TOOLS FOR FINDING GIS DATA ON THE INTERNET Purdue University Erin Huang Graduate Research Assistant Purdue University Nicole Kong GIS Specialist, Assistant Professor Purdue University Indianapolis, IN 5/8/2014

BACKGROUND OF THE PROJECT  Public Domain Geospatial Data  Exploding information  Heterogeneity  Highly dynamic  Spatial Information Literacy  Recognize the information needs  Know how to find and use the information

OUTLINES  LibGuide Background  Purdue University LibGuide  Harvest Program  Methodology  Metadata  Results  Conclusions and Application

 LibGuide Background  Purdue University LibGuide  Harvest Program  Methodology  Metadata  Results  Conclusions and Application

 Objectives  Collect public domain geospatial data  Create user-friendly databases to download GIS resources  Time saving LIBGUIDE BACKGROUND (1/3 ) Spatial Data GeoPortal University Lirbareies Government Websites Our Databases Our Databases Researchers Students Geoscientists Geography Educators Geography Educators Governors Consulting firms

 “LibGuides is an easy to use Content Management System used by many thousands of libraries worldwide.”----The Most Popular Web Publishing Platform for Libraries  Add, Reuse, Share LIBGUIDE BACKGROUND (2/3 ) Content in LibGuides LibGuides’ API & Widgets Websites, Blogs Discovery, Layer Courseware, LMS Facebook, Twitter, Social media

LIBGUIDE BACKGROUND (3/3 )  Key Words: Geospatial Data, GIS Data Source: Type Searching Interest here!

 LibGuide Background  Purdue University LibGuide  Harvest Program  Methodology  Metadata  Results  Conclusions and Application

PURDUE UNIVERSITY LIBGUDE(1/2 )  U.S. State data webpage  Please visit:  Browse U.S. State data and Theme tags we collected for our harvest program  Files downloadable  Focus on shapefile and rasters data(tiff)

PURDUE UNIVERSITY LIBGUDE(2/2 ) Vector Data Hydrographic Elevation Wetlands Boundaries and Land Parcel Environmental Energy Geologic Soils Natural Hazard Street Geographic Names Demographic Raster Data Landsat SPOT Landsat MSS (Multispectral Scanner) Landsat TM (Thematic Mapper) Landsat ETM+ (Enhanced Thematic Mapper) MODIS ASTER AVHRR VEGETATION NEO GTOP30 SRTM ASTER DEMs Lidar DEMs Land Cover Climate and Environmental Ocean Theme

 LibGuide Background  Purdue University LibGuide  Harvest Program  Methodology  Metadata  Results  Conclusions and Application

HARVEST PROGRAM(1/1 ) System Architecture

 LibGuide Background  Purdue University LibGuide  Harvest Program  Methodology  Metadata  Results  Conclusions and Application

METHODOLOGY(1 / 2 )  My SQL  HeidiSQL is a useful and reliable tool to access MySQL database.MySQL  It enables you to browse and edit data, create and edit tables, views, procedures, triggers and scheduled events.  Manually submitted data from the 50 states and themes  The system will automatically extracted downloadable files  User-friendly, without crossing traditional lists  The system will extract metadata simultaneously  Statistics results on metadata, websites frequency showed up in other libraries, as well as GIS states and theme data discovery results

METHODOLOGY(2 / 2 )

 LibGuide Background  Purdue University LibGuide  Harvest Program  Methodology  Metadata  Results  Conclusions and Application

METADATA(1/ 4) What is Metadata?  “Metadata is critical for sharing tools, data, and maps and for searching to see if the resources you need already exist. Metadata describes geographic information system (GIS) resources in the same way a card in a library's card catalog describes a book. Once you've found a resource with a search, its metadata will help you decide whether it's suitable for your purposes. To make this decision, you may need to know how accurate or current the resource is and if there are any restrictions on how it can be used. Metadata can answer these questions.”----ESRI Support key words search in our database

 Metadata Availability in 5 categories  Metadata could be extracted and saved on our server (1)  Metadata is included in the zip file (2)  Metadata is somewhere on the web but can't be extracted in 1 (3)  Metadata doesn't exist (4)  URL doesn't exist (5) METADATA(2/4 )

Metadata could be extracted and saved on our server. Metadata is included in the zip file. Metadata is somewhere on the web but can't be extracted in 1. Metadata doesn't exist. URL doesn't exist. METADATA(3/ 4)

METADATA(4/ 4) Metadata included in geodatabase. txt xml

 LibGuide Background  Purdue University LibGuide  Harvest Program  Methodology  Metadata  Results  Available data in the United States  Conclusions and Application

RESULTS (1/5 ) Collected popular GIS data websites and databases listed in other libraries (Source: LibGuide Review) MS Excel statistics Purdue Library Statistics Results

RESULTS (2/5 ) Themes and General Data

RESULTS (3/5 ) States Data

RESULTS (4/5 ) Work Dynamically generated by our system Requires user information to send downloadable link More than three layers Online map (can't be downloaded) Website out of order temporarily or has been changed

RESULTS (4/5) Work Dynamically generated by our system Requires users information to send downloadable link More than three layers Website out of order temporarily or has been changed

 LibGuide Background  Purdue University LibGuide  Harvest Program  Methodology  Metadata  Results  Conclusions and Application

 Explore more than 100+ GIS resources at a time  User-friendly and time saving  Excellent tool for your research and education CONCLUSIONS AND APPLICATION (1/2)

CONCLUSIONS AND APPLICATION (2/2)

QUESTIONS?