RAIN GAUGE NETWORK OVER THE MESOSCALE OBSERVATORY OF THE Upper Oueme Hydrometeorological Observatory in Benin (OHHVO*) ------------------------------------------------------------- * OHHVO : Observatoire Hydrom‰t‰orologique de la Haute Vall‰e de l'Ou‰m‰. Location (Cf. map in Streamgauge_Network.BMP): -------------------------------------------- The catchment basin of the Upper Valley of Ou‰m‰ in Benin covers 14287 km™ approximatly 1.5—E to 2.5—E 9—N to 10—N quadrangle. It includes the sub-catchment of the Donga (586km™) which constitutes the supersite for hydrological modelling. The streamgage network (cf. list in Streamgage.Stations.xls): ---------------------------------------------------------- - Number of stations : 3 (other stations are also monitored, Cf. map). - period of measurements : 2001-2002. - type of stream gauges : . reader : one reading per day . OTT Thalimedes : variation of water level. - List of stations for 2001 and 2002: Station River Code CIEH Raingage LongitudeLatitude Elevationarea 2001 2001 2002 2002 2002 type Missing Data runoff Missing Data runoff last record —E —N meter km2 % M m3 % M m3 B‰t‰rou Ou‰m‰ 1114500105 OTT Thalimedes 2,26675 9,19919 272,69 586 16,4 1198 0 1008 31/12/2002 Cote 238 T‰rou 1114501603 reader 2,09231 9,08839 265 3133 4,7 331 4,3 554 20/12/2002 Donga Pont Donga 1114501690 OTT Thalimedes 1,94472 9,71056 349,05 10050 0 128 0 88 25/11/2002 The stream gauge data : -------------------- The original data are either instantaneous levels (OUEME and DONGA) or 1 reading per day (TEROU station). The data of DONGA and OUEME have been converted to 1 hour time step for the years 2001 and 2002 for the CEOP data base. The data covers the entire year although there are no runoff during a part of the dry season. The data are in ASCII format. Each line contains: - the day, - the hour (in UTC/GMT time, i.e. local time + 1 hour), - the average runoff per hour (Donga and Oueme) or per day (Terou) in m3/s. - Missing data are signaled by a value of -999.0. Each file name refers to one station and one year. (i.e. DONGA_01.1h means station of river Donga (DongaPont) for the year 2001 at 1 hour time step i.e. TEROU_01.1d means station of river Terou (Cote238) for the year 2001 at 1 day time step). The data consistency has been globaly checked with rainfall data. Reclamations on data : ---------------------- Any comment or request for data must be made to : AMMA hydrometeorological PI Institut de Rercherche pour le D‰veloppement (IRD) Laboratoire d'‰tude des Transferts en Hydrologie et Environnement (LTHE) BP 53 38041 Grenoble cedex 9 FRANCE Telephone : 33-476 82 50 36 Fax : 33 -476 82 52 86 Email : christian.depraetere@hmg.inpg.fr