1,721,293 research outputs found
New global pig data in support of the African Swine Fever epidemics
No full textThis data set was produced in complement to GLW published by Gilbert et al. (2018) to contain the latest subnational pig distribution data to available to date (November 2018) in support of the risk assessment of the ongoing African Swine Fever epidemics. GLW v3 dataset are organised around a pivot year, 2010 for GLW v3, which correspond to the median year of the subnational data set.
In this release, the latest sub-national data sets have been integrated with a particular focus on Asia, with, for example, new data from China (2015) and Indonesia (2017), and much higher or more recent data for other countries such as Thailand or Vietnam. All country totals have been standardized to match the 2015 FAOSTAT numbers, in order to be as close a possible to the present pig stock.
Please go through the 1_Pg_2015_Metadata.html file for more information about this dataset
New global pig data in support of the African Swine Fever epidemics
No full textThis data set was produced in complement to GLW published by Gilbert et al. (2018) to contain the latest subnational pig distribution data to available to date (November 2018) in support of the risk assessment of the ongoing African Swine Fever epidemics. GLW v3 dataset are organised around a pivot year, 2010 for GLW v3, which correspond to the median year of the subnational data set.
In this release, the latest sub-national data sets have been integrated with a particular focus on Asia, with, for example, new data from China (2015) and Indonesia (2017), and much higher or more recent data for other countries such as Thailand or Vietnam. All country totals have been standardized to match the 2015 FAOSTAT numbers, in order to be as close a possible to the present pig stock.
Please go through the 1_Pg_2015_Metadata.html file for more information about this dataset
Modelling spatial patterns of urban growth in Africa
No full textAbstractThe population of Africa is predicted to double over the next 40 years, driving exceptionally high urban expansion rates that will induce significant socio-economic, environmental and health changes. In order to prepare for these changes, it is important to better understand urban growth dynamics in Africa and better predict the spatial pattern of rural-urban conversions. Previous work on urban expansion has been carried out at the city level or at the global level with a relatively coarse 5â10Â km resolution. The main objective of the present paper was to develop a modelling approach at an intermediate scale in order to identify factors that influence spatial patterns of urban expansion in Africa. Boosted Regression Tree models were developed to predict the spatial pattern of rural-urban conversions in every large African city. Urban change data between circa 1990 and circa 2000 available for 20 large cities across Africa were used as training data. Results showed that the urban land in a 1Â km neighbourhood and the accessibility to the city centre were the most influential variables. Results obtained were generally more accurate than results obtained using a distance-based urban expansion model and showed that the spatial pattern of small, compact and fast growing cities were easier to simulate than cities with lower population densities and a lower growth rate. The simulation method developed here will allow the production of spatially detailed urban expansion forecasts for 2020 and 2025 for Africa, data that are increasingly required by global change modellers.info:eu-repo/semantics/publishe
Global cattle distribution in 2010 (5 minutes of arc)
No full textThis dataset contains the global distribution of cattle in 2010 expressed in total number of cattle per pixel (5 min of arc) according to the Gridded Livestock of the World database (GLW 3). Please go through the 1_Ct_2010_Metadata.html file for more information about this dataset and the set of included files
Global sheep distribution in 2010 (5 minutes of arc)
No full textThis dataset contains the global distribution of sheep in 2010 expressed in total number of sheep per pixel (5 min of arc) according to the Gridded Livestock of the World database (GLW 3). Please go through the 1_Sh_2010_Metadata.html file for more information about this dataset and the set of included files
Global pigs distribution in 2010 (5 minutes of arc)
No full textThis dataset contains the global distribution of pigs in 2010 expressed in total number of pigs per pixel (5 min of arc) according to the Gridded Livestock of the World database (GLW 3). Please go through the 1_Pg_2010_Metadata.html file for more information about this dataset and the set of included files
Global chickens distribution in 2010 (5 minutes of arc)
No full textThis dataset contains the global distribution of chickens in 2010 expressed in total number of chickens per pixel (5 min of arc) according to the Gridded Livestock of the World database (GLW 3). Please go through the 1_Ch_2010_Metadata.html file for more information about this dataset and the set of included files
Global goats distribution in 2010 (5 minutes of arc)
No full textThis dataset contains the global distribution of goats in 2010 expressed in total number of goats per pixel (5 min of arc) according to the Gridded Livestock of the World database (GLW 3). Please go through the 1_Gt_2010_Metadata.html file for more information about this dataset and the set of included files
Global ducks distribution in 2010 (5 minutes of arc)
No full textThis dataset contains the global distribution of ducks in 2010 expressed in total number of ducks per pixel (5 min of arc) according to the Gridded Livestock of the World database (GLW 3). Please go through the 1_Dk_2010_Metadata.html file for more information about this dataset and the set of included files
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