Transcript Geo data services for UK academia

Digimap:
first year (and a bit)
report
Dr Hugh Buchanan
User Support Co-ordinator,
EDINA Geo-data services
Who are EDINA?
• one of 3 JISC-funded National Data Centres for UK
tertiary education
• part of University of Edinburgh Computer Services
• provide over 20 information services to UK tertiary
education
• substantial experience in handling geospatial data
• UKBorders has been providing a geographic
boundary data service since 1994
Location of EDINA in UK Higher Education
commercial
data
providers
HE funding councils
Datacentres
EDINA - Edinburgh Data
and Information Access
institutional
access
end user
What is Digimap?
• Digimap is a JISC-funded, web-based mapping
service
• created & hosted by EDINA with support & training
jointly with MIMAS
• access to Ordnance Survey map data via easy-touse, map-based interface:
– creating maps on-screen
– printing high quality maps
– downloading map data
• began as a project in 1996 in the JISC Electronic
Libraries (eLib) programme
User Community
Simple Browsers
Java Applet
EDINA Digimap
Digimap Carto
• view/print fixed-scale maps
• used by all users
On-screen
Data
• meets
needs of 60% of users
mapping
downloading
• fortool
novice users/low support
costs
tool
• data extraction - for GIS users
• meets
needs of
25%
of users
Available
from
January
2000
Java-enabled
(image
or vector
• customisable
high
quality
graphics)
mapping/printing (e.g. EPS)
• used by 40% of users
• for users who are/become skilled
Available from May 2001
Digimap Server
OS Data
All map images © Crown copyright
Data available through Digimap
Land-Form
Strategi®
• 1:250,000
• national coverage
PANORAMA™
• 1:50,000
• national coverage
• contours and DTM
Meridian™
Land-Line.Plus®
• 1:50,000
• national coverage
• 1:10,000 - 1:1,250
• 30% of national
coverage
1: 50,000 Place-names Gazetteer - 250,000 place-names
Annual updates
and now …...
1:50,000 Colour Raster
• from September 2001
• national coverage of
1:50,000 raster data
How we have made the data usable ...
© Crown copyright. Ordnance Survey
Who is using Digimap? - institutions
Subscribers by size band
• UK Higher Education institutions
Large
• 163 eligible institutions
64%
• 51 institutions currently
Small
8%
subscribe
Medium
• annual institutional subscription
28%
is size dependent:
£1,750 to £4,750 per annum
• institution subscription entitles all staff and
students to use service for teaching and research
Who is using Digimap? - users
Users by category
• undergraduates are largest group
Undergraduate
49%
Staff
27%
Users by subject area
Biotechnology and
Biological Sciences
4%
Medical
Sciences/Physics
1%
Arts and Humanities
11%
Economic and Social
Sciences
22%
Postgraduate
24%
Information Services
11%
Engineering and
Physical Sciences
20%
Natural Environment
13%
Geography
18%
• 82% of users are not geographers
Supporting Digimap
• extensive online help and guidance
• institutional Site Representatives
– EDINA provide extensive training
– training materials available for Site Rep's use
• Site Reps can create Help pages specific to their
institution
• EDINA helpdesk handles around 100 Digimaprelated calls per month
• integration with other resources within institution
Growth in user numbers
Monthly registrations
900
6000
800
5000
700
600
4000
Total Users
Monthly Registrations
• number of registered users has
doubled in this academic year
(currently 5,000)
500
3000
400
300
2000
200
1000
100
Where Digimap users heard of the service
From my site
representative
7%
New Registered Users
h
M
ar
c
Ju
ly
Au
gu
st
Se
pt
em
be
r
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ct
ob
er
No
ve
m
be
r
D
ec
em
be
r
Ja
nu
ar
y
Fe
br
ua
ry
Ju
ne
M
ay
Ap
ril
0
h
0
From a poster
2%
M
ar
c
From a friend
3%
Ja
nu
ar
y
Fe
br
ua
ry
Via the Internet
3%
Total Registered Users
From a lecturer
35%
From a colleague
12%
• users generally learn of Digimap
by word of mouth
From the
university library
16%
Other
22%
Some uses of OS data by Digimap users...
Archaeology
Architecture
Business
centres
Civil Engineering
Earth Sciences
Economics
Electronics
Environment Mgt
Geography
History
Law
Mathematics
Medicine
Plant Sciences
Social Policy
Water Mgt
Zoology
Spatial relationships of prehistoric ritual monuments
Model making and urban planning
Optimising location of e-commerce distribution
Locating hydrogen plant for fueling buses
Tectonics and landscape evolution
Impact of road noise upon property prices
Teaching position location using mobile radio
Effect of countryside stewardship on black grouse
Linking weather station and road accident data
The feeding of Cromwell’s New Model Army
Mapping and modelling crime in Cardiff
Modelling rainfall with topographical variables
Pollution monitoring for Public Health Sciences
Biodiversity of urban gardens
Town centre boundaries for statistical monitoring
Pipe bursts in water distribution systems
Mapping of water vole distributions
(updated to February 2001)
Case study - coastal quarry design
• coastal quarry feasibility design exercise
• Surfer software package
• students use Digimap data to produce 3D visualisation of
the existing topography
• model used to show the quarry site during and after
extraction
• students also calculate the volume of extraction, i.e. the
planned capacity of the quarry
© Crown copyright. Ordnance Survey
Case study - positioning of early Norman
castles
• to test reasons why early
Norman castles were built
in particular places
• examine the viewshed from
the castles, that is, what
can be seen from the castle
• also the proximity of
castles to lines of
communication such as
roads and rivers
• more rigorous than has
previously been done
• comparing groups of castles
in south-eastern Midlands,
Cheshire and north Wales
© Crown copyright. Ordnance Survey
Case study - planning impact study
• class practicals examining
the impact of a planning
proposal upon the local
area
• supplement Digimap data
with environmental, socioeconomic and property
valuation information, and
own data collected during
field visits.
