Presentation by Wenwen Li during the afternoon sessions on Day 2, June 25 at the EarthCube All-Hands Meeting

1. PolarHub: A Global Hub for
Geospatial Service Discovery
Wenwen Li
School of Geographical Sciences and Urban Planning
Arizona State University
EarthCube All Hands Meeting
06-25-2014

2. Building a Service-Oriented Polar CI Portal
to Support Sustained Polar Sciences
• Funded by National Science Foundation (NSF)
• Objectives:
– Objective 1: Establish a large-scale web crawler to
improve the accessibility of Big Polar Data
– Objective 2: Monitoring Data and Service Quality
to Improve Portal Usability
2

3. PolarHub Features
• Dig into the deep Web to extract data of
interest;
• Multi-task, multi-user, multi-thread support to
the crawling tasks;
• A pattern-matching based crawling algorithm;
• A portable client-server communication
mechanism for enhanced asynchronous
processing

4. PolarHub
• Target:
– Identify 40k OGC web services;
– Extend to support discovery of other type of earth
science data;
– Bridge with other existing crawling/CI portal
systems

5. PolarHub
• http://polar.geodacenter.org/polarhub
• User manual:
http://polar.geodacenter.org/polarhub/view/hel
p/help.html

6. NSF/ASU PolarHub – ACADIS Gateway

7. Overlaying
boundingbox
Metadata
list

8. Click to view an ACADIS metadata from PolarHub