en utf8 Global Runoff Data Centre (GRDC) in the Federal Institute of Hydrology (BfG) resourceProvider Thomas Maurer Head +49 261 1306 5224 +49 261 1306 5280

Am Mainzer Tor 1 Koblenz 56068 Germany grdc@bafg.de

http://grdc.bafg.de 2004-04-29 WMO19115_metadata_v0_1 0.1 Global set of discharge station locations given by latitude longitude pairs Global Runoff Data Base GRDB Global database of time series from 6700 discharge stations (5000 featuring daily data, 6700 featuring monthly data) Global Runoff Data Centre (GRDC) in the Federal Institute of Hydrology (BfG) resourceProvider Thomas Maurer Head +49 261 1306 5224 +49 261 1306 5280

Am Mainzer Tor 1 Koblenz 56068 Germany grdc@bafg.de

http://grdc.bafg.de irregular Information will be disseminated 1 week past data receipt A user declaration has to be signed. Restrictions as determined by the GRDC policy guidelines for the dissemination of data and costing of services. In brief: (1) Free and unrestricted (but identified) access to all hydrological data and products (2) Data are free of charge (only a fee for services and reproduction may be charged) (3) No commercial use of the data (4) Ownership of the data and responsibility for errors lie with the data providers (5) No redistribution of the data by the user (6) No distribution of the entire database (or of substantial parts) intellectualPropertyRights license Only by formal data request to GRDC As signed in the User Declaration irregularPoints Data held in Oracle database, export in ASCII files utf8 climatologyMeteorologyAtmosphere landHydrology climatology River discharge, runoff, streamflow, global coverage, daily and monthly time series 1806-01-01 continuing referenceDate Globally irregular distributed points -180 180 -90 90 Validity Time Range 1806-01-01 continuing daily monthly Corresponding to the altitude of the individual data points 1 4000 m.a.s.l. GRDC Export Format Version 2 2 Data itself not online, however some products (statistics, integrations) GTN-H, GTN-R cdRom Coordinates are of varying accuracy, typically 1 km, depending on data provider, in general NHS of WMO member states Data is distributed as received from data provider (in general NHS of WMO member states). Only crude plausibility checks are performed by GRDC GRDC data providers are in general the NHS of WMO member states