2003
DOI: 10.1029/2002wr001680
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Mapping evapotranspiration based on remote sensing: An application to Canada's landmass

Abstract: The evapotranspiration (ET) from all Canadian landmass in 1996 is estimated at daily steps and 1 km resolution using a process model named boreal ecosystem productivity simulator (BEPS). The model is driven by remotely sensed leaf area index and land cover maps as well as soil water holding capacity and daily meteorological data. All the major ET components are considered: transpiration from vegetation, evaporation of canopy‐intercepted rainfall, evaporation from soil, sublimation of snow in winter and in perm… Show more

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Cited by 133 publications
(121 citation statements)
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“…Berg et al (2005) pointed out that a bias on many of the reanalysis fields limits their use for hydrological modeling. Liu, Chen, and Cihlar (2003) bilinearly interpolated NCEP reanalysis data of around 0.98 into 1km to calculate daily ET at 1km resolution over the entire Canadian landmass in 1996 using the boreal ecosystem productivity simulator (BEPS). They found the daily total radiation in the NCEP data-set was 20Á40% higher than the weather station measurements and had to correct this overestimation with a reduction coefficient for each month, determined by data from all 96 Canadian stations.…”
Section: Incident Shortwave Solar Radiation Productmentioning
confidence: 99%
“…Berg et al (2005) pointed out that a bias on many of the reanalysis fields limits their use for hydrological modeling. Liu, Chen, and Cihlar (2003) bilinearly interpolated NCEP reanalysis data of around 0.98 into 1km to calculate daily ET at 1km resolution over the entire Canadian landmass in 1996 using the boreal ecosystem productivity simulator (BEPS). They found the daily total radiation in the NCEP data-set was 20Á40% higher than the weather station measurements and had to correct this overestimation with a reduction coefficient for each month, determined by data from all 96 Canadian stations.…”
Section: Incident Shortwave Solar Radiation Productmentioning
confidence: 99%
“…However, process-based models, like any other models, may suffer from inadequate model calibrations and validations. Eddy correlation tower flux measurements have been a major data source for model calibration and validation in recent studies (e.g., Liu et al, 2003;Cleugh et al, 2007;Zhang et al, 2010;Mu et al, 2011;Vinukollu et al, 2011). Similarly, EALCO has been calibrated and validated throughout using flux measurements particularly data from Fluxnet Canada Research Network (FCRN) (see references cited in Sect.…”
Section: Discussionmentioning
confidence: 99%
“…The northward-protruding patterns of high ET in the rain shadow of the cordillera are also evident in these products. The ET reported in Liu et al (2003) for Canada's landmass was 228 mm yr −1 (Fig. 15).…”
Section: Comparison With Other Studiesmentioning
confidence: 99%
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