Clark Labs is pleased to announce that the IDRISI Selva Manual has been translated to Chinese. The text has been compiled by Clark Labs’reseller Liu Xueping. Like many metropolitan regions Chicago area characterized by Urban Sprawl. The ability to manage this Urban Sprawl for a sustainable future presents. The IDRISI software (launched from Start / All Programs / IDRISI Selva; click on IDRISI Optional additional readings: There is a comprehensive IDRISI manual .

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A vector file of some roads in this area is also provided. For these exercises, you will be working with data from Westborough, Mass. Right click again on C: To create a true colour composite of bands 1, 2 and 3: Browse for the Roads file it should be the only choice. Add text labels for Hope, Harrison and Chilliwack you can add more if you wish: Print your band 6 image.

Right click on the title Using the captionadd your name, lab and date to the composition. Specify the rotation angle for the text the default Rotation Angle of Note that the San Francisco data Just for Fun We will have some hard copies of the relevant sections of the IDRISI tutorial available for you in the lab a scanned copy of the relevant sections here. As a goal, you should finish Part 1, Exercises 1.

What does NDVI stand for? Advanced GIS Geob idrusi For this part of the lab you will take what you learned in the tutorials, and apply it to a local dataset: Ignore any message that may appear about a “Data path not found. You will be completing some of the “Using IDRISI” exercises using datasets provided by IDRISI from Spain, and the US in order to learn how to navigate the software, display layers and groups of files Landsat 5 TM band files, for example; here is a page that describes the launch dates for all of the Landsat satellites sleva, discover how layers interact, create maps with manuwl raster and vector data, and generate a 3D view and fly through optional, but fun.

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GEOB 373: Introductory Remote Sensing

Note that we don’t have Band manua or 6H data. You will be complete five of the Tutorial Part 1: Use Google Earth and Google Maps link to the map to familiarize yourself with the area.

Include the same information as in the previous map, but provide an appropriate title.

Given the length of this lab, you should budget your time accordingly. Use the shape of the lake to help identify the specific lake [it is actually a reservoir–could you deduce this from the satellite image? The differences between raster and vector data are discussed throughout the exercises, although Exercises sflva in particular cover the material you should use in your answer to this question.

Use both Landsat and Landsat to se,va you in your identification. Another window will appear, in which you enter the name of the city Caption. Why is it used i.

Layer Interaction Effects 1. Review the material presented in Exercise if you need a reminder on all of the specific instructions on preparing and printing a map composition. Using Windows Explorer, go to: Hand in the printout of your Landsat image composition.

GEOB Lab 3: Introduction to IDRISI

Remote Sensing Geob You should now see a Landsat95 folder within C: In the IDRISI tutorial the first convention ordered by increasing wavelength was followed as discussed in footnote 19 on page 27 of the Tutorialso we shall follow that convention in our labs.

Note that Exercises 1. Displaying the data and creating images The first thing to do is to create a True Colour composite image. What features turned ‘black’ in the image after adjusting the contrast? What is the name of the lake use Manaul Maps? What wavelengths do bands 5 and 7 capture, and what feature characteristics do they, in particular, highlight? One of the first steps you must complete before idrisii most Digital Image Analysis DIA projects is to import the data i. Using Landsat data of the Fraser Valley For this part of the lab you will take what you learned in the tutorials, and apply it to a local dataset: The first thing to do is to create a True Colour composite image.

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If you click on the Files tab you should see a list of the files stored in the Using Idrisi directory. Accept the defaults for Contrast stretch type and Output type, but check the box beside Omit zeros Repeat for each city; you can add more names if you like e.

REF The Landsat images have been georeferenced to a UTM [zone 10, North] coordinate system, so idrjsi we assign the same georeference system to the roads [knowing that roads had previously been projected to a UTM sslva system within ArcGIS], the roads and the Landsat images will be geographically referenced together.

Under Display, select Composite. Is the spatial resolution of this image different from that of the other bands? Double-click on the zip file Landsat Set the map scale RF toomitting the comma when specifying the scale; right-mouse clicking within the image allows you to specify the map scale. This will save your composition for further editing.

Right click on the existing projects folder and select Change projects folder. What features in particular stand out in the image the ‘fuzzy worms’ 5 Question The data for the labs should be loaded into C: When you use the Ortho tool, you are creating an orthographic image.