Feature Identification Exercises
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Welcome
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Feature Identification Exercises: Clouds, Snow, and Ice Using MODIS.
This module demonstrates the daytime use of multispectral MODIS imagery for the identification of clouds over snow and ice cover through four miniexercises covering four geographical regions. Each exercise is designed to provide the learner with opportunities to explore and practic technoques that draw on relatively new multispectral imaging capabilities available with NOAA -16, -17, and the EOS polar satellites Terra and Aqua. On the EOS satellites, the MODIS 36-channel imager offers many new and exciting observing capabilities for land, ocean and atmosphere. Similar capabilities will become available with NPOESS and METOP satellites in the future.
How to Begin:
To start the module, click the Main Menu Button. Channel selection and
feature identification case-example exercises are presented at each of
the locations listed on the menu.
Using the Module:
Each case example begins with images of the area in question using visible,
shortwave infrared (1.6-micrometer), short-wave infrared (3.9-micrometer),
and infrared window (11-micrometer) channels. Use these images to help
answer questions on channel selection and feature identification. Answers
with explanations and imagery (where appropriate) follow each question.
Software Required:
The print version of Feature Identification Exercises: Clouds, Snow, and
Ice Using MODIS is written HTML and only requires a current browser (Netscape®
Navigator 6.x or 7.x or Microsoft® Internet Explorer® 5.x or 6.x)
to use this module.
Cache Settings:
It is strongly suggested that you empty your cache and set the cache size
to at least 10 MB or more before starting this module. In Netscape Navigator,
use the Edit menu and select Preferences, Advanced, Cache. In Microsoft
Internet Explorer, use the Tools menu and select Internet Options, General,
Temporary Internet Files, Settings.
Downloading the Module:
To download the entire Webcast, go to this module's home page (by clicking
the icon above the left menu bar) and then click "Download Version"
button.
Please access the Tech Notes for more information
on using the module.