Journal ArticleDOI
Improvements to a MODIS global terrestrial evapotranspiration algorithm
TLDR
In this article, an improved version of the global evapotranspiration (ET) algorithm based on MODIS and global meteorology data has been proposed, which simplifies the calculation of vegetation cover fraction, calculating ET as the sum of daytime and nighttime components, adding soil heat flux calculation, improving estimates of stomatal conductance, aerodynamic resistance and boundary layer resistance, separating dry canopy surface from the wet and dividing soil surface into saturated wet surface and moist surface.About:
This article is published in Remote Sensing of Environment.The article was published on 2011-08-15. It has received 2052 citations till now. The article focuses on the topics: Evapotranspiration & Meteorological reanalysis.read more
Citations
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Journal ArticleDOI
Daily gridded meteorological variables in Brazil (1980–2013)
TL;DR: In this article, the authors used a cross-validation approach that compares point observed data to point interpolated estimates to select the best interpolation scheme for each climate variable, including maximum and minimum temperature, solar radiation, relative humidity, and wind speed.
Journal ArticleDOI
A Remotely Sensed Global Terrestrial Drought Severity Index
TL;DR: In this article, the authors developed a method to generate a near-real-time remotely sensed drought severity index (DSI) to monitor and detect drought globally at 1-km spatial resolution and regular 8-day, monthly, and annual frequencies.
Journal ArticleDOI
A review of remote sensing based actual evapotranspiration estimation
TL;DR: In this article, a review summarizes the basic theories underpinning current remote sensing based evapotranspiration estimation methods and compares their advantages and limitations, and identifies several key directions for further study, including identification of uncertainty sources in remote sensing evapOTranspiration models, merging of different remote sensing methods, application of data assimilation and fusion techniques, and utilization of multi-source remote sensing data and latest sensor technologies.
Journal ArticleDOI
Sensitivity of simulated global-scale freshwater fluxes and storages to input data, hydrological model structure, human water use and calibration
H. Müller Schmied,Stephanie Eisner,Daniela Franz,Martin Wattenbach,Felix T. Portmann,Felix T. Portmann,Martina Flörke,Petra Döll +7 more
TL;DR: In this paper, the authors investigated the sensitivity of simulated freshwater fluxes and water storage variations to five major sources of uncertainty: climate forcing, land cover input, model structure/refinements, consideration of human water use and calibration (or no calibration) against observed mean river discharge.
Journal ArticleDOI
Coupled estimation of 500 m and 8-day resolution global evapotranspiration and gross primary production in 2002-2017
Yongqiang Zhang,Yongqiang Zhang,Dongdong Kong,Rong Gan,Rong Gan,Francis H. S. Chiew,Tim R. McVicar,Qiang Zhang,Yuting Yang +8 more
TL;DR: In this article, the authors estimate 8-day global evapotranspiration and gross primary production at 500m resolution from July 2002 to December 2017 using a coupled diagnostic biophysical model (called PML-V2) built using Google Earth Engine, taking MODIS data (leaf area index, albedo, and emissivity) together with GLDAS meteorological forcing data as model inputs.
References
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Journal ArticleDOI
Overview of the radiometric and biophysical performance of the MODIS vegetation indices
TL;DR: In this paper, the authors evaluated the performance and validity of the MODIS vegetation indices (VI), the normalized difference vegetation index (NDVI) and enhanced vegetation index(EVI), produced at 1-km and 500-m resolutions and 16-day compositing periods.
Journal ArticleDOI
On the Assessment of Surface Heat Flux and Evaporation Using Large-Scale Parameters
C. H. B. Priestley,R. J. Taylor +1 more
TL;DR: In this article, the large-scale parameterization of the surface fluxes of sensible and latent heat is properly expressed in terms of energetic considerations over land while formulas of the bulk aerodynamic type are most suitahle over the sea.
Journal ArticleDOI
Summarizing multiple aspects of model performance in a single diagram
TL;DR: In this article, a diagram has been devised that can provide a concise statistical summary of how well patterns match each other in terms of their correlation, their root-mean-square difference, and the ratio of their variances.
Journal ArticleDOI
Global threats to human water security and river biodiversity
Charles J. Vörösmarty,Peter B. McIntyre,Peter B. McIntyre,Mark O. Gessner,David Dudgeon,Alexander A. Prusevich,Pamela A. Green,Stanley Glidden,Stuart E. Bunn,Caroline A Sullivan,C. Reidy Liermann,Peter Davies +11 more
TL;DR: The first worldwide synthesis to jointly consider human and biodiversity perspectives on water security using a spatial framework that quantifies multiple stressors and accounts for downstream impacts is presented.
Journal Article
Evaporation and environment.
TL;DR: Progress towards a reconciliation of parallel concepts in meteorology and physiology is described, which stresses the importance of physiological restraint on the rate of transpiration from an irrigated field surrounded by dry land.
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