The LandScan Global Population Databases, developed at the Department of Energy's Oak Ridge National Laboratory, represent resolution global population distribution databases available. This is a geographically based, population distribution model.
LandScan is a global population database that shows geographical distribution of population at one-kilometer resolution over an average 24 hour period.
The LandScan algorithm uses spatial data and imagery analysis technologies and the most up-to-date census data within an administrative boundary. Accurate administrative boundaries are an integral part of the LandScan population distribution modeling process. These population distribution models are tailored to match the data conditions and geographical nature of each individual country and region.
Most national censuses count populations by measuring where people sleep (or reside) rather than where they work or travel. LandScan integrates daytime movements and collective travel habits into a single measure to produce a better representation of where people are located during an average day.
With improvements added this year, high-resolution imagery sources were used extensively for validation to refine urban areas, land cover data, and thousands of smaller villages and populated places.
Description adapted from http://www.eastview.com/online/landscan , which provides additional information
The College Affordability and Transparency Center includes information for students, parents, and policymakers about college costs at America’s colleges and universities. The Center includes several lists of institutions based on the tuition and fees and net prices (the price of attendance after considering all grant and scholarship aid) charged to students. These lists meet requirements outlined in the Higher Education Opportunity Act (HEOA) and will be updated annually and posted on the College Navigator website by July 1.
The lists were generated using data collected by the National Center for Education Statistics (NCES) through the Integrated Postsecondary Education Data System (IPEDS). IPEDS is a mandatory data collection for institutions that participate in or are applicants for participation in any federal student financial aid program authorized by Title IV of the Higher Education Act of 1965, as amended (20 USC 1094, Section 487(a)(17) and 34 CFR 668.14(b)(19)).
The 2012 lists are based on data collected during the 2010-11 IPEDS data collection cycle, the most recent data that have undergone the full NCES data review process and been publicly released via the IPEDS Data Center. During the 2011-12 IPEDS data collection, institutions also had the opportunity to review the data they submitted in 2010-11 for accuracy and revise it, if necessary, via the IPEDS Prior Year Revision System. The lists reflect any revisions made by institutions through that process. Both the originally reported data and revised data for all Title IV institutions are publicly available via the IPEDS Data Center.
Lists were generated for:
- Highest tuition and required fees: A list of the five percent of institutions that have the highest tuition and required fees for the 2010-11 academic year
- Highest net price: A list of the five percent of institutions that have the highest net price for the 2009-10 academic year
- Lowest tuition and required fees: A list of the ten percent of institutions that have the lowest tuition and required fees for the 2010-11 academic year
- Lowest net price: A list of the ten percent of institutions that have the lowest net price for the 2009-10 academic year
Pew Global Attitudes examines international public opinion on a broad range of issues, from people’s assessments of their own lives to views about the current state of the world.
Pew Hispanic chronicles the diverse and changing lives of the U.S. Latino population and their impact on the nation. It examines Latino public opinion, migration patterns and education and economic trends.
Pew Internet conducts original research that explores the growth of the internet and its impact on children, families, communities, the workplace, schools, health care and civic/political life. Major reports have examined teens and technology, health online and libraries in a digital age.
Pew Forum delivers information on issues at the intersection of religion and public affairs in the U.S. and around the world. Major reports examine politics and faith, religious beliefs and practices and global religious demographics.
Pew Social & Demographic Trends studies behaviors and attitudes of Americans in key realms of their daily lives, using original survey research and analysis of government data. Major reports have examined the racial wealth gap, the Millennial Generation and marriage & family trends.
PEJ tracks the transformation of journalism in a changing information landscape through its annual State of the News Media report and other special reports. Major reports examine news coverage, economic models for news and audience trends.
This project project provides independent public opinion survey research about American attitudes toward politics and policy. Formerly, the Times Mirror Center for the People & the Press (1990-1995), the Center has been sponsored by The Pew Charitable Trusts since 1996. Major reports examine long-term trends in political values, U.S. views on policy issues and priorities and political knowledge and news interest.
Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping America and the world. It conducts public opinion polling, demographic research, media content analysis and other empirical social science research. Pew Research does not take policy positions. It is a subsidiary of The Pew Charitable Trusts.
There are links to the individual projects from this gateway site.
Pew Research is a nonprofit, tax-exempt 501(c)3 organization and a subsidiary of The Pew Charitable Trusts. All of its reports and datasets are made freely available in order to inform the public, the press and policymakers.