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| H00 - Systems processing several types of data | |
| No component presently available | |
| H05 - General water quality data | |
| No component presently available | |
| H09 - Sediment transport data | |
| H09.1.01 | Computation of fluvial sediment discharge | 
| H25 - General meteorological data for use in hydrology | |
| No component presently available | |
| H26 - Precipitation data, non-radar | |
| No component presently available | |
| H39 - Air humidity data | |
| No component presently available | |
| H55 - Soil moisture data | |
| No component presently available | |
| H70 - Surface water (level and flow) general | |
| No component presently available | |
| H71 - Water level data, river stage, lake or reservoir levels | |
| No component presently available | |
| H73 - Discharge data, all ranges | |
| No component presently available | |
| H76 - Derivation of rating curves, converting stage to flow by means of rating curves | |
| H76.2.05 | Discharge ratings at gauging stations | 
| H76.2.06 | Computation of continuous records of streamflow | 
| H79 - Water velocity data, computing discharge from point velocity measurements | |
| No component presently available | |
| H83 - Processing of historical flood information | |
| H83.1.01 | Collection and processing of historical flood data | 
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