Okay,
first time I have ever blogged, here goes!
I have
decided to focus initially on map work but more specifically on GIS.
For
starters I feel it's important to get an understanding on what on earth GIS is?
With help from Google and the
Geographical Association a fantastic explanation of GIS is as follows: GIS (Geographic Information Systems) is one
of the fastest growing software applications in the world. GIS is not one
program and different types of GIS serve different purposes: a GIS that tracks
and schedules freight on a route network is different from an environmental
GIS. More than 80% of data collected can be linked to a location on the earth’s
surface, so it is not surprising that GIS and mobile services are taking off.
GIS really puts geography on the map!
There are three elements to any GIS: a digital map, data located on the map,
and a software application (GIS) that links the two together. A simple school
GIS provides display and search facilities for mapped data. More sophisticated
commercial GIS functions include spatial querying and analysis, buffering and
spatial modelling.
For
the purpose of the blog I am giving a ‘grown up’ definition but I understand
that in a classroom a teacher would choose a definition or explanation that is
most suitable for the class.
I sort of
already knew that GIS had something to do with maps and obviously maps have
always been important and useful throughout human history. They represent and
show how features are distributed geographically. Cities, roads, weather, etc
but through computer programs GIS enables people to create, analyse, update and
visualise different sorts of information through maps such as areas of crime,
up to the minute weather locally and globally, and supermarket reward card
information that would be used by retail analysts.
GIS mapping
can involve many different layers of information in one place.
Whilst researching
I came across this activity that could possibly be used in the classroom.
Peeling the Onion (Reading Paper Maps in
GIS Format). This
activity looks at how layers of information form a GIS. Students are asked to
identify maps and GIS layers on these maps.
and
So that’s my first blog. A small introduction to a sizeable
topic!