El trabajo de investigación se realizó en la subcuenca del río Yanayacu (Ancash – Perú), tuvo como objetivos: realizar caracterización y contrastación las ecuaciones empíricas existentes literatura científica relacionadas a red hídrica. Se emplearon materiales cartas digitales 20i Recuay el software Arcgis 10.8. Las leyes Horton número cauces, longitud media los cauces para un orden dado ley Me...

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...

As a basic data structure in geometry, theoretical and computational aspects of Voronoi diagrams (VDs) and multiplicatively weighted Voronoi diagrams (MWVDs) have been widely researched and applied. But few algorithms are implemented in combination with geographic information system (GIS) softwares for practical use. A vector-based algorithm based on ArcGIS Engine (AE) is proposed to generate V...

In this paper a new approach for quality measurement and improvement using map matching and map fusion is introduced. In the first part we describe a matching model based on “Buffer growing”. The matching, which is the basis for the quality inspection and the map fusion, is performed manually with a tool developed with VBA and ArcGIS. The quality inspection can be subdivided into a global and a...

The petrochemical industry PT Kaltim Methanol Industri Bontang City, uses auxiliary boilers with natural gas fuel and is connected to the stack emit pollutants into atmosphere. objectives of this study are SO2 modeling a radius 5 kilometers NO2 10 from emission source. Modeling using AERMOD software, AERMET Software, Aermap ArcGIS Software. wind rose in dominant research area southwest northeas...

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...