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See detailLe climat de vallée en Haute-Belgique : Analyse en fonction des types de temps
Erpicum, Michel ULg

in Bulletin de la Société Géographique de Liège (1979), 15

Detailed reference viewed: 20 (5 ULg)
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See detailLe climat du Québec : un passé pour quel avenir ?
Boreux, Jean-Jacques ULg; Bernier, J.; Perreault, L.

Conference (2006)

Detailed reference viewed: 25 (6 ULg)
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See detailClimat et paysage : la visibilité, élément méconnu du climat
Erpicum, Michel ULg; Binard, M.

in Notes de Recherches de la Société géographique de Liège (1987), 8

Detailed reference viewed: 8 (4 ULg)
See detailLe climat
Alexandre, Jean ULg; Erpicum, Michel ULg; Vernemmen, C.

in Denis, J. (Ed.) Géographie de la Belgique (1992)

Detailed reference viewed: 36 (9 ULg)
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See detailClimat, race, caractère national et langage chez James Dunbar (1780). Un cas journalistique de transmission des "Lumières écossaises tardives".
Droixhe, Daniel ULg; Collart, Muriel

in Lumières (2011), 17(2e semestre), 77-99

What is Dunbar's position towards Dubos', Montesquieu's and Ferguson's climatology and environmental influence on race? To which extent did he suscribe to Helvetius's and Hume's skeptical considerations ... [more ▼]

What is Dunbar's position towards Dubos', Montesquieu's and Ferguson's climatology and environmental influence on race? To which extent did he suscribe to Helvetius's and Hume's skeptical considerations about this determination? We link this opposition to the one, established by Z. Sternhell, between a mere "Enlightement" associating Locke and Kant and a pre-romantic anti-Enlightenment illustrated by Burke or Herder. We consider the reception of Dunbar's Essays in the French, British and German scientific press. [less ▲]

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See detailCLIMAT: DES BOULEVERSEMENTS CONSTATES (2012)
Ozer, Pierre ULg

Scientific conference (2012, January 17)

17 janvier 2012 : Climat, des bouleversements constatés Docteur en géographie à l’Université de Liège, spécialisé sur les problèmes liés à la désertification, aux catastrophes naturelles et à leur gestion ... [more ▼]

17 janvier 2012 : Climat, des bouleversements constatés Docteur en géographie à l’Université de Liège, spécialisé sur les problèmes liés à la désertification, aux catastrophes naturelles et à leur gestion, et à de nombreux aléas climatiques, Pierre OZER exposera l’évolution du climat, en faisant le lien entre les travaux du GIEC (Groupe d’experts Intergouvernemental sur l’Evolution du Climat) et de l’UNFCCC (Convention Cadre des Nations Unies sur les Changements Climatiques). A travers cette démonstration il montrera le poids de ces travaux au cours des négociations internationales (passées, actuelles et à venir). [less ▲]

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See detailClimat: nous n'avons pas de temps à perdre
Berger, A; Callens, I; Bouckaert, T et al

Article for general public (2012)

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See detailA climate analysis tool for passive heating and cooling strategies in hot humid climate based on Typical Meteorological Year data sets
Nguyen, Anh Tuan ULg; Reiter, Sigrid ULg

in Energy & Buildings (2014), 68(Part C), 756-763

Through a newly developed climate analysis tool, this paper examines the potential of improving thermal comfort under the climates of Vietnam thanks to passive strategies. A Building climatic chart for ... [more ▼]

Through a newly developed climate analysis tool, this paper examines the potential of improving thermal comfort under the climates of Vietnam thanks to passive strategies. A Building climatic chart for Vietnamese was proposed based on Fanger’s theory [1] and the comfort zone of this chart was then extended by calculating the effects of passive heating and cooling strategies. Typical Meteorological Year weather data are used for extracting and graphically printing of hourly environmental parameters on the psychrometric chart and for climate analysis, subsequently. The limitation and the scope of this method are also specified. The climates of three climatic regions in Vietnam have been used as case studies using all year, seasonal and monthly analysis. The results show that natural ventilation is an effective cooling solution as thermal comfort improvement varies with the climatic zones, increasing from 24.8% in Hanoi, 22.1% in Danang to 32.0% in Hochiminh city. Meanwhile, passive solar heating is only effective under the climate of Hanoi. Direct evaporative cooling also shows great cooling potential for comfort improvement but probable elevated humidity is not expected. Total possible comfort in a year of each location indicates that further climate modification methods are inevitable to achieve comfort during extreme weather conditions, especially in Hanoi. [less ▲]

