{"id":503,"date":"2025-04-19T13:36:19","date_gmt":"2025-04-19T11:36:19","guid":{"rendered":"https:\/\/www.meteor-oi.re\/?page_id=503"},"modified":"2025-08-19T13:55:46","modified_gmt":"2025-08-19T11:55:46","slug":"precipitations-extremes-a-la-reunion","status":"publish","type":"page","link":"https:\/\/www.meteor-oi.re\/index.php\/meteo\/precipitations-extremes-a-la-reunion\/","title":{"rendered":"Pr\u00e9cipitations extr\u00eames \u00e0 La R\u00e9union"},"content":{"rendered":"\n

La R\u00e9union, \u00eele tropicale de l\u2019oc\u00e9an Indien, est particuli\u00e8rement expos\u00e9e aux pr\u00e9cipitations extr\u00eames, qui figurent parmi les plus intenses au monde. Son relief escarp\u00e9 et son climat influenc\u00e9 par les aliz\u00e9s favorisent d\u2019importants cumuls pluviom\u00e9triques, notamment sur les versants est et sud-est. Ces pr\u00e9cipitations peuvent r\u00e9sulter de plusieurs ph\u00e9nom\u00e8nes m\u00e9t\u00e9orologiques : cyclones tropicaux, d\u00e9pressions, lignes de convergence ou encore orages locaux. L\u2019\u00eele d\u00e9tient plusieurs records mondiaux de pluviom\u00e9trie, comme celui des 24 heures (1825 mm \u00e0 Foc-Foc en 1966 lors du Cyclone Denise), illustrant l\u2019extr\u00eame intensit\u00e9 des pluies pouvant s\u2019abattre sur le territoire, surtout sur le massif du volcan, le Piton de la Fournaise.<\/p>\n\n\n\n

Records de pluviom\u00e9trie du monde et \u00e0 La R\u00e9union<\/h2>\n\n\n\n

En raison des cyclones Denise (1966), Hyacinte (1980) et Gam\u00e8de (2007), La R\u00e9union d\u00e9tient presque (\u00e0 part le record officiel de 48 heures) tous les records du monde reconnus entre 12 heures et 15 jours sur le massif du volcan. Ces records illustrent l\u2019extr\u00eame intensit\u00e9 des pr\u00e9cipitations pouvant toucher l\u2019\u00eele, notamment lors des cyclones tropicaux<\/a>. Le record officiel sur 48 h glissantes n\u2019appartient pas \u00e0 La R\u00e9union mais \u00e0 Cherrapunji en Inde (2493 mm sur 48 h). Situ\u00e9 dans l’\u00c9tat indien du Meghalaya, Cherrapunji est l’une des r\u00e9gions les plus pluvieuses du monde. Son climat de mousson extr\u00eamement humide lui a valu plusieurs records du monde de pr\u00e9cipitations, notamment pour diverses p\u00e9riodes de plusieurs mois (par ex. 2, 3, 4, 5, 6 mois).<\/p>\n\n\n\n

Cependant, il existe aussi un record mondial non officiel pour 48 heures sur le massif du volcan avec 3000,5 mm. Celui-ci a \u00e9t\u00e9 mesur\u00e9 par le g\u00e9ographe Alain Barcelo sur le site Baril 1600 (situ\u00e9 sur les hauteurs de Saint-Philippe) lors de la d\u00e9pression tropicale faible Hutelle en 1993.<\/p>\n\n\n\n

Le tableau ci-dessous compare les records mondiaux et les records de La R\u00e9union. Les marques signifient :
Record officiel de l’OMM<\/mark>
Record mondial \u00e0 La R\u00e9union (mais pas record officiel OMM)<\/mark>
D\u00e9passe le record de M\u00e9t\u00e9o-France \u00e0 La R\u00e9union ou le record officiel de l’OMM<\/mark><\/strong>
V\u00e9racit\u00e9 douteuse<\/mark><\/strong><\/p>\n\n\n\n

