'Flow directions' diaporamas de présentation

Efficient Algorithms for Large-Scale GIS Applications

Efficient Algorithms for Large-Scale GIS Applications. Laura Toma Duke University. Why GIS?. How it all started.. Duke Environmental researchers: computing flow accumulation for Appalachian Mountains took 14 days (with 512MB memory) 800km x 800km at 100m resolution ? ~64 million points

689 views • 57 slides

Efficient Algorithms for Large-Scale GIS Applications

Efficient Algorithms for Large-Scale GIS Applications. Laura Toma Duke University. Why GIS?. How it all started.. Duke Environmental researchers: computing flow accumulation for Appalachian Mountains took 14 days (with 512MB memory) 800km x 800km at 100m resolution ? ~64 million points

553 views • 54 slides

623 views • 41 slides

Flow Computation on Massive Grid Terrains

Flow Computation on Massive Grid Terrains. Lars Arge Laura Toma Dept. of Computer Science Duke University , USA. Helena Mitasova Dept. of Marine, Earth & Atmospheric Sciences , NCSU , USA. http://www.cs.duke.edu/geo*/terraflow. Flow direction The direction water flows at a cell

448 views • 36 slides

Flow modeling on grid terrains

Flow modeling on grid terrains. Why GIS?. How it all started.. Duke Environmental researchers: computing flow accumulation for Appalachian Mountains took 14 days (with 512MB memory) 800km x 800km at 100m resolution ? ~64 million points GIS ( G eographic I nformation S ystems)

336 views • 33 slides

Multi-flow directions in ANUDEM Michael Hutchinson Fenner School of Environmental and Society

232 views • 21 slides

Spill Prevention, Control, and Countermeasure (SPCC) Plan

400 views • 19 slides

HONR 297 Environmental Models

HONR 297 Environmental Models. Chapter 2: Ground Water 2.8: Determining Approximate Flow Direction. Courtesy: Charles Hadlock , Mathematical Modeling in the Environment. Key Factors for Flow Direction.

316 views • 15 slides

Shoshone Falls

National Watershed Boundary Data. National Hydrography Dataset. Principal Steward Linda Davis Technical POC Genna Ashley-Poulson genna.ashley@idwr.idaho.gov. Regional POC Henry Nelson Principal Steward Linda Davis Technical POC Wilma Robertson

169 views • 6 slides