</COMMENT>

On-line High Resolution Imagery Access, Visualize, Measurement,
Change Detection and Analytical Tools Demostration

Click and hold down mouse to drag a green rectangle box to zoom in the area of interest.

Click and hold down mouse to drag a green rectangle box to zoom out of an area

Drag the mouse upper-right to zoom in, lower left to zoom out

Click and drag the mouse to pan the image

Click this icon to zoom to full extent of the image

Left click mouse pointer on image to add a point. Continue clicking to outline area of interest. -------Right click and drag the mouse to move a point

Click this icon to delete the digitized polygon

Move the horizontal or vertical slider bar to control the swipe line and view portion of the top image over the bottom image

The above on-line tools provide the interactive rectangle zoom-in, zoom-out, pan, and real-time zoom functions to show the fine detail of Mission Trails Regional Park. The measurement tool allows the user to measure the length, area of acreage, and draw the boundary. Interactive swipe functions provide the thorough change detection analytical capability for two anniversary 4 meter resolution IKONOS multispectral images.

Data Description:

Top (Swipe) Image: The 2001 IKONOS image is a mosaic of multispectral IKONOS imagery acquired on May 30, 2001. The spatial resolution is 4 meters. The multispectral wavebands are blue (444-516 nm), green (506-595 nm), red (631-697 nm), and near-infrared (757-852 nm). Each waveband has 11 bit radiometric range.

Bottom Image: The 2000 IKONOS image is a mosaic of multispectal IKONOS imagery acquired on June 7 and June 29, 2000. The spatial resolution is 4 meters. The multispectral wavebands are blue (444-516 nm), green (506-595 nm), red (631-697 nm), and near-infrared (757-852 nm). Each waveband has 11 bit radiometric range.

This data was acquired for the purpose of evaluating the relationships between image-derived variables and habitat quality and change in quality.

This image has been converted from its native format (GeoTIFF) to ERDAS Imagine ".img" format and reprojected from UTM to State Plane by the Department of Geography at San Diego State University.

Copyright © 2002 San Diego State University- All Rights Reserved

If you find any problem running the above applet, you can contact author Liang Guo
at guo@rohan.sdsu.edu