El Hierro volcano helps to improve algorithms used by satellites

El Hierro volcano helps to improve algorithms used by satellites

Information provided by satellites on the amount of chlorophyll-A and the roughness of the sea following the eruption of the underwater volcano off the island of El Hierro (Spain) did not coincide with the actual data collected in situ by vessels carrying

Global 10-day Fire Map: June 20 – 29, 2013

Global 10-day Fire Map: June 20 – 29, 2013

The fire map bellow accumulates the locations of the fires detected by MODIS on board the Terra and Aqua satellites over a 10-day period, from June 20  – June 29, 2013. Each colored dot indicates a location where MODIS detected at least one fire during

Global 10-day Fire Map: June 10 – 19, 2013

Global 10-day Fire Map: June 10 – 19, 2013

This fire map bellow accumulates the locations of the fires detected by MODIS on board the Terra and Aqua satellites over a 10-day period, from June 10 – June 19, 2013. Each colored dot indicates a location where MODIS detected at least one fire during the

Continuing haze over Himalayas

Continuing haze over Himalayas

Haze continues over Himalayas. At this time of year, cold air often slides down the Himalaya, coming to rest over northern India. As the cold air settles into place, it may be trapped under a layer of warmer air. Usually, air is warmer near the Earth’s surface, and

Ash plume visible from Soufriere Hills volcano, Montserrat

Ash plume visible from Soufriere Hills volcano, Montserrat

A dark plume of volcanic ash drifted from the Soufriere Hills volcano southwest across the Caribbean Sea on November 21, 2011. Although the hazard level was recently lowered, the potential for reoccurring eruptions remains quite real. On November 4, the National

Atmospheric gravity waves over the Arabian Sea

Atmospheric gravity waves over the Arabian Sea

On November 15, 2011, the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua satellite passed over the Arabian Sea and captured this true-color image of a large-scale, overlapping wave pattern. The wave pattern is not caused by ocean waves, however.

Wildfires in northern India

Wildfires in northern India

The fire season was well underway in northern India as many dozens of fires burned near the Pakistan border in late October, 2011. The Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua satellite captured this true-color image on October 27, 2011.

Ten years of satellites watching fires worldwide

Ten years of satellites watching fires worldwide

This video takes you on a narrated global tour of tens of millions of fires detected from space between July 2002 and July 2011. TThe video was created from new satellite data visualizations, and is combined with satellite views of vegetation and snow cover to show how

Heavy floods hit Mexico

Heavy floods hit Mexico

Several rivers in southeastern Mexico spilled over their banks in late October, according to the Latin American Herald Tribune. The Usumacinta River alone damaged homes and croplands in multiple cities, and isolated rural areas by washing out roads. The governor of

Wildfires and smoke in Portugal

Wildfires and smoke in Portugal

Dozens of wildfires burned across Portugal on October 14, 2011 when the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua satellite captured this true-color image as it passed over the region. A few fires, marked in red and accompanied by plumes of