BHDC - Information on data |
Hydrological data sampling strategy |
| Runoff data The hydrological data base shall generally be based on daily (24h) data except for some long records where these data are not easily available. Data will preferably be collected from 1970 and onwards to cover the entire BALTEX research period. In cases early data not are available the period will start in 1980. Data from a basic network of hydrological runoff stations covering the entire Baltic basin shall be collected. This network consists of some 100 stations, selected to give a good areal coverage and to include the mouths of all major rivers. Four river basins will be subjects to more complete data sampling. These special study basins are Odra, Daugava, Neva and Torne. The minimum average data coverage in these basins will be about one station per 4000 kmē. A special data base on the longest runoff records in the Baltic basin will be created for climatological studies. A data base of meta data for all stations will be created and maintained by the BHDC. |
| Other hydrological data Other hydrological data will be collected depending on their availability. Data on the water equivalent of snow will be collected by the BHDC as available, mostly from special studies. Data on soil moisture will be collected by the BHDC as available from special studies. Data on lakes consisting of levels, ice observations and water temperatures will be collected by BHDC as available. |
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| Revised 2006-06-29 |