IEEE Geoscience and Remote Sensing Magazine - March 2013 - 56

FIGURE 12. IMAGESEER Web site-downloading data with a cart.

demonstration" of the website. From the main IMAGESEER
web page shown in Figure 1 and accessible at imageseer.
nasa.gov, the user can choose the domain of interest,
either by going to the "Domain" tab at the top left of the
browser or by dragging the cursor onto different areas
of the image. The user can choose between 3 possible
domains, Earth Science, Planetary Science or Exploration,
although only Earth Science is
currently populated with data.
Eventually, IMAGESEER
After choosing the Earth Sciwill include
ence domain, the page shown
additional data
in Figure 7 opens, correspondfrom Earth Science,
ing to the Earth Science portal.
Planetary and
This page displays a false color
Exploration Science,
image of an Earth Science scene
as well as additional
chosen at random along with
the thumbnails of all separate
image processing
bands, the filenames and their
challenges.
sizes. In the top left portion of
the pages, several tabs enable
the user to select scenes by projects, missions or instruments. The selection can also be
made with the table displayed at the bottom of the page
and organized by image processing techniques, missions
and geographical areas/features.
When the selection is made through the projects/missions, Figure 8 shows the expanded menu on the left side
and the results shown on the right side of the page when
choosing the Landsat Project, the Landsat 4-5 missions,
the Image Classification technique and no specific dates.
56

The user can then refine his/her search by specifying year,
month and/or geographical area.
Figures 9 and 10 then show one particular Landsat 5
scene of the Chesapeake Bay area in April 1991. On the
right side of the thumbnail is a list of basic metadata and
information corresponding to the scene, such as size, format, acquisition time, etc. This listing also contains a link
to the 1K by 1K sub-image extracted from the scene. At the
bottom of the page, truth datasets associated with the scene
are listed; here the NLDC classification map and the cloud
mask, followed by a pie chart and a histogram showing the
class distribution in the given scene. Finally, all individual
bands are shown and available for individual download or
for adding to the cart.
When clicking on the NLCD and cloud mask thumbnails, information about these truth datasets and other
scenes to which they apply are displayed: see Figure 11 for
the information related to NLCD.
Then, if the user selects to download the data by using a
cart and creating an account, Figure 12 shows a display of a
cart containing the Landsat scene along with the associated
NLCD map and cloud mask. These three data files are then
downloaded with one large zip file.
Finally, as described in Section III.C, students and citizen
scientists may use the IMAGESEER website for its Education
section. Currently, the section contains very few articles, but
we hope that overtime, additional material will be proposed
by our collaborators and that this collection will include
introductory material as well as in-depth articles and potentially lesson plans and NASA challenges and solutions. Figure 13 shows examples of material currently available.
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march 2013

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Table of Contents for the Digital Edition of IEEE Geoscience and Remote Sensing Magazine - March 2013