WETMAAP Skill 1
Mono Lake - Element 15

Skill 1: Map Use
Element 15: Use of AVIRIS Images

Materials:

1990 AVIRIS Images

1999 Aerial Photograph

            1999 Land Cover Map

            Sensor Systems of the NASA Airborne Science Program

Exercise:

1.   Use 1990 AVIRIS Images of Mono Lake.

2.   Use the 1995 Aerial Photograph covering the same area.

3.      Read the Sensor Systems of the NASA Airborne Science Program description of the AVIRIS Sensor.

4.       What does the acronym AVIRIS stand for?

_____________________________________________________________

5.      Certain bands of the AVIRIS digital image have been processed by the Airborne Science Program to replicate Natural Color Images.

      What is a natural color image?

      ____________________________________________________________

6.       What are the dates of the two AVIRIS images and what seasons does each represent?

Left Image        Date_________      Season____________

                  Right Image      Date _________     Season____________

            7.      Using the 1999 Land Cover Map compare the vegetation types on the map to the same areas and colors on the two AVIRIS images.

8.       List two differences observed between the two AVIRIS images in the vegetation.

1.      ____________________________________________________

                  2.                   ____________________________________________________

9.  Using the two AVIRIS images, the 1999 Aerial Photograph, and the 1999 Land Cover Map

                  a.  Identify the wetlands at the northwest corner of the lake.

                  b.   What are the bright multi-colored areas along the bottom edge of the right AVIRIS image? 

                                    ___________________________________________________________

                  c.   What are the blue areas (not the water of the Lake) in the lower right corner of the right AVIRIS image?

                                      ___________________________________________________________

                  d.   What are the blue areas (not the water of the Lake) on the left AVIRIS image?

                                    _____________________________________________________

10.      What might be some of the advantages of the AVIRIS sensor data over aerial photography?

                                    _____________________________________________________

                                    _____________________________________________________

11.      What might be some of the disadvantages of the AVIRIS sensor data in comparison to the aerial photography?

                                    _____________________________________________________

                                    _____________________________________________________