Risques de gel accru liés à la présence d’ouvrages linéaires en remblai
By radiativ weather (weak wind and clear sky), an embankment located in below slope level generates an obstacle with the natural flow of the cold air and it develops the formation of cold air lake. In spring, this obstacle can increase the frost risk for the vulnerable cultures (vine, fruit trees......
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| Format: | Article |
| Language: | fra |
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Pôle de Recherche pour l'Organisation et la diffusion de l'Information Géographique
2008-02-01
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| Series: | EchoGéo |
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| Online Access: | https://journals.openedition.org/echogeo/1052 |
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| _version_ | 1832579030739582976 |
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| author | Hervé Quenol Gérard Beltrando Sébastien Bridier |
| author_facet | Hervé Quenol Gérard Beltrando Sébastien Bridier |
| author_sort | Hervé Quenol |
| collection | DOAJ |
| description | By radiativ weather (weak wind and clear sky), an embankment located in below slope level generates an obstacle with the natural flow of the cold air and it develops the formation of cold air lake. In spring, this obstacle can increase the frost risk for the vulnerable cultures (vine, fruit trees...). Weather measurements on fine scales and embankment simulation (with a plastic cover or in a GIS) permit to evaluate the temperature difference after the embankment implantation. The examples presented here are the impact of the embankments of high speed lines of the East European TGV (in the Champagne vineyard) and of the Mediterranean TGV (in orchards of Durance Valley). The results show a temperature difference of several degrees and also a longer stagnation of cold air surface upstream of the embankment, which can cause the buds destruction. With the importance of the foreseeable problems, the building owner proposed installations in order to reduce this additional risk. |
| format | Article |
| id | doaj-art-d62f7cc1246b4f5ca9b58bbe21c5a207 |
| institution | Kabale University |
| issn | 1963-1197 |
| language | fra |
| publishDate | 2008-02-01 |
| publisher | Pôle de Recherche pour l'Organisation et la diffusion de l'Information Géographique |
| record_format | Article |
| series | EchoGéo |
| spelling | doaj-art-d62f7cc1246b4f5ca9b58bbe21c5a2072025-01-30T12:45:56ZfraPôle de Recherche pour l'Organisation et la diffusion de l'Information GéographiqueEchoGéo1963-11972008-02-01110.4000/echogeo.1052Risques de gel accru liés à la présence d’ouvrages linéaires en remblaiHervé QuenolGérard BeltrandoSébastien BridierBy radiativ weather (weak wind and clear sky), an embankment located in below slope level generates an obstacle with the natural flow of the cold air and it develops the formation of cold air lake. In spring, this obstacle can increase the frost risk for the vulnerable cultures (vine, fruit trees...). Weather measurements on fine scales and embankment simulation (with a plastic cover or in a GIS) permit to evaluate the temperature difference after the embankment implantation. The examples presented here are the impact of the embankments of high speed lines of the East European TGV (in the Champagne vineyard) and of the Mediterranean TGV (in orchards of Durance Valley). The results show a temperature difference of several degrees and also a longer stagnation of cold air surface upstream of the embankment, which can cause the buds destruction. With the importance of the foreseeable problems, the building owner proposed installations in order to reduce this additional risk.https://journals.openedition.org/echogeo/1052arboriculturemicro-weather embankmentclimate riskvine growingGIS |
| spellingShingle | Hervé Quenol Gérard Beltrando Sébastien Bridier Risques de gel accru liés à la présence d’ouvrages linéaires en remblai EchoGéo arboriculture micro-weather embankment climate risk vine growing GIS |
| title | Risques de gel accru liés à la présence d’ouvrages linéaires en remblai |
| title_full | Risques de gel accru liés à la présence d’ouvrages linéaires en remblai |
| title_fullStr | Risques de gel accru liés à la présence d’ouvrages linéaires en remblai |
| title_full_unstemmed | Risques de gel accru liés à la présence d’ouvrages linéaires en remblai |
| title_short | Risques de gel accru liés à la présence d’ouvrages linéaires en remblai |
| title_sort | risques de gel accru lies a la presence d ouvrages lineaires en remblai |
| topic | arboriculture micro-weather embankment climate risk vine growing GIS |
| url | https://journals.openedition.org/echogeo/1052 |
| work_keys_str_mv | AT hervequenol risquesdegelaccruliesalapresencedouvrageslineairesenremblai AT gerardbeltrando risquesdegelaccruliesalapresencedouvrageslineairesenremblai AT sebastienbridier risquesdegelaccruliesalapresencedouvrageslineairesenremblai |