'Flow direction grid' diaporamas de présentation

Digital Elevation Model Based Watershed and Stream Network Delineation

Digital Elevation Model Based Watershed and Stream Network Delineation. Reading. How to use. Understanding. Key Spatial Analysis Concepts from Exercise 3. Contours and Hillshade to visualize topography. Zonal Average of Raster over Subwatershed. Join.

944 views • 78 slides

Building Hydrologic Information Systems

Building Hydrologic Information Systems. David R. Maidment Center for Research in Water Resources University of Texas at Austin. Modeling. Modeling. Hydrologic Information System. A combination of geospatial and temporal hydrologic information

675 views • 58 slides

Hydrologic Measurement

Hydrologic Measurement. Precipitation Evaporation Streamflow Channel Properties Topography GIS datasets. Reading: Applied Hydrology Chapter 6. Hydrologic Measurement. Water Quality Sampling. Precipitation, Climate, Stream Gaging. Precipitation Station. Tipping Bucket Raingage

639 views • 52 slides

Hydrologic Measurement

Hydrologic Measurement. Precipitation Evaporation Streamflow Channel Properties Topography GIS datasets. Reading: Applied Hydrology Chapter 6. Hydrologic Measurement. Water Quality Sampling. Precipitation, Climate, Stream Gaging. Precipitation Station. Tipping Bucket Raingage

694 views • 52 slides

GEOG5060 GIS & Environment

School of Geography FACULTY OF ENVIRONMENT. GEOG5060 GIS & Environment. Dr Steve Carver Email: S.J.Carver@leeds.ac.uk. Lecture 8: Hydrological modelling 1: catchment models. Outline: Basics of hydrology Creating hydrologically correct DEMs Modelling catchment variables.

526 views • 43 slides

GEO 479/559 Lab GIS For Environmental Modeling

529 views • 28 slides

DEM-Based Stream and Watershed Delineation

DEM-Based Stream and Watershed Delineation. Francisco Olivera, Ph.D., P.E. Texas A&M University Department of Civil Engineering. Watershed Delineation. Watershed delineation is the process of identifying the drainage area of a point or set of points.

728 views • 27 slides

Digital Elevation Models and Hydrology

Digital Elevation Models and Hydrology. David G. Tarboton dtarb@cc.usu.edu. http://www.engineering.usu.edu/dtarb. Overview. Hillslope and Channel processes Digital elevation model derived flow networks Objective drainage density estimation Secondary DEM analysis functionality Influence

277 views • 27 slides

Hydrologic Analysis

Hydrologic Analysis. Francisco Olivera, Ph.D., P.E. Srikanth Koka Department of Civil Engineering Texas A&M University. Watershed Delineation. Watershed delineation is the process of identifying the drainage area of a point.

541 views • 26 slides

Topics of Discussion

A Cell to Cell Routing Model By : Rajeev Raina CVEN 689 Civil Engineering Applications of GIS Instructor : Dr. Francisco Olivera. Topics of Discussion. Introduction Significance of this work Methodology Goals Ahead. Introduction. What is a Cell to Cell routing model?

290 views • 22 slides

Mary Lear

Mary Lear. Global Hydrology and Resampling Flow Direction Data April 22, 1999. Outline. Introduction Global Hydrology and Climate System Model Resampling Programs Methodology Interesting Concepts River Networks. Global Hydrology. Tele-Connections Interdisciplinary Studies .

511 views • 15 slides

Why calculate slope and Aspect?

Why calculate slope and Aspect?. S tudy the flow of water I dentify the habitats of plants Identify potential sites for urban growth D rainage patterns on digital elevation models (DEMs) E nvironmental modeling. Slope.

543 views • 13 slides

Why calculate slope and Aspect?

Why calculate slope and Aspect?. S tudy the flow of water I dentify the habitats of plants Identify potential sites for urban growth D rainage patterns on digital elevation models (DEMs) E nvironmental modeling. Slope.

280 views • 13 slides