The Aqua-Crop simulation model has been playing a crucial role in assessing the performance of existing strategies for management irrigation schemes improving agricultural water use efficiency. This study evaluated using Onion crops under deficit and mulch practices semi-arid Nigeria. Measurements were taken from experimental plots which consisted each at 4 levels used to evaluate canopy cover,...

1 A productivity growth rates in Africa have lagged behind the rest of the world due to lack of investment in agriculture in general and in agricultural research and development (R&D) in particular.1,2 Low productivity has especially affected basic African food crops such as sorghum, millet, cassava, sweet potato and cowpea, which are barely traded inter nationally and which benefited very litt...

The triangle method has been applied to derive a weekly indicator of evaporative fraction on vegetated areas in a temperate region in Northern Italy. Daily MODIS Aqua Land Surface Temperature (MYD11A1) data has been combined with air temperature maps and 8-day composite MODIS NDVI (MOD13Q1/MYD13Q1) data to estimate the Evaporative Fraction (EF) at 1 km resolution, on a daily basis. Measurements...

This paper describes AQUA our question answering over the Web. AQUA was designed to work over heterogeneous sources. This means that AQUA is equipped to work as closed domain and in addition to open-domain question answering. As a first instance, AQUA tries to answer a question using a Knowledge base. If a query cannot be satisfied over a knowledge base/database. Then, AQUA tries to find an ans...

This study presents our methods to produce multi-day Terra, Aqua, and Terra-Aqua moderate resolution imaging spectroradiometer (MODIS) snow cover composite images respectively from daily Terra MODIS, Aqua MODIS, and both Terra and Aqua MODIS snow cover products, with flexible starting and ending dates and a user-defined cloud cover threshold. The methods are applied to Colorado Plateau, USA and...

This paper describes AQUA, a question answering system. AQUA combines Natural Language processing (NLP), Ontologies, Logic, and Information Retrieval technologies in a uniform framework. AQUA makes intensive use of an ontology (which encode knowledge) in several parts of the question answering system. The ontology is used in the refinement of the initial query, the reasoning process (a generali...