Satellite Imagery, Access and Interpretation

Training Workshop in Partnership with BAAQMD

Santa Clara, CASeptember 10 – 12, 2013

Applied Remote SEnsing Training (ARSET) – Air Quality

A project of NASA Applied Sciences1

Hands on exercise

MODIS Rapid Response Sitehttp://earthdata.nasa.gov/data/near-real-time-data/rapid-response

MODIS-Atmos Sitehttp://modis-atmos.gsfc.nasa.gov/IMAGES/index.html

NASA’s Visible Earthhttp://visibleearth.nasa.gov

NASA’s Earth Observatoryhttp://earthobservatory.nasa.gov

NASA Earth Observations (NEO) http://neo.sci.gsfc.nasa.gov

MODIS Todayhttp://ge.ssec.wisc.edu/modis-today/

World Viewhttp://earthdata.nasa.gov/labs/worldview/

A Brief Tour of Some Useful Image Archives

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MODIS Rapid Response Sitehttps://earthdata.nasa.gov/data/near-real-time-data/rapid-response

• MODIS only image archive which is easy to search.

• Quick posting of new MODIS images.

• Links to data used to generate MODIS images.

• Collections of images by region and by association with ground based instruments

NASA’s Visible Earthhttp://visibleearth.nasa.gov

• A tremendous archive of images and animations from and about many sensors.

• Search results can be too large to browse through unless many conditions are added to the search.

NASA’s Earth Observatoryhttp://earthobservatory.nasa.gov

• Site designed for outreach and education.

• Images and stories of Earth Science phenomena are linked.

• Subscriptions to newsletters to keep track of recent stories and Natural Hazards.

NASA Earth Observations (NEO)http://neo.sci.gsfc.nasa.gov

• Site designed for outreach and education.

• Can explore several remote sensing products with an easy to use interface.

• The ability to quickly produce high quality graphic images from the site.

• The ability to quickly create products that can be mapped onto Google Earth.

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MODIS NRT Data at LANCE• https://earthdata.nasa.gov/data/near-real-time

-data/rapid-response• MODIS subsets -> FAS• Good GIS base layers

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Example: Rim Fire at Yosemite NP

• Click on USA 1 subset

• Set date to Aug 30• Select Terra or Aqua• View 2 km imagery• Add vector options:

fires+coast+borders• View previous and

next days• View

250m/500m/1km images

For GIS Operations

• Choose 250 m resolution• Download JPG image with

ancillary files (.zip), or• Download GeoTIFF file• If selected, vector options will

become part of the image, not separate layers

The site includes a searchable archive of “Image of the Day”

Site #2NASA’s Earth Observatory

http://earthobservatory.nasa.gov/

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NASA’s Earth Observatory is intended to be an educational site for the general public with an interest in Earth Science.

Feature articles explaining Earth Science issues and phenomena

The site includes a searchable archive of “Image of the Day”

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A simple search using “fires” “California”returns 63 pages of results.

You can use the drop down menu to choose a section of the site to search to reduce the number of results.

Site sections include:• Image of the day• Features• Natural Hazards• News• Blogs

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You can browse the archive by broad topic categories

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You can browse within a topic by

subtopic or by date.

Natural Hazards Section

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http://earthobservatory.nasa.gov/Subscribe/

One very nice feature of this site is the option to subscribe to any of several e-mail news letters.

For example, if you wanted to keep track of the most recent news on volcanic eruptions, you would subscribe to the Natural Hazards Daily

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Sample Update e-mail from the Natural Hazard mailing list

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GLIDER Software

• GLIDER is a comprehensive tool for image analysis, classification and data mining.

• Explore the various aspects of GLIDER • More importantly, it’s free!• http://miningsolutions.itsc.uah.edu/

glider/

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Volcanic Ash

• R:0.645 um, G : 0.858um (NIR), B : 0.469 um (All channels equalized)

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Volcanic Ash

R:0.645 mm, G : 0.858mm, B : 11.03 mm (microwave channel for water vapor) (All channels equalized, B channel also flipped)

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