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December, 2007
Refereed Papers
Leahy, F.J. (2007)
Locating the Plant Camp of the Burke and Wills Expedition,
Journal of Spatial Science, Vol. 52, No. 2.
Skyy, T.-K., Stimson R., Chhetri, P. & Western, J. (2007)
Mapping Quality of Life in the South East Queensland Region with a
Web-Based Application, Journal of Spatial Science, Vol. 52, No.
2.
Taranto, T. (2007) Using Spatial Information to aid
Decision-Making: Case Study of Developing a Participatory Geographic
Information System for Regional Tourism Planning, Journal of
Spatial Science, Vol. 52, No. 2.
Zhang,
C., Li. W. & Zhao, T. (2007) Geospatial Data Sharing Based on
Geospatial Semantic Web Technologies, Journal of Spatial Science, Vol. 52,
No. 2.
Kumar, L. (2007) A comparison of reflectance
characteristics of some Australian eucalyptus species based on high
spectral resolution data – discriminating using the visible and NIR
regions, Journal of Spatial Science, Vol. 52, No. 2.
Bae, K. –H., Belton, D. & Lichti, D. D. (2007)
Pre-processing procedures for raw point clouds from terrestrial
laser scanners, Journal of Spatial Science, Vol. 52, No. 2.
Featherstone. W. E. (2007) Augmentation of AUSGeoid98 with
GRACE satellite gravity data, Journal of Spatial Science, Vol.
52, No. 2.
Professional Paper
Hu,
Y.-H. & Ge, L. (2007)
The Design and Development of a
Geo-referencing and Browsing System for Geospatial Web Content,
Journal of Spatial Science, Vol. 52, No. 2.
Abstracts
Refereed Paper
Locating the Plant Camp of the Burke and Wills Expedition
F.
J. Leahy
Department of Geomatics
University of Melbourne
fjleahy@unimelb.edu.au
Abstract
William John Wills was appointed “Surveyor and Astronomer” to the
Victorian Exploration Expedition (now popularly known as the Burke
and Wills Expedition) which departed from Melbourne on Tuesday 21st
August 1860 with a party consisting of 17 men, 26 camels, 28 horses
and 6 wagons. By April 1861, the forward party of 4 men, were
struggling back from the Gulf of Carpentaria on short rations and
with failing camels. To lighten loads, Wills “planted” (for later
recovery) some equipment, including his astronomical instruments.
This paper reports on an analysis of Wills’ navigational records
with the aim of locating the site Wills named “Plant Camp”. The
investigation has run for some 20 years without detailed
publication. The reason for publishing now arises from a recent
discovery, at the site identified as Plant Camp, of a small number
of items that give every appearance of being part of the equipment
planted by Wills.
Mapping Quality of Life in the South
East Queensland
Region with a Web-Based Application
T.-K. Shyy
R. Stimson
UQ Social Research Centre
The University of Queensland
Brisbane, Queensland 4072
t.shyy@uq.edu.au
r.stimson@uq.edu.au
P. Chhetri
School of Management
RMIT University
GPO Box 2476V
Melbourne, Victoria 3001
p.chhetri@rmit.edu.au
J. Western
School of Social Science
The University of Queensland
Brisbane, Queensland 4072
j.western@uq.edu.au
Abstract
This paper describes the development of a prototype Web geographical
information system for mapping aspects of quality of life derived
from a survey of residents in the Brisbane-South East Queensland
conducted in 2003. Using cluster analysis, “downshifters” – people
who voluntarily make a long-term change in their lifestyle following
the decision to “downshift”, other than planned retirement, which
reduces their income - are categorised. Principal component analysis
was used to examine the performance of statistical local areas
against three perceived components of neighbourhood attractiveness -
aesthetic, amenity and social interaction – that underlie the
residential location decision choice of survey respondents. Spatial
distributions of downshifters and neighbourhood attractiveness can
be visualised with a Web browser.
Using Spatial Information to aid Decision-Making: Case Study of
Developing a Participatory Geographic Information System for
Regional Tourism Planning
T. J. Taranto
CSIRO Division of Marine Research
233 Middle St. Cleveland 4163
Queensland
Australia
tom.taranto@csiro.au
Abstract
Electronic interfaces enable spatial information acquired from many
sources to be aggregated and visualised to meet end user
requirements. Any associated group decision-making, however, often
requires tedious discussion, debate, negotiation and compromise
before participants reach a mutually agreed decision. This paper
examines at the integration of spatial information to assist the
decision-making process using a participatory geographical
information system (PGIS) developed for regional tourism planning in
Queensland, Australia. The PGIS facilitates group consultation and
decision-making through a transparent process of visualising areas
valued by participants, either individually or combined. It
aggregates both quantitative and qualitative spatial information
using multi-criteria evaluation and standardised geometric and
algebraic mean information layers to aid discussions and
decision-making. The paper demonstrates how the PGIS provides a
versatile tool for individual analysis, heuristic exploration or to
facilitate a cooperative consultation environment. In the
consultative process, it is assumed that understanding other
people’s values and identifying areas that concur or conflict are
crucial for participant collaboration, to synergise and to reach a
mutually beneficial outcome.
Geospatial Data Sharing Based on Geospatial Semantic Web
Technologies
C.
