1. Hydrological observation 2. Flood flow measurement 3. Flood runoff4. Rainfall and water level gauging system employing telemetry 5. Radar rain-gauge system in Japan 6. Computerized river information system [video cd] 

 - Japan  [date of publication not identified] 
 - 1 video cd 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology--Japan.<br/>Flood--Japan.<br/>Rivers--Japan.