HydroGraph: Exploring Geographic Data in Graph Databases
نویسندگان
چکیده
Water becomes, every day, more scarce. Reliable information about volume and quality in each watershed is important to management and proper planning of their use. Data-intensive science is being increasingly needed in this context. Associated analysis processes require handling the drainage network that represents a watershed. This paper presents an ongoing work that explores geographic watershed data using graph databases – a scalable and flexible kind of NoSQL databases. The Brazilian Watershed database is used as a case study. The mapping between geographic and graph models is based on the natural network that emerges from the topological relationships among geographic entities.
منابع مشابه
تاثیر اصلاحکنندههای خاک روی تعییرات آبنمود و رسوبنمود در شرایط آزمایشگاهی
Insufficient information regarding the time distribution of runoff and sediment yield during a storm event is one of the available major issues in the success soil and water conservation projects. However, limited studies have been considered in various scales and especially in cooperation with application of amendments on hydrograph and sediment graphs. Hence, the present laboratory research w...
متن کاملSimulating Optimal Scenarios of Urbanization Impacts on Flow Hydro-graph and Sediment Concentration in Ziarat Watershed, Iran
Extended abstract 1- INTRODUCTION Landuse change due to human activities is one of the important issues in regional planning. Considering the advantages and capabilities of the distributed hydrological models, they are appropriate for the survey of landuse changes as well as their quantitative estimates. Land evaluation methods are used to determine the compatibility of the land according to ...
متن کاملIntegrating Satellite based Remote Sensing Observations with SCS Curve Number Method for Simplified Hydrologic Modeling in Ungauged Basins
Accurate estimation of spatial and temporal distribution of the water resources parameters is a crucial for hydrologic models. During the last decades, engineers and planners have shown keen interest in applying Geographic Information Systems (GIS) and satellite based Remote Sensing (RS) technologies to extract land surface parameters, which acted as a threshold in early days, to obtain reasona...
متن کاملQuerying on a Persistent Graph Logic Programming Language
A problem with current database technology is its inability to represent complex relationships in a declarative form. Data models which can naturally represent complex structure must be able to describe a domain in a exible and accurate manner. The relational data model has in exible requirements for join tables and object-oriented databases emphasize behavior over representing structural infor...
متن کاملApplication and National Geographic Information System Database to Support Two-Year Flood and Threshold Runoff Estimates
A computer application and national geospatial database have been developed to support the calculation of flooding flow (Q f) and threshold runoff across the conterminous United States and Alaska. Flooding flow is the flow required to cause a stream to slightly overflow its bank and cause damage. Threshold runoff @L#, defined as the depth of runoff required to cause flooding, is computed as flo...
متن کامل