Mesoscale heat waves induced by orography

Gladich, Ivan; Gallai, I.; Giaiotti, Dario; Mordacchini, Gp.; Palazzo, A.; Stel, Fulvio

doi:10.5194/asr-2-139-2008

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…This difference may be due in part to the more southerly latitude of the Maltese islands. Orography is another factor that may create both regional and local variances in Mediterranean heat wave, wind, and cyclonic activity (Gladich et al, 2008;Lionello et al, 2006;Sotillo et al, 2003). The Maltese archipelago's relatively small area and low-lying terrain differ greatly from Sicily's larger and much more mountainous area.…”

Section: Temperaturementioning

confidence: 99%

7300 years of vegetation history and climate for NW Malta: a Holocene perspective

et al. 2016

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Abstract. This paper investigates the Holocene vegetation dynamics for Burmarrad in Northwest Malta and provides a pollen-based quantitative palaeoclimatic reconstruction for this centrally located Mediterranean archipelago. The pollen record from this site provides new insight into the vegetation changes from 7280 to 1730 cal BP which correspond well with other regional records. The climate reconstruction for the area also provides strong correlation with southern (below 40 • N) Mediterranean sites. Our interpretation suggests an initially open landscape during the early Neolithic, surrounding a large palaeobay, developing into a dense Pistacia scrubland ca. 6700 cal BP. From about 4450 cal BP the landscape once again becomes open, coinciding with the start of the Bronze Age on the archipelago. This period is concurrent with increased climatic instability (between 4500 and 3700 cal BP) which is followed by a gradual decrease in summer moisture availability in the late Holocene. During the early Roman occupation period (1972-1730 cal BP) the landscape remains generally open with a moderate increase in Olea. This increase corresponds to archaeological evidence for olive oil production in the area, along with increases in cultivated crop taxa and associated ruderal species, as well as a rise in fire events. The Maltese archipelago provides important insight into vegetation, human impacts, and climatic changes in an island context during the Holocene.

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Section: Temperaturementioning

confidence: 99%

7300 years of vegetation history and climate for NW Malta: a Holocene perspective

et al. 2016

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“…An event with similar atmospheric dynamics that occurred to the north of Italy was studied by Gladich et al (2008). They analyze an unusual and sudden increase of temperature during the night that lasted more than 1 h, not associated with thunderstorm processes, but induced by orography.…”

Section: The 2march 2008 Event (Heraklion Event)mentioning

confidence: 99%

Rapid and sudden advection of warm and dry air in the Mediterranean Basin

Bueso

Pino

Barriendos

2014

Nat. Hazards Earth Syst. Sci.

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First Results of the Application of a Citizen Science-Based Mobile Monitoring System to the Study of Household Heating Emissions

et al. 2022

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This work aims at understanding whether a citizen science-based monitoring system could be adequate to detect the effects, in terms of air quality, of solid and liquid fuel combustion for household heating. Citizen science is known to be able to improve the coverage and resolution of measurements at a very low cost. On the other hand, it also has severe limitations. Since low-cost sensors are to be used, measurements are problematic in terms of precision and accuracy. In order to test these aspects, we developed a system named COCAL that supports all the phases of air quality monitoring, from data acquisition, georeferencing, transmission, and processing up to web mapping. In this work, we focus on particulate matter. To address the limitations of the citizen science approach, we carefully tested all the parts of the system and, in particular, the performances of the low-cost sensors. We highlighted that their precision is acceptable, while their accuracy is insufficient. Measurements taken within such a paradigm cannot be used, therefore, as reference values. They can be used, instead, as relative values, in order to identify and to map trends, anomalies and hotspots. We used COCAL extensively in the city of Trieste and were able to identify different behaviors in different areas of the city. In the city center, PM values increase constantly during the day. In the rural suburbs of the city, we observed that PM values are low during the day but increase very rapidly after 5 p.m. It is important to note that, in the city center, household heating is based almost completely on natural gas. In the rural areas, household heating is generally based on wood burning stoves or liquid and solid fuel. A possible explanation of the different behavior between the two areas can then be related to commuters living in the rural areas but working in the city center. When they return home in the evening, they switch on the heating systems triggering the release of large quantities of particulate matter. We were able to map peaks of particulate matter values and highlight that they are initially located within the village centers to later propagate to the areas around them. The possibility of mapping air quality with the coverage and resolution we were able to obtain within a citizen science approach is very encouraging. This can be very helpful in understanding the impact that liquid and solid fuel combustion can have on the environment and human health. In addition, we think that this opportunity can be very important considering the current geopolitical situation where a (hopefully only temporary) shift toward pollutant fuels is expected in the near future.

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Mesoscale heat waves induced by orography

Cited by 3 publications

References 10 publications

7300 years of vegetation history and climate for NW Malta: a Holocene perspective

7300 years of vegetation history and climate for NW Malta: a Holocene perspective

Rapid and sudden advection of warm and dry air in the Mediterranean Basin

First Results of the Application of a Citizen Science-Based Mobile Monitoring System to the Study of Household Heating Emissions

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