SimuMap: a computational system for spatial modelling Export

@article{citeulike:1923109, abstract = {The paper presents a computational system based upon formal principles to run spatial models for environmental processes. The simulator is named SimuMap because it is typically used to simulate spatial processes over a mapped representation of terrain. A model is formally represented in SimuMap as a set of coupled sub-models. The paper considers the situation where spatial processes operate at different time levels, but are still integrated. An example of such a situation commonly occurs in watershed hydrology where overland flow and stream channel flow have very different flow rates but are highly related as they are subject to the same terrain runoff processes. SimuMap is able to run a network of sub-models that express different time-space derivatives for water flow processes. Sub-models may be coded generically with a map algebra programming language that uses a surface data model. To address the problem of differing time levels in simulation, the paper: (i) reviews general approaches for numerical solvers, (ii) considers the constraints that need to be enforced to use more adaptive time steps in discrete time specified simulations, and (iii) scaling transfer rates in equations that use different time bases for time-space derivatives. A multistep scheme is proposed for SimuMap. This is presented along with a description of its visual programming interface, its modelling formalisms and future plans.}, author = {Pullar, D.}, booktitle = {Concepts, Methods and Applications in Environmental Model Integration}, citeulike-article-id = {1923109}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/S1364-8152(03)00151-8}, citeulike-linkout-1 = {http://www.sciencedirect.com/science/article/B6VHC-49KH3CS-2/2/245831d22de66e9be89729ef43eddb90}, doi = {10.1016/S1364-8152(03)00151-8}, journal = {Environmental Modelling \& Software}, keywords = {alea, component, composition, dataflow, modeling, modularity}, month = {March}, number = {3}, pages = {235--243}, posted-at = {2007-11-15 16:30:36}, priority = {2}, title = {SimuMap: a computational system for spatial modelling}, url = {http://dx.doi.org/10.1016/S1364-8152(03)00151-8}, volume = {19}, year = {2004} }

TY - JOUR ID - citeulike:1923109 L3 - citeulike-article-id:1923109 N2 - The paper presents a computational system based upon formal principles to run spatial models for environmental processes. The simulator is named SimuMap because it is typically used to simulate spatial processes over a mapped representation of terrain. A model is formally represented in SimuMap as a set of coupled sub-models. The paper considers the situation where spatial processes operate at different time levels, but are still integrated. An example of such a situation commonly occurs in watershed hydrology where overland flow and stream channel flow have very different flow rates but are highly related as they are subject to the same terrain runoff processes. SimuMap is able to run a network of sub-models that express different time-space derivatives for water flow processes. Sub-models may be coded generically with a map algebra programming language that uses a surface data model. To address the problem of differing time levels in simulation, the paper: (i) reviews general approaches for numerical solvers, (ii) considers the constraints that need to be enforced to use more adaptive time steps in discrete time specified simulations, and (iii) scaling transfer rates in equations that use different time bases for time-space derivatives. A multistep scheme is proposed for SimuMap. This is presented along with a description of its visual programming interface, its modelling formalisms and future plans. IS - 3 JF - Environmental Modelling & Software EP - 243 TI - SimuMap: a computational system for spatial modelling VL - 19 T2 - Concepts, Methods and Applications in Environmental Model Integration SP - 235 KW - alea KW - component KW - composition KW - dataflow KW - modeling KW - modularity AU - Pullar, D PY - 2004/03// UR - http://dx.doi.org/10.1016/S1364-8152(03)00151-8 ER -