GIS in Water Resources (CIVE 853) Fall 2017 Introduction to ArcGIS Software Instructor: Dr. Ayse Kilic Civil Engineering and School of Natural Resources University of Nebraska

History of GIS Advent of computer in late 50’s, early 60’s—computerized mapping programs, but NOT “GIS”. No attribute data.

Environmental Systems Research Institute (ESRI) ESRI)founded in 1969—grew from research group at Harvard. Current vector-based (arcs/nodes) ArcGIS software an outgrowth of this research.

ArcGIS System Create, share, and use intelligent maps https://www.arcgis.com/

ArcGIS Key Features https://www.arcgis.com/ Spatial Analysis Data Management Mapping and Visualization Advanced Editing Geocoding Map Projections Advanced Imagery Data Sharing Customization https://www.arcgis.com/

Spatial Analysis Analytical tools and operations that can be applied to solve a very wide range of problems Derive new information from your data in order to make better decisions by applying geographic, statistical, and mathematical operations to the mapped data https://www.arcgis.com/

ArcGIS Online GIS on the web – online map services http://www.arcgis.com

Online Base Maps (20 scales)

Programming Automation of repetitive tasks (workflows) Implementation of functionality not available (programming new behavior)

Summary GIS offers a structured information model for working with geospatial data that describe the “water environment” (watersheds, streams, lakes, land use, ….) Water resources also needs observations and modeling to describe “the water” (discharge, water quality, water level, precipitation) Geography “brings things together” through georeferencing on the earth’s surface Understanding geolocation on the earth and working with geospatial coordinate systems is fundamental to this field GIS has traditionally been used on the desktop but increasingly there is a transition to information sharing on the web

Reading Assignment Introduction to Map Projections http://resources.arcgis.com/en/help/main/10.2/#/What_are_map_projections/003r00000001000000/