A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS

Wang Hao; Wang Yue; Wang Yongqian

doi:doi:10.11648/j.earth.20160504.11

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A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS

Wang Hao, Wang Yue, Wang Yongqian

Published in Earth Sciences (Volume 5, Issue 4)

Received: 3 August 2016 Accepted: 11 August 2016 Published: 31 August 2016

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Abstract

This study utilized the ground-based GPS water vapor monitoring network in the Chengdu Plain (102.9°–104.9°E, 30.1°–31.4°N), alongside radiosonde data and National Center for Environmental Prediction and National Center for Atmospheric Research (NCEP/NCAR) reanalysis data, to conduct a comprehensive analysis of a heavy precipitation event in this region in 2008. Correlations were found between the GPS precipitable water vapor (GPS-PWV) variations, the actual precipitation in the region, and the physical mechanism for the GPS-PWV variations. The research results indicate that the variation trends in precipitable water vapor had a significant correlation with actual precipitation. The precipitable water vapor increased and decreased significantly before and after the precipitation event, respectively. The residence time of precipitable water vapor at high levels was correlated with the duration of actual precipitation to some extent. The maximum value of the precipitation intensity lagged behind the precipitable water vapor peak, which brought forward precipitation to a certain degree. A strong ascending motion of the air was linked to increases in PWV, and the intensity of the ascending motion was strongly correlated with GPS-PWV. Different atmospheric thermodynamic conditions also had a notable effect on GPS-PWV variations.

Published in	Earth Sciences (Volume 5, Issue 4)
DOI	10.11648/j.earth.20160504.11
Page(s)	48-55
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Ground-Based GPS, Precipitable Water Vapor, Heavy Precipitation, Dynamic Conditions, Thermodynamic Conditions

References

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Wang Hao, Wang Yue, Wang Yongqian. (2016). A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS. Earth Sciences, 5(4), 48-55. https://doi.org/10.11648/j.earth.20160504.11

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ACS Style

Wang Hao; Wang Yue; Wang Yongqian. A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS. Earth Sci. 2016, 5(4), 48-55. doi: 10.11648/j.earth.20160504.11

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AMA Style

Wang Hao, Wang Yue, Wang Yongqian. A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS. Earth Sci. 2016;5(4):48-55. doi: 10.11648/j.earth.20160504.11

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@article{10.11648/j.earth.20160504.11,
  author = {Wang Hao and Wang Yue and Wang Yongqian},
  title = {A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS},
  journal = {Earth Sciences},
  volume = {5},
  number = {4},
  pages = {48-55},
  doi = {10.11648/j.earth.20160504.11},
  url = {https://doi.org/10.11648/j.earth.20160504.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20160504.11},
  abstract = {This study utilized the ground-based GPS water vapor monitoring network in the Chengdu Plain (102.9°–104.9°E, 30.1°–31.4°N), alongside radiosonde data and National Center for Environmental Prediction and National Center for Atmospheric Research (NCEP/NCAR) reanalysis data, to conduct a comprehensive analysis of a heavy precipitation event in this region in 2008. Correlations were found between the GPS precipitable water vapor (GPS-PWV) variations, the actual precipitation in the region, and the physical mechanism for the GPS-PWV variations. The research results indicate that the variation trends in precipitable water vapor had a significant correlation with actual precipitation. The precipitable water vapor increased and decreased significantly before and after the precipitation event, respectively. The residence time of precipitable water vapor at high levels was correlated with the duration of actual precipitation to some extent. The maximum value of the precipitation intensity lagged behind the precipitable water vapor peak, which brought forward precipitation to a certain degree. A strong ascending motion of the air was linked to increases in PWV, and the intensity of the ascending motion was strongly correlated with GPS-PWV. Different atmospheric thermodynamic conditions also had a notable effect on GPS-PWV variations.},
 year = {2016}
}

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TY  - JOUR
T1  - A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS
AU  - Wang Hao
AU  - Wang Yue
AU  - Wang Yongqian
Y1  - 2016/08/31
PY  - 2016
N1  - https://doi.org/10.11648/j.earth.20160504.11
DO  - 10.11648/j.earth.20160504.11
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 48
EP  - 55
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20160504.11
AB  - This study utilized the ground-based GPS water vapor monitoring network in the Chengdu Plain (102.9°–104.9°E, 30.1°–31.4°N), alongside radiosonde data and National Center for Environmental Prediction and National Center for Atmospheric Research (NCEP/NCAR) reanalysis data, to conduct a comprehensive analysis of a heavy precipitation event in this region in 2008. Correlations were found between the GPS precipitable water vapor (GPS-PWV) variations, the actual precipitation in the region, and the physical mechanism for the GPS-PWV variations. The research results indicate that the variation trends in precipitable water vapor had a significant correlation with actual precipitation. The precipitable water vapor increased and decreased significantly before and after the precipitation event, respectively. The residence time of precipitable water vapor at high levels was correlated with the duration of actual precipitation to some extent. The maximum value of the precipitation intensity lagged behind the precipitable water vapor peak, which brought forward precipitation to a certain degree. A strong ascending motion of the air was linked to increases in PWV, and the intensity of the ascending motion was strongly correlated with GPS-PWV. Different atmospheric thermodynamic conditions also had a notable effect on GPS-PWV variations.
VL  - 5
IS  - 4
ER  -

