remote sensing Archives - State of the Planet

view of africa from space

Pictures Worth a Thousand Words: How Satellite Imagery is Improving Agriculture in Developing Countries

A partnership between two research institutes is helping to promote sustainable land-use practices in African nations.

by |July 18, 2018

Students Practice GIS and Remote-Sensing Field Work in Black Rock Forest

When it comes to learning about data collection techniques, there is no substitute for field work. In October, three Columbia classes embarked on a field trip to the Black Rock Forest in Cornwall, New York, to get some hands-on experience.

by |December 19, 2017

New Model Helps in Fight Against Deadly Parasitic Disease

IRI scientists and colleagues from South Africa are using satellites to detect seasonal water bodies that harbor schistosomiasis, the deadliest of the tropical neglected diseases.

by |August 3, 2017

Exploring Our Changing Earth, in Real Time

Lamont-Doherty Earth Observatory scientists are loading drones with high-tech instruments and using satellites and undersea cables that are interacting with sensors in some of the most remote locations on Earth to gather data in real time and uncover the secrets of our planet.

by |January 4, 2017
The first of six ALAMO floats parachutes into the Ross Sea off Antarctica to begin profiling the water. Their mission is to check for areas where warmer than normal water could put the Ross Ice Shelf at risk. Photo: Tej Dhakal/Lamont-Doherty Earth Observatory

Antarctica Has a New Explorer in the Water Near a Key Ice Shelf

The first of six ALAMO floats parachuted into the Ross Sea off Antarctica to begin profiling the water in a check for areas where warmer than normal water could put the Ross Ice Shelf at risk.

by |December 2, 2016
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.

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.

Sea Change

Gliders and buoys and robots — oh my!
Over and through the ocean they fly.
Oodles of data from sensors galore,
Studied by many, far from the sea’s roar.

by |March 21, 2014