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An analytical model for estimating canopy transpiration and carbon assimilation fluxes based on canopy light-use efficiency
2000
Agricultural and Forest Meteorology
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Effective LUE estimates generated by the model respond to variations in atmospheric humidity, CO 2 concentration, the composition of solar irradiation (direct versus diffuse beam fractions), and soil moisture ...
Both qualities lend themselves well to regional-and global-scale modeling efforts. ...
Murphy (NASA); the FIFE Information System team, led by D.E. ...
doi:10.1016/s0168-1923(99)00170-7
fatcat:thqrsdk3yvdwpnqbjtyxwy2s6i
Evaporation Research: Review and Interpretation
2005
Journal of irrigation and drainage engineering
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Literature regarding evaporation from soil, wet plant surfaces, and sprinkler droplets was examined, normalized, and inter preted. ...
Much of the evaporation literature is difficult to compare and interpret; this paper offers comparisons and discussions of various findings by others as well as by the writers. ...
(Cupid with a droplet evapo ration component). ...
doi:10.1061/(asce)0733-9437(2005)131:1(37)
fatcat:s5yslvaovffmvedzeji4ph2wtm
A review of earth surface thermal radiation directionality observing and modeling: Historical development, current status and perspectives
2019
Remote Sensing of Environment
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They were initially aimed at mimicking the observed TIR radiance with consideration of canopy structure, component emissivities and temperatures, and Earth surface energy exchange processes. ...
temperatures. ...
It was coupled with the Cupid model to simulate the dynamic component temperatures automatically (Huang et al., 2011) and further extended to be TRGMEB model (Bian et al., 2017b) with combination of ...
doi:10.1016/j.rse.2019.111304
fatcat:i2k7gccoyjhqbjculfcm5u75ca
SOIL–PLANT–ATMOSPHERE CONTINUUM
[chapter]
2005
Encyclopedia of Soils in the Environment
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Heat transport is driven by temperature differences. ...
Cupid. ...
doi:10.1016/b0-12-348530-4/00416-1
fatcat:c4qtl73lqrgvrlicihwtk6bxau
Application of the Priestley–Taylor Approach in a Two-Source Surface Energy Balance Model
2010
Journal of Hydrometeorology
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In the TSM, however, the PT approach is applied only to the canopy component of the latent heat flux, which may behave more conservatively than the bulk (soil 1 canopy) system. ...
The Priestley-Taylor (PT) approximation for computing evapotranspiration was initially developed for conditions of a horizontally uniform saturated surface sufficiently extended to obviate any significant ...
The component (soil and vegetation) sensible heat fluxes (H S and H C ) are then computed along the gradients in temperature, regulated by transport resistances (see Fig. 1 ). ...
doi:10.1175/2009jhm1124.1
fatcat:szx4t4tabzfphc3l5jisfcjqy4
A review of approaches for evapotranspiration partitioning
2014
Agricultural and Forest Meteorology
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Future challenges include development of models simulating the components of ET separately and advancement of methods for continuous measurement of E, T and/or the ratio between the two. ...
We presuppose that, to test the accuracy of ET partitioning methods (measurements and/or modeling), all three components, i.e., E, T and ET, must be estimated independently, but recognize that sometimes ...
The ET components are determined as a function of sprinkler characteristics, application rate, wind speed, temperature, and droplet size distribution. ...
doi:10.1016/j.agrformet.2013.09.003
fatcat:tiw4s2humbgavhsqb6wiqxnqvu
Modeling and Inversion in Thermal Infrared Remote Sensing over Vegetated Land Surfaces
[chapter]
2008
Advances in Land Remote Sensing
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Retrieving sunlit and shaded components or canopy temperature profile requires inverting simulation models. ...
Forthcoming challenge is recovering more elaborated temperatures. Soil and vegetation components can replace aerodynamic temperature, which retrieval seems almost impossible. ...
Modeling Literature [141] • Brightness temperature Geometric-optics Caselles's [143] Land surface • Soil and vegetation temperatures Yu's [73] with sunlit and shaded components CUPID [147] Geometric-optics ...
doi:10.1007/978-1-4020-6450-0_10
fatcat:gd4qodeej5ajvafplhgwbxd5lq
Upscaling and Downscaling—A Regional View of the Soil–Plant–Atmosphere Continuum
2003
Agronomy Journal
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Conversely, by downscaling, we nificant. learn how to appropriately parameterize subgrid-scale phenomena Conversely, we need to also consider issues in downwithin large-scale modeling frameworks. ...
How The strength of interaction among soil, plants, and atmosphere does one assign appropriate values to bulk model padepends highly on scale. ...
