Ground-based GNSS network and integrated water vapor mapping during the development of severe storms at the Cuyo region (Argentina)

Calori, Andrea; Santos, Jorge Ruben; Blanco, M.; Pessano, H.; Llamedo, P.; Alexander, P.; Torre, A. de la

doi:10.1016/j.atmosres.2016.03.002

Cited by 25 publications

(30 citation statements)

References 44 publications

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“…Nevertheless, the variable is poorly sampled over the study area, with one radiosonde measurement per day. The Global Navigation Satellite System (GNSS) data has been used to retrieve water vapor at both global and regional scales and can be useful for both extreme precipitation and hail forecasting (Calori et al, 2016;Camisay et al, 2020). Modeling studies are by far the most determinant for supporting the activities of hail suppression.…”

Section: A Call For An Improved Science-policy Interfacementioning

confidence: 99%

“…These storms are also associated with the occurrence of extreme precipitation events that generate flash-floods in urban areas and landslides in mountain areas (Moreiras, 2006;Rasmussen et al, 2014;Vich et al, 2014). Moreover, the occurrence of severe convection strongly affects the cultivated areas -agricultural oases-causing damages and economic losses (Calori et al, 2016). Mendoza province is the main grape-growing region in Argentina, with 70% of the vineyard area of Argentina and 65% of the total national grape production (Agosta et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Sixty Years of Hail Suppression Activities in Mendoza, Argentina: Uncertainties, Gaps in Knowledge and Future Perspectives

Rivera

Otero

Tamayo

et al. 2020

Front. Environ. Sci.

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This paper provides a perspective based on the evaluation of scientific evidence of hail suppression activities in Mendoza, Argentina. The province of Mendoza was home to several cloud-seeding projects over the years intended to prevent hail damage to agriculture. Those projects were motivated by the paramount importance of wine production for the regional and national economy. We discuss the uncertainties and gaps in knowledge identified in the results from the hail suppression activities, framing the available research over the study area on a global context. The results of this study indicate that there is no unequivocal scientific evidence that proves a statistically significant reduction of hail frequency and size as a consequence of hail suppressing activities in Mendoza. Such lack of evidence questions the reliability of the projects after almost 60 years of cloud seeding. By analyzing the existing gaps in knowledge in terms of observations, modeling evaluations and understanding of severe convective systems, the study provides a description of future directions and alternatives for hail damage mitigation that need a better science-policy integration. This study can be replicated in other regions where hail suppressing activities are taking place.

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Section: A Call For An Improved Science-policy Interfacementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sixty Years of Hail Suppression Activities in Mendoza, Argentina: Uncertainties, Gaps in Knowledge and Future Perspectives

Rivera

Otero

Tamayo

et al. 2020

Front. Environ. Sci.

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“…The ground-based (GB) Global Navigation Satellite System (GNSS) also represents a very promising tool for the observation of PW (Duan et al, 1996;Tregoning et al, 1998;Calori et al, 2016) with an accuracy level similar to that expected from the satellite measurements (Wang et al, 2007;Vey et al, 2010).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Comparison between GNSS ground-based and GPS radio occultation precipitable water observations over ocean-dominated regions

Fonseca

Alexander

Torre

et al. 2018

Atmospheric Research

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Precipitable water (PW) inferred from GPS (Global Positioning System) radio occultation (RO) and ground-based (GB) Global Navigation Satellite System (GNSS) observations are compared between years 2007 and 2014. As previous studies were mainly performed over continental areas we now focus over oceandominated geographical areas. Our analysis is done in order to find out how the reliability level of RO results over oceanic areas compares to land. As RO soundings usually miss some information close to the ground, we also assess different methods to complete the lacking data. We found 47 terrestrial stations that lie in islands small and far away from continental areas where the weather might be governed by the sea conditions. From comparisons of almost 5000 collocated samples, PW from RO and GB exhibit a global mean difference around 1 mm, root-mean-square deviation about 5 mm and a correlation above 0.9. The 2007-2014 timeseries and the monthly mean RO and GB PW were also I Manuscript prepared under grants CONICET PIP 11220120100034 and ANPCYT PICT 2013-1097. P. Alexander, A. de la Torre, R. Hierro and P. Llamedo are members of CONICET. GPS RO water vapor pressure observations were downloaded from cdaac-ftp.cosmic.ucar.edu, GB GNSS PW data from rda.ucar.edu/datasets/ds721.1 and NCEP and ECMWF reanalyses respectively from www.esrl.noaa.gov/psd/data/gridded and apps.ecmwf.int/datasets.

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“…e performance of these satellite-based products needs to be evaluated over different regions of the world in order to identify retrieval errors and biases [18]. e Central-Western Argentina (CWA) is a region where the interplay between the complex topography and the atmospheric circulation determines a wide range of precipitation features, from intense winter orographic precipitation [19], extreme summer precipitation events leading to the occurrence of landslides along the Andes range [20], and hailstorms over the lowlands [21] to multiannual severe drought events [22,23]. Considering these multiple characteristics over the CWA, the lack of ground observations makes mandatory the use of high-resolution satellite-based precipitation products in order to provide a better understanding of precipitation variability and change.…”

Section: Introductionmentioning

confidence: 99%

Using CHIRPS Dataset to Assess Wet and Dry Conditions along the Semiarid Central-Western Argentina

Rivera

Hinrichs

Marianetti

2019

Advances in Meteorology

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e Climate Hazards group Infrared Precipitation with Stations (CHIRPS) dataset was conceived as a tool for monitoring drought and environmental change over land. Recent validation efforts along South America have assessed its suitability for reproducing the main spatial and temporal features of precipitation. Nevertheless, little has been done regarding the ability of CHIRPS for the assessment of wet and dry conditions, particularly in areas where in situ precipitation records are scarce. In this paper, we investigated the performance of CHIRPS for monitoring wet and dry events along the semiarid Central-Western Argentina. Using the Standardized Precipitation Index (SPI), we compared the CHIRPS database with records from 49 meteorological stations along the study area for the period 1987-2016. Results indicate that the CHIRPS dataset adequately reproduced the temporal variability of SPI on multiple timescales (1 month, 3 months, and 6 months), particularly in the region dominated by warm season precipitation. e large overestimation of the seasonal precipitation in the region dominated by cold season precipitation can introduce errors that are reflected in the performance of CHIRPS over the western portion of the domain. e frequency of wet and dry classes was accurately reproduced by CHIRPS on timescales larger than 1 month (SPI1), given the existence of a wet bias that produces an underestimation of the frequency of zero values. is bias is further translated to the evaluation of the SPI1 during the spatial and temporal assessment of historical dry (1998) and wet (2016) events, especially for the classification of extreme dry/wet months. e results from the evaluation indicate that CHIRPS is a suitable tool for assessing dry and wet conditions for timescales longer than 1 month and can support decision-making process within the hydrometeorological agencies over the region.

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Ground-based GNSS network and integrated water vapor mapping during the development of severe storms at the Cuyo region (Argentina)

Cited by 25 publications

References 44 publications

Sixty Years of Hail Suppression Activities in Mendoza, Argentina: Uncertainties, Gaps in Knowledge and Future Perspectives

Sixty Years of Hail Suppression Activities in Mendoza, Argentina: Uncertainties, Gaps in Knowledge and Future Perspectives

Comparison between GNSS ground-based and GPS radio occultation precipitable water observations over ocean-dominated regions

Using CHIRPS Dataset to Assess Wet and Dry Conditions along the Semiarid Central-Western Argentina

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