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description Publicationkeyboard_double_arrow_right Book 2015 ItalyPublisher:L'Harmattan Authors: Luc Descroix; Saliou Djiba; Tidiane Sané;Vieri Tarchiani;
Vieri Tarchiani
Vieri Tarchiani in OpenAIREhandle: 20.500.14243/309721
Ces actes de l'atelier scientifique "Eaux et sociétés face au changement climatique dans le bassin de la Casamance" est une occasion d'échanges entre les institutions de recherche actives dans la région pour faire le point sur les recherches récentes sur les changements climatiques et hydrologiques et leurs impacts environnementaux, agricoles et sociaux, y compris les stratégies d'adaptation et de minimisation des risques, avec focus sur mangrove, riziculture, érosion côtière, salinisation des eaux et des sols dans la bassin du fleuve Casamance.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2018 ItalyPollo A; Rinaldi S; Zampollo A;Chiarle M;
Fratianni S;Chiarle M
Chiarle M in OpenAIRENigrelli G;
Nigrelli G
Nigrelli G in OpenAIREhandle: 20.500.14243/369509
Air temperature is one of the most important variables of high altitude mountain climate, however it is often difficult to measure it because of the shortage of active weather stations. In order to estimate this variable locally and accurately, it may be useful to refer to data from the lowest altitude weather stations and to apply the local vertical thermal gradient. From semi-hourly or hourly temperatures, monthly and seasonal vertical thermal gradients were calculated. In all cases, we obtained different values from the standard thermal gradient: they oscillate on average between -1.2 ° C / 100 m and 1.9 ° C / 100 m. The average monthly and seasonal values vary considerably between the pairs of stations studied. A better knowledge of the temperature of high altitude zones allows the realization of models of spatial distribution of temperatures at fine scales, which are crucial for scientific research.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Part of book or chapter of book 2016 ItalyPublisher:L'Harmattan, Paris, FRA Authors: Maurizio Bacci (1) Katiellou Gatpia Lawan (2);Le Niger est soumis à un climat de type sahélien et il est caractérisé par une pluviométrie faible, variable dans l'espace et dans le temps, des températures élevées et des vents violents, tendant à accentuer son aridité. Le pays subit un processus de désertification, parfois irréversible, accentué depuis une trentaine d'années. Les raisons de cette évolution tiennent à deux facteurs convergents : série de sécheresses qui se sont succédées au Sahel depuis la fin des années 60 (1973-1974, 1983-1984 et 2004-2005) et accroissement de la population avec un taux annuel qui dépasse le 3% (PANA 2006). La production agricole, structurellement vulnérable aux risques climatiques, subit des pertes plus ou moins importantes selon la disponibilité d'eau et les stratégies de mitigation mises en place par les agriculteurs. Les retards dans l'installation de la saison des pluies engendrent des risques d'achèvement du cycle de la culture du mil et du sorgho, cycle que dans la région est d'environ 90-120 jours, et ils produisent aussi des difficultés d'organisation du travail des champs. Le but du chapitre est fournir un cadre climatique adressé aux risques agronomiques des céréales. Ce chapitre analyse les conditions climatiques qui influencent les principales cultures céréalières de la région Tillabéri, notamment le mil et le sorgho.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2023 ItalyAuthors: Girolamo PANOZZO;Paolo BISON;
Abdramane BA;Paolo BISON
Paolo BISON in OpenAIREStefano ROSSI;
Stefano ROSSI
Stefano ROSSI in OpenAIREhandle: 20.500.14243/464282
Le transport réfrigéré de denrées périssables en Europe est réglementée par l'ATP. Cet accord, publié en 1970, est entré en vigueur en 1976 après ratification par les cinq premiers pays signataires. En fait, l'ATP est conçue pour l'Europe centrale. Par conséquent, pour une utilisation dans des climats différents (Afrique du Nord, Tropique, Equateur,...), vous devez prendre en compte les différents paramètres pour répondre correctement à des conditions climatiques différentes. La charge thermique d'un véhicule isolé est déterminée par échange convectif avec l'air et par le rayonnement solaire direct et indirect (rayonnement des surfaces planes environnants chauffées par le soleil). Ces deux facteurs sont fonction de la latitude et modifient les bilans thermiques d'une caisse