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VISTAS TOVS Pathfinder Large Dataset Browser
Entry ID: 01-vistas-01
Abstract: The purpose of VISTAS is to provide users who have gained access to
TOVS Pathfinder data the ability to easily and quickly browse these
large datasets without having to write their own data-handling
programs. For example: In the case of one processing methodology, Path
A, 45 daily parameters (each of which include means, standard
deviations and counts) from the TOVS dataset are being gridded and
... stored in 29 MB Hierarchical Data Format (HDF) files. The full
16-year Level 3 data set (1978 through 1994) for Path A will be about
500 Gigabytes (GB) in size. This is a small data set by EOS standards.
Reduced resolution datasets containing a small sub-set of geophysical
parameters will also be available for browse purposes. VISTAS will
work on them as well.
VISTAS Visual Data Probe will allow users to "navigate" the
data by specifying which parameters on the dates they would like to
visually examine. They will be able to perform basic image processing
functions that will facilitate visual evaluation of the data.
Each global parameter dataset (or "image") is displayed in
its own window. The user can easily read the geophysical data values
of each 1 degree by 1 degree grid box while Zooming and Scrolling
around the dataset. VISTAS provides a default black and white and
optional color look-up table for full resolution Level 3 parameters.
VISTAS will read, apply and store for re-application the color
look-up tables contained within the Browse image products.
ISO Topic Category
Access Constraints TOVS data aquisition required pre-registration
Use Constraints VISTAS runs only on a Sun Sparc Station using Sun Operating Systems
(OS) 4.1.x and Silicon Graphics Workstations using IRIX 5.1.x. Both
operating systems also need X-Window Version 11 Revison 5. Minimum
recommended memory is 32 MB. Disk space requirement will depend on
the amount of data you wish to process locally. In order to obtain
TOVS data, you need to be either connected to the or have an 8mm tape
drive. There is also a possibility that TOVS Browse products will be
distributed via CD-ROM.
Creation and Review Dates