An introduction to geoinformatics.

1. GEOINFORMATICS
REVATHY I

2. Geoinformatics refers to two words
Geo: Related to earth Informatics: the science of processing
of data for storage and retrieval.
The art of science and technology dealing
with the acquisition, storage, processing,
production, presentation and dissemination of
geo data is called geoinformatics.

3. The three main tasks of geoinformatics are:
 development and management of databases of geo data
 analysis and modelling of data
 development and integration of computer tools and
software for the first two tasks.

4. It consists of:
 Geographical Information System.
 Remote Sensing.
 Global Positioning System.

5. Geographical Information System (GIS)
It is an information technology which stores, analyses and
display both spatial and non-spatial data.
Elements of GIS:
o Hardware
o Software
o Data
o Live ware
o Data model

6. Remote Sensing (RS)
It is a means of acquiring information about a phenomena or subject or
surface while at a distance from it.
Principle:
Different objects return different amount and kind of energy in
different bands of the em spectrum incident upon it. This property of the
objects depends on the structural, physical and chemical composition,
surface roughness, intensity and wavelength of radiant energy, hence we
can identify various objects by collecting and analyzing returned energy.

8. Global Positioning System(GPS)
It is a system of earth-orbiting satellites transmitting precisely timed
signals which provides direct measurement of position on the Earth’s
surface and the location is expressed in latitude/longitude.
The GPS receiver measures the travel time of signal transmitted from
triangulated satellites. GPS provides an address to every square meter of
the Earth’s surface.

9. Applications of Geoinformatics
Many fields benefit from geoinformatics, including
urban planning and land use management, in-car navigation
systems, environmental modeling and analysis, military,
transport network planning and management, agriculture,
meteorology and climate change, oceanography and coupled
ocean and atmosphere modelling, business location planning,
architecture and archeological reconstruction,
telecommunications.

10. Conclusion
Geoinformatics has become an inevitable tool
in recent times for research ,planning and projections of
various aspects of different fields of study.

11. THANK YOU…