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Author Information

Wang Hao

College of Meteorological Observation, Chengdu University of Information Technology, Chengdu, China
Wang Yue

Meteorological Service Center, Chengdu Meteorological Bureau, Chengdu, China
Wang Yongqian

College of Resources and Environment, Chengdu University of Information Technology, Chengdu, China

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Plain Text BibTeX RIS

APA Style

Wang Hao, Wang Yue, Wang Yongqian. (2016). A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS. Earth Sciences, 5(4), 48-55. https://doi.org/10.11648/j.earth.20160504.11

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ACS Style

Wang Hao; Wang Yue; Wang Yongqian. A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS. Earth Sci. 2016, 5(4), 48-55. doi: 10.11648/j.earth.20160504.11

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AMA Style

Wang Hao, Wang Yue, Wang Yongqian. A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS. Earth Sci. 2016;5(4):48-55. doi: 10.11648/j.earth.20160504.11

Copy | Download

@article{10.11648/j.earth.20160504.11,
  author = {Wang Hao and Wang Yue and Wang Yongqian},
  title = {A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS},
  journal = {Earth Sciences},
  volume = {5},
  number = {4},
  pages = {48-55},
  doi = {10.11648/j.earth.20160504.11},
  url = {https://doi.org/10.11648/j.earth.20160504.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20160504.11},
  abstract = {This study utilized the ground-based GPS water vapor monitoring network in the Chengdu Plain (102.9°–104.9°E, 30.1°–31.4°N), alongside radiosonde data and National Center for Environmental Prediction and National Center for Atmospheric Research (NCEP/NCAR) reanalysis data, to conduct a comprehensive analysis of a heavy precipitation event in this region in 2008. Correlations were found between the GPS precipitable water vapor (GPS-PWV) variations, the actual precipitation in the region, and the physical mechanism for the GPS-PWV variations. The research results indicate that the variation trends in precipitable water vapor had a significant correlation with actual precipitation. The precipitable water vapor increased and decreased significantly before and after the precipitation event, respectively. The residence time of precipitable water vapor at high levels was correlated with the duration of actual precipitation to some extent. The maximum value of the precipitation intensity lagged behind the precipitable water vapor peak, which brought forward precipitation to a certain degree. A strong ascending motion of the air was linked to increases in PWV, and the intensity of the ascending motion was strongly correlated with GPS-PWV. Different atmospheric thermodynamic conditions also had a notable effect on GPS-PWV variations.},
 year = {2016}
}

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TY  - JOUR
T1  - A Comprehensive Analysis of a Heavy Precipitation Event in Chengdu Plain (China) Based on Ground-Based GPS
AU  - Wang Hao
AU  - Wang Yue
AU  - Wang Yongqian
Y1  - 2016/08/31
PY  - 2016
N1  - https://doi.org/10.11648/j.earth.20160504.11
DO  - 10.11648/j.earth.20160504.11
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 48
EP  - 55
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20160504.11
AB  - This study utilized the ground-based GPS water vapor monitoring network in the Chengdu Plain (102.9°–104.9°E, 30.1°–31.4°N), alongside radiosonde data and National Center for Environmental Prediction and National Center for Atmospheric Research (NCEP/NCAR) reanalysis data, to conduct a comprehensive analysis of a heavy precipitation event in this region in 2008. Correlations were found between the GPS precipitable water vapor (GPS-PWV) variations, the actual precipitation in the region, and the physical mechanism for the GPS-PWV variations. The research results indicate that the variation trends in precipitable water vapor had a significant correlation with actual precipitation. The precipitable water vapor increased and decreased significantly before and after the precipitation event, respectively. The residence time of precipitable water vapor at high levels was correlated with the duration of actual precipitation to some extent. The maximum value of the precipitation intensity lagged behind the precipitable water vapor peak, which brought forward precipitation to a certain degree. A strong ascending motion of the air was linked to increases in PWV, and the intensity of the ascending motion was strongly correlated with GPS-PWV. Different atmospheric thermodynamic conditions also had a notable effect on GPS-PWV variations.
VL  - 5
IS  - 4
ER  -

Copy | Download