Technical Bulletin, 107. A registration unit for drain outflow, groundwater depth and precipitation / Weerd, B. (van der)

Public ISBD Titre de série : Technical Bulletin, 107 Titre : A registration unit for drain outflow, groundwater depth and precipitation Type de document : texte imprimé Auteurs : Weerd, B. (van der) Mention d'édition : Institute for Land and Water Management Research Editeur : Institute for Land and water Management Research Année de publication : 1977 ISBN/ISSN/EAN : CI-09394 Note générale : A description is given of an operational field registration unit for open and submerged drain outflow, groundwater depth and rainfall. The drain outflow meter has a measuring range from 20 to 400 cm3/s with a mean error in recorded sediment free outflow of 15 per cent at flow rates below 60cm3/s and 1.5 per cent at higher flow rates. Its weight is 6-8 kg, depending on drain outlet it is adopted to, has a length of 90cm and a height of 50cm. The groundwater level meter has a measuring range of 1.25cm but it can be adopted to deeper levels. Its accuracy is 0.5cm were a float of 4.5cm in a 5cm diameter piezometer tube is used. Langues : Anglais (eng) Mots-clés : Eau souterraine  PRECIPITATIONS  Canalisation  Débit fluvial  Hydrologie  Piézométrie Index. décimale : 551.57 Hydrométéorologie : brouillard, nuages, précipitations Résumé : A description is given of an operational field registration unit for open and submerged drain outflow, groundwater depth and rainfall. The drain outflow meter has a measuring range from 20 to 400 cm3/s with a mean error in recorded sediment free outflow of 15 per cent at flow rates below 60cm3/s and 1.5 per cent at higher flow rates. Its weight is 6-8 kg, depending on drain outlet it is adopted to, has a length of 90cm and a height of 50cm. The groundwater level meter has a measuring range of 1.25cm but it can be adopted to deeper levels. Its accuracy is 0.5cm were a float of 4.5cm in a 5cm diameter piezometer tube is used. Note de contenu : A description is given of an operational field registration unit for open and submerged drain outflow, groundwater depth and rainfall. The drain outflow meter has a measuring range from 20 to 400 cm3/s with a mean error in recorded sediment free outflow of 15 per cent at flow rates below 60cm3/s and 1.5 per cent at higher flow rates. Its weight is 6-8 kg, depending on drain outlet it is adopted to, has a length of 90cm and a height of 50cm. The groundwater level meter has a measuring range of 1.25cm but it can be adopted to deeper levels. Its accuracy is 0.5cm were a float of 4.5cm in a 5cm diameter piezometer tube is used. Technical Bulletin, 107. A registration unit for drain outflow, groundwater depth and precipitation [texte imprimé] / Weerd, B. (van der)  . -  Institute for Land and Water Management Research . - Institute for Land and water Management Research, 1977. ISSN : CI-09394 A description is given of an operational field registration unit for open and submerged drain outflow, groundwater depth and rainfall. The drain outflow meter has a measuring range from 20 to 400 cm3/s with a mean error in recorded sediment free outflow of 15 per cent at flow rates below 60cm3/s and 1.5 per cent at higher flow rates. Its weight is 6-8 kg, depending on drain outlet it is adopted to, has a length of 90cm and a height of 50cm. The groundwater level meter has a measuring range of 1.25cm but it can be adopted to deeper levels. Its accuracy is 0.5cm were a float of 4.5cm in a 5cm diameter piezometer tube is used. Langues : Anglais (eng) Mots-clés : Eau souterraine  PRECIPITATIONS  Canalisation  Débit fluvial  Hydrologie  Piézométrie Index. décimale : 551.57 Hydrométéorologie : brouillard, nuages, précipitations Résumé : A description is given of an operational field registration unit for open and submerged drain outflow, groundwater depth and rainfall. The drain outflow meter has a measuring range from 20 to 400 cm3/s with a mean error in recorded sediment free outflow of 15 per cent at flow rates below 60cm3/s and 1.5 per cent at higher flow rates. Its weight is 6-8 kg, depending on drain outlet it is adopted to, has a length of 90cm and a height of 50cm. The groundwater level meter has a measuring range of 1.25cm but it can be adopted to deeper levels. Its accuracy is 0.5cm were a float of 4.5cm in a 5cm diameter piezometer tube is used. Note de contenu : A description is given of an operational field registration unit for open and submerged drain outflow, groundwater depth and rainfall. The drain outflow meter has a measuring range from 20 to 400 cm3/s with a mean error in recorded sediment free outflow of 15 per cent at flow rates below 60cm3/s and 1.5 per cent at higher flow rates. Its weight is 6-8 kg, depending on drain outlet it is adopted to, has a length of 90cm and a height of 50cm. The groundwater level meter has a measuring range of 1.25cm but it can be adopted to deeper levels. Its accuracy is 0.5cm were a float of 4.5cm in a 5cm diameter piezometer tube is used.

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