Dmitri Rouwet
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View article: Methane seepage dynamics and ground heating phenomena in the southern Po Valley: the case study of Santa Maria Nuova (Italy)
Methane seepage dynamics and ground heating phenomena in the southern Po Valley: the case study of Santa Maria Nuova (Italy) Open
Natural reservoirs that release CH4 can substantially increase atmospheric greenhouse gas levels, posing environmental and safety risks. Degassing phenomena in the Emilia-Romagna region (Italy) have been documented across a variety of flui…
View article: Volcanic Radiative Power Retrieval From Moderate‐to‐Low‐Temperature Features Using a Single TIR Band: Validation Using Volcanic Crater Lakes and Hydrothermal Systems
Volcanic Radiative Power Retrieval From Moderate‐to‐Low‐Temperature Features Using a Single TIR Band: Validation Using Volcanic Crater Lakes and Hydrothermal Systems Open
Assessing Radiative Power (RP) output is essential for monitoring and understanding volcanic systems. While Mid‐Infrared channels are used to assess thermal outputs at volcanoes exhibiting effusive activity, Thermal‐InfraRed (TIR) bands ar…
View article: Modeling and observing the Lake Albano dynamics
Modeling and observing the Lake Albano dynamics Open
Lake Albano is a monomictic volcanic crater lake in Central Italy with CO2-rich waters presenting CO2 concentration varying over time. Depending on the period of the year, the lake is characterized by strong stratification or rather overtu…
View article: Forecasting the evolution of the current unrest of Campi Flegrei by defining anomalies through experts’ elicitation
Forecasting the evolution of the current unrest of Campi Flegrei by defining anomalies through experts’ elicitation Open
The Campi Flegrei caldera, Italy, is considered one of the most high-risk volcanic areas on the planet due to its location within the metropolitan area of Naples. Campi Flegrei caldera is currently undergoing unrest. The unrest is linked t…
View article: Vulcano International training Summer School of Geochemistry 
Vulcano International training Summer School of Geochemistry  Open
Vulcano Island, an active closed conduit volcano in south Sicily, hosts from 2018 the Vulcano International Training Summer School of Geochemistry. The basic idea is to share scientific knowledge and experiences in a multi-aspect geochemic…
View article: The Emotion Project:  improvement of the geochemical knowledge on geothermal manifestations in Italy
The Emotion Project:  improvement of the geochemical knowledge on geothermal manifestations in Italy Open
Energy request from renewable sources is increasing due to high energy demand and the need of a more sustainable use of the resources. Among renewable sources, geothermal energy represents a powerful tool to reduce the energy dependence on…
View article: Evaluation of the Hydrogeochemical Characteristics and Heavy Metals Contamination Levels of Shallow Groundwater in the Bafia Agricultural Area, Centre Region Cameroon.
Evaluation of the Hydrogeochemical Characteristics and Heavy Metals Contamination Levels of Shallow Groundwater in the Bafia Agricultural Area, Centre Region Cameroon. Open
Shallow groundwater is an important resource within the framework of potable, continuous, and reliable water supply in the whole of Cameroon, particularly in Bafia, where there is a limited supply of piped-borne water. Increased population…
View article: CO2 budget from a 3D chemical tomography of a degassing volcanic lake (Lagoa das Furnas, São Miguel, Azores)
CO2 budget from a 3D chemical tomography of a degassing volcanic lake (Lagoa das Furnas, São Miguel, Azores) Open
We here present a 3D mapping of the dissolved CO2 at Lagoa das Furnas (São Miguel Island, Azores) obtained with an infrared-based probe that measures the partial pressure of CO₂ gas dissolved in liquids, and a multi-parametric probe to mea…
View article: Evidence of “Lake Nyos-type” behavior in the geological record: A review
Evidence of “Lake Nyos-type” behavior in the geological record: A review Open
In this article, volcanic lakes that have shown sedimentological evidence of limnic eruptions (i.e., Nyos-type gas bursts) are reviewed. Indeed, to better assess “Nyos-type lakes” related hazards, paleolimnology offers a promising tool to …
View article: Fluid-mineral dynamics at the Rincón de la Vieja volcano—hydrothermal system (Costa Rica) inferred by the study of major, minor and rare earth elements in the hyperacid crater lake
Fluid-mineral dynamics at the Rincón de la Vieja volcano—hydrothermal system (Costa Rica) inferred by the study of major, minor and rare earth elements in the hyperacid crater lake Open
Volcanic lakes are complex natural systems and their chemical composition is related to a myriad of processes. The chemical composition of major, minor, Rare Earth Elements (REE) and physico-chemical parameters at the hyperacid crater lake…
View article: Sulfur origin and flux variations in fumarolic fluids of Vulcano Island, Italy
Sulfur origin and flux variations in fumarolic fluids of Vulcano Island, Italy Open
A sharp increase in volatiles, especially SO 2 fluxes from the solfataric plume and diffuse CO 2 from the soils of the La Fossa crater area, started in June 2021, and subsequently from the Levante Bay area, suggests renewed unrest at Vulca…
View article: Global thermal spring distribution and relationship to endogenous and exogenous factors
Global thermal spring distribution and relationship to endogenous and exogenous factors Open
