Geomatics, the handling and processing of information and data
about the Earth, is one geoscience discipline that has seen major
changes in the last decade, as mapping and observation systems
become ever more sensitive and sophisticated. This book is a unique
and in-depth survey of the field, which has a central role to play
in tackling a host of environmental issues faced by society.
Covering all three strands of geomatics - applications, information
technology and surveying - the chapters cover the history and
background of the subject, the technology employed both to collect
and disseminate data, and the varied applications to which
geomatics can be put, including urban planning, assessment of
biodiversity, disaster management and land administration. Relevant
professionals, as well as students in a variety of disciplines such
as geography and surveying, will find this book required
reading.
This rapidly developing field uses increasingly complex and
accurate systems. Today, technology enables us to capture geo-data
in full 3D as well as to disseminate it via the Web at the speed of
light. We are able to continuously image the world from space at
resolutions of up to 50 cm. Airborne LiDAR (laser surveying)
sensors can be combined with digital camera technology to produce
geometrically correct images of the Earth's surface, while
integrating these with large-scale topographic maps and terrestrial
as well as aerial images to produce 3D cityscapes that computer
users can explore from their desktops.
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