Related Experiment Video
Updated: Jan 2, 2026
12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
8.4K
Global hydro-environmental sub-basin and river reach characteristics at high spatial resolution
Simon Linke1, Bernhard Lehner2, Camille Ouellet Dallaire3
1Australian Rivers Institute, Griffith University, Brisbane, QLD, 4111, Australia. s.linke@griffith.edu.au.
Scientific Data
|December 11, 2019
Summary
The HydroATLAS database offers global hydro-environmental data for watersheds and rivers. This comprehensive dataset supports diverse hydro-ecological assessments with standardized, high-resolution information.
Area of Science:
- Environmental science
- Hydrology
- Geospatial science
Background:
- Global hydro-environmental data is fragmented and lacks standardization.
- Existing datasets often lack high spatial resolution and network connectivity.
- A unified, comprehensive database is needed for global hydrological and ecological studies.
Purpose of the Study:
- To introduce HydroATLAS, a global database of hydro-environmental information.
- To provide standardized data for watersheds and rivers at high spatial resolution.
- To support versatile hydro-ecological assessments through integrated data.
Main Methods:
- Aggregating and reformatting data from global digital maps.
- Accumulating hydro-environmental characteristics along drainage networks.
- Linking attributes to hierarchically nested sub-basins and river reaches using HydroSHEDS data.
Main Results:
- HydroATLAS Version 1.0 contains 56 variables across six categories.
- Data is organized into 281 attributes linked to sub-basins and river reaches.
- The database is compatible with the HydroSHEDS project for network analysis.
Conclusions:
- HydroATLAS provides a standardized, high-resolution global hydro-environmental dataset.
- Its structure facilitates easy application and network functionality.
- The database enables versatile hydro-ecological assessments for a wide user community.
Related Concept Videos
01:25Selected Data About Geographic Locations
232
Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
232
01:29Applications of GIS: Disaster Management and Emergency Response
397
Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
397
01:29Levels of Use of a GIS
283
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
283
01:03Precipitation Gravimetry
12.8K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
12.8K
01:17Design Example: Analyzing Capacity Contours for Flood Risk Assessment
257
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
257
01:21Manipulation and Analysis
253
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
253