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Estimating net surface longwave radiation from net surface shortwave radiation for cloudy skies
International Journal of Remote Sensing, 2013This work addresses the estimation of net surface longwave radiation NSLR from net surface shortwave radiation NSSR by analysing the Surface Radiation Budget Network SURFRAD radiation data under cloudy conditions. A general model is developed to estimate NSLR from the NSSR for cloudy skies with a root mean square error RMSE of 23.16 W m−2 compared with
Zhou, X-M., Tang, B., Wu, H., Li, Z.
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AN IMPROVED NET-RADIATION INSTRUMENT
Journal of Meteorology, 1954Abstract An improved net-radiation instrument for measuring the net flux of radiant energy through a surface parallel to the earth's surface, which employs the principle of exposing a ventilated radiation-absorbing element to the radiation sources, is described.
V. E. Suomi +2 more
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ESTIMATION OF NET AND SOLAR RADIATION
Canadian Journal of Plant Science, 1971Relationships between net radiation (QN) and global solar radiation (QS) and between the ratios of QS and solar radiation at the top of the atmosphere (QS/QA) and duration of bright sunshine and daylength (n/N) were determined by regression analysis at Guelph, Ontario, Canada. The data used were recorded at the Guelph O.A.C.
I. S. SELIRIO, D. M. BROWN, K. M. KING
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The calculation of the net radiation flux
Archiv für Meteorologie, Geophysik und Bioklimatologie Serie B, 1980A comparison between two global solar radiation- and two net longwave radiation flux formulas applied to the calculation of the net radiation flux was made. The differences between the two global solar radiation formulas were fairly small but the ratio of the two net longwave radiation formulas varied from approximately 1.21 under cloudless conditions ...
R. Jong, C. F. Shaykewich, A. Reimer
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Canadian Journal of Forest Research, 1978
The results of field studies on the radiation climate at Montmorency, Quebec, are presented. These studies were conducted in the summers of 1975 and 1976, and two sites were used. The first site, used in both years, was forested with 50- to 60-year-old balsam fir (Abiesbalsamea L. Mill.). The second site, originally forested with balsam fir, was clear-
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The results of field studies on the radiation climate at Montmorency, Quebec, are presented. These studies were conducted in the summers of 1975 and 1976, and two sites were used. The first site, used in both years, was forested with 50- to 60-year-old balsam fir (Abiesbalsamea L. Mill.). The second site, originally forested with balsam fir, was clear-
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Estimating the net-radiation flux
Agricultural Meteorology, 1968A major influence controlling the water loss from irrigated crops is the net-radiation intensity Qn, but measurements of this are not normally available, and so attempts are often made to deduce it from other climatic data, such as the solar-radiation.
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Estimation of Surface Net Radiation from Solar Shortwave Radiation Measurements
IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008This study develops a method to estimate surface daytime net radiation (Rn) from solar shortwave radiation measurements with help of the conventional meteorological observations and vegetation indices from satellite. Data collected at twenty-two sites in the U.S.
Kaicun Wang, Shunlin Liang
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Transactions of the ASABE, 2010
We compared daily net radiation (Rn) estimates from 19 methods with the ASCE‐EWRI Rn estimates in two climates: Clay Center, Nebraska (sub‐humid) and Davis, California (semi‐arid) for the calendar year. The performances of all 20 methods, including the ASCE‐EWRI Rn method, were then evaluated against Rn data measured over a non‐stressed maize canopy ...
Irmak, Suat +2 more
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We compared daily net radiation (Rn) estimates from 19 methods with the ASCE‐EWRI Rn estimates in two climates: Clay Center, Nebraska (sub‐humid) and Davis, California (semi‐arid) for the calendar year. The performances of all 20 methods, including the ASCE‐EWRI Rn method, were then evaluated against Rn data measured over a non‐stressed maize canopy ...
Irmak, Suat +2 more
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Net radiation in a riparian mesquite community
Water Resources Research, 1969Net radiation patterns for a riparian mesquite community are similar to net radiation patterns obtained for a humid forest. The net radiation peak of the open area was 61% of the net radiation peak above the canopy. The net radiation within a mesquite canopy peaked 9% higher but had a lower daily total value than the radiation above the canopy.
J. M. Tromble, J. R. Simanton
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1981
Net radiation within a plant stand B(L) is the difference of all downward and upward fluxes of solar and long-wave radiation, i.e.
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Net radiation within a plant stand B(L) is the difference of all downward and upward fluxes of solar and long-wave radiation, i.e.
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