Lecture on Introduction to ArcGIS Software

73 Pages·2016·7.35 MB·English

by  N. Kiran Kumar

Ocean Teacher Global Academy (OTGA)
Training Course on
‘Marine GIS for Operational Oceanography’
January 18-22, 2016
N. Kiran Kumar
[email protected]
International Training Centre for Operational Oceanography (ITCOocean)
ESSO-INCOIS, Hyderabad, India
International Oceanographic
Data and Information
Exchange
GIS and maps
What do you use maps for?

What do you use GIS maps for?

Maps and layers
A GIS uses layers to characterize and describe our

world
Describing our World
We can describe any
element of our world
in two ways:
Attribute
Information:
Spatial Information:
What is it?
Where is it?
Species: Oak
Height: 15m
Age: 75 Yrs
51°N, 112°W
What types of geographic data do you work with?
Vector model
Geographic features are most commonly
represented as
points

lines

polygons

RReettaaiill ssttoorreess SSttrreeeettss PPaarrcceellss
PPooiinnttss LLiinneess AArreeaass//PPoollyyggoonnss
Vector data organization
Stored as feature classes
Attributes for points
Same geometry

Same attributes

Points
Lines
Shape field: Stores
feature class
geometry
Polygons
Raster data model
Used to represent

imagery

digital elevation models

other thematic data

Raster data organization
Matrix of cells

Cell values

 measurements
 counts
 statistical values
 codes
(4,5)
ArcGIS – a long history
A Pervasive System for Using Maps & Geographic Information
10.3.1
ArcGIS
10.x
10.3
10.2 2015
ArcGIS 10
10.1
10.0
2009
2001
1995
1996
1982
1999