NDLI: Web-based weather expert system (WES) for Space Shuttle launch

Content Provider	IEEE Xplore Digital Library
Author	Rajkumar, T. Bardina, J.E.
Copyright Year	2003
Description	Author affiliation: NASA Ames Res. Center, Moffett Field, CA, USA (Rajkumar, T.; Bardina, J.E.)
Abstract	The Web-based weather expert system (WES) is a critical module of the virtual test bed development to support "go/no go" decisions for space shuttle operations in the Intelligent Launch and Range Operations program of NASA. The weather rules characterize certain aspects of the environment related to the launching or landing site, the time of the day or night, the pad or runway conditions, the mission durations, the runway equipment and landing type. Expert system rules are derived from weather contingency rules, which were developed over several years by NASA. Backward chaining, a goal-directed inference method is adopted, because a particular consequence or goal clause is evaluated first, and then chained backward through the rules. Once a rule is satisfied or true, then that particular rule is fired and the decision is expressed. The expert system is continuously verifying the rules against the past one-hour weather conditions and the decisions are made. The normal procedure of operations requires a formal pre-launch weather briefing held on launch minus 1 day, which is a specific weather briefing for all areas of space shuttle launch operations. In this paper, the Web-based weather expert system of the Intelligent Launch and Range Operations program is presented.
Sponsorship	Syst., Man & Cybernetics Soc. IEEE
Starting Page	5040
Ending Page	5045
File Size	436544
Page Count	6
File Format	PDF
ISBN	0780379527
ISSN	1062922X
DOI	10.1109/ICSMC.2003.1245782
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Expert systems Space shuttles Weather forecasting System testing NASA Clouds Intelligent systems Disaster management Guidelines Rockets
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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