\n
P\u00e9riode<\/th>Record mondial<\/th>Record M\u00e9t\u00e9o-France R\u00e9union<\/th>Baril 1600 (Barcelo et al.)<\/th>Record M\u00e9t\u00e9oR-OI<\/th><\/tr><\/thead>
1 min<\/strong><\/td>38 mm (pas reconnu par l’OMM)<\/mark><\/strong>
Barot, Sainte-Anne,
Grande-Terre, Guadeloupe
26 nov. 1970<\/em>
Sources: 1-12, 2-1<\/span><\/em>

31,2 mm<\/mark><\/strong>
Unionville, Maryland, USA
4 juill. 1956<\/em>
Sources: 1-3, 1-7, 3<\/em><\/span><\/em><\/td>		–<\/td>4,5 mm<\/strong>
Sources: 6<\/span><\/em><\/td>		–<\/td><\/tr>
2 min<\/strong><\/td>35,3 mm<\/strong>
Szychowice k. Hrubieszowa, Pologne
13 juin 1956
Sources: 7<\/span><\/em><\/em><\/td>		–<\/td>–<\/td>–<\/td><\/tr>
3 min<\/strong><\/td>62 mm<\/strong>
Portobelo, Col\u00f3n, Panama
29 nov. 1911
Sources: 2-2, 2-3<\/span><\/em><\/em><\/td>		–<\/td>–<\/td>–<\/td><\/tr>
5 min<\/strong><\/td>106 mm<\/strong>
Portobelo, Col\u00f3n, Panama
29 nov. 1911
Sources: 2-2, 2-3<\/span><\/em><\/em><\/em><\/td>		–<\/td>20,5 mm<\/strong>
Sources: 6<\/span><\/em><\/td>		23,4 mm<\/strong>
La Montagne (320 m)
28\/02\/2025 (Cyclone Garance)<\/em><\/td><\/tr>
6 min<\/strong><\/td>?<\/td>30 mm<\/strong>
Salazie
04\/02\/1998<\/em>
Sources: 5<\/span><\/em><\/td>		–<\/td>–<\/td><\/tr>
8 min<\/strong><\/td>126 mm<\/strong>
F\u00fcssen, Bavi\u00e8re, Allemagne
25 mai 1920
Sources: 1-10<\/span><\/em><\/em><\/em><\/td>		–<\/td>–<\/td>–<\/td><\/tr>
10 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>44,7 mm<\/strong>
La Montagne (320 m)
28\/02\/2025 (Cyclone Garance)<\/em><\/td><\/tr>
12 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>–<\/td><\/tr>
14 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>–<\/td><\/tr>
15 min<\/strong><\/td>198 mm (7,80 in)<\/strong>
Plumb Point, Jamaica
12 mai 1916
Sources: 1-10, 1-23<\/span><\/em><\/em><\/em><\/td>		56 mm<\/strong>
Hauts de Sainte-Rose
24\/04\/2018<\/em>
Sources: 5<\/span><\/em><\/td>		–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
18 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>–<\/td><\/tr>
20 min<\/strong><\/td>206 mm (8,10 in)<\/strong>
Curtea de Arges, Roumanie
7 juill. 1889
Sources: 1-4, 1-10, 1-14<\/span><\/em><\/em><\/em><\/td>		–<\/td>61 mm<\/strong>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
24 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>–<\/td><\/tr>
25 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
30 min<\/strong><\/td>280 mm<\/strong>
Sikeshugou, Hebei, Chine
3 juill. 1974
Sources: 1-24<\/span><\/em><\/em><\/em><\/td>		103 mm<\/strong>
Hauts de Sainte-Rose
24\/04\/2018<\/em>
Sources: 5<\/span><\/em><\/td>		82,5 mm<\/strong>
Sources: 6<\/span><\/em><\/td>		111,5 mm<\/mark><\/strong>
La Montagne (320 m)
28\/02\/2025 (Cyclone Garance)<\/em><\/td><\/tr>
35 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
36 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>–<\/td><\/tr>
40 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
42 min<\/strong><\/td>305 mm (12 in)<\/strong>
Holt, Missouri, USA
22 juin 1947
Sources: 1-10, 1-14, 1-15<\/span><\/em><\/em><\/em><\/td>		–<\/td>–<\/td>–<\/td><\/tr>
45 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
48 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>–<\/td><\/tr>
50 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
54 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>–<\/td><\/tr>
55 min<\/strong><\/td>?<\/td>–<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
60 min
1 heure<\/strong><\/td>		420 mm (v\u00e9racit\u00e9 douteuse)<\/mark><\/strong>
Cherrapunji, Meghalaya, Inde
16 juin 1995
Sources: 7<\/span><\/em><\/em><\/em>

