Earth Observation Group

Utilizing cutting edge satellite technology and data to inform stakeholders on issues related to oil and gas, power outages, forest fires, and fishing.


The Earth Observation Group (EOG) specializes in nighttime observations of lights and combustion sources worldwide. The group started working with Defense Meteorological Satellite Program (DMSP) data in 1994 and has produced a time series of annual cloud-free composites of nighttime lights. EOG’s current focus is on deriving products from nighttime Visible Infrared Imaging Radiometer Suite (VIIRS) data.

Slash and Burn Agriculture in Sub-Saharan Africa

These purple, blue, and green placemarks showing heat signatures recorded by VIIRS Nightfire (VNF) over Africa have put a perspective on the vast use of slash and burn farming techniques happening as of Feb. 26, 2020. Slash and burn agriculture techniques is thought...

Image of the day – VBD near Spratly Islands

This image shows VIIRS boat detections (VBD) from last night in the South China Sea.  The Spratly Island disputed waters are shown in yellow.   Portions of the zone are claimed by Vietnam, Philippines, Taiwan, China, Malaysia and Brunei.  In recent years China...

Decrease of VBD detections amid COVID-19 near Hong Kong

The Chinese Lunar New Year is a day of celebration around the world. It's a huge holiday in China, many industries close for several days. With the rise of COVID-19 and growing concerns of infection Hong Kong closed numerous points of entry from mainland China,...

Oil Industry in North Dakota

This satellite image superimposed with data from VIIRS Nightfire (VNF) displays the north-west corner of North Dakota. Each pin is a specific heat signature from one or more of the more than 16,000 active wells in the region that falls in the same detector footprint....

VIIRS Nightfire Detections in Colombia and Venezuela, February 17, 2020.

This image shows the VIIRS nightfire (VNF) detections from early this morning in the northern end of South America.  The placemarks indicate detections, which are color coded based on temperature.  Red are the hottest and are locations with natural gas flaring. ...



Global Gas Flare Observed From Space

With VIIRS Nightfire (VNF), EOG continues to monitor each and every single one gas flares around the world. Annual summary of global gas flare activities is also compiled. Learn more

Looking for older dataset produced with DMSP? Learn more

VIIRS Lumen Watch

A quick and comprehensive way to monitor an area of interest with Nighttime Light. Especially useful to monitor the trend and incidents of power supply. See our demo for Rohingya Refugee Camp near the border of Bangladesh and Myanmar. Demo





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