In the last decades, the enormous potential for direct geothermal heat from aquifers attracted special attention, particularly toward those thermal springs indicating areas in which exploitation of geothermal energy might be economically f…
View article: Global thermal spring distribution and relationship to endogenous and exogenous factors
Global thermal spring distribution and relationship to endogenous and exogenous factors Open
Here we present digitization and analysis of the thermal springs of the world dataset compiled by Gerald Ashley Waring in 1965 into a collection of analog maps. We obtain the geographic coordinates of ~6,000 geothermal spring areas, includ…
View article: Rare Earth Elements Variations in a Hyperacid Crater Lake and Their Relations With Changes in Phreatic Activity, Physico-Chemical Parameters, and Chemical Composition: The Case of Poás Volcano (Costa Rica)
Rare Earth Elements Variations in a Hyperacid Crater Lake and Their Relations With Changes in Phreatic Activity, Physico-Chemical Parameters, and Chemical Composition: The Case of Poás Volcano (Costa Rica) Open
Decades of geochemical monitoring at active crater lakes worldwide have confirmed that variations in major elements and physico-chemical parameters are useful to detect changes in volcanic activity. However, it is still arduous to identify…
View article: Volcanic Lakes in Africa: The VOLADA_Africa 2.0 Database, and Implications for Volcanic Hazard
Volcanic Lakes in Africa: The VOLADA_Africa 2.0 Database, and Implications for Volcanic Hazard Open
Volcanic lakes pose specific hazards inherent to the presence of water: phreatic and phreatomagmatic eruptions, lahars, limnic gas bursts and dispersion of brines in the hydrological network. Here we introduce the updated, interactive and …
View article: Carbon Dioxide in Lake Nyos, Cameroon, Estimated Quantitatively From Sound Speed Measurements
Carbon Dioxide in Lake Nyos, Cameroon, Estimated Quantitatively From Sound Speed Measurements Open
Gases dissolved in the deep water of lakes can pose a hazard when extreme concentrations are reached. A sudden release of large amounts of gas can cost the lives of humans living in the neighbourhood, as happened at Lake Nyos in 1986. Sinc…
View article: New Clues to Untangle the Question: Was the Volcanic Eruption Triggered by the Earthquake?
New Clues to Untangle the Question: Was the Volcanic Eruption Triggered by the Earthquake? Open
Understanding the cause/effect relationship between tectonic earthquakes and volcanic eruptions is a striking topic in Earth Sciences. Volcanoes may erupt due to the impact of seismic waves (i.e. dynamic stress) and changes in the stress f…
View article: Gas-sensors-equipped drone measurements of volcanic plume gas composition and flux at Pisciarelli, Campi Flegrei, Italy
Gas-sensors-equipped drone measurements of volcanic plume gas composition and flux at Pisciarelli, Campi Flegrei, Italy Open
<p>The fumarolic field of Pisciarelli is the most active vent of the Campi Flegrei caldera, a volcano in the metropolitan area of Naples (Italy) in a current state of unrest. Recent studies have identified a clear escalation of degas…
View article: Response of a Hydrothermal System to Escalating Phreatic Unrest the Case of Turrialba and Irazú in Costa Rica (2007-2012)
Response of a Hydrothermal System to Escalating Phreatic Unrest the Case of Turrialba and Irazú in Costa Rica (2007-2012) Open
This study presents the first hydrogeochemical model of the hydrothermal systems of Turrialba and Irazú volcanoes in central Costa Rica, manifested as thermal springs, summit crater lakes, and fumarolic degassing at both volcanoes. Our per…
View article: Chemical composition of the evaporative degassing plume at Te Wai a Moe crater lake (Ruapehu, New Zealand)
Chemical composition of the evaporative degassing plume at Te Wai a Moe crater lake (Ruapehu, New Zealand) Open
In this study, we present the chemical composition (CO 2 /SO 2 , CO 2 /H 2 S ratios) of the gas plume originating from Te Wai a Moe crater lake surface, Ruapehu Volcano, New Zealand, by the first MicroGAS measurements (i.e. a "mini" MultiG…
View article: CO2 and H2S Degassing at Fangaia Mud Pool, Solfatara, Campi Flegrei (Italy): Origin and Dynamics of the Pool Basin
CO2 and H2S Degassing at Fangaia Mud Pool, Solfatara, Campi Flegrei (Italy): Origin and Dynamics of the Pool Basin Open
The Fangaia mud pool provides a “window” into the hydrothermal system underlying the degassing Solfatara crater, which is the most active volcanic centre inside the restless Campi Flegrei caldera, Southern Italy. The present study aimed at…
View article: New insights into the degassing dynamics of Lago Albano (Colli Albani volcano, Rome, Italy) during the last three decades (1989-2019)
New insights into the degassing dynamics of Lago Albano (Colli Albani volcano, Rome, Italy) during the last three decades (1989-2019) Open
With this study a nine-year hiatus (May 2010-April 2019) in the quantification of the CO2 content of Lago Albano by our working group has been resolved through the acquisition and analysis from two new field campaigns. Based on a CO2 budge…
View article: Global-scale control of extensional tectonics on CO2 earth degassing
Global-scale control of extensional tectonics on CO2 earth degassing Open
Earth degassing of CO 2 -rich fluids has been proven to contribute significantly to the global carbon budget. The presence of ubiquitous outgassing reveals some degree of permeability of the crust that often coincides with seismically acti…