401 mm (v\u00e9racit\u00e9 douteuse)<\/mark><\/strong>
Shangdi, Mongolie int\u00e9rieure, Chine
3 juill. 1975
Sources: 1-24, 1-25<\/span><\/em><\/em><\/em>

381 mm<\/strong>
Smethport, Pennsylvania, USA
18 juill. 1942
Sources: 1-9, 1-27<\/span><\/em><\/em><\/em>

305 mm<\/mark><\/strong>
Holt, MO, USA
22 juin 1947
Sources: 3<\/span><\/em><\/em><\/em><\/td>		262 mm<\/strong>
Cilaos (Alt : 1197 m)
29\/02\/1964
(cyclone GISELLE)<\/em>
Sources: 4<\/span><\/em><\/td>		159,5 mm<\/strong>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
72 min
1,5 heures<\/strong><\/td>		440 mm<\/strong>
Gaoj, Gansu, Chine
12 ao\u00fbt 1985
Sources: 1-24<\/span><\/em><\/em><\/em><\/td>		?<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
120 min
2 heures<\/strong><\/td>		489 mm<\/strong>
Yujiawanzi, Mongolie int\u00e9rieure, Chine
19 juill. 1975
Sources: 1-24<\/span><\/em><\/em><\/em><\/em><\/td>		318 mm<\/strong>
Mare \u00e0 Vieille Place
(Alt : 870 m)
04\/02\/1998<\/em>
Sources: 5<\/span><\/em><\/td>		297 mm<\/strong>
28 f\u00e9vr. 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
150 min
2,5 heures<\/strong><\/td>		550 mm<\/strong>
Bainaobao, Hebei, Chine
25 juin 1972
Sources: 1-24<\/span><\/em><\/em><\/em><\/td>		?<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
165 min
2,75 heures<\/strong><\/td>		559 mm<\/strong>
Woodward Ranch (D\u2019Hanis 17 NNW), Texas, USA
31 mai 1935
Sources: 1-5<\/span><\/em><\/em><\/em><\/em><\/td>		–<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
180 min
3 heures<\/strong><\/td>		600 mm<\/strong>
Duanjiazhuang, Hebei, Chine
28 juin 1973
Sources: 1-24<\/span><\/em><\/em><\/em><\/em><\/td>		422 mm<\/strong>
Mare \u00e0 Vieille Place
(Alt : 870 m)
04\/02\/1998<\/em>
Sources: 4<\/span><\/em><\/td>		422 mm<\/strong>
28 f\u00e9vr. 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
240 min
4 heures<\/strong><\/td>		?<\/td>?<\/td>518 mm<\/strong>
28 f\u00e9vr. 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
270 min
4h30 min<\/strong><\/td>		782,3 mm<\/strong>
Smethport, Pennsylvanie, USA
18 juill. 1942
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/td>		?<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
300 min
5 heures<\/strong><\/td>		?<\/td>?<\/td>602,5 mm<\/strong>
27 f\u00e9vr. 1993 au 01 mars 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
360 min
6 heures<\/strong><\/td>		840 mm<\/strong>
Muduocaidang, Mongolie int\u00e9rieure, Chine
1 ao\u00fbt 1977
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em>