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See detailClimate and biogeochemical response to a rapid melting of the West-Antarctic Ice Sheet during interglacials and implications for future climate
Menviel, L.; Timmermann, A.; Timm, O. et al

in Paleoceanography (2010), 25

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See detailClimate and emotion regulation: is there a role for “climatotherapy” in the sustainable development of mental health ?
Desseilles, Martin ULg; Duclos, Catherine; Flohimont, Valérie et al

in Behavioral and Brain Sciences (2013), 36(5), 23-24

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See detailClimate and marine carbon cycle response to changes in the strength of the Southern Hemispheric westerlies
Menviel, L.; Timmermann, A.; Mouchet, Anne ULg et al

in Paleoceanography (2008), 23(4),

It has been previously suggested that changes in the strength and position of the Southern Hemisphere westerlies could be a key contributor to glacial-interglacial atmospheric CO2 variations. To test this ... [more ▼]

It has been previously suggested that changes in the strength and position of the Southern Hemisphere westerlies could be a key contributor to glacial-interglacial atmospheric CO2 variations. To test this hypothesis, we perform a series of sensitivity experiments using an Earth system model of intermediate complexity. A strengthening of the climatological mean surface winds over the Southern Ocean induces stronger upwelling and increases the formation of Antarctic Bottom Water. Enhanced Ekman pumping brings more dissolved inorganic carbon (DIC)-rich waters to the surface. However, the stronger upwelling also supplies more nutrients to the surface, thereby enhancing marine export production in the Southern Hemisphere and decreasing the DIC content in the euphotic zone. The net response is a small atmospheric CO2 increase (similar to 5 ppmv) compared to the full glacial-interglacial CO2 amplitude of similar to 90 ppmv. Roughly the opposite results are obtained for a weakening of the Southern Hemisphere westerly winds. [less ▲]

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See detailClimate and Security: Evidence, Emerging Risks and a New Agenda
Gemenne, François ULg; Barnett, Jon; Adger, W. Neil et al

in Climatic Change (2014), 123(1), 1-9

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See detailClimate and Security: Evidence, Emerging Risks and a New Agenda
Gemenne, François ULg; Adger, Neil; Barnett, Jon et al

in Climatic Change (2014)

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See detailClimate change impacts on groundwater resources: modelled deficits in a chalky aquifer, Geer basin, Belgium
Brouyère, Serge ULg; Carabin, Guy; Dassargues, Alain ULg

in Hydrogeology Journal (2004), 12(2), 123-134

An integrated hydrological model (MOHISE) was developed in order to study the impact of climate change on the hydrological cycle in representative water basins in Belgium. This model considers most ... [more ▼]

An integrated hydrological model (MOHISE) was developed in order to study the impact of climate change on the hydrological cycle in representative water basins in Belgium. This model considers most hydrological processes in a physically consistent way, more particularly groundwater flows which are modelled using a spatially distributed, finite-element approach. Thanks to this accurate numerical tool, after detailed calibration and validation, quantitative interpretations can be drawn from the groundwater model results. Considering IPCC climate change scenarios, the integrated approach was applied to evaluate the impact of climate change on the water cycle in the Geer basin in Belgium. The groundwater model is described in detail, and results are discussed in terms of climate change impact on the evolution of groundwater levels and groundwater reserves. From the modelling application on the Geer basin, it appears that, on a pluriannual basis, most tested scenarios predict a decrease in groundwater levels and reserves in relation to variations in climatic conditions. However, for this aquifer, the tested scenarios show no enhancement of the seasonal changes in groundwater levels. [less ▲]

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See detailClimate change simulation in continental Antarctica using Open-Top Chambers
Mano, Marie-José ULg; Namsaraev, Zorigto; Gorodetskaya, Irina et al

