Predicting land and weather characteristics as indicators of suitability is very important in increasing effectiveness food production. This study aims to evaluate the garlic using spatial decision tree algorithm. The algorithm improvement conventional which join relation included grow up tree. dataset consists a target layer that represents ten explanatory layers represent areas Magetan Solok ...

T he purpose of this paper is the evaluation of suitability ofspatial error STAR model for modeling convergence of social welfare of Iran's provinces between 2000 and 2013. In this paper the LM tests show that the non-linear method is appropriate for convergence evaluation. In addition, the results indicate that 2 groups of provinces are separable: group 1 in which the social welfare...

Water changes information in the hydrological system, in time and space, as an environmental issue takes heed of managers and decision makers in watershed management and river engineering, which can be addressed by using spatially distributed modeling. In this study simulation of water balance components in Taleghan mountainous watershed is performed using the spatially distributed hydrological...

Surface waters are the most important economic resource for humans which provide water for agricultural, industrial and anthropogenic activities. Surface water quality plays vital role in protecting aquatic ecosystems. Unplanned urbanization, intense agricultural activities and deforestation are positively associated with carbon, nitrogen and phosphorous related water quality parameters. Multip...

The characteristics of acoustic waves propagating in the atmosphere are mainly determined by the environment. Acoustic signals vary both in space and time, and the dominant source of this variability is the turbulence of the atmospheric boundary layer. The influence of temperature and velocity random fluctuations have been demonstrated in many experimental studies. During the last decade signif...

Three decapod species in the Gulf of Maine (American lobster Homarus americanus Milne Edwards, 1837, rock crab Cancer irroratus Say, 1817, and Jonah crab Cancer borealis Stimpson, 1859) were investigated to determine how their patterns of settlement and post-settlement abundance varied at different spatial and temporal scales. Spatial scales ranged from centimeters to hundreds of kilometers. Ab...

In this paper we propose a method for efficient management of large spatial ontologies. Current spatial ontologies are usually represented using an ontology language, such as OWL and stored as OWL files. However, we have observed some shortcomings using this approach especially in the efficiency of spatial query processing. This fact motivated the development of a hybrid approach that uses an R...