830 mm<\/strong>
Linzhuang, Henan, China
7 ao\u00fbt 1975
Sources: 1-20, 1-26<\/span><\/em><\/em><\/em><\/em><\/em><\/td>		690 mm<\/strong>
Mare \u00e0 Vieille Place
(Alt : 870 m)
04\/02\/1998<\/em>
Sources: 4<\/span><\/em><\/td>		668 mm<\/strong>
27 f\u00e9vr. 1993 au 01 mars 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
8 heures<\/strong><\/td>1050 mm<\/strong>
Muduocaidang, Mongolie int\u00e9rieure, Chine
1 ao\u00fbt 1977
Sources: 1-25<\/span><\/em><\/em><\/em><\/em><\/em><\/td>		?<\/td>809 mm<\/strong>
27 f\u00e9vr. 1993 au 01 mars 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
9 heures<\/strong><\/td>1086,9 mm<\/mark><\/strong>
Belouve, La R\u00e9union
28 f\u00e9vr. 1964
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/td>		1086,9 mm<\/mark><\/strong>
Belouve
28\/02\/1964
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/td>		–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
10 heures<\/strong><\/td>1400 mm (v\u00e9racit\u00e9 douteuse)<\/mark><\/strong>
Muduocaidang, Mongolie int\u00e9rieure, Chine
1 ao\u00fbt 1977
Sources: 1-24<\/span><\/em><\/em><\/em><\/em><\/em><\/td>		?<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
12 heures<\/strong><\/td>1400 mm (v\u00e9racit\u00e9 douteuse)<\/mark><\/strong>
Muduocaidang, Mongolie int\u00e9rieure, Chine
1 ao\u00fbt 1977
Sources: 1-24<\/span><\/em><\/em><\/em><\/em><\/em><\/em>

1340,1 mm (pas confirm\u00e9)<\/mark><\/strong>
Belouve, La R\u00e9union
28-29 f\u00e9vr. 1964
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/em>

1144 mm<\/mark><\/strong>
Foc-Foc, La R\u00e9union (Alt : 2290 m)
7 janv. 1966, Cyclone Denise
Sources: 1-3, 1-17, 3, 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>
1340,1 mm (pas confirm\u00e9)<\/mark><\/strong>
Belouve
28-29 f\u00e9vr. 1964
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/em>

