The GPWv4 population data are available from the Socioeconomic Data and Applications Center SEDACC) in NASA's Earth Observing System Data and Information System and hosted by Center for International Earth Science Information Network at Columbia University (http://sedac.ciesin.columbia.edu/data/collection/gpw-v4).
Personal income is highest in Washington, DC (nearly $75,000 per head) and lowest in Mississippi (under $34,000).The population data are fascinating, too.
This species is extremely poorly known - even its status as a species was in doubt until recently - and is of significant conservation concern, although population data are still limited.
In 2006 America's National Academy of Sciences released a report on the status of pollinators in North America that concluded "for most North American pollinator species, long-term population data are lacking and knowledge of their basic ecology is incomplete".
Despite Chandler's accomplishment in creating the dataset, the resulting population data are temporally and spatially sparse as illustrated in Figs 5 and 6. Figure 5 provides a snapshot spatial view of all data points across the entire dataset for given time periods and highlights the number of population values for each city, while Fig. 6 illuminates the dataset's temporal sparseness.
Building-specific population data are often not available for public use (Lwin and Murayama 2011).
The ageing population data are taken from the Population Census (Statistics Bureau, Ministry of Internal Affairs and Communications).
General population data are presented on the prevalence and correlates of comorbidity between DSM-III-R major depressive disorder (MDD) and other DSM-III-R disorders.
For damage assessment, especially for unpredictable and rapid onset hazards such as earthquakes, detailed building inventory databases with population data are essential (Freire 2010).
As the employment data in the numerator of the employment rate are quarterly data, the annual population data are transformed in quarterly data.
More importantly, although population data are available on the local level, Germany lacks a unitary data infrastructure for sampling immigrants and other national populations.
