Narrow-band to broad-band conversion for Meteosat-visiible channel and broad-band albedo using both AVHRR-1 and -2 channels

Valiente, José; Núñez, M.; López-Baeza, Ernesto; Moreno, José

doi:10.1080/01431169508954468

Cited by 78 publications

(37 citation statements)

References 18 publications

(15 reference statements)

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“…The regional net radiation flux is expressed as R n ðx; yÞ ¼ ð1 À r 0 ðx; yÞÞ Á K # ðx; yÞ þ L # ðx; yÞ À " 0 ðx; yÞ T sfc 4 ðx; yÞ; ð11Þ where is Stefan Boltzmann constant and surface reflectance r 0 (x, y) is derived from the channel-1 and -2 of NOAA-14=AVHRR data with the models of Paltridge and Mitchell (1990) and Valiente et al (1995). Surface reflectance of each pixel r 0 (x, y) should be considered as an effective reflectance, it is not only a function of the surface coverage but also of the solar elevation angle ).…”

Section: Net Radiationmentioning

confidence: 99%

Diurnal and inter-monthly variation of land surface heat fluxes over the central Tibetan Plateau area

Fan

Ishikawa

et al. 2004

Theor. Appl. Climatol.

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The energy and water cycle over the Tibetan Plateau play an important role in the Asian monsoon system, which in turn is a major component of both the energy and water cycles of the global climate system. Using field observational data observed from the GAME=Tibet (GEWEX (Global Energy and Water cycle Experiment) Asian Monsoon Experiment on the Tibetan Plateau) and the CAMP=Tibet (CEOP (Coordinated Enhanced Observing Period) Asia-Australia Monsoon Project (CAMP) on the Tibetan Plateau), some results on the local surface energy partitioning (diurnal variation, inter-monthly variation and vertical variation etc.) are presented in this study.The study on the regional surface energy partitioning is of paramount importance over heterogeneous landscape of the Tibetan Plateau and it is also one of the main scientific objectives of the GAME=Tibet and the CAMP=Tibet. Therefore, the regional distributions and their inter-monthly variations of surface heat fluxes (net radiation flux, soil heat flux, sensible heat flux and latent heat flux) are also derived by combining NOAA-14=AVHRR data with field observations. The derived results were validated by using the ''ground truth'', and it shows that the derived regional distributions and their inter-monthly variations of land surface heat fluxes are reasonable by using the method proposed in this study.Further improvement of the method and its applying field were also discussed.

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Section: Net Radiationmentioning

confidence: 99%

Diurnal and inter-monthly variation of land surface heat fluxes over the central Tibetan Plateau area

Fan

Ishikawa

et al. 2004

Theor. Appl. Climatol.

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“…where surface reflectance r 0 ðx; yÞ is derived from the channel-1 and -2 of NOAA-14/AVHRR data with the models of Paltridge and Mithchell (1990) and Valiente et al (1995). The surface emissivity e 0 ðx; yÞ is a function of vegetation coverage, and the vegetation coverage P v is also derived from channel 1 and 2 data with the algorithm by Valor and Caselles (1996) (1) is retrieved from the brightness temperature of channels four and five of NOAA-14/ AVHRR according to Li (1990 and1995).…”

Section: A Net Radiationmentioning

confidence: 99%

Regionalization of Surface Fluxes over Heterogeneous Landscape of the Tibetan Plateau by Using Satellite Remote Sensing Data

Ishikawa

Tsukamoto

et al. 2003

Journal of the Meteorological Society of Japan

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In this study, a parameterization method based on NOAA-14/AVHRR data and field observations is described and tested for deriving the regional land surface variables, vegetation variables and land surface heat fluxes over a heterogeneous landscape. As a case study, the method was applied to the Tibetan Plateau area. The regional distribution maps of surface reflectance, MSAVI, vegetation coverage, surface temperature, net radiation, soil heat flux, sensible heat flux and latent heat flux were determined over the Tibetan Plateau area. The derived results were validated by using the ''ground truth''. The results show that the more reasonable regional distributions and their seasonal variations of land surface variables (surface reflectance, surface temperature), vegetation variables (MSAVI and vegetation coverage), net radiation, soil heat flux and sensible heat flux can be obtained by using the method proposed in this study. However, the approach of deriving regional latent heat flux, and their seasonal variation as the residual of the energy budget, may not be a good method due to the unbalance of energy and the strong advection over the study area. Further improvement of the method was also discussed.

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“…Surface albedo r s is closely related to the planetary albedo r p , and their mutual relation can be expressed as (Valiente et al 1995) …”

Section: Surface Net Radiation Flux R Nmentioning

confidence: 99%

Comparative Analysis of Satellite Remotely-Sensed Surface Energy Flux and Ground-Based Observation in the Sichuan Basin

Wang

et al. 2012

Journal of the Meteorological Society of Japan

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Integrating the clear-sky NOAA/AVHRR satellite data with station meteorological observations, we conduct a remote sensing estimation of surface energy fluxes of the Sichuan Basin based on surface energy balance. The correlation between the estimation of satellite pixel and the ground-based observed value of Wenjiang Atmospheric Boundary Layer Observation Station is analyzed to verify the satellite remotely-sensed surface energy flux. Result indicates that the distributions of satellite remotely-sensed surface energy fluxes are consistent with those of the underlying surface. There exist remarkable positive correlations among the satellite-estimated net radiation flux, soil heat flux, sensible heat flux, and the ground-based observed values of key components. All correlation coe‰cients significantly exceed 0.9. Hence, the remotely-sensed estimations of net radiation flux, soil heat flux, and sensible heat flux are reliable to a certain extent. Since the surface energy balance at Wenjiang test site is usually unclosed, the correlation coe‰cient between the satellite pixel latent heat flux estimated by surface energy balance method and the value measured by eddy covariance method of the key components is only 0.717. If the unclosed value of surface energy balance is taken into consideration, the correlation coe‰-cient increases to 0.945, meaning that the deviation between the two decreases obviously. It is thus unadvisable to use the residual of surface energy balance equation to estimate the latent heat flux in the Sichuan Basin, because the unclosed energy can cause large errors. Closure of surface energy is required when the residual method is applied.

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Narrow-band to broad-band conversion for Meteosat-visiible channel and broad-band albedo using both AVHRR-1 and -2 channels

Cited by 78 publications

References 18 publications

Diurnal and inter-monthly variation of land surface heat fluxes over the central Tibetan Plateau area

Diurnal and inter-monthly variation of land surface heat fluxes over the central Tibetan Plateau area

Regionalization of Surface Fluxes over Heterogeneous Landscape of the Tibetan Plateau by Using Satellite Remote Sensing Data

Comparative Analysis of Satellite Remotely-Sensed Surface Energy Flux and Ground-Based Observation in the Sichuan Basin

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