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Earth & Environment

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A global map indicating the locations of mangrover forests.

Earth & Environment

Measuring the biomass of a mangrove forest

Jesse Rogerson, PhD

Canada Aviation and Space Museum

How much carbon dioxide can a tree absorb and store? That's a tough question to answer. A group from the University of Maryland and NASA's Goddard Space Flight Center went to Pongara National Park in Gabon to gather data on a massive Mangrove forest: the structure of the trees, their thickness and density, and even the biomass below the ground. These data will help answer questions on carbon storage, coastline degradation, and help them compare to other mangrove forest structures around the

A false colour image of the Atchafalaya Delta taken by NASA's Landsat 8 satellite.

Earth & Environment

Research has Shown Ponds Along the Mississippi are Growing in Size due to Wind Erosion

Jesse Rogerson, PhD

Canada Aviation and Space Museum

A study published in the April 2017 issue of Geophysical Research Letters has shown that ponds are, on average, growing in size, and that growth is caused by the prevailing winds. This was shown by the study of over 10,000 satellite images taken between 1982 to 2016. A study like this will help conservation and environmental workers develop plans for maintaining vulnerable ponds.

A heat map of the American south west, including California, Arizona, Nevada, New Mexico, Utah, and Colorado. The map indicates where the temperature at a given location is above or below historical average.

Earth & Environment

The June Heat-Wave of the American South West

Jesse Rogerson, PhD

Canada Aviation and Space Museum

In June 2017, the American south west experienced some of the hottest temperatures felt in a long time. It was hot enough to ground air planes, and even caused some deaths. NASA's Aqua satellite measured the temperature on the surface of the Earth during the heat wave, and here is some of the results.

A map of Canada which shows the locations of all forest fires and logging between 1985 to 2010.

Earth & Environment

A complete map of forest disruption in Canada 1985-2011

Jesse Rogerson, PhD

Canada Aviation and Space Museum

Researchers from the Canadian Forest Service have created a time-series map of where and how forests have been disrupted between the years of 1985 and 2011. This is specifically tracking logging/harvesting and forest fires. