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#1 Price volatility and food security (2011) #2 Land tenure and international investments in agriculture (2011) #3 Food security and climate change (2012) #4 Social protection for food security (2012) #5 Biofuels and food security (2013) #6 Investing in smallholder agriculture for food security (2013) #7 Sustainable fisheries and aquaculture for food(More)
The views expressed do not necessarily reflect the official views of the Committee on World Food Security, of its members, participants, or of the Secretariat. This report is made publicly available and its reproduction and dissemination is encouraged. Non-commercial uses will be authorized free of charge, upon request. Reproduction for resale or other(More)
This study used time-series of NDVI datasets at a spatial resolution of 8 km and 15-day interval to identify the spatial patterns of cropland phenology in China. To do so, a smoothing algorithm based on an asymmetric Gaussian function was first performed on NDVI dataset to minimize the effects of anomalous values caused by atmospheric haze and cloud(More)
—Four radiative transfer equations for Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) bands 11, 12, 13, and 14 are built involving six unknowns (average atmospheric temperature, land surface temperature, and four band emissivities), which is a typical ill-posed problem. The extra equations can be built by using linear or nonlinear(More)
Based on surface energy balance and the assumption of fairly invariant evaporative fraction (EF) during daytime, this study proposes a new parameterization scheme of directly estimating daily EF. Daily EF is parameterized as a function of temporal variations in surface temperature, air temperature, and net radiation. The proposed EF parameterization scheme(More)