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Proceedings Paper

A prototype of land information sensor web (LISW)
Author(s): Hongbo Su; Paul R. Houser; Yudong Tian; James V. Geiger; Sujay V. Kuma; Deborah R. Belvedere
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Paper Abstract

To meet future earth system science challenges, NASA will develop constellations of smart satellites in sensor web configurations that provide timely on-demand data and analysis to users, and that be reconfigured based on the changing needs of science and available technology. Sensor webs can eclipse the value of disparate sensor components by reducing response time and increasing scientific value, especially when integrated with science analysis, data assimilation, prediction modeling and decision support tools. The prototype Land Information Sensor Web (LISW) is a project sponsored by NASA, trying to integrate the Land Information System (LIS) in a sensor web framework which allows for optimal 2-way information flow that enhances land surface modeling using sensor web observations, and in turn allows sensor web reconfiguration to minimize overall system uncertainty. This prototype is based on a simulated interactive sensor web, which is then used to exercise and optimize the sensor web - modeling interfaces. These synthetic experiments provide a controlled environment in which to examine the end-to-end performance of the prototype, the impact of various design sensor web design trade-offs and the eventual value of sensor webs for particular prediction or decision support. The Study of virtual Land Information Sensor Web (LISW) is expected to provide some necessary priori knowledge for designing and deploying the next generation Global Earth Observing System of systems (GEOSS). In this paper, the progress of the LISW study will be presented, especially in scenario experiment design, sensor web framework and uncertainties in current land surface modeling.

Paper Details

Date Published: 2 October 2007
PDF: 11 pages
Proc. SPIE 6684, Atmospheric and Environmental Remote Sensing Data Processing and Utilization III: Readiness for GEOSS, 668415 (2 October 2007); doi: 10.1117/12.734698
Show Author Affiliations
Hongbo Su, Ctr. for Research on Environment and Water (United States)
Paul R. Houser, Ctr. for Research on Environment and Water (United States)
George Mason Univ. (United States)
Yudong Tian, Univ. of Maryland, Baltimore County (United States)
NASA Goddard Space Flight Ctr. (United States)
James V. Geiger, NASA Goddard Space Flight Ctr. (United States)
Sujay V. Kuma, Univ. of Maryland, Baltimore County (United States)
NASA Goddard Space Flight Ctr. (United States)
Deborah R. Belvedere, Ctr. for Research on Environment and Water (United States)


Published in SPIE Proceedings Vol. 6684:
Atmospheric and Environmental Remote Sensing Data Processing and Utilization III: Readiness for GEOSS
Mitchell D. Goldberg; Hal J. Bloom; Allen H.-L. Huang; Philip E. Ardanuy, Editor(s)

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