foss4g - queen's university...

Lorraine Barry School of Natural and Built Environment, Queen’s University Belfast

@lorraine__barry

Presentation at BelFOSS 27th January 2017

FOSS4G Free and Open Source for Geospatial

Lorraine Barry BelFOSS presentation 2017 @lorraine__barry


Geography is Everywhere: The Importance of Geospatial

Spatial Footprints

54.597528° -5.929871°

Latitude Longitude


Big Social and Economic Data Analytics

Location, location, location


Big Spatial Data Big Spatial Data

Volume, Variety, Velocity

Advertising Insurance


Big Spatial Data Big Earth Data Analytics

New Delhi India 1991 2016

Source: NASA

Environmental and Humanitarian

Movements and Flows


Big Spatial Data

NATS is the UK's leading provider of air traffic control services. Each year it handles 2.4 million flights and 250 million passengers in UK airspace.


Volume – mobile apps, cars, GPS, UAVs, ships, airplanes, IoT devices

Aircraft transmits via Automatic Dependent Surveillance – Broadcast a track every second, 87,000 flights per day in the US, ~ 285 billion points per year

Close to 1 billion tweets per day, many are geolocated – plus facebook, instagram, Google Maps, Uber.......

http://www.ccri.com/

= huge streams of spatial data Big Spatial Data Requires Big Data Methods for Handling, Processing &

Analysis

Big Spatial Data


Big Data Analytics “Big data requires an entirely new set of tools for integration and synthesis” By Michael F. Goodchild, Emeritus Professor of Geography, University of California, Santa Barbara

Volume Variety Velocity

IT advances I of Things

Global sources And disciplines

Connectivity and Real Time

FOSS4G Development


FOSS4G Open Geo Stack

Desktop GIS SDMS Web Map Servers

Development Frameworks and Geospatial Libraries

Open Source GIS Software


Growth of @qgis vs ArcMap from Google Trends. @foss4g overtook proprietary code ~2013! @robinlovelace 13 Apr 2015

https://twitter.com/qgis

https://twitter.com/qgis

https://twitter.com/foss4g

https://twitter.com/robinlovelace



https://twitter.com/robinlovelace/status/587660476827488256


In research undertaken by Manchester Metropolitan University and the University of Salford, more than half (53%) of local authorities that responded to the survey use Open Source GIS Software. http://www.geoconnexion.com/uploads/publication_pdfs/uk-v15i3-046-Local-Governement.pdf

In research undertaken by Manchester Metropolitan University and the University of Salford, more than half (53%) of local authorities that responded to the survey use Open Source GIS Software. http://www.geoconnexion.com/uploads/publication_pdfs/uk-v15i3-046-Local-Governement.pdf

Open Source GIS Software

FOSS4G Bonn


FOSS4G Award



PySAL Python Spatial Analysis Library

•Clustering •ESDA Exploratory Spatial Data Analysis •Spatial Dynamics •Spatial Econometrics •Weights •Computational geometry

Python based software tools for spatial data analysis. Python is an object oriented scripting language that is gaining rapid adoption in the computational sciences. Since 2010, PySAL has been downloaded over 100,000 times

© Copyright 2014-, PySAL Developers; 2009-13 Sergio Rey


Geographical Data Science of Flows and FOSS4G

Data Driven Models

Spatial Interaction Modelling

Regionalization

Geovisualization



•Import libraries pysal, numpy, csv, pandas •Read matrix of flows •While test failed (range of internal flows per created region) then: •Group areas into regions using Maxp algorithm (PySAL) •Merge created output regions to matrix

•Group the pandas dataframe by region •For list of areas within each region sum flows (rows and columns) •Output flow totals per region •Calculate internal flows •Test solution to check if the regions internal flows are within range



Spatial Interaction Modelling

SIM - a technique to evaluate the patterns between volume of flows and the underlying socio-economic tendencies of

the origin and destination zones. (Lloyd et al, 2011)

jointly funded by the Department of Finance and the Department for the Economy


OpenDataNI Challenge – Using Open Data for Education

Environmental awareness outside of the classroom


Open Geo Stack - Leaflet Open Geo Stack - Leaflet

https://ecocommni.github.io/BootstrapTest/schools.html

https://ecocommni.github.io/BootstrapTest/schools.html


NI Science Festival Open Data Mapping Challenge

The Open Data Mapping Challenge Wednesday 22 February, 6:00 pm - 7:30 pm

Free. Booking recommended http://www.nisciencefestival.com/

!

Association of Geographical Information NI


AGI NI

LinkedIN : AGI Northern Ireland Twitter : @NI_AGI

Provides focus for the GI community and users Represents the GI community to policy makers Encourages best practice and innovation Promotes the value and benefit of GI Keeps an eye on emerging markets Promotes training, education and CPD.

Free student membership

https://www.linkedin.com/groups?home=&gid=3966004

https://twitter.com/NI_AGI

Lorraine Barry

Geographical Information Science School of Natural and Built Environment, Queen’s University Belfast

@lorraine__barry

[email protected]


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