• students write and report,
and produce annotated
maps to support their
arguments
© Crown copyright. Ordnance Survey
Case study - crime pattern analysis
• burglary repeat
victimisation
• a repeat doesn't have to
occur at the same address
• criminals may build mental
maps of the properties they
burgle
• Land-Line data used to map
Merseyside police recorded
crime data against
homogenous housing types
• using Mapinfo and Arcview
© Crown copyright. Ordnance Survey
Mapping activity
250,000 screen maps created
50,000 paper maps created
mapping usage follows undergraduate activity
Land-Line.Plus is numerically dominant
Screen mapping by product January 2000 - March 2001
35000
30000
25000
Screen Maps
•
•
•
•
20000
15000
A
10000
5000
0
Jan - Mar
Apr - Jun
Landline
July - Sep
Meridian
Panorama
Oct - Dec
Strategi
Jan - Mar
Data downloading by Ordnance Survey product
• 79,000 tiles of data downloaded
• data download usage follows postgraduate / staff activity
• Land-Line data very predominant
Tiles downloaded by product: April 2000 - March 2001
14000
12000
Tiles downloaded
10000
8000
6000
4000
2000
0
Apr - June
July - Sep
Land-line
Meridian
Oct - Dec
Panorama Contours
Panorama DTM
Jan - Mar
Strategi
Activity by different user types
Activity per user by status January 2000 - March 2001
200.00
180.00
160.00
120.00
100.00
80.00
60.00
40.00
20.00
t
he
s
C
M
ap
D
re
e
n
ow
nlo
a
m
ap
d
s
0.00
Sc
Index (Base Staff = 100)
140.00
Digimap Activity
Site rep
Staff
Postgraduate
Undergraduate
Future developments - Ordnance Survey data
• Meridian product being re-launched in 2001
–
–
–
–
hydrology and woodlands added
additional attributes on road network
digital terrain model incorporated
annual update cycle
• OS sample data
– previously available to academia through separate deal
( " the CHEST data " )
– wide range of products, small number of tiles
– Digimap products, plus ….
MiniScale, 1:50,000 raster, Boundary Line, 1:10,000 raster,
Address-Point, Land-Form PROFILE, OSCAR
Additional OS products - sample coverage
MiniScale
Land-Form PROFILE
1:50,000 raster
1:10,000 raster
All images © Crown copyright. Ordnance Survey
Boundary-Line
ADDRESS-POINT
OSCAR
Future developments - aerial photography
• more detail in later session
• ‘Cities Revealed’ data from
GeoInformation Group
• covers major GB cities
(19,000 km²)
• full colour imagery, 25 cm
resolution, photoscale
1:7,000 - 1:18,000
© The GeoInformation Group, Cities Revealed
Future developments Ordnance Survey County Series
• EDINA had hoped to add
historical data to Digimap
• not possible in current
development programme, due
to technical issues
• EDINA will reassess this summer
• raster images from
OS/Landmark Information
Group (tiff, 300-dpi)
• maps in five epochs [18431893, 1891-1912,1904-1939,
1919-1943, 1945 onwards]
• available at scales of 1:2,500
and 1:10,560, from the First
Series through to the Fourth
Future developments - locally licensed data
• Digimap infrastructure can
deliver other datasets
• pilot service for Edinburgh
University users only
• XYZ Edinburgh street map
• Cities Revealed Edinburgh
data
• terms and conditions
separately negotiated
© XYZ Digital Map Company Ltd 2000
Future developments - functional
improvements
• Digimap interface is being continuously improved
• select map location
by gazetteer search
– uses gazetteer
from Strategi data
• improved feature selection
on mapping interface
– select all, clear all buttons
Improved symbolisation - Strategi
• relief shading
• improved road labelling
• text colour differentiation
Map images © Crown copyright. Ordnance Survey
Improved symbolisation - Meridian
• use attribute values to
control cartographic
display
• road labelling
• roundabouts
• motorway junction labels
• trunk roads
• index contours
Map images © Crown copyright. Ordnance Survey
Digimap Carto
• release date
29 May 2001
• flexibility to
– combine products
– set map scale
– set output map
size and shape
– locate map by
coordinate or
gazetteer
Development activities
• Digital National Framework
– major OS programme to redevelop large scale database,
and hence products
– offers substantially greater flexibility in data use
– EDINA are tracking developments and liaising closely with
OS (data) and JISC (funding)
• geo-related projects - more later in day
– geo-data browser for the HE community
– geo-crosswalk
– e-Map Scholar
User feedback
• EDINA gather user views on Digimap, and feed
these back to Ordnance Survey and JISC
• most common data requests are for:
– removal of Land-Line.Plus usage restrictions
– additional data products
– simplified registration processes
• data requirements survey
– reported in later session
• NOW!
Digimap - keeping in touch
• EDINA Digimap web page:
http://edina.ac.uk/digimap
• EDINA web site: http://edina.ac.uk
• Email: [email protected]
• Tel: 0131 650 3302
Fax: 0131 650 3308