 GIM
International (May 2007)
Laser-scanning and
Heritage
Laser scanning has high potential in
a wide range of established and yet to be explored
applications, heritage being one of the more complex.
GPS for Land Subsidence Monitoring
Excessive groundwater extraction in the
Bandung Basin has led to rapid sinking of the water table and
is hypothesised as the main cause of land subsidence.
Product Survey on Geo-databases
This is the fourth and last in the present
form, as part of a series on ‘Spatial Data Management in
Geo-databases’ (RDBMS), since its introduction in 2002.
Space-based Solutions
The
column discusses the recently established United Nations
Platform for Space-based Information for Disaster Management
and Emergency Response – UN SPIDER.
Cadastral Renewal in Finland
In
Finland between 2001 and 2005 a database was developed that
includes a nation-wide cadastre as part of the Land
Information System (LIS).
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GeoWorld
(April 2007)
Return on Investment -- The Key to GIS
Implementation
The benefits of GIS (also known
as "payback," "return on investment (ROI)" and "value
proposition") are maximized through careful planning, design
and implementation—along with some coaching, cajoling and deft
salesmanship.
Bridging Geospatial Technology
Paradigms
The last century’s GIS,
remote-sensing, navigation, CAD and facilities-management
systems, still in wide use, are "islands of
non-interoperability." Much good work can be done with such
systems. But much work has been lost or needlessly repeated,
or the results have been inadequately communicated or not
shared, because those systems are islands.
Building Reality -- Integrate 3-D GIS with
Community Planning
Unlike a comparable
photomontage, a 3-D GIS scene is dynamic, allowing features to
be turned on and off. In addition, the perspective can be
changed at will, allowing users to view a scene from any
location, even from inside neighboring buildings.
Geo-Referencing Is the Cornerstone of
GIS
A variant of the traditional referencing
system uses spherical coordinates based on solid angles
measured from Earth’s center. This natural form for describing
positions on a sphere is defined by three coordinates: an
azimuthal angle in the x,y plane from the x axis, the polar
angle from the z axis and the radial distance from Earth’s
center
(origin).
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GEO: Geoconnexion International Magazine
(April 2007)
Geo-Intelligence Insight
Security and defence work involve vast
computing and image processing. A shortage of skilled image
analysts remains.
Spatial Search
Search engines that depend on text
alone are not enough for security applications. The retrieval
of security related data from the internet via spatial search
engines becomes more effective as geography is
included.
GPS on Ice
Learn
how the Global Positioning System is being used to study
glaciers along with Wireless sensors.
Modelling Avalanches
In Switzerland imaging technologies
are allowing scientists to monitor and model potential
avalanche problems and where they will occur.
Urban Growth
Moscow (capital of Russia) leverages
cadastre with social implications. Rich data availability is
changing planning.
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GISuser (April 2007)
Cities From Space - Landsat Images at your
fingertips!
The Urban Landsat Cities from Space
project is an interesting and informative resource developed by
CIESEN, Columbia University. Using the interactive map viewer, users
can easily select from an en extensive list of major cities around
the World.
Position (April 2007)
Common Symbology
Defining a
national standard for symbology for incident management.
Urban Modelling
The use of 3D
descriptions of the world is changing the way how local governments
operate.
The 3D Industry
The
visualisation industry has taken some surprising turns - but it has
always been long on vision and short on hardware. This may be about
to change.
POB Online (April
2007)
On The Level
Not only is surveying a
small business occupation, it is one in which there is a migration
of employees from firm to firm.
From the Ground Up-RTK Networks: Changing the Way We
Work
Real-Time Kinematic (RTK) GPS technology
provides a productive and accurate method of establishing
three-dimensional positioning in a wide variety of surveying and
mapping applications.
Back To Basics-Plant a Tree NOW!
The
investment we make in education now will pay off tomorrow, and in
five years, and in 20 years and forever. Surveyors of the future
will benefit from our “education plantings” because our work today
will be better.
Traversing The Law-Riparian Boundaries
Our first stop is a consideration of the projection
of the upland owner’s boundary lines into the navigable waters. The
purpose of the lines, no matter what name they go by, is manifold.
ASM (April 2007)
Mapping Borders
It seems that
tension is building in the bilateral relationship between
Indonesia and Singapore. The major cause for concern is the
issue of the maritime boundaries between the two neighbouring
states, following coastal reclamation by Singapore.
Waveform Digitiser
New
Zealand Aerial Mapping has recently commenced operation of a
new Optech ALTM airborne laser scanner. The unit has an
integrated waveform digitiser which records the complete
energy return detected by the ALTM sensor.
Errors and Google
One
of the most difficult and perplexing problems facing Google at
the moment is how to update and correct its maps.
Orangutan Conservation
GPS systems have been used to survey land for
a wildlife sanctuary in
Borneo.
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