TOOLS FOR FINDING GIS DATA ON THE INTERNET Purdue University Erin Huang Graduate Research Assistant Purdue University [email protected]Nicole Kong GIS Specialist, Assistant Professor Purdue University [email protected]IGIC @ Indianapolis, IN 5/8/2014
Tools for Finding GIS Data on the Internet . Purdue University . Nicole Kong GIS Specialist, Assistant Professor Purdue University [email protected]. Erin Huang Graduate Research Assistant Purdue University [email protected]. IGIC @ Indianapolis, IN 5/8/2014. - PowerPoint PPT Presentation
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TOOLS FOR FINDING GIS DATA ON THE INTERNET Purdue University
“LibGuides is an easy to use Content Management System used by many thousands of libraries worldwide.”----The Most Popular Web Publishing Platform for Libraries
LibGuide BackgroundPurdue University LibGuideHarvest ProgramMethodologyMetadataResultsConclusions and Application
Kong, Ningning Nicole
I can introduce the program here.
HARVEST PROGRAM(1/1 )System Architecture
LibGuide BackgroundPurdue University LibGuideHarvest ProgramMethodologyMetadataResultsConclusions and Application
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
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 )
LibGuide BackgroundPurdue University LibGuideHarvest ProgramMethodologyMetadataResultsConclusions 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 )
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
Kong, Ningning Nicole
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
Kong, Ningning Nicole
Change this to national/global data.
Kong, Ningning Nicole
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
LibGuide BackgroundPurdue University LibGuideHarvest ProgramMethodologyMetadataResultsConclusions and Application
Explore more than 100+ GIS resources at a time User-friendly and time saving Excellent tool for your research and education