Geoscience Reference
In-Depth Information
A.2.2
Fine Spatial Resolution Multispectral Data
For the case study in Chap.
17
we use two Landsat 8 scenes. Landsat 8 is the eight
satellite in the Landsat program. The first Landsat was launched in 1972. The scenes
for the case study in this topic have been acquired in June and July 2013 over the
central and southern parts of Ireland. The scenes are downloaded in compressed
archive format from the United States Geological Survey (USGS).
10
The USGS'
Global VisualizationViewer (Glovis)
11
is particularly useful for searching and down-
loading Landsat scenes. However, it is necessary that you Web browser has the up-
to-date Java plugin. Unpacking of the imagery can be done using the
tar
command
on Linux or 7Zip on Windows. Metadata relating to the content and spectral bands
A.2.3
Hyperspectral Airborne Data
The data fusion contest, issued by the Geoscience and Remote Sensing Society
(GRSS) as part of the Institute of Electrical and Electronics Engineers (IEEE),
involves two datasets. The first is a hyperspectral image, acquired with the com-
pact airborne spectrographic imager (CASI) sensor on June 23, 2012. It consists
of a total of 144 spectral bands, covering a spectral range of 380-1050nm of the
electromagnetic spectrum. The second data set is a digital surface model (DSM) that
was derived from three dimensional point data. The point data were obtained with a
LiDAR sensor on June 22, 2012. The area of interest is the campus of the University
of Houston, Texas and neighboring areas.
Both the hyperspectral and LiDAR derived Digital Surface Model (DSM) are
co-registered within a common spatial grid. The grid cells are 2
5m
2
.The
data are kindly provided by the Hyperspectral Image Analysis group and the NSF
Funded Center for Airborne Laser Mapping (NCALM) at the University of Houston.
The training and test set are put available by the IEEE GRSS Data Fusion Technical
Committee. The full contest terms and conditions can be found at.
12
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5
×
2
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A.2.4
Land Cover Maps
The case study in Chap.
17
deals with the production of land cover maps over a small
region of interest. The results can be downloaded from the website.
We also use two existing land cover products. One is the European forest type map
for the reference year of 2006 that has been produced by the Joint Research Centre
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