Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Entire DC Network
Modeling The Effects Of Greenbelts At The Urban-Rural Fringe, Daniel G. Brown, S. E. Page, Rick L. Riolo, William Rand
Modeling The Effects Of Greenbelts At The Urban-Rural Fringe, Daniel G. Brown, S. E. Page, Rick L. Riolo, William Rand
International Congress on Environmental Modelling and Software
We present and evaluate an agent based model (ABM) of land use change at the rural-urban fringe, comparing its performance to a mathematical model of the same process. Our simplified model was developed in Swarm using agents with heterogeneous preferences and a landscape with heterogeneous properties. The context of this work is a larger project that includes surveys of the preferences of residents and data on historical patterns of development. Our broader goal is to use the model to evaluate the ecological effects of alternative policies and designs. We begin by evaluating the influence of a greenbelt, which is located …
Mesoscale Modelling Of Interactions Between Rainfall And The Land Surface In West Africa, Martin Sogalla, Michael Kerschgens
Mesoscale Modelling Of Interactions Between Rainfall And The Land Surface In West Africa, Martin Sogalla, Michael Kerschgens
International Congress on Environmental Modelling and Software
Within the joint research project IMPETUS (An integrated approach to the efficient management of scarce water resources in West Africa), the effect of interactions between the earth’s surface and the atmosphere on fresh water availability is investigated for a river catchment in Benin by simulations with a non-hydrostatic mesoscale meteorological model. A combination of idealised ensemble simulations with a column version of the model and complex modelling of real precipitation events is employed to assess the sensitivity of precipitation to variations in the land surface. Idealised ensemble studies exhibit a dominant influence of initial soil water content and an enhanced …
Process-Based Ecohydrological Modelling At The River Basin Scale And Options For Regionalisation, Valentina Krysanova, Fred Hattermann, Frank Wechsung
Process-Based Ecohydrological Modelling At The River Basin Scale And Options For Regionalisation, Valentina Krysanova, Fred Hattermann, Frank Wechsung
International Congress on Environmental Modelling and Software
The paper discusses the importance of physical basis and level of complexity in ecohydrological models at the catchment scale, their spatial structure and temporal resolution, and preconditions for regional applications of models of that kind. As an example, the process-based ecohydrological model SWIM developed for integrated modelling of interrelated hydrological processes, vegetation dynamics and nutrient cycling at the river basin scale is presented along with examples of its validation and a regional climate impact case study.
An Integrated Modelling Approach For Assessing Water Policy Rules And Land Use Change Options, Juliet Gilmour, R. A. Letcher
An Integrated Modelling Approach For Assessing Water Policy Rules And Land Use Change Options, Juliet Gilmour, R. A. Letcher
International Congress on Environmental Modelling and Software
The primary aim of the study has been to develop a modelling framework to quantitatively assess the impact of water allocation rules upon economic and biophysical environments (primarily hydrological) at the catchment scale. This paper identifies development of the modelling approach to answer allocation questions by examining hydrological, land and agricultural production systems. The conceptual framework underpinning the modelling approach identifies the major aspects of integration between hydrological and production systems. The production model is integrated at various points within the hydrological cycle including rainfall, streamflow and runoff components. The outcome of the approach allows water to be moved around …
A Negotiation Support Tool For Assessment Of Land Use Change Impacts On Erosion In A Previously Forested Watershed In Lampung, Sumatra, Indonesia, B. J. P. Verbist, Meine Van Noordwijk, A. C. Tameling, K. C. L. Schmitz, S. B. L. Ranieri
A Negotiation Support Tool For Assessment Of Land Use Change Impacts On Erosion In A Previously Forested Watershed In Lampung, Sumatra, Indonesia, B. J. P. Verbist, Meine Van Noordwijk, A. C. Tameling, K. C. L. Schmitz, S. B. L. Ranieri
International Congress on Environmental Modelling and Software
Land use is changing rapidly in SE-Asia from forest to landscape mosaics with various degrees of tree cover. The relations between impacts at these different scales should recognize a range of 'lateral flow' and 'filter' phenomena. To develop concepts and an appropriate methodology, ICRAF and partner institutions study land use and its change in Sumberjaya, West-Lampung, Sumatra an area of about 730 km2, which encompasses a watershed, that was transformed in the past three decades from a large forest cover to a mosaic of coffee farms with rice paddies in the valleys and which has seen quite some conflict over …