for the planning of natural resources management, allowing research the modification of land use properly and implement more sustainable for long term management strategies. The challenge is to formulate strategies that would promote an integrated approach to the land use planning at an appropriate level as to address the issues that arose. Modelling for creating urban growth boundary for the George Town Conurbation must have to be controlled surface runoff and soil loss and sediment export from land use of the George Town Conurbation catchment.

scholarly journals The Performance of Physically Based and Conceptual Hydrologic Models: A Case Study for Makkah Watershed, Saudi Arabia

Water ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1098
Author(s):  
Ahmed M. Al-Areeq ◽  
Muhammad A. Al-Zahrani ◽  
Hatim O. Sharif
Keyword(s):  
Land Use ◽  
Saudi Arabia ◽  
Urban Areas ◽  
Hydrologic Model ◽  
Distributed Model ◽  
Distributed Models ◽  
Physically Based ◽  
Urbanizing Watershed ◽  
Flooding Events ◽  
Runoff Discharge

Population growth and land use modification in urban areas require the use of accurate tools for rainfall-runoff modeling, especially where the topography is complex. The recent improvement in the quality and resolution of remotely sensed precipitation satisfies a major need for such tools. A physically-based, fully distributed hydrologic model and a conceptual semi-distributed model, forced by satellite rainfall estimates, were used to simulate flooding events in a very arid, rapidly urbanizing watershed in Saudi Arabia. Observed peak discharge for two flood events was used to compare hydrographs simulated by the two models, one for calibration and one for validation. To further explore the effect of watershed heterogeneity, the hydrographs produced by three implementations of the conceptual were compared against each other and against the output of the physically-based model. The results showed the ability of the distributed models to capture the effect of the complex topography and variability of land use and soils of the watershed. In general, the GSSHA model required less calibration and performed better than HEC-HMS. This study confirms that the semi-distributed HEC-HMS model cannot be used without calibration, while the GSSHA model can be the best option in the case of a lack of data. Although the two models showed good agreement at the calibration point, there were significant differences in the runoff, discharge, and infiltration values at interior points of the watershed.

Sign in / Sign up

Export Citation Format

Share Document