Zhang
W.
Li
Department of Geography
Kent
State University,
Kent,
Ohio 44242, USA
czhang2@kent.edu
weidong6616@yahoo.com
T.
Zhao
Department of Computer Science,
University of Wisconsin, Milwaukee, USA
tzhao@uwm.edu
Abstract
Geospatial data sharing is a concern in geospatial science because
of the heterogeneity of existing geographical information systems.
This study aims to examine the use of Geospatial Semantic Web
technologies such as ontology, web services and the service-oriented
architecture for enabling disparate heterogeneous legacy GIS to
share and integrate information in a cost effective way to reduce
spatial data duplication. A framework based on the Geospatial
Semantic Web technologies is proposed in this study. Experimental
results from an implemented prototype show that the proposed
framework allows searching and accessing geospatial data and
services at the semantic level based on their content instead of
keywords in the metadata.
A comparison of reflectance characteristics of some Australian
eucalyptus species based on high spectral resolution data –
discriminating using the visible and NIR regions
L. Kumar
Ecosystem Management
University of New England
Armidale NSW 2351
Australia
lkumar@une.edu.au
Abstract
Laboratory measurements of the spectral reflectance of leaves from eleven
common eastern Australian eucalypts were made over the 400-2400 nm range
using an Infra-Red Intelligent Spectroradiometer (IRIS) spectroradiometer.
Spectral differences among the different species were studied in terms of
reflectance (550 nm, 630 nm, 800 nm, green peak maximum reflectance and
chlorophyll well maximum absorption) and wavelength positions (red edge,
green peak maximum reflectance, chlorophyll well maximum absorption and
red edge inflection point). This paper discusses the differences between
the species in the visible and red-edge regions only. Results indicate
that, while spectra from different eucalyptus species appear similar in
terms of shape and positions of absorption features, statistically
significant differences do exist. These differences are in terms of
absolute reflectance, depths of absorption features and the relative
position of change in terms of the wavelength.
Pre-processing procedures for raw point clouds from terrestrial
laser scanners
K.-H. Bae
D. Belton
D. D. Lichti
Western Australian Centre for Geodesy and The Institute for
Geoscience Research,
Department of Spatial Sciences
Curtin University of Technology
GPO Box U1987, Perth, WA 6845
Australia,
Cooperative Research Centre for Spatial Information (CRC-SI),
Australia
K.H.Bae@curtin.edu.au
D.Belton@curtin.edu.au
D.Lichti@curtin.edu.au
Abstract
The use of geometric primitives such as geometric curvature,
variances of curvature and surface normal vectors as pre-processing
methods for edge and boundary detection in three-dimensional (3D)
unorganised point clouds is proposed. These processes are important
for high-level procedures such as registration, segmentation,
classification and detection of specific shapes or objects in point
clouds. To demonstrate the effectiveness of these methods, we
present examples of tree detection and segmentation of terrestrial
laser scanner point clouds.
Augmentation of AUSGeoid98 with GRACE satellite gravity data
W. E. Featherstone
Western Australian Centre for Geodesy & The Institute for Geoscience
Research,
Curtin University of Technology, GPO Box U1987, Perth, WA 6845,
Australia
W.Featherstone@curtin.edu.au
Abstract
The AUSGeoid98 gravimetric quasigeoid model of Australia is
augmented in the medium- and long-wavelength bands by removing its
EGM96 basis and replacing this with GGM02C and EIGEN-GL04C, whose
long wavelengths are derived from Gravity Recovery And Climate
Experiment (GRACE) satellite gravimetry. No significant improvement
over AUSGeoid98 is seen: agreements with GPS-levelling change from
±28 cm to ±27 cm (acknowledging distortions in the levelling);
agreements with astrogeodetic vertical deflections do not change,
remaining at about ±1 arc-second. While this remove-replace
approach is not theoretically exact, it is likely that errors in the
terrestrial gravity data are contaminating these combined GRACE
solutions in the medium wavelengths over Australia.
Professional Paper
The Design and Development of a Geo-referencing and Browsing System
for Geospatial Web Content
Y.-H. Hu
L.
Ge
School
of Surveying and Spatial Information Systems,
University of New South Wales
Sydney, Australia
you-heng.hu@student.unsw.edu.au
l.ge@unsw.edu.au
Abstract
With the advent of the World Wide Web (WWW), the way people publish,
retrieve and synthesise information has totally changed. The Web is
a hypertext system consisting of a huge amount of information which
has very different forms. The concept of geospatial Web content
emphasises the geospatial context of online information. Due to the
continued explosive increase in the volume and complexity of
geospatial Web content, it is necessary to have some mechanisms
through which content can be systematically organised depending on
their geospatial characteristics, and can be efficiently accessed
and interrelated. This paper presents the design and development of
Geo-coded Spatial Navigation System (G-SNS), a geo-referencing and
browsing system that aims to provide an integrated user interface
for navigation and browsing of geospatial Web content. Three case
studies based on the G-SNS architecture in different application
domains are developed and described: 1) Local News Reader
categorises online news stories based on their geospatial context,
2) Web Sites Finder enables users to find Web sites that are close
to users’ current locations,
and
3) Property List Map provides users with a map-based interface for
searching and reviewing of real estate properties. |
