Assessing evapotranspiration and crop coefficients of potato in a semi-arid climate using Eddy Covariance techniques

2021 ◽  
Vol 255 ◽  
pp. 107029
Author(s):  
A.T.B. Machakaire ◽  
J.M. Steyn ◽  
A.C. Franke
Keyword(s):  
Eddy Covariance ◽  
Arid Climate ◽  
Crop Coefficients ◽  
Semi Arid

scholarly journals On the factors influencing surface-layer energy balance closure and their seasonal variability over semi-arid loess plateau of Northwest China

2011 ◽  
Vol 8 (1) ◽  
pp. 555-584 ◽  
Author(s):  
X. Xiao ◽  
H. C. Zuo ◽  
Q. D. Yang ◽  
S. J. Wang ◽  
L. J. Wang ◽  
...  
Keyword(s):  
Climate Change ◽  
Energy Balance ◽  
Eddy Covariance ◽  
Turbulent Mixing ◽  
Seasonal Variability ◽  
Surface Soil ◽  
Low Frequency ◽  
Arid Climate ◽  
Energy Balance Closure ◽  
Semi Arid

Abstract. In the context of September 2006–August 2010 eddy covariance data of the Semi-Arid Climate Change and Environment Observatory, Lanzhou University (SACOL) as a platform of the Key Laboratory of Semi-Arid Climate Change, Ministry of Education, an intensive study is performed of the SACOL data quality and energy balance closure (EBC) characteristics on a seasonal basis, the EBC impacts of the flux contribution from the target source zone, the low-frequency part of the turbulence spectra, turbulent mixing intensity and diverse schemes for surface soil heat fluxes. Evidence suggests that (1) through the steady state test (SST) and integral turbulence characteristics (ITC) tests as well as analysis of flux contribution from target area to the EBC, it is found that most of the eddy covariance data are within a domain of effective quality. The valid data account for 77.5, 75.4, 68.3 and 61.6% of seasonal total for spring, summer, autumn and winter, respectively; (2) the EBC shows its appreciable seasonal variability, with the energy residual making up 19.0, 14.8, 11.6 and 7.7% of net radiation in winter, summer, autumn and spring, respectively; (3) (i) Flux contribution from the target zone has greater EBC impact and as the flux contribution in percentage increases, EBC is correspondingly improved. Even the percentage reaches 100%, the energy balance fails to be closed entirely. (ii) The Ogive function analysis shows that the EBC suffers the effect of relatively small (maximum) low-frequency turbulent flux in spring and summer (winter). (iii) Turbulence intensity exerts noticeable impact on the EBC; when turbulent mixing arrives at certain intensity, the EBC is in an optimal state and stabilized. (iv) Different schemes of surface soil thermal flux have significant effect on the EBC.

Estimating evapotranspiration and determining crop coefficients of irrigated sweet potato (Ipomoea batatas) grown in a semi-arid climate

2020 ◽  
Vol 233 ◽  
pp. 106099 ◽  
Author(s):  
N.E. Mulovhedzi ◽  
N.A. Araya ◽  
M.G. Mengistu ◽  
M.K. Fessehazion ◽  
C.P. du Plooy ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Arid Climate ◽  
Crop Coefficients ◽  
Semi Arid

Evapotranspiration and crop coefficients of irrigated garlic (Allium sativum L.) in a semi-arid climate

2004 ◽  
Vol 64 (3) ◽  
pp. 233-249 ◽  
Author(s):  
F.J Villalobos ◽  
L Testi ◽  
R Rizzalli ◽  
F Orgaz
Keyword(s):  
Allium Sativum ◽  
Arid Climate ◽  
Crop Coefficients ◽  
Semi Arid

MONITORING A CAVE ENVIRONMENT IN THE SIERRA NEVADA — IMPLICATIONS FOR INTERPRETING STALAGMITE RECORDS FROM A SEMI-ARID CLIMATE

2019 ◽  
Author(s):  
Kimberly Bowman ◽  
◽  
Eleana Brumage ◽  
Elizabeth Diaz ◽  
Daphne Kuta ◽  
...  
Keyword(s):  
Sierra Nevada ◽  
Arid Climate ◽  
Cave Environment ◽  
Semi Arid

Modeling and experimental investigation of dust effect on glass cover PV module with fixed and tracking system under semi-arid climate

2021 ◽  
Vol 230 ◽  
pp. 111219
Author(s):  
Alae Azouzoute ◽  
Charaf Hajjaj ◽  
Houssain Zitouni ◽  
Massaab El Ydrissi ◽  
Oumaima Mertah ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Tracking System ◽  
Arid Climate ◽  
Glass Cover ◽  
Pv Module ◽  
Dust Effect ◽  
Semi Arid

scholarly journals Data of a PV plant implemented in hot semi-arid climate

Data in Brief ◽  
2021 ◽  
Vol 34 ◽  
pp. 106756
Author(s):  
Nour-eddine Id Omar ◽  
Lahcen Boukhattem ◽  
Fahd Oudrhiri Hassani ◽  
Amin Bennouna ◽  
Aziz Oukennou
Keyword(s):  
Arid Climate ◽  
Semi Arid
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