| Titre : |
The estimation of potential evapotranspiration using monograms to Penman's revised formula |
| Type de document : |
texte imprimé |
| Auteurs : |
Powell, F. A. |
| Mention d'édition : |
Commonwealth of Australia Bureau of Meteorology Departement of the Interrior |
| Editeur : |
Commonwealth of Australia Bureau of Meteorology Departement of the Interrior |
| Année de publication : |
1970 |
| ISBN/ISSN/EAN : |
CI-05026 |
| Note générale : |
The use of modern watering techniques such as trickle irrigation enable the soil to be kept at field capacty. Under such conditions estimates of potential evapotranspiration should have a more pratical application. A nomogramm has been devised to provide a solution to the revised penman (1961) equation part of this nomogram can be employed to facilitate the preferential use of net, or global radiation also to include the ground heat flux term if this information is available. A wind function, for various values of the roughness parameter to, as devised by Businger (1956) has been incorporated in the aerodynamic component to the nomogramm. A facility is provided to allow for independent day-time and night-time variation of temperature, vapour pressure deficit, wind speed, atmospheric stability and roughness astimates. |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Evaporation Météorologie Climatologie Irrigation Hydrologie Hydraulique agricole Formule de Penman |
| Index. décimale : |
631.58 Méthodes de culture : jachère, assolement irrigation |
| Résumé : |
The use of modern watering techniques such as trickle irrigation enable the soil to be kept at field capacty. Under such conditions estimates of potential evapotranspiration should have a more pratical application. A nomogramm has been devised to provide a solution to the revised penman (1961) equation part of this nomogram can be employed to facilitate the preferential use of net, or global radiation also to include the ground heat flux term if this information is available. A wind function, for various values of the roughness parameter to, as devised by Businger (1956) has been incorporated in the aerodynamic component to the nomogramm. A facility is provided to allow for independent day-time and night-time variation of temperature, vapour pressure deficit, wind speed, atmospheric stability and roughness astimates. |
| Note de contenu : |
The use of modern watering techniques such as trickle irrigation enable the soil to be kept at field capacty. Under such conditions estimates of potential evapotranspiration should have a more pratical application. A nomogramm has been devised to provide a solution to the revised penman (1961) equation part of this nomogram can be employed to facilitate the preferential use of net, or global radiation also to include the ground heat flux term if this information is available. A wind function, for various values of the roughness parameter to, as devised by Businger (1956) has been incorporated in the aerodynamic component to the nomogramm. A facility is provided to allow for independent day-time and night-time variation of temperature, vapour pressure deficit, wind speed, atmospheric stability and roughness astimates. |
The estimation of potential evapotranspiration using monograms to Penman's revised formula [texte imprimé] / Powell, F. A. . - Commonwealth of Australia Bureau of Meteorology Departement of the Interrior . - Commonwealth of Australia Bureau of Meteorology Departement of the Interrior, 1970. ISSN : CI-05026 The use of modern watering techniques such as trickle irrigation enable the soil to be kept at field capacty. Under such conditions estimates of potential evapotranspiration should have a more pratical application. A nomogramm has been devised to provide a solution to the revised penman (1961) equation part of this nomogram can be employed to facilitate the preferential use of net, or global radiation also to include the ground heat flux term if this information is available. A wind function, for various values of the roughness parameter to, as devised by Businger (1956) has been incorporated in the aerodynamic component to the nomogramm. A facility is provided to allow for independent day-time and night-time variation of temperature, vapour pressure deficit, wind speed, atmospheric stability and roughness astimates. Langues : Anglais ( eng)
| Mots-clés : |
Evaporation Météorologie Climatologie Irrigation Hydrologie Hydraulique agricole Formule de Penman |
| Index. décimale : |
631.58 Méthodes de culture : jachère, assolement irrigation |
| Résumé : |
The use of modern watering techniques such as trickle irrigation enable the soil to be kept at field capacty. Under such conditions estimates of potential evapotranspiration should have a more pratical application. A nomogramm has been devised to provide a solution to the revised penman (1961) equation part of this nomogram can be employed to facilitate the preferential use of net, or global radiation also to include the ground heat flux term if this information is available. A wind function, for various values of the roughness parameter to, as devised by Businger (1956) has been incorporated in the aerodynamic component to the nomogramm. A facility is provided to allow for independent day-time and night-time variation of temperature, vapour pressure deficit, wind speed, atmospheric stability and roughness astimates. |
| Note de contenu : |
The use of modern watering techniques such as trickle irrigation enable the soil to be kept at field capacty. Under such conditions estimates of potential evapotranspiration should have a more pratical application. A nomogramm has been devised to provide a solution to the revised penman (1961) equation part of this nomogram can be employed to facilitate the preferential use of net, or global radiation also to include the ground heat flux term if this information is available. A wind function, for various values of the roughness parameter to, as devised by Businger (1956) has been incorporated in the aerodynamic component to the nomogramm. A facility is provided to allow for independent day-time and night-time variation of temperature, vapour pressure deficit, wind speed, atmospheric stability and roughness astimates. |
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