Results 231 to 240 of about 9,068 (257)

Foliage temperature and latent heat flux of irrigated wheat

Agricultural and Forest Meteorology, 1991
Abstract A series of 42 hourly measurements from a weighing lysimeter of foliage temperature provided a basis from which to evaluate the residual energy balance method for determining latent heat flux which incorporated foliage temperature measurements by an infrared thermometer.
F.X. Dunin, H.D. Barrs, W.S. Meyer, A.C.F. Trevitt   +3 more
openaire   +1 more source

Remote sensing of surface sensible and latent heat fluxes

Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium, 2002
The potential for radar/lidar remote sensing of the surface sensible and latent heat fluxes is discussed, and some preliminary results are given. The method utilizes a parameterization scheme involving observables measured by radar/lidar in the convective boundary layer. >
R.J. Doviak, Z. Sorbjan
openaire   +1 more source

Sensible and Latent Heat Flux Measurements over the Ocean

Journal of Physical Oceanography, 1982
Abstract This papar presents an extensive act of sensible heat (Reynolds flux and dissipation methods) and latent heat (dissipation method) flux measurements from a stable deep water tower and from ships on the deep sea. Operational difficulties associated with ship spray and flow distortion and with sensor calibration, response and contamination are ...
W. G. Large, S. Pond
openaire   +1 more source

Flux-Variance Method for Latent Heat and Carbon Dioxide Fluxes in Unstable Conditions

Boundary-Layer Meteorology, 2009
Applied previously to momentum and heat fluxes, the present study extends the flux-variance method to latent heat and CO2 fluxes in unstable conditions. Scalar similarity is also examined among temperature (θ), water vapour (q), and CO2 (c). Temperature is adopted as the reference scalar, leading to two feasible strategies to estimate latent heat and ...
Xiaofeng Guo, Hongsheng Zhang, Xuhui Cai, Ling Kang, Tong Zhu, Monique Y. Leclerc   +5 more
openaire   +1 more source

Turbulent Fluxes in the Hurricane Boundary Layer. Part II: Latent Heat Flux

Journal of the Atmospheric Sciences, 2007
Abstract As part of the recent ONR-sponsored Coupled Boundary Layer Air–Sea Transfer (CBLAST) Departmental Research Initiative, an aircraft was instrumented to carry out direct turbulent flux measurements in the high wind boundary layer of a hurricane.
Jun A. Zhang, William M. Drennan, Jeffrey R. French, Cyril McCormick, Peter G. Black   +4 more
openaire   +1 more source

Latent heat and sensible heat flux simulation in maize using artificial neural networks

Computers and Electronics in Agriculture, 2018
Abstract Latent Heat (LE) and Sensible Heat (H) flux are two major components of the energy balance at the earth’s surface, which play important roles in the water cycle and global warming. There are various methods for their estimation or measurement. Eddy covariance is a direct and accurate technique for their measurement.
Babak Safa, Timothy J. Arkebauer, Qiuming Zhu, Andy Suyker, Suat Irmak   +4 more
openaire   +1 more source

A Comparison of Sensible and Latent Heat Flux Estimates for the North Atlantic Ocean

Journal of Physical Oceanography, 1995
Abstract Previously published estimates of the surface turbulent fluxes over the North Atlantic Ocean have been compared by applying the calculation methods used by each author to a common dataset of ship observations. The major differences between the various flux estimations were due to whether or not the data were corrected for observation height ...
Kent, E.C., Taylor, P.K.
openaire   +2 more sources

Sensitivity of C2 sub n to Random Variations of Windspeed, Sensible Heat Flux, and Latent Heat Flux

1992
Abstract : The optical turbulence structure parameter, (C sub n)sq, is a primary parameter in expressions used to characterize electromagnetic energy and image propagation through the atmosphere. Examples of these expressions include the receiver coherence diameter and the atmospheric modulation transfer function.
Arnold Tunick, Henry Rachele
openaire   +1 more source

Radiation budget, soil heat flux and latent heat flux at the forest floor in warm, temperate mixed forest

Hydrological Processes, 1998
Seasonal changes in the radiation budget and soil heat flux of a forest floor were measured in a mixed forest located in Kyoto, Japan. The basal area at breast height in the survey forest was about 15.82 m 2 ha -1 , for evergreen trees, and 12.46 m 2 ha - 1 , for deciduous trees.
Koji Tamai, Toshio Abe, Makoto Araki, Hiroki Ito   +3 more
openaire   +1 more source

The Fluxes of Specific Enthalpy, Sensible Heat and Latent Heat near the Earth's Surface

Journal of the Atmospheric Sciences, 1982
Abstract Corrections to the sensible heat flux due to fluctuations in the specific humidity recently proposed by Brook (1978) have been shown to be incorrect by Frank and Emmitt (1981). However, it is easy to misinterpret Frank and Emmitt’s paper. Here an effort is made to clarify the issue and to sketch what its importance is to the energy balance of ...
openaire   +1 more source