Emergency management/Emergency service is a compelling domain for applying GIS Web Service. GIS Web Service expands the further development of GIS. A Web service is described using XML-standards like the WSDL (Web Service Description Language). Web Services, are different from Web applications, don’t require people to use; but software applications to call. Thus, the Web service does not have a...

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It is an important to offer a user friendly interface in WebGIS. Excellent map services can be offered by ArcGIS Server. But the problem that the client fetches some data on a Web page from the server quickly is not solved well by ArcGIS Server, Ajax technology can overcome it. When getting large amount of data from server, It takes long time to parse the data for Ajax. To the study “Beijing Ag...

A yield estimation method by remote sensing was used to estimate the yield of winter wheat in Jiangsu province, China. The first step of this study was to extract the planting area of winter wheat from environmental satellite images and land -use map of Jiangsu province, meanwhile, correlation analyses were performed by using 8-day of composite Leaf Area Index (LAI) data from Moderate Resolutio...

As networking and data storage technologies advance, web services have become a commonplace for data mining and sharing in an e-business model. Compared with business information, geospatial information is normally overwhelmed by the sheer volume of data. There has been a great need for the integration of web services and geospatial information to provide a platform for geospatial information d...

Service-oriented architecture supports data and model sharing and interoperability. The concept of such a service-oriented and distributed architecture is applied to build and integrate web-based service models of ecological resources quantitative measurement. The paper is to develop and integrate a GI web service by using an algorithm that calculates net primary productivity of terrestrial veg...

To study crop recommendation fertilization of the rural farmers as the main in our country, the paper took towns and villages of Hua County as the study area, took recommendation fertilization of wheat, maize and peanut as the study object, designed model components of crop balance fertilization by using Object-Oriented technique, and developed the decision-making system about crop recommendati...

Centralized data storage and data exchange is a key issue in many interdisciplinary research projects that focus on environmental field studies and regional modelling on various scales. Furthermore, the overall success of such projects depends on a well organized and prepared graphical representation of spatial project data within web mapping applications. In this contribution, we introduce the...

In traditional image production workflows, imagery is processed in multiple steps, with the imagery being sampled multiple times, and being read and written to disk multiple times. This reduces image quality and production efficiency. The linear workflows also are susceptible to bottlenecks when a single parameter in the workflow is not available or needs to be changed. ArcGIS Image server enab...

This article presents the conceptual design of a collaborative web-based Geographic Information System (GIS) for land use planning in which all parties including land use planners, applicants/developers, and community stakeholders can participate. The approach employs three-tier architecture built in a Java client-server environment, and consists of the ESRI ArcGIS 9.2® Server Advanced Edition ...