{"id":149,"date":"2007-09-12T09:29:07","date_gmt":"2007-09-12T07:29:07","guid":{"rendered":"http:\/\/vandiepenbeeck.org\/?p=149"},"modified":"2007-09-12T09:29:07","modified_gmt":"2007-09-12T07:29:07","slug":"lechelle-saffir-simpson","status":"publish","type":"post","link":"http:\/\/vandiepenbeeck.org\/?p=149","title":{"rendered":"L’\u00e9chelle Saffir-Simpson"},"content":{"rendered":"
C\u2019est en 1969(*) que l\u2019ing\u00e9nieur Herbert Saffir et le m\u00e9t\u00e9orologue Robert Simpson alors directeur du National Hurricane Center ont formul\u00e9 une \u00e9chelle destin\u00e9e \u00e0 graduer les cyclones tropicaux (ouragans, typhons, \u2026). Elle tient compte de la vitesse des vents, des d\u00e9g\u00e2ts possibles, de la pression barom\u00e9trique et de l’augmentation du niveau de la mer.<\/span><\/div>\n
L’\u00e9chelle Saffir-Simpson est une \u00e9chelle de 1 \u00e0 5 bas\u00e9e sur l\u2019intensit\u00e9 de l’ouragan. Elle est utilis\u00e9e pour donner une estimation des dommages potentiels aux biens et du risque d\u2019inondation le long de la c\u00f4te suite au soul\u00e8vement de l\u2019eau sous l\u2019ouragan. La vitesse de vent est le facteur d\u00e9terminant dans l’\u00e9chelle, ainsi que les valeurs de la mont\u00e9e de l\u2019eau. Cette derni\u00e8re d\u00e9pend fortement de la pente de la plate-forme continentale et de la forme du littoral, dans la r\u00e9gion atteinte par la temp\u00eate. Notez que tous les vents utilisent la moyenne am\u00e9ricaine de 1 minute.<\/span><\/font><\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n
<\/div>\n<\/td>\n
\n
Vitesse du vent<\/span><\/div>\n<\/td>\n
\n
pression<\/span><\/div>\n<\/td>\n<\/tr>\n
\n
1<\/span><\/div>\n<\/td>\n
\n
vents de 119 \u00e0 153 km\/h<\/span><\/div>\n<\/td>\n
\n
> 980<\/span><\/div>\n<\/td>\n<\/tr>\n
\n
2<\/span><\/div>\n<\/td>\n
\n
vents de 154 \u00e0 177 km\/h<\/span><\/div>\n<\/td>\n
\n
965-980<\/span><\/div>\n<\/td>\n<\/tr>\n
\n
3<\/span><\/div>\n<\/td>\n
\n
vents de 178 \u00e0 209 km\/h<\/span><\/div>\n<\/td>\n
\n
945-965<\/span><\/div>\n<\/td>\n<\/tr>\n
\n
4<\/span><\/div>\n<\/td>\n
\n
vents de 210 \u00e0 249 km\/h<\/span><\/div>\n<\/td>\n
\n
920-945<\/span><\/div>\n<\/td>\n<\/tr>\n
\n
5<\/span><\/div>\n<\/td>\n
\n
vents sup\u00e9rieurs \u00e0 249 km<\/span><\/div>\n<\/td>\n
\n
< 920<\/span><\/div>\n<\/td>\n<\/tr>\n
<\/p>\n
<\/div>\n<\/td>\n
\n
mont\u00e9e des eaux<\/span><\/div>\n<\/td>\n
\n
<\/div>\n<\/td>\n<\/tr>\n
\n
1<\/span><\/div>\n<\/td>\n
\n
1,2 \u2013 1,5 m<\/font><\/div>\n<\/td>\n
\n
d\u00e9g\u00e2ts mineurs \u00e0 moyens.<\/span><\/div>\n<\/td>\n<\/tr>\n
\n
2<\/span><\/div>\n<\/td>\n
\n
1,5 \u2013 2,4 m<\/font><\/div>\n<\/td>\n
\n
gros dommages en bord de mer; arbres arrach\u00e9s.<\/span><\/div>\n<\/td>\n<\/tr>\n
\n
3<\/span><\/div>\n<\/td>\n
\n
2,4 \u2013 3,7 m<\/font><\/div>\n<\/td>\n
\n
graves d\u00e9g\u00e2ts aux petites constructions en bord de mer; toits arrach\u00e9s.<\/span><\/div>\n<\/td>\n<\/tr>\n
\n
4<\/span><\/div>\n<\/td>\n
\n
3,7 \u2013 5,5 m<\/font><\/div>\n<\/td>\n
\n
graves d\u00e9g\u00e2ts sur la c\u00f4te et \u00e0 l’int\u00e9rieur<\/span><\/div>\n<\/td>\n<\/tr>\n
\n
5<\/span><\/div>\n<\/td>\n
\n
> 5,5 m<\/font><\/div>\n<\/td>\n
\n
<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
(*) D\u2019autres sources donnent comme ann\u00e9e de cr\u00e9ation de l\u2019\u00e9chelle Saffir-Simpson 1971.<\/div>\n","protected":false},"excerpt":{"rendered":"

C\u2019est en 1969(*) que l\u2019ing\u00e9nieur Herbert Saffir et le m\u00e9t\u00e9orologue Robert Simpson alors directeur du National Hurricane Center ont formul\u00e9 une \u00e9chelle destin\u00e9e \u00e0 graduer les cyclones tropicaux (ouragans, typhons, \u2026). Elle tient compte de la vitesse des vents, des d\u00e9g\u00e2ts possibles, de la pression barom\u00e9trique et de l’augmentation du niveau de la mer. L’\u00e9chelle […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-149","post","type-post","status-publish","format-standard","hentry","category-meteo"],"_links":{"self":[{"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=\/wp\/v2\/posts\/149"}],"collection":[{"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=149"}],"version-history":[{"count":0,"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=\/wp\/v2\/posts\/149\/revisions"}],"wp:attachment":[{"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=149"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/vandiepenbeeck.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}