Pyroconvection Classification Based on Atmospheric Vertical Profiling Correlation With Extreme Fire Spread Observations

Castellnou, Marc; Bachfischer, Mercedes; Miralles, Marta; Ruiz, Borja; Stoof, Cathelijne R.; Arellano, Jordi Vilà-Guerau de

doi:10.1029/2022jd036920

Cited by 7 publications

(12 citation statements)

References 77 publications

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“…Because pyroconvective cloud formation is a complex phenomenon that depends on atmospheric thermodynamics and fire characteristics, the results presented here are case‐dependent. It is worth noting that in the SCQ case, where the fire spread is downhill, which means the pyroconvective formation is unlikely due to slope‐induced acceleration (Castellnou et al., 2022a, 2022b). We have simulations (not shown) similar to SMKD and SMK (dry and moist conditions) where we increased and decreased the fire heat flux by 50%, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…The sounding data and fire isocrones are provided by Castellnou et al. (2022b). The fuel data are downloaded from lidar‐based fuel layer (González‐Olabarria et al., 2019) on PREVINCAT server (PREVINCAT, 2021).…”

Section: Data Availability Statementmentioning

confidence: 99%

“…The Santa Coloma de Queralt (SCQ) Fire in Catalonia, Spain started on Saturday afternoon, 24 July 2021, at about 14:00Z, in the province of Tarragona (Figure 1a, Castellnou et al., 2022a). The fire was initially driven by northwesterly winds toward the southeast.…”

Section: Case Description Emission Model and Numerical Experimentsmentioning

confidence: 99%

“…Our code developments are an addition to the WRF (version 4.3; National Center for Atmospheric Research, 2021) numerical weather prediction model (https://github.com/wrf-model/WRF/tree/release-v4.3), and they are provided in Data Set S1 along with the input sounding and namelists required to produce simulations in this manuscript. The sounding data and fire isocrones are provided by Castellnou et al (2022b). The fuel data are downloaded from lidar-based fuel layer (González-Olabarria et al, 2019) on PREVINCAT server (PREVINCAT, 2021).…”

Section: Conflict Of Interestmentioning

confidence: 99%

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Characterizing the Role of Moisture and Smoke on the 2021 Santa Coloma de Queralt Pyroconvective Event Using WRF‐Fire

Eghdami

Juliano

Jiménez

et al. 2023

J Adv Model Earth Syst

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Smoke from wildfires or burning biomass directly affects air quality and weather through modulating cloud microphysics and radiation. A simple wildfire emission coupling of black carbon (BC) and organic carbon (OC) with microphysics was implemented using the Weather Research and Forecasting model's fire module. A set of large‐eddy simulations inspired by unique surface and upper atmospheric observations from the 2021 Santa Coloma de Queralt Fire (Spain) were conducted to investigate the influence of background conditions and interactions between atmospheric and fire processes such as fire smoke, ambient moisture, and latent heat release on the formation and evolution of pyroconvective clouds. While the microphysical impact of BC and OC emissions on the dynamics of fire behavior is minimal on short time scales (<6 hr), their presence increased the cloud water content and decreased the rain rates in our case study. In our case study, atmospheric moisture played an important role in the formation and development of pyroconvective clouds, which in turn enhanced the surface winds (8%) and fire spread rate (25%). The influence of fuel moisture on the pyroconvective cloud formation is smaller when compared with the atmospheric moisture content. A better representation of cloud processes can improve the mesoscale forecasts, which is important for better fire behavior modeling.

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Section: Discussionmentioning

confidence: 99%

Section: Data Availability Statementmentioning

confidence: 99%

Section: Case Description Emission Model and Numerical Experimentsmentioning

confidence: 99%

Section: Conflict Of Interestmentioning

confidence: 99%

See 2 more Smart Citations

Characterizing the Role of Moisture and Smoke on the 2021 Santa Coloma de Queralt Pyroconvective Event Using WRF‐Fire

Eghdami

Juliano

Jiménez

et al. 2023

J Adv Model Earth Syst

Self Cite

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“…Castellnou et al. (2022) developed a new four‐part classification for pyroconvection based on atmospheric vertical profiles and extreme fire spread observed during the 2021 summer fire season on the Iberian Peninsula. They distinguished moist and dry convection effects on the atmospheric boundary layer and noted the correlation between vertical updraft velocity and the rate of fire spread.…”

Section: How Does Fire Work? Physical and Chemical Processesmentioning

confidence: 99%

Fire in the Earth System: Introduction to the Special Collection

et al. 2023

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Fire has always been an important component of many ecosystems, but anthropogenic global climate change is now altering fire regimes over much of Earth's land surface, spurring a more urgent need to understand the physical, biological, and chemical processes associated with fire as well as its effects on human societies. In 2020, AGU launched a Special Collection that spanned 10 journals, soliciting papers under the theme “Fire in the Earth System” to encourage state‐of‐the‐art publications in fire‐related science. The completed Special Collection comprises more than 100 papers. Here, we summarize the articles published in this collection, considering them to be grouped into seven themes: paleofire and its ties to climate; evolution of fire patterns in the recent past and the future, including the effects of ongoing climate change; physical (atmospheric) and chemical processes associated with fire; ecosystem effects, including on biogeochemical cycles; physical landscape change after fire and its associated hazards; fire effects on water quality, air quality, and human health; and new methods and technologies applied to fire research.

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In temperate Europe, fire is already here: The case of The Netherlands

Stoof,

Kok,

Cardil Forradellas

et al. 2024

Ambio

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Landscape fires are usually not associated with temperate Europe, yet not all temperate countries record statistics indicating that actual risks remain unknown. Here we introduce new wildfire statistics for The Netherlands, and summarize significant events and fatalities. The period 2017–2022 saw 611 wildfires and 405 ha burned per year, which Copernicus’ European Forest Fire Information System satellite data vastly underestimate. Fires burned more heathland than forest, were small (mean fire size 1.5 ha), were caused by people, and often burned simultaneously, in Spring and in Summer drought. Suppression, restoration and traffic delays cost 3 M€ year−1. Dozens of significant events illustrate fire has never been away and has major societal impact amidst grave concerns for firefighter safety. Since 1833, 31 fatalities were reported. A legal framework is needed to ensure continuity of recordkeeping, as the core foundation of integrated fire management, to create a baseline for climate change, and to fulfill international reporting requirements.

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Pyroconvection Classification Based on Atmospheric Vertical Profiling Correlation With Extreme Fire Spread Observations

Cited by 7 publications

References 77 publications

Characterizing the Role of Moisture and Smoke on the 2021 Santa Coloma de Queralt Pyroconvective Event Using WRF‐Fire

Characterizing the Role of Moisture and Smoke on the 2021 Santa Coloma de Queralt Pyroconvective Event Using WRF‐Fire

Fire in the Earth System: Introduction to the Special Collection

In temperate Europe, fire is already here: The case of The Netherlands

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