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Calibration of Smartphone-Based Weather Measurements Using Pairwise Gossip

Accurate and reliable daily global weather reports are necessary for weather forecasting and climate analysis. However, the availability of these reports continues to decline due to the lack of economic support and policies in maintaining ground weather measurement systems from where these reports a...

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Detalles Bibliográficos
Autores principales: Zamora, Jane Louie Fresco, Kashihara, Shigeru, Yamaguchi, Suguru
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4570958/
https://www.ncbi.nlm.nih.gov/pubmed/26421312
http://dx.doi.org/10.1155/2015/494687
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author Zamora, Jane Louie Fresco
Kashihara, Shigeru
Yamaguchi, Suguru
author_facet Zamora, Jane Louie Fresco
Kashihara, Shigeru
Yamaguchi, Suguru
author_sort Zamora, Jane Louie Fresco
collection PubMed
description Accurate and reliable daily global weather reports are necessary for weather forecasting and climate analysis. However, the availability of these reports continues to decline due to the lack of economic support and policies in maintaining ground weather measurement systems from where these reports are obtained. Thus, to mitigate data scarcity, it is required to utilize weather information from existing sensors and built-in smartphone sensors. However, as smartphone usage often varies according to human activity, it is difficult to obtain accurate measurement data. In this paper, we present a heuristic-based pairwise gossip algorithm that will calibrate smartphone-based pressure sensors with respect to fixed weather stations as our referential ground truth. Based on actual measurements, we have verified that smartphone-based readings are unstable when observed during movement. Using our calibration algorithm on actual smartphone-based pressure readings, the updated values were significantly closer to the ground truth values.
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spelling pubmed-45709582015-09-29 Calibration of Smartphone-Based Weather Measurements Using Pairwise Gossip Zamora, Jane Louie Fresco Kashihara, Shigeru Yamaguchi, Suguru ScientificWorldJournal Research Article Accurate and reliable daily global weather reports are necessary for weather forecasting and climate analysis. However, the availability of these reports continues to decline due to the lack of economic support and policies in maintaining ground weather measurement systems from where these reports are obtained. Thus, to mitigate data scarcity, it is required to utilize weather information from existing sensors and built-in smartphone sensors. However, as smartphone usage often varies according to human activity, it is difficult to obtain accurate measurement data. In this paper, we present a heuristic-based pairwise gossip algorithm that will calibrate smartphone-based pressure sensors with respect to fixed weather stations as our referential ground truth. Based on actual measurements, we have verified that smartphone-based readings are unstable when observed during movement. Using our calibration algorithm on actual smartphone-based pressure readings, the updated values were significantly closer to the ground truth values. Hindawi Publishing Corporation 2015 2015-09-02 /pmc/articles/PMC4570958/ /pubmed/26421312 http://dx.doi.org/10.1155/2015/494687 Text en Copyright © 2015 Jane Louie Fresco Zamora et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Zamora, Jane Louie Fresco
Kashihara, Shigeru
Yamaguchi, Suguru
Calibration of Smartphone-Based Weather Measurements Using Pairwise Gossip
title Calibration of Smartphone-Based Weather Measurements Using Pairwise Gossip
title_full Calibration of Smartphone-Based Weather Measurements Using Pairwise Gossip
title_fullStr Calibration of Smartphone-Based Weather Measurements Using Pairwise Gossip
title_full_unstemmed Calibration of Smartphone-Based Weather Measurements Using Pairwise Gossip
title_short Calibration of Smartphone-Based Weather Measurements Using Pairwise Gossip
title_sort calibration of smartphone-based weather measurements using pairwise gossip
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4570958/
https://www.ncbi.nlm.nih.gov/pubmed/26421312
http://dx.doi.org/10.1155/2015/494687
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