To access the GLS collection in ESDI:

1. Open ESDI at: http://glcfapp.umiacs.umd.edu:8080/esdi/index.jsp

2. Open the Map Search tool

3.  Click on the desired Landsat sensor at the upper left of the tool. Keep in mind that GLS1975 should have only MSS, GLS1990 should have TM, GLS2000 should have ETM+ and GLSS2005 should have TM, ETM+ and ALI. For this example, click on the ETM+ sensor.

4.  In the Require box, click on the GLS option.

5. Click Update Map to engage choices.

6. The map shows pink fill for anywhere on the map that meets the criteria. Zoom in and select a particular scene, or open the path/row tab and enter a desired location. For this example, click on the Path/Row tab on top of the map area. Enter "15" for path and "33" for row. Click Update Map again.

7. Click the Preview and Download button and available scenes will be listed. Note that GLS2000 is listed under "Attr." for attribute. To download this scene, click the Download button.