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.

Important Notice

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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.

Power Outage in Texas Due to Extreme Weather

By Feng Chi, (David) Hsu Download full resolution image here Texas was hit by snow and freezing temperatures in mid-February 2021. Numerous areas experienced power outages as power plants and renewable energy sources shutdown and have been slow to restart. The outages...

Gravity Wave over United States

By Elijah Mt. Castle The propagation of a gravity wave has been detected in cloud cover over the Eastern United States. A gravity wave is a wave generated in a fluid by the force of gravity or buoyancy attempting to restore equilibrium in the medium, i.e. the waves...

Hawaiian Volcano Becomes Active Once More

By Elijah Mt. Castle The Hawaiian volcano Kīlauea has become active. Kīlauea has been erupting since December 30th 2020. All lava flows are currently in the uninhabited lava lake and pose no threat. Kīlauea last erupted in 2018, when it erupted for 3 months straight....

Country Wide Power Outage in Pakistan

By Elijah Mt. Castle and Feng Chi, Hsu Pakistan's national power grid experienced a blackout lasting 18 hours in most areas. The power failure was caused by "an engineering fault" in southern Pakistan. The fault engaged safety systems across the grid and shut down the...

Mount Etna Erupts

By Elijah Mt. Castle The Sicilian volcano of Etna erupted on Dec 13th in the night. Etna is the most active volcano in Europe. The eruption does not threaten the surrounding city of Catania. The eruption produced a jet of lava an estimated 100m into the air and an ash...



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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