Poster (2012, July)

In continental Antarctica, the environnmental conditions are extreme and only microbial organisms can withstand them. Currently, the majority of OTCs experiments are being held in Maritime Antarctica but ... [more ▼]

In continental Antarctica, the environnmental conditions are extreme and only microbial organisms can withstand them. Currently, the majority of OTCs experiments are being held in Maritime Antarctica but it would be interesting to have such data for the continental part of Eastern Antarctica. To monitor the response of the microbial communities to local simulations of climate change, 8 Open-Top Chambers (OTC) were installed close to the Princess Elisabeth station, in the Sor Rondane Mountains in January 2010. They are located on the Utsteinen ridge, the Tanngarden granite outcrop, the Teltet nunatak and the fourth nunatak of the Pingvinane range. In each location, two OTCs and a control area were established. Temperature and humidity loggers were installed inside the OTCs and outside, in the control areas, to estimate the environmental changes induced by the OTCs. [less ▲]

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See detail"Climate change" and vulnerability analysis: poor will become poorer
Ozer, Pierre ULg

Conference (2013, November 07)

The recent Intergovernmental Panel on Climate Change’s Fifth Assessment Report (IPCC-AR5) considers new evidence of climate change based on many independent scientific analyses from observations of the ... [more ▼]

The recent Intergovernmental Panel on Climate Change’s Fifth Assessment Report (IPCC-AR5) considers new evidence of climate change based on many independent scientific analyses from observations of the climate system, paleoclimate archives, theoretical studies of climate processes and simulations using climate models. “Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia. The atmosphere and ocean have warmed, the amounts of snow and ice have diminished, sea level has risen, and the concentrations of greenhouse gases have increased”. “Changes in many extreme weather and climate events have been observed since about 1950. It is very likely that the number of cold days and nights has decreased and the number of warm days and nights has increased on the global scale”. “It is likely that the frequency of heat waves has increased”. “There are likely more land regions where the number of heavy precipitation events has increased than where it has decreased”. “The frequency or intensity of heavy precipitation events has likely increased”. In the meantime, it is now well known that climate change consequences (increasing magnitude and frequency of droughts, floods, storms and/or coastal erosion) will mainly impact the most vulnerable. Although there are multiple ways to define vulnerability, we here define vulnerability as the exposure of individuals or collective groups to livelihood stress as a result of the impacts of such climate change and consecutive socioeconomic and environmental changes. In the context of this paper, we will focus on natural disasters induced by “climate change”. We will travel across developing countries to illustrate the increasing vulnerability of the poor and the way they –sometimes– develop effective adaptation responses. We conclude that, for many reasons (mainly the protection of individual, financial and/or political interests), the poor will become poorer. [less ▲]

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See detailClimate control of terrestrial carbon exchange across biomes and continents
Yi, Chuixiang; Ricciuto, Daniel; Li, Runze et al

in Environmental Research Letters (2010), 5(3),

Understanding the relationships between climate and carbon exchange by terrestrial ecosystems is critical to predict future levels of atmospheric carbon dioxide because of the potential accelerating ... [more ▼]

Understanding the relationships between climate and carbon exchange by terrestrial ecosystems is critical to predict future levels of atmospheric carbon dioxide because of the potential accelerating effects of positive climate-carbon cycle feedbacks. However, directly observed relationships between climate and terrestrial CO2 exchange with the atmosphere across biomes and continents are lacking. Here we present data describing the relationships between net ecosystem exchange of carbon (NEE) and climate factors as measured using the eddy covariance method at 125 unique sites in various ecosystems over six continents with a total of 559 site-years. We find that NEE observed at eddy covariance sites is (1) a strong function of mean annual temperature at mid-and high-latitudes, (2) a strong function of dryness at mid-and low-latitudes, and (3) a function of both temperature and dryness around the mid-latitudinal belt (45 degrees N). The sensitivity of NEE to mean annual temperature breaks down at similar to 16 degrees C (a threshold value of mean annual temperature), above which no further increase of CO2 uptake with temperature was observed and dryness influence overrules temperature influence. [less ▲]

Detailed reference viewed: 188 (3 ULg)