NDLI: Marina-Scale Water Temperature Sensing in Real Time Using Microtomography

Content Provider	IEEE Xplore Digital Library
Author	Goodney, A. Negandhi, D. Joshi, K. Cho, Y.H.
Copyright Year	2011
Abstract	Small scale marine environments (bays, channels, estuaries, marinas, etc.) are dynamic environments where diverse flora and fauna come into close contact with man-made processes. Yet water temperature monitoring of these coastal environments is usually spatially sparse due to the cost of acquiring, deploying and maintaining buoys. In this paper we introduce micro tomography: using precise time-of-flight calculations for acoustic signals sent over short distances (50 m) to measure water temperature. The traditional use of the technology is to construct low resolution temperature and current maps of large bodies of water useful for global climate study, however here we apply the key concepts to a sensor network to enable real-time monitoring of water temperature while also improving the spatial resolution of the data. As we use time-of-flight measurements to accomplish our goal, high precision and tight time synchronization are required of the network in order to produce meaningful temperature maps. On the other hand, the reduced scale introduces a new opportunity to utilize the technology to sense even the slightest change in temperature. To show our system is realizable we present our prototype underwater acoustic sensor nodes and experimental results that indicates a temperature resolution of approximately one-tenth of a degree Celsius. We also present our micro-tomography simulation software. With the simulator we can study the feasibility of building a more complex marina-scale tomography system and the requirements that must be met by the underlying sensor network.
Starting Page	208
Ending Page	217
File Size	3566233
Page Count	10
File Format	PDF
ISBN	9781457703843
ISSN	15450678
DOI	10.1109/ICDCSW.2011.43
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Acoustics Ocean temperature Temperature measurement Temperature sensors Tomography acoustic tomography sensor networks underwater sensing acoustic sensing
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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