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פותח על ידי קלירמאש פתרונות בע"מ -
Examination of the bowen ratio energy balance technique for evapotranspiration estimates in screenhouses
Year:
2013
Source of publication :
Biosystems Engineering
Authors :
טנאי, יוסף
;
.
כהן, שבתאי
;
.
Volume :
114
Co-Authors:
Dicken, U., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Center, POB 6, Bet Dagan 50250, Israel
Cohen, S., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Center, POB 6, Bet Dagan 50250, Israel
Tanny, J., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Center, POB 6, Bet Dagan 50250, Israel
Facilitators :
From page:
397
To page:
405
(
Total pages:
9
)
Abstract:
For the first time, the applicability of the Bowen ratio energy balance technique to evapotranspiration estimates in screenhouses was investigated. Measurements were conducted at the centre of a large banana screenhouse in northern Israel. Data of eddy covariance flux measurements and vertical temperature and humidity gradients were used to estimate the ratio between the turbulent transport coefficients of heat and water vapour. Data from 8 days were used for calibration, and those from an additional 4 days for validation of the method. Calibration results showed that the ratio between the turbulent transport coefficients was close to unity during most daytime hours, indicating that the method is applicable in the screenhouse environment. The Bowen ratio was nearly constant during most daytime hours, with an average of 0.41 ± 0.07. During the validation period, very good agreement was obtained between the latent heat flux as estimated with the Bowen ratio method and that deduced from EC measurements. © 2012 IAgrE.
Note:
Related Files :
Bowen ratio
calibration
Estimation
evapotranspiration
Validation periods
Vertical temperature
Water vapour
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/j.biosystemseng.2012.11.001
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
28379
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:38
Scientific Publication
Examination of the bowen ratio energy balance technique for evapotranspiration estimates in screenhouses
114
Dicken, U., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Center, POB 6, Bet Dagan 50250, Israel
Cohen, S., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Center, POB 6, Bet Dagan 50250, Israel
Tanny, J., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Center, POB 6, Bet Dagan 50250, Israel
Examination of the bowen ratio energy balance technique for evapotranspiration estimates in screenhouses
For the first time, the applicability of the Bowen ratio energy balance technique to evapotranspiration estimates in screenhouses was investigated. Measurements were conducted at the centre of a large banana screenhouse in northern Israel. Data of eddy covariance flux measurements and vertical temperature and humidity gradients were used to estimate the ratio between the turbulent transport coefficients of heat and water vapour. Data from 8 days were used for calibration, and those from an additional 4 days for validation of the method. Calibration results showed that the ratio between the turbulent transport coefficients was close to unity during most daytime hours, indicating that the method is applicable in the screenhouse environment. The Bowen ratio was nearly constant during most daytime hours, with an average of 0.41 ± 0.07. During the validation period, very good agreement was obtained between the latent heat flux as estimated with the Bowen ratio method and that deduced from EC measurements. © 2012 IAgrE.
Scientific Publication
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