Tools for Finding GIS Data on the Internet

TOOLS FOR FINDING GIS DATA ON THE INTERNET Purdue University

Erin Huang Graduate Research AssistantPurdue [email protected]

Nicole Kong GIS Specialist, Assistant ProfessorPurdue [email protected]

IGIC @ Indianapolis, IN5/8/2014

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

OUTLINESLibGuide BackgroundPurdue University LibGuideHarvest ProgramMethodologyMetadataResultsConclusions and Application

Kong, Ningning Nicole

I would call this part as "Background". First, introduce why we are working on this project, then talk about LibGuide.

LibGuide BackgroundPurdue University LibGuideHarvest ProgramMethodologyMetadataResultsConclusions and Application


Add one more slide after this to talk about why we are working on this project.

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

ResearchersStudents

GeoscientistsGeography EducatorsGovernorsConsulting

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, BlogsDiscovery, Layer Courseware, LMS

Facebook, Twitter, Social media

LIBGUIDE BACKGROUND

(3/3 )Key Words:Geospatial Data, GIS Data

Source: http://libguides.com/community.php?m=s&it=0&search=gis+data

Type Searching Interest here!

PURDUE UNIVERSITY LIBGUDE(1/2 )

U.S. State data webpage Please visit: http://

guides.lib.purdue.edu/GIS Browse U.S. State data and Theme

tags we collected for our harvest program

Files downloadable Focus on shapefile and rasters

data(tiff)

http://guides.lib.purdue.edu/GIS

http://guides.lib.purdue.edu/GIS

PURDUE UNIVERSITY LIBGUDE(2/2 )

Vector Data

HydrographicElevation Wetlands

Boundaries and Land ParcelEnvironmental

EnergyGeologic

SoilsNatural Hazard

StreetGeographic Names

Demographic

Theme



I can introduce the program here.

HARVEST PROGRAM(1/1 )System Architecture

METHODOLOGY(1/2 ) My SQL

HeidiSQL is a useful and reliable tool to access MySQL database. 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

http://www.mysql.com/


We are using MySQL database. HeidiSQL is just a tool to access this database. So, you don't need to introduce this tool.

METHODOLOGY(2/2 )

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 )

4%

74%

0%

12% 10%

Metadata Category Distribution

12345

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 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)1% 3%

96%

Catagory 2 Distribution

1

23

Metadata included in geodatabase.

txtxml

Metadata included in geodatabase.txtxml

LibGuide BackgroundPurdue University LibGuideHarvest ProgramMethodologyMetadataResultsAvailable data in the United StatesConclusions 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


What does the Excel mean here?

RESULTS (2/5 )Themes and General Data

05

1015202530

Items

Numbers

RESULTS (3/5 )

02468

1012

Items

Numbers

States Data

RESULTS (4/5 )30%

20%

38%

7% 3% 3%National and Global Data (Themes) Dis-

covery Results

1

2

3

4

5

6

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


Change this to national/global data.


This category is not due to system error, but because the page is dynamically generated. Same for the next page.

65%

13%

17% 2% 4% GIS State Data Discovery Results

1

2

3

4

5

RESULTS (4/5)

Work

Dynamically generated by our system

Requires users information to send downloadable linkMore than three layers

Website out of order temporarily or has been changed

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?

Tools for Finding GIS Data on the Internet

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