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Coastal change Danube Delta change detectionOil spillsDeforestation Bardia National ParkCongo River BasinKameng-Sonitpur Elephant ReserveKilimanjaroRondoniaShillong and GuwahatiIce Antarctica 2003Climate change and glaciersGlacier analysis using radar imageryGlacial retreat in the AlpsGlacier Ice FlowMonitoring of glaciers in the HimalayasRemote sensing of ice and snowUrbanisation CairoCity of KathmanduCórdobaHimalayasKathmandu ValleyLagosVegetation Annapurna Conservation AreaLost in the AndesNgorongoro Conservation AreaNiger Inland DeltaVegetation in South America
| | | | | | | Exercise 1: Inspecting the images (cont'd)
Use the Measure Tool
8. Measure the size of the deforested area.
9. Find one of the largest agricultural fields and measure its area.
10. Can you determine the use of the large and small agricultural fields?
Comparing images from 1989, 1999, and 2009
False colour image of the Rondonia area for 1989
Now that we have become familiar with the area of Rondonia, we can also inspect the other images, from 1999 and 2009, to see if any changes took place in the thirty years between the image acquisitions.
Construct false colour composites of Rondonia_1999 and Rondonia_2009 in the same way you did for Rondonia_1989. Save these images under appropriate names.
11. Based on the images of 1989, 1999 and 2009 you have just constructed, describe the changes between 1989 and 2009.
12. How did the pattern evolve?
13. Measure the size of the deforested area for 1999 and 2009, the same way you did for 1989.
14. Compare these values with the ones you obtained for 1989. What is the main direction of deforestation?
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| | Deforestation in Rondonia IntroductionBackgroundExercises Exercise 1: Inspecting the imagesExercise 2: Quantifying the deforested areaEduspace - Software LEOWorks 3Eduspace - Download Rondonia.zip
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