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http://plue.sedac.ciesin.columbia.edu/plue/ddviewer/ddv30-USMEX/ US-Mexico Demographic Data Viewer Overview The US-Mexico Demographic Data Viewer (US-Mexico DDViewer) is an easy-to-use World Wide Web accessible application that provides rapid data mapping, viewing, and analysis of more than 200 variables that are congruent between United States and Mexico. A useful tool for browsing and visualizing patterns at geographic levels ranging from regions to counties/municipios, the US-Mexico DDViewer may be used to map population, vital statistic, land area, and household data. Data The core data is a collection of more than 200 variables from the 1990 U.S. Census Summary Tape File (STF) 3A/1A, CDC Wonder (vital statistics data from the Centers for Disease Control and Prevention), and El Instituto Nacional de Estad stica, Geograf a e Inform tica s (INEGI) Sistema de Informaci n Municipal de Bases de Datos (SIMBAD). These data cover various subjects including: = = US-Mexico DDViewer is one of several products included in SEDAC s Population, Land Use and Emissions Data Project. This project represents a unique effort to link georeferenced demographic and other socioeconomic data products with remote sensing data related to land cover and use. Data on population dynamics and distribution have been identified as key elements in understanding human interactions with the environment and in considering possible responses to global environmental change. = = = = = = General population Population density Persons by age Households by size Births and deaths Marital status Urban/rural status Land area Users The US-Mexico DDViewer is a valuable tool for state and local planners, businesses, marketing and public relations firms, public officials, nonprofit organizations, teachers, students, and natural and social scientists. US- Mexico Demographic Data Viewer Access The US-Mexico Demographic Data Viewer is available free of charge through the World Wide Web at the Uniform Resource Locator (URL): http://plue.sedac.ciesin.org/plue/ ddviewer/ddv30-USMEX/ All pages are available in English and most are available in Spanish. Visualization The map below is an example of what a query of US-Mexico DDViewer would look like. This particular map highlights the 1990 population density at the county/municipio level for the United States and Mexico. Summary Statistics The adjacent table presents the summary statistics for the variable population per square mile at the county/municipio level in the United States and Mexico. In addition to the map and summary statistics table, the US-Mexico DDViewer also produces a table of values for each query. The user can change many map features — such as color, scheme, size, and legend — create new variables from existing ones, and customize the range for displaying output. Summary Statistics of Population per Square Mile at the County/ Municipio Level (US and Mexico, 1990) N MIN: MEAN: MAX: Q1: Q2: Q3: 5515 — Number of observations 0.2 — Smallest Value 369.38 — Mean Value 52962.5 — Largest Value 23.3 — 25th Percentile 60.7 — Median 174.9 — 75th Percentile STD: 2275.49 — Standard Deviation http://www.ciesin.columbia.edu CIESIN User Services [email protected] +1-845-365-8920 9 a.m. — 5 p.m. U.S. Eastern time Monday through Friday CIESIN Columbia University PO Box 1000 61 Route 9W Palisades, NY 10964 USA 1-845-365-8920 1-845-365-8922 (fax) Columbia University in the City of New York This service is provided by the Center for International Earth Science Information Network (CIESIN) at Columbia University though its Socioeconomic Data and Applications Center (SEDAC). SEDAC is supported by the National Aeronautics and Space Administration (NASA) under contract NAS5-98162. CIESIN and CIESIN’s world map logo are registered trademarks of the Trustees of Columbia University in the City of New York