isolée par rapport à la situation des pays tempérés. Nous choisissons 5 emplacements d'échantillons pour lesquels calculer la charge thermique maximale (Tableau 1). Prenons le pire des cas pour la charge thermique: un véhicule en stationnement, en plein soleil, qui est affecté par l'irradiation de l'asphalte. Sur la base de tableau ci-dessus dans les pays chauds (situation intermédiaire entre Nairobi et Bamako), on devrait demander une catégorie de véhicules avec une super isolation plus renforcée que celles actuellement en cours d'utilisation. Vous pourriez penser à un changement de format de palette permettant d'augmenter l'épaisseur des parois isolées. Cette solution permettrait d'utiliser les courants matériaux d'isolation (polyuréthane et le polystyrène) ou d'utiliser des matériaux biologiques natifs. The refrigerated transport of perishable goods in Europe is regulated by the ATP. This agreement, issued in 1970, entered into force in 1976 after ratification by the first five signatory countries. In fact, the ATP is designed for Central Europe. Therefore, for the use in different climates (North Africa, Tropic, Equator, etc.), the parameters to respond correctly to the different climatic conditions should be taken into account. The thermal load of an insulated vehicle is determined by convective exchange with the air and by direct and indirect solar radiation (radiation from surrounding flat surfaces heated by the sun). These two factors are a function of the latitude and modify the heat balance of an insulated box in comparison to the scenario in temperate countries. We choose five sample locations for which to calculate the maximum heat load (Table 1). We take the worst case for calculating the thermal load: a parked vehicle, in direct sunlight, which is affected by the irradiation of the asphalt. Based on the table above in hot countries (intermediate situation between Nairobi and Bamako), a category of vehicles with more reinforced insulation should be preferred to those currently in use. A change in pallet format to increase the thickness of the insulated walls could be proposed. This solution would make it possible to use common insulation materials (polyurethane and polystyrene) or to use native biological materials.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Part of book or chapter of book 2016 ItalyPublisher:L'Harmattan, Paris, FRA Authors: Maurizio Bacci (1) Katiellou Gatpia Lawan (2) Moussa Mouhaimouni (2);La plus part de la région Tillabéri au Niger (89 623 km2, 2.7 millions d'habitants au 2012 selon INS 2014) est aride et semidésertique. La région est l'une des zones les plus chaudes du globe. Les dernier record de température du Pays est de 48,3°C et a été observé le 7 mai 2010 à Tillabéri, chef-lieu de la région. La pluviométrie est concentrée dans une seule saison humide entre juin et septembre avec des valeurs comprises entre 250 mm et 700 mm en moyenne par an avec un gradient sud-nord. La région a été frappée par plusieurs catastrophes hydrométéorologiques dans les dernières années. Le traitement du risque catastrophe à la méso et micro échelle nécessite une identification scientifique de l'aléa climatique pour mesurer et hiérarchiser les risques et mieux identifier les mesures de réduction. L'objectif du chapitre est de caractériser la dynamique actuelle et future du climat de la région Tillabéri. Par conséquent le chapitre fait l'état du climat (précipitations, températures et phénomènes extrêmes), des changements observés au fil du temps et des scénarios futurs.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Book 2016 ItalyPublisher:L'Harmattan handle: 20.500.14243/309717
Dans le Sahel de l'Ouest, la planification climatique n'a guère progressé. Cet ouvrage propose de renforcer la planification locale avec des outils d'aide à la décision. Le cas d'application est la région de Tillabéri au Niger, avec la ville de Niamey en son coeur : 95000 km2 et 4 millions d'habitants, déjà frappés par des inondations et des sécheresses catastrophiques. Le livre caractérise le climat, présente les changements attendus aux horizons 2025 et 2050.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2016 ItalyPublisher:L'Harmattan, Paris, FRA Authors: Maurizio Bacci (1) Mbaye Diop (2);Una caratterizzazione del Clima della regione della Casamance in Senegal che è una delle zone meno sviluppate del paese.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
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