the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
GPS-PWV jumps before intense rain events
Abstract. A rapid increase in atmospheric water vapor is a fundamental ingredient for many intense rainfall events. High-frequency precipitable water vapor (PWV) estimates from a Global Positioning System meteorological site (GPS) are evaluated here for intense rainfall events during the CHUVA Vale field campaign in Brazil (November–December 2011), in which precipitation events of differing intensities and spatial dimensions, as observed by an X-band radar, have been explored. A wavelet cross-correlation analysis shows that there are important spikes in the PWV that precede the more intense rainfall events on a timescale from 30 to 60 minutes. The correlation and lags between the GPS-PWV and rainfall events are evaluated, and a sharp increase in the GPS-PWV prior to the more intense events has been found and termed GPS-PWV "jumps". These jumps are associated with water vapor convergence and the continued formation of cloud condensate and precipitation particles. The GPS-PWV time-derivative histogram for the period of 60 minutes before the rainfall event reveals different distributions for higher intensity events. This feature could indicate the occurrence of severe precipitation and consequently has the potential for application in nowcasting activities.
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RC1: 'Review of the manuscript ''GPS-PWV jumps before intense rain events'' by Sapucci et al., submitted to Atmospheric Measurement Techniques', Anonymous Referee #1, 28 Jan 2017
- AC1: 'Response latter for Referee1', Luiz Sapucci, 25 Mar 2017
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RC2: 'Review of the manuscript ''GPS-PWV jumps before intense rain events'' by Sapucci et al., submitted to Atmospheric Measurement Techniques', Anonymous Referee #2, 14 Feb 2017
- AC3: 'Response latter for Referee 2', Luiz Sapucci, 26 Mar 2017
-
RC3: 'Review of manuscript amt-2016-378: “GPS-PWV jumps before intense rain events” by Luiz F. Sapucci and co-authors.', Anonymous Referee #3, 18 Feb 2017
- AC2: 'Response latter for Referee 3', Luiz Sapucci, 25 Mar 2017
-
RC1: 'Review of the manuscript ''GPS-PWV jumps before intense rain events'' by Sapucci et al., submitted to Atmospheric Measurement Techniques', Anonymous Referee #1, 28 Jan 2017
- AC1: 'Response latter for Referee1', Luiz Sapucci, 25 Mar 2017
-
RC2: 'Review of the manuscript ''GPS-PWV jumps before intense rain events'' by Sapucci et al., submitted to Atmospheric Measurement Techniques', Anonymous Referee #2, 14 Feb 2017
- AC3: 'Response latter for Referee 2', Luiz Sapucci, 26 Mar 2017
-
RC3: 'Review of manuscript amt-2016-378: “GPS-PWV jumps before intense rain events” by Luiz F. Sapucci and co-authors.', Anonymous Referee #3, 18 Feb 2017
- AC2: 'Response latter for Referee 3', Luiz Sapucci, 25 Mar 2017
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Cited
5 citations as recorded by crossref.
- Precipitable water characteristics during the 2013 Colorado flood using ground-based GPS measurements H. Huelsing et al. 10.5194/amt-10-4055-2017
- An Investigation of Extreme Weather Impact on Precipitable Water Vapor and Vegetation Growth—A Case Study in Zhejiang China S. Xiong et al. 10.3390/rs13183576
- A new global grid model for the determination of atmospheric weighted mean temperature in GPS precipitable water vapor L. Huang et al. 10.1007/s00190-018-1148-9
- A Combined IR-GPS Satellite Analysis for Potential Applications in Detecting and Predicting Lightning Activity L. D’Adderio et al. 10.3390/rs12061031
- Development of an Improved Model for Prediction of Short-Term Heavy Precipitation Based on GNSS-Derived PWV H. Li et al. 10.3390/rs12244101