earth observation by remote sensing dr nigel trodd coventry university
TRANSCRIPT
Earth Observation by Remote Sensing
Dr Nigel Trodd
Coventry University
the role of remote sensing in Earth observation
Aim… to understand
& objectives… by identifying & exemplifying
characteristics of remote sensing evaluating strengths &
weaknesses using case studies of applied remote sensing
What is remote sensing? …the acquisition of physical data of an
object without touch or contact (Lintz & Simonett 1976)
…the science and technology to derive information about the Earth’s land, sea, ice & atmosphere using electromagnetic radiation reflected or emitted from an object or phenomena
What is Earth observation by remote sensing?
Earth observation by remote sensing
Unique selling point: 1 Area of coverage
Unique selling point: 2 Area of coverage Repetition of
measurement
Unique selling point: 3 Area of coverage Repetition of
measurement Imaging the
inaccessible
Unique selling point: 4 Area of coverage Repetition of
measurement Imaging the
inaccessible Viewing the
invisible
Unique selling point: 5 3D
Unique selling point: 5 Area of coverage Repetition of
measurement Imaging the
inaccessible Viewing the
invisible DigitalUnique selling point: 6
Digital
Where in the world?
Same
country, which city?
Remote sensing:a unique perspective
Area of coverage Repetition of
measurement Imaging the
inaccessible Viewing the
invisible 3D Digital
multiscale
multitemporal
multi…
multispectral
multidimensional multipurpose
Case study: Yangtze delta
ENVISAT MERIS 2005
Case study: Yangtze delta
Landsat MSS 1979
Landsat TM 1993
Agricultural expansion
Industrial development
Natural fluctuations
Case study: Mozambique Inundation of coastal floodplain 99/00 and 00/01
associated with ENSO events
SRTM DEM Mozambique
Validating theories of biogeomorphology
Case study: Grand Canyon
Conclusion
Earth observation by remote sensing is a multifaceted technique
Case studies demonstrate that remote sensing is an attractive tool to characterise terrain and quantify geomorphic processes & landscape dynamics