Title :
Using ATM networks for processing global Earth data
Author :
Kess, Barbara L. ; Romig, Phillip R. ; Reichenbach, Stephen E. ; Samal, Ashok
Author_Institution :
Dept. of Comput. Sci. & Eng., Nebraska Univ., Lincoln, NE, USA
Abstract :
Current workstation technology provides an unprecedented amount of computational power to researchers at an affordable cost, making it feasible to use workstations rather than expensive supercomputers to perform scientific analysis of large data sets, such as the global land 1-km AVHRR data. In addition to this, inexpensive high speed ATM networks have the potential to improve the overall computational efficiency of workstations by using several workstations in a distributed environment. This research studies the practicality of using distributed workstations interconnected with a 155 Mb ATM network for analysis and compression of the global land 1-km AVHRR data versus sequential computing on one of the workstations. Performance comparisons are given for three algorithms associated with the compression of these data. Based on the test results, a discussion is given regarding the practicality of using a distributed system to enhance performance when processing global Earth data
Keywords :
asynchronous transfer mode; computer graphics; distributed processing; geophysical signal processing; geophysical techniques; geophysics computing; remote sensing; ATM network; asynchronous transfer mode; computer graphics; connected workstation; distributed processing; distributed workstations; geophysical measurement technique; geophysics computing; global Earth data; global land 1-km AVHRR; global land 1-km AVHRR data; image analysis; image coding; image compression; image processing; land surface; remote sensing image; terrain mapping; Computational efficiency; Computer networks; Costs; Data analysis; Distributed computing; Earth; LAN interconnection; Performance analysis; Supercomputers; Workstations;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516562
