Generalization: The choosing of
features and the method of their
depiction in order to draw a clear and meaningful
map:
aspects of generalization include
aggregation, conversion,
displacement
dissolution,
enhancement, selection,
simplification, and smoothing. The degree and kind of
generalization should be consistent throughout any given map.
Geographic coordinate
system: The grid
system of latitude and
longitude.
Geographic Information Technologies (GIT):
a set of computer tools (hardware and software), techniques and
geographic data used to collect, store, edit, query, manage,
analyse and/or display geographically referenced information in
order to map phenomena, understand spatial relationships among
phenomena, derive new information, and facilitate geographic
problem solving.
Geographic information systems (GIS), the
global positioning
system (GPS), and satellite/aircraft remote sensing and
imaging are examples of geographic information technologies used
for digital mapping, spatial analysis, and other applications
requiring location-based information and analysis (Source
Jefferson Fox, 2006)
Georeferenced:
Refers to a map or photo that has been geographically corrected,
so that every point on it shows
absolute location. For
example, air photos and satellite images are
georeferenced to correct for scale distortions inherent in the
process of collecting data through
remote sensing.
Geotagging is the process of
adding geographical identification
metadata to various media such as photographs, video,
websites, or RSS feeds and is a form of geospatial metadata.
This data usually consists of latitude
and longitude
coordinates, though it can also
include altitude, bearing,
accuracy data, and place names. (Source Wikipedia)
GIS (Geographic
Information System): A
computerized system for the collection, storage, and retrieval
of geographic data.
GPS (Global
Positioning System): A system of
artificial satellites and ground units that enables a
user with a portable receiver to determine
absolute locations with
good accuracy.
Gradian (also
called “gon’ or ‘grade’): A unit
of angular measure, an alternative to degrees. There are 400
gradians in a circle (100 in a right angle), so one gradian =
0.9°.
Graph paper: Paper printed with a
pattern of intersecting lines parallel to the edges and at fixed
increments (such as 5 mm or 1 mm).
Graph scale: A graphic
representation of map scale proportions using a bar and
numbers to indicate distance.
Grid:
A pattern or network of crossing lines (such as on a
map)
by which a position may be determined.
Grid
north: North as indicated by the
north meridians of a particular
map projection.
Ground map: A large and temporary
map
(perhaps 10mx10min size), constructed outside on the ground
using leaves, rocks, beans, wood, reeds, or other materials, or
created indoors using hats, shoes, rope, pieces of paper, etc.
