Ground-based GNSS network and integrated water vapor mapping during the development of severe storms at the Cuyo region (Argentina)
Mendoza is a province of Argentina located between 32° S and 34° S at the leeside of the Andes Foothills. Very intense thunderstorms form between October and March (southern hemisphere summer), which produce large hail and damage in crops and properties. Although some hypotheses and conceptual model...
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2016
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v176-177_n_p267_Calori http://hdl.handle.net/20.500.12110/paper_01698095_v176-177_n_p267_Calori |
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paper:paper_01698095_v176-177_n_p267_Calori2023-06-08T15:18:32Z Ground-based GNSS network and integrated water vapor mapping during the development of severe storms at the Cuyo region (Argentina) Ground-based GNSS meteorology IWV mapping Severe storms SIRGAS network Geographical distribution Global positioning system Mapping Moisture Precipitation (meteorology) Storms Water vapor Ground based Integrated water vapors Moisture concentration Navigation-satellite systems Possible mechanisms Severe storms Southern Hemisphere Validation process Atmospheric humidity GNSS ground-based measurement mapping meteorology severe weather thunderstorm water vapor Argentina Cuyo Basin Mendoza Mendoza is a province of Argentina located between 32° S and 34° S at the leeside of the Andes Foothills. Very intense thunderstorms form between October and March (southern hemisphere summer), which produce large hail and damage in crops and properties. Although some hypotheses and conceptual models were proposed in order to identify key possible mechanisms that contribute to trigger convection, they are still waiting for the validation process. As moisture is the main ingredient for storms formation, the identification of its geographical distribution could be used together with other synoptic and mesoscale forcing features to forecast intense convective events. A novel technique in estimating moisture concentration and its geographical distribution has been introduced in order to observe the influx and variability of humidity at this region, during a 45-day period in midsummer. In doing so, we resort to the information provided by the ground-basedGlobal Navigation Satellite System (GNSS) network. More than 300 active stations constitute the continuously operating GNSS network over Southern and Central America (SIRGAS-CON, Sistema de Referencia Geocéntrico para las Américas de Operación Continua). This network allows to retrieve integrated water vapor (IWV) content, mapping this variable by the use of a digital model of terrain. In the period and region under study, a prevailing influx of humidity from N and NE and a high correlation between the accumulation/depletion of humidity and the hail/no hail precipitation days is observed. We discuss in particular the development of five storms detected by the S-Band radar network belonging to the Province of Mendoza. Although the results strongly suggest that IWV maps are capable to represent the humidity dynamics in the considered region, it is still important to highlight that the calculated values for IWV are unrealistic at some locations as the consequence of deep atmospheric gradients. These biases may be explained by the fact that the GNSS observations are made over the whole horizon of each given site. © 2016 Elsevier B.V. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v176-177_n_p267_Calori http://hdl.handle.net/20.500.12110/paper_01698095_v176-177_n_p267_Calori |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Ground-based GNSS meteorology IWV mapping Severe storms SIRGAS network Geographical distribution Global positioning system Mapping Moisture Precipitation (meteorology) Storms Water vapor Ground based Integrated water vapors Moisture concentration Navigation-satellite systems Possible mechanisms Severe storms Southern Hemisphere Validation process Atmospheric humidity GNSS ground-based measurement mapping meteorology severe weather thunderstorm water vapor Argentina Cuyo Basin Mendoza |
| spellingShingle |
Ground-based GNSS meteorology IWV mapping Severe storms SIRGAS network Geographical distribution Global positioning system Mapping Moisture Precipitation (meteorology) Storms Water vapor Ground based Integrated water vapors Moisture concentration Navigation-satellite systems Possible mechanisms Severe storms Southern Hemisphere Validation process Atmospheric humidity GNSS ground-based measurement mapping meteorology severe weather thunderstorm water vapor Argentina Cuyo Basin Mendoza Ground-based GNSS network and integrated water vapor mapping during the development of severe storms at the Cuyo region (Argentina) |
| topic_facet |
Ground-based GNSS meteorology IWV mapping Severe storms SIRGAS network Geographical distribution Global positioning system Mapping Moisture Precipitation (meteorology) Storms Water vapor Ground based Integrated water vapors Moisture concentration Navigation-satellite systems Possible mechanisms Severe storms Southern Hemisphere Validation process Atmospheric humidity GNSS ground-based measurement mapping meteorology severe weather thunderstorm water vapor Argentina Cuyo Basin Mendoza |
| description |
Mendoza is a province of Argentina located between 32° S and 34° S at the leeside of the Andes Foothills. Very intense thunderstorms form between October and March (southern hemisphere summer), which produce large hail and damage in crops and properties. Although some hypotheses and conceptual models were proposed in order to identify key possible mechanisms that contribute to trigger convection, they are still waiting for the validation process. As moisture is the main ingredient for storms formation, the identification of its geographical distribution could be used together with other synoptic and mesoscale forcing features to forecast intense convective events. A novel technique in estimating moisture concentration and its geographical distribution has been introduced in order to observe the influx and variability of humidity at this region, during a 45-day period in midsummer. In doing so, we resort to the information provided by the ground-basedGlobal Navigation Satellite System (GNSS) network. More than 300 active stations constitute the continuously operating GNSS network over Southern and Central America (SIRGAS-CON, Sistema de Referencia Geocéntrico para las Américas de Operación Continua). This network allows to retrieve integrated water vapor (IWV) content, mapping this variable by the use of a digital model of terrain. In the period and region under study, a prevailing influx of humidity from N and NE and a high correlation between the accumulation/depletion of humidity and the hail/no hail precipitation days is observed. We discuss in particular the development of five storms detected by the S-Band radar network belonging to the Province of Mendoza. Although the results strongly suggest that IWV maps are capable to represent the humidity dynamics in the considered region, it is still important to highlight that the calculated values for IWV are unrealistic at some locations as the consequence of deep atmospheric gradients. These biases may be explained by the fact that the GNSS observations are made over the whole horizon of each given site. © 2016 Elsevier B.V. |
| title |
Ground-based GNSS network and integrated water vapor mapping during the development of severe storms at the Cuyo region (Argentina) |
| title_short |
Ground-based GNSS network and integrated water vapor mapping during the development of severe storms at the Cuyo region (Argentina) |
| title_full |
Ground-based GNSS network and integrated water vapor mapping during the development of severe storms at the Cuyo region (Argentina) |
| title_fullStr |
Ground-based GNSS network and integrated water vapor mapping during the development of severe storms at the Cuyo region (Argentina) |
| title_full_unstemmed |
Ground-based GNSS network and integrated water vapor mapping during the development of severe storms at the Cuyo region (Argentina) |
| title_sort |
ground-based gnss network and integrated water vapor mapping during the development of severe storms at the cuyo region (argentina) |
| publishDate |
2016 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v176-177_n_p267_Calori http://hdl.handle.net/20.500.12110/paper_01698095_v176-177_n_p267_Calori |
| _version_ |
1768542408470953984 |