Long term water budget in a grassland catchment in Ireland

This paper describes some of the results of a one year hydrometeorological field experiment of a grassland Catchment near Cork, Ireland (from November 1996 to November 1997). The objective of the experiment was to compare actual evapotranspiration from the annual water balance of a small Catchment w...

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Bibliographic Details
Published in:Physics and chemistry of the earth. Part B, Hydrology, oceans and atmosphere Hydrology, oceans and atmosphere, 1999, Vol.24 (1-2), p.23-29
Main Authors: Moehrlen, C., Kiely, G., Pahlow, M.
Format: Article
Language:English
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Summary:This paper describes some of the results of a one year hydrometeorological field experiment of a grassland Catchment near Cork, Ireland (from November 1996 to November 1997). The objective of the experiment was to compare actual evapotranspiration from the annual water balance of a small Catchment with Penman-Monteith reference evapotranspiration. In addition, Class A pan measurements are compared over a shorter period of 4 months with daily resolution. Actual evapotranspiration is 98% of Penman-Monteith reference evpotranspiration. In the investigated period (July to October 1997) Penman- Monteith reference evapotranspiration is 73% of Class A pan evaporation. The annual actual evapotranspiration from the water balance is 29.27 % of precipitation from the grassland. This suggests that for the humid Irish climate Penman-Monteith is a good estimate of actual evapotranspiration (for grasslands).
ISSN:1464-1909
DOI:10.1016/S1464-1909(98)00006-9