1144 mm<\/mark><\/strong><\/strong>
Foc-Foc (Alt : 2290 m)
7 janv. 1966, Cyclone Denise
Sources: 1-3, 1-17, 3, 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		1080,5 mm<\/strong>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
18 heures<\/strong><\/td>1589 mm<\/mark><\/strong>
Foc-Foc, La R\u00e9union (Alt : 2290 m)
7 janv. 1966, Cyclone Denise
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		1589 mm<\/mark><\/strong>
Foc-Foc (Alt : 2290 m)
7 janv. 1966, Cyclone Denise
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		1462,5 mm<\/strong>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
20 heures<\/strong><\/td>1697 mm<\/mark><\/strong>
Foc-Foc, La R\u00e9union (Alt : 2290 m)
7 janv. 1966, Cyclone Denise
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		1697 mm<\/mark><\/strong>
Foc-Foc (Alt : 2290 m)
7 janv. 1966, Cyclone Denise
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
22 heures<\/strong><\/td>1780 mm<\/mark><\/strong>
Foc-Foc, La R\u00e9union (Alt : 2290 m)
7 janv. 1966, Cyclone Denise
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		1780 mm<\/mark><\/strong>
Foc-Foc (Alt : 2290 m)
7 janv. 1966, Cyclone Denise
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
24 heures
1 jour<\/strong><\/td>		1825 mm<\/mark><\/strong>
Foc-Foc, La R\u00e9union (Alt : 2290 m)
7 janv. 1966, Cyclone Denise
Sources: 1-2, 1-3, 1-14, 1-17, 3, 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		1825 mm<\/mark><\/strong>
Foc-Foc (Alt : 2290 m)
7 janv. 1966, Cyclone Denise
Sources: 1-2, 1-3, 1-14, 1-17, 3, 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		1771,5 mm<\/strong>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
48 heures
2 jours<\/strong><\/td>		2493 mm<\/mark><\/strong>
Cherrapunji, Meghalaya, Inde
15 juin 1995
Sources: 1-3, 1-17, 3<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		2489 mm<\/strong>
Commerson (Alt : 2310 m)
26 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		3000,5 mm<\/mark><\/strong>
27 f\u00e9vr. 1993 au 01 mars 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
72 heures
3 jours<\/strong><\/td>		3930 mm<\/mark><\/strong>
Commerson, La R\u00e9union
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-3, 1-19, 3<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		3930 mm<\/mark><\/strong>
Commerson<\/em>
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-3, 1-19, 3<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		3587,5 mm<\/strong>
27 f\u00e9vr. 1993 au 02 mars 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
96 heures
4 jours<\/strong><\/td>		4936 mm<\/mark><\/strong>
Commerson, La R\u00e9union
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-3, 3, 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		4936 mm<\/mark><\/strong>
Commerson
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-3, 3, 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		3982,5 mm<\/strong>
27 f\u00e9vr. 1993 au 03 mars 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		1229,8 mm<\/strong>
GPN (1413 m)
6 au 9 mai 2025
Front froid Sherzio<\/em><\/td><\/tr>
120 heures
5 jours<\/strong><\/td>		4979 mm<\/mark><\/strong><\/strong>
Commerson, La R\u00e9union
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-19<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		4979 mm<\/mark><\/strong>
Commerson
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-19<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		4608 mm<\/strong>
27 f\u00e9vr. 1993 au 04 mars 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
6 jours<\/strong><\/td>5075 mm<\/mark><\/strong>
Commerson, La R\u00e9union
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-19<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		5075 mm<\/mark><\/strong>
Commerson
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-19<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		4785 mm<\/strong>
27 f\u00e9vr. 1993 au 05 mars 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
7 jours
1 semaine<\/strong><\/td>		5400 mm<\/mark><\/strong>
Commerson, La R\u00e9union
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-19<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		5400 mm<\/mark><\/strong>
Commerson
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-19<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		4834 mm<\/strong>
26 f\u00e9vr. 1993 au 05 mars 1993
(HUTELLE, d\u00e9pression tropical faible)<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
8 jours<\/strong><\/td>5510 mm<\/mark><\/strong>
Commerson, La R\u00e9union
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-19<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		5510 mm<\/mark><\/strong>
Commerson
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-19<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		4847,5 mm<\/strong>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
9 jours<\/strong><\/td>5512 mm<\/mark><\/strong>
Commerson, La R\u00e9union
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-19<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		5512 mm<\/mark><\/strong>
Commerson
24 f\u00e9vr. 2007 (cyclone GAMEDE)
Sources: 1-19<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
10 jours<\/strong><\/td>5678 mm<\/mark><\/strong>
Commerson, La R\u00e9union
18 janv. 1980 (cyclone HYACINTHE)
Sources: 1-17, 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		5678 mm<\/mark><\/strong>
Commerson
18 janv. 1980 (cyclone HYACINTHE)
Sources: 1-17, 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
15 jours<\/strong><\/td>6083 mm<\/mark><\/strong>
Commerson, La R\u00e9union
18 janv. 1980 (cyclone HYACINTHE)
Sources: 1-17, 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		6083 mm<\/mark><\/strong>
Commerson
18 janv. 1980 (cyclone HYACINTHE)
Sources: 1-17, 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		5049 mm<\/strong>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
1 mois<\/strong><\/td>9591 mm<\/strong>
Mawsynram, Meghalaya, Inde
1-31 juill. 1984
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em>

