ESA - Eduspace EN - Global Change - Exercise 2 - Creating an animation to understand the evolution of the island

01-Apr-2025

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 2 - Creating an animation to understand the evolution of the island

In this exercise you will create an animation of the vector layers. For a better visualisation, open the image layer 432_2000.tif. This image is a combination of bands 4, 3 and 2 of the Landsat image from 2000 displayed as red, green and blue respectively. The image has been cropped to include only the southern part of the St. Gheorghe coastal area.

Now open, in the same viewer, the theme wl_1856. Ensure the colour of the polygon layer is set to white (as explained in step 9 of section 7.4 of the LEOWorks tutorial). Save the file with the polygon overlain as a jpg in a new folder called “animation” (LEOWorks tutorial step 3, section 3.1), naming the new file “1856”. Repeat this process with each of the other vector layers, until you have the following files in your animation folder: 1856, 1945, 1961, 1984.

Follow the steps outlined in section 6.4 of the LEOWorks tutorial to create an animation of the files you have just created. Experiment with different speeds of animation and select the Active Slider checkbox to see which image is displayed at a time.

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Danube Delta

Introduction Background

Exercises

Exercise 1 - Image inspection and vector drawing Exercise 3 - Change detection analysis using subtract function Exercise 4: Change detection in the mainland part of the delta

Eduspace - Software

LEOWorks 3 Tutorial LEOWorks 3

Eduspace - Download

Landsat images (1984) (zip)Landsat images (2000) (zip)Vectors Animation Danube Delta (MERIS image)

Useful links

Danube Delta Biosphere Reserve ESA MERIS image of the Danube Delta USGS Earth Explorer USGS GLOVIS