ESA - Eduspace EN - Global Change - Exercise 1: Inspection of true colour RGB composites

Coastal change

Danube Delta change detection Oil spills

Deforestation

Bardia National Park Congo River Basin Kameng-Sonitpur Elephant Reserve Kilimanjaro Rondonia Shillong and Guwahati

Ice

Antarctica 2003 Climate change and glaciers Glacier analysis using radar imagery Glacial retreat in the Alps Glacier Ice Flow Monitoring of glaciers in the Himalayas Remote sensing of ice and snow

Urbanisation

Cairo City of Kathmandu Córdoba Himalayas Kathmandu Valley Lagos

Vegetation

Annapurna Conservation Area Lost in the Andes Ngorongoro Conservation Area Niger Inland Delta Vegetation in South America

Exercise 1: Inspection of true colour RGB composites

Start LEOWorks and open the two true colour images, tm_03sept1988_band321.tif and etm_30july2010_band321.tif

Study the images.

1. Which glacier lakes still have direct contact with glaciers? Which don’t?

Use the zoom to see the images better.

2. How many pixels is the image in width and height?

3. How large is one pixel?

4. How many kilometres is the image in width and height?


Measurement of glacier length

Now we can measure the length of a large glacier by using the Measure Tool. Select metres as the Measurement unit. Note that you can add different line segments to a total distance, so that you can follow the central line of a glacier.

5. How long is the largest glacier in the images?

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Climate change and glaciers

Introduction Background

Exercises

Worksheet introduction Exercise 2: Animation Exercise 3: Band Arithmetic Exercise 4: GIS Exercise 5: Measurement of area Exercise 6: Multitemporal analysis Conclusions

Eduspace - Software

LEOWorks 4 (MacOS)LEOWorks 4 (Linux)LEOWorks 4 (Windows)

Eduspace - Download

Andes_images.zip GoogleEarth file