In this topic the detailed introduction related to remote sensing is described.

1. 1
Lectures (GIS and RS)
Topic
Presented by Rehana Jamal
(Geometiciation, Pioneer GIS Specialist, Geographer)
GIS Trainer, GIS Consultant, Advisor in SAWiE, Lahore
Visiting Faculty of PMAS Arid Agriculture University, Rawalpindi
Exe-Coordinator/Visiting Faculty of Pakistan Institute of management, Lahore
Visiting faculty of Lahore College for Women University(LCWU)
Exe-Research Officer/Lecturer, University of the Punjab, Lahore
studentsdatafiles@gmail.com
Introduction to Remote sensing
Lecture # 3
 What is Remote sensing(RS)?
 RS is a spatial data acquisition technique
 Sources of Remote sensing data

2. 2
What is Remote sensing?
Remote sensing is a
technique of collecting
information from a
distance.
Remotely sensed data
The data collected from
a distance

3. 3
“Remote Sensing (RS) is the
science and art of acquiring
information about material
objects, area, or phenomenon,
without coming into physical
contact with the objects, area,
or phenomenon under
investigation”
What
is
Remote sensing?

4. 4
Agronomist: forecast the agricultural period
An urban planner: identify areas illegally built
An Engineer: determine optical configuration( terrain
obstacles of buildings) for siting relay stations for
Telecommunication companies
Mining Engineer: explore the area to map the surface
mineralogy
Environenlist: do future planning, air pollution & control,
disaster management, forest fires management, managing natural
resources, wastewater management, oil spills and its remedial
actions etc.
Climatologist: identify the parameters including sea currents,
meteorology, energy interactions between the land and water
Remote sensing is a spatial data acquisition technique

5. 5
Remote sensing is the acquisition of information about some
feature of interest without coming into direct contact with it.
Popular forms of remote sensing used in the environmental
sciences are images of the Earth’s surface acquired from sensors
mounted on airborne and space borne platforms.
Remote sensing has been used for mapping the distribution of
forest ecosystems, global fluctuations in plant productivity
with season, and the three-dimensional (3D) structure of forests.
Remote sensing as a spatial data
acquisition technique in Forestry
Source: https://www.sciencedirect.com/science/article/pii/S2590332220302062

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Margala National Park

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8. 8
Sources of Remote sensing data in the applications of forestry
1. Photographic (Air)
2. Scanning (Air & Space)
3. Radar (Air & Space)
4. Lidar (Laser) (Air)
5. Videography (Air)
The applications of the following remote sensing
systems in forestry were reviewed.

9. 9
 www.google.com
 http://en.wikipedia.org/wiki/Aerial_photography
 https://www.sciencedirect.com/science/article/pii/S2590332220302062
 Book:” Principles of Remote sensing” edited by Lucas L.F. Janssen(Ch#1)
 http://quest.arc.nasa.gov/space/teachers/rockets/history.html
Topic: Introduction to RS
References