Center for International Earth Science Information Network

High-resolution settlement data

CIESIN Teams with Facebook to Develop Open, Improved Settlement Data

New high-resolution population data will help us understand better how people are distributed in many countries throughout the world—as part of Facebook’s goal to connect people everywhere to the Internet.

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Connecting Space to Village in West Africa

A new project, SERVIR-West Africa, will use space-based climate, weather land cover, and other NASA satellite data to address issues such as food security and the availability of fresh water in Ghana, Burkina Faso, Senegal and Niger.

Map of flood and drought exposure in transboundary river basins

Report Assesses Risks to World’s Shared River Basins

Risks for the world’s Transboundary River Basins are projected to increase in the next 15–30 years, particularly in four hotspot regions: the Middle East, Central Asia, the Ganges-Brahmaputra-Meghna basin, and the Orange and Limpopo basins in Southern Africa.

The Battery Park Underpass in Manhattan, flooded with seawater during Superstorm Sandy. Photo: NYC Department of Transportation

Helping Communities Respond to Climate Change

A new tool helps scientists communicate better with communities on global climate change issues, increasing awareness and stakeholder engagement.

Figure of two images. The one of the left shows 2015 estimates of population density of a coastal region in Kenya from CIESIN’s Gridded Population of the World, version 4 (GPWv4), which is based on census data. On the right, New Facebook estimates of population density in the same coastal region in Kenya. This allocation, which is derived from processing of third party satellite imagery and incorporates GPWv4, provides a higher resolution map of population distribution.

Working with Facebook to Create Better Population Maps

Knowing how settlements are distributed across the landscape—e.g., in clusters, along roads or waterways, or scattered widely—has important implications for designing infrastructure, improving access, and promoting sustainability.

Map showing exposure to fine-particulate matter from 1999-2011

The Changing Face of Air Quality

Looking at regional differences in PM2.5 concentrations gives us a sense of the changing face of air quality throughout the world.

Map of hazards data points

Mapping Tool Lets Users Pinpoint Hazards Data

The SEDAC Hazards Mapper is designed for disaster risk managers, humanitarian response organizations, public health professionals, journalists and others needing a quick assessment of the potential dangers posed by a major hazardous event or developing emergency.

Map showing teen literacy rates in Nigeria, 2006

Teen Literacy in Nigeria is Lower in the North

In Nigeria, differences in adolescent literacy rates between states are striking—higher in the South and lower in the Northeast.

2001 mapon the left and 2010 map on the right show change in landcover classification on the border between Haiti and Dominican Republic

In Haiti, Exploring What Drives People to Alter the Landscape

Study of the Pedernales Watershed, located along Haiti’s southern national boundary with the Dominican Republic, may provide insights into the stark contrast in land cover patterns between the two countries.

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A Spatial Analysis of the 2008 Itajaí River Valley Disaster

Biophysical and socioeconomic risk factors—such as terrain, population distribution, settlement patterns, poverty, and governance—can combine to produce high levels of vulnerability to heavy rainfall, flooding, and landslides.