NDLI: Space weather predictions service for safety-critical GPS applications

Content Provider	IEEE Xplore Digital Library
Author	Skone, S. El-Gizawy, M. Shrestha, S.M.
Copyright Year	2002
Description	Author affiliation: Dept. of Geomatics Eng., Calgary Univ., Alta., Canada (Skone, S.; El-Gizawy, M.; Shrestha, S.M.)
Abstract	Enhanced ionospheric effects may exist during space weather events, leading to degradations in GPS performance and positioning accuracies. This issue is a concern for reliable operation of safety-critical GPS systems, such as marine DGPS services or Satellite-Based Augmentation Systems (SBAS) for aviation applications. These storm-related effects tend to peak in the years following solar maximum, and will continue to be a concern for GPS applications over the next few years (2002-2003). In order to provide timely predictions of space weather events, we have recently investigated an ionospheric warning and alert system for GPS applications. Predictive capabilities are based on space weather parameters provided by the United States Space Environment Center at NOAA. The impact of ionospheric activity on GPS performance has been quantified using several years of GPS data from the North American sector, with a focus on marine and aviation applications. We have established strong correlations between GPS performance and various ionospheric phenomena, and we are able to provide space weather predictions for GPS users up to six hours in advance.
Sponsorship	IEEE Aerospace Electron. Syst. Soc
Starting Page	156
Ending Page	163
File Size	713311
Page Count	8
File Format	PDF
ISBN	0780372514
DOI	10.1109/PLANS.2002.998903
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-04-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Weather forecasting Global Positioning System Degradation Monitoring Frequency Delay North America Reliability engineering State-space methods Extraterrestrial phenomena
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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