Cupid models the leaf-level responses of spatial coverage. ...
doi:10.2134/agronj2003.1408
fatcat:6znxsgullzg5jnlegyvfuq2q7a
A Two-Source Time-Integrated Model for Estimating Surface Fluxes Using Thermal Infrared Remote Sensing
1997
Remote Sensing of Environment
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Air temperature can be strongly coupled to local biophysical surface conditions and, if the surface air and brightness temperature measurements" used by a model are not collocated, energy flux estimates ...
Both comparisons yielded uncertainties comparable to those achieved by models that do require air temperature as an input and to measurement errors typical of standard micrometeorological methods fi)r ...
These results are based on a combined soil-plant-atmosphere (Cupid) and PBL model. ...
doi:10.1016/s0034-4257(96)00215-5
fatcat:sikafaxk6fe2bcx654z2k6326i
Dew frequency, duration, amount, and distribution in corn and soybean during SMEX05
2009
Agricultural and Forest Meteorology
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Must this effect be taken into account in order to avoid corrupting remotely sensed observations of important ecosystem variables such as soil moisture? ...
The Atmosphere-Land Exchange (ALEX) model, a land surface process model that accounts for both dewfall and distillation, produced estimates of dew amount and duration that were in agreement with manual ...
Acknowledgements This research was supported by Iowa State University of Science and Technology, the Department of Agronomy at Iowa State University, the Center for Global and Regional Environmental Research ...
doi:10.1016/j.agrformet.2008.07.002
fatcat:7a4tlsjesbey7ckvlu3y5u65um
Estimating Evapotranspiration from an Improved Two-Source Energy Balance Model Using ASTER Satellite Imagery
2015
Water
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To solve this problem, the TSEB patch model proposed by Sanchez et al. [9] was tested by component temperatures from field observations; Anderson et al. [10] used the light-use-efficiency (LUE) model for ...
fractional vegetation cover, Both the layer and patch TSEB approaches require the input of the component temperatures (soil and canopy temperatures), which can be derived from the radiometric temperatures ...
Acknowledgments: This research was supported by the National Natural Sciences Foundation of China (41271424). ...
doi:10.3390/w7126653
fatcat:arxsfwu7bjfltjvtrpilrjyr4u
The effect of soil surface litter residue on energy and carbon fluxes in a deciduous forest
2012
Agricultural and Forest Meteorology
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During these periods, particularly during the spring, without the inclusion of the residue layer the model overpredicted LE, G, soil temperature and soil moisture, and underpredicted H. ...
The Atmosphere-Land Exchange Surface Energy (ALEX) balance model is an analytical formulation of the energy and mass transport within the soil and the vegetation canopy used for simulating energy, evapotranspiration ...
Acknowledgement This work was funded by the NOAA OAR/ARL Climate Research Program. ...
doi:10.1016/j.agrformet.2012.03.013
fatcat:w5gsijt6s5evxh2gi3i2apxoye
SCOPE 2.0: a model to simulate vegetated land surface fluxes and satellite signals
2021
Geoscientific Model Development
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The Soil Canopy Observation of Photosynthesis and Energy fluxes (SCOPE) model aims at linking satellite observations in the visible, infrared, and thermal domains with land surface processes in a physically ...
due to a fundamental optimization of the model. ...
The Soil Canopy Observation of Photosynthesis and Energy fluxes (SCOPE) model simulates the radiative transfer of incident light and thermal and fluorescence radiation emitted by soil and plants, component ...
doi:10.5194/gmd-14-4697-2021
fatcat:boeii7rjczbvtmrfvbl2bxhera
Remote sensing in hydrology
2002
Advances in Water Resources
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Published by ...
The ones which we will consider in this paper are land surface temperature from thermal infrared data, surface soil moisture from passive microwave data, snow cover using both visible and microwave data ...
[58] using a complex soil-vegetation-atmosphere-transfer (SVAT) model (Cupid [79] ) have shown the lack of a unique relationship between T R ðhÞ and the ''aerodynamic'' surface temperature, T 0 . ...
doi:10.1016/s0309-1708(02)00065-9
fatcat:7trxsuclcneqzp3vukhi3unvda
Remote Sensing Research in Hydrometeorology
2003
Photogrammetric Engineering and Remote Sensing
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For the hydrometeorological fluxes, including plant water stress, models estimating evapotranspiration have been developed using land surface temperature as a key boundary condition with recent schemes ...
These research efforts in estimating evapotranspiration with remotely sensed surface temperatures have been utilized by ARS researchers in the development of the Crop Water Stress Index and Water Deficit ...
., 1997) , Kustas et al. (2003) , using a complex soil-vegetation-atmosphere-transfer (SVAT) model (Cupid; Norman and Campbell, 1983) , have shown the lack of a unique relationship between T R (u) and ...
doi:10.14358/pers.69.6.631
fatcat:aib65ol7wzd65kx3dntvzxbq74
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