The GiovanniNEO Oceanographic

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The Giovanni-NEO Oceanographic Education Cookbook
Instructional
James G. Acker David Herring Gregory
Leptoukh Suhung Shen Steven Kempler
NASA Goddard Earth Sciences Data and Information
Services Center (GES DISC) NASA Goddard Earth
Sciences Office of Outreach
AGU/ASLO/TOS Ocean Sciences Meeting 2008
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Motivation

• The GES DISC and the Earth Sciences Division
  Office of Outreach have created two powerful
  online data analysis tools that can be applied to
  remote sensing data
• using nothing more than a Web browser!
• Our motivation is to facilitate the use of these
  tools by educators (and students), and also by
  the scientifically-minded public

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Giovanni GES DISC Interactive Online
Visualization ANd aNalysis Infrastructure

• The main components of Giovanni are
• interactive map for region-of-interest
  selection
• menu of available data products
• calendar menu for time-period selection
• menu of visualization options
• visualization-specific options (color palette,
  axis values)
• menu of output options

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Hövmoller plots
Area plot
Animations display successive area plots
Time - series
Overlay Plots
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X-Y scatter plots (here, SST vs. chlorophyll)
Multiple data product time-series (here, SST vs.
chlorophyll, in a Giovanni output figure adapted
for publication)
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NEONASA Earth Observations

• The main components of NEO are
• Data file selection interface global, multiple
  datasets
• Search interface
• ICE (Image Composite Editor) which allows
• True-color false color composites
• Scatter plots or graphs of transects
• Histogram analyses
• Probe function find unit values and lat-lon
  info per pixel
• Animate time-series images
• Perform math functions
• Zoom pan
• Assign color palettes

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Examples of NEO visualizations
Scatter Plot
Transect Plot
Histogram
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Philosophy

• Many educational and scientific organizations
  have created excellent, sophisticated
  end-to-end lesson plans using remote-sensing
  data
• Our philosophy is to provide educators with a
  pick-and-choose resource that can be easily
  integrated into existing lesson plans or courses
  of instruction which will also foster skill
  building with the Giovanni and NEO tools
• and the public, providing informal
  environmental research and education

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Surmounting the barrier of established curricula
in classroom instruction! Skilled researchers
and teachers who have taught courses for many
years know what works, and they cover the
material they have determined to be
necessary. Adding something new like Giovanni
and NEO usually requires replacing an
instructional element that has functioned well
with something as good preferably better. AND
it should be easy for them to do that!!
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Question What is needed to facilitate Giovanni
and NEO implementation in oceanographic
education? Answer A cookbook providing
recipes for the investigation of a multitude of
regions and oceanographic processes. A
skilled chef the classroom instructor can
select the appropriate recipes which satisfy the
educational requirements of a particular
course. A recipe would indicate the data
products, visualizations, regions, time periods,
etc. to produce the desired output which the
student interprets.
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Components of the Giovanni-NEO Instructional
Cookbook

• Introduction
• How to use it what the data products mean
  what scientists are interested in data quality
  concerns
• Functions
• Instructions on creating the basic visualizations
  and analyses in Giovanni and NEO
• Recipes!
• Step-by-step presentations for creating
  visualizations and analyses appropriate for
  region or topic - EXPANDABLE
• Additional Information
• Resources (high-quality links) providing
  investigational
• opportunities, expanding the range of knowledge

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Organization

• Each recipe chapter will be organized as Local
  Regional Global topics.
• This organizational strategy facilitates
  connectivity between the observing environment of
  the users (teachers/students/public) with the
  larger-scale view from space provided by remote
  sensing data

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Example East Australia Current
Location Guide
The Introduction to each recipe states which
data sets and visualizations will be used, and
provides a visual and numerical (lat/lon)
location guide
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Example East Australia Current
Giovanni area plots of Sea Surface
Temperature and Chlorophyll Concentration
Chlorophyll Concentration plot utilizes
the Customized Color Scale option
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Example East Australia Current
NEO Side-by-side chlorophyll and sea surface
temperature transect analysis
Transect plots show fronts and eddies clearly
EAC Front
Northern eddy
Southern eddy
Java applet allows interactive transect plot
drawing
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Development Plan

• The current Giovanni-NEO oceanographic
  instructional cookbook is a demonstration
  prototype
• A workshop (April-May) at GSFC will refine the
  concept and objectives attendees will be
  scientists, data specialists, formal and informal
  educators
• The cookbook will be expanded into multiple
  discipline areas

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Take a look!

• http//disc.sci.gsfc.nasa.gov/
• oceancolor/locus/
• Giovanni_NEO_cookbook_Introduction.shtml
• OR
• just Google Laboratory for Ocean Color Users !

Feedback and comments welcome jim.acker_at_nasa.gov
Thanks for listening!