9300 mm<\/strong>
Cherrapunji, Meghalaya, Inde
1 juill. 1861
Sources: 1-1, 1-2, 1-14<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		6 177 mm<\/strong>
Commerson (Alt : 2310 m)
Janv. 1980 (cyclone HYACINTHE)
Sources: 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		5901,5 mm<\/strong>
Sources: 6<\/span><\/em><\/td>		2600 mm<\/strong>
GPN (1413 m)<\/em>
17 avril au 16 mai 2024<\/em>
<\/td><\/tr>
2 mois<\/strong><\/td>12767 mm<\/strong>
Cherrapunji, Meghalaya, Inde
1 juin 1861
Sources: 1-1<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		?<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
3 mois<\/strong><\/td>16369 mm<\/strong>
Cherrapunji, Meghalaya, Inde
1 mai 1861
Sources: 1-1<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		?<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
4 mois<\/strong><\/td>18738 mm<\/strong>
Cherrapunji, Meghalaya, Inde
1 avr. 1861
Sources: 1-1<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		?<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
5 mois<\/strong><\/td>20412 mm<\/strong>
Cherrapunji, Meghalaya, Inde
1 avr. 1861
Sources: 1-1<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		?<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
6 mois<\/strong><\/td>22454 mm<\/strong>
Cherrapunji, Meghalaya, Inde
1 avr. 1861
Sources: 1-1<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		?<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
11 mois<\/strong><\/td>22990 mm<\/strong>
Cherrapunji, Meghalaya, Inde
1 janv. 1861
Sources: 1-1<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		?<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr>
12 mois
1 an<\/strong><\/td>		26871 mm<\/strong>
Vig\u00eda de Curvarad\u00f3, Colombie
1974
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em>

26470 mm<\/mark><\/strong>
Cherrapunji, Meghalaya, Inde
1 ao\u00fbt 1860
Sources: 1-1, 1-2, 1-3, 1-14, 3<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		15931 mm<\/strong>
Hauts de Sainte-Rose
(Alt : 820 m)
Ann\u00e9e 1995
Sources: 4<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		18000 mm<\/mark><\/strong>
27\/02\/1993 au 26\/02\/1994<\/em>
Sources: 6<\/span><\/em><\/td>		\u00e0 d\u00e9terminer<\/td><\/tr>
2 ans<\/strong><\/td>43262 mm<\/strong>
Puerto L\u00f3pez de Micay, Colombie
1984-1985
Sources: 7<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em>

40768 mm<\/strong>
Cherrapunji, Meghalaya, Inde
1 janv. 1860
Sources: 1-1<\/span><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/td>		?<\/td>–<\/td>\u00e0 d\u00e9terminer<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>\n\n\n\n

La mesure des pr\u00e9cipitations : Une mesure biais\u00e9e et parfois complexe<\/h2>\n<\/div><\/div>\n\n\n\n

La mesure des pr\u00e9cipitations est essentielle pour comprendre le climat, g\u00e9rer les ressources en eau et pr\u00e9venir les risques naturels<\/a>. Cependant, malgr\u00e9 les avanc\u00e9es technologiques, cette mesure reste sujette \u00e0 divers biais et complexit\u00e9s.<\/p>\n\n\n\n

\u00c9volution des instruments de mesure<\/h3>\n\n\n\n

Depuis l’Antiquit\u00e9, diverses civilisations ont tent\u00e9 de quantifier les pr\u00e9cipitations. En Inde, vers 400 av. J.-C., des bols \u00e9taient utilis\u00e9s pour recueillir l’eau de pluie, aidant \u00e0 estimer les rendements agricoles. Au XVII\u1d49 si\u00e8cle, des innovations majeures ont vu le jour :\u200b<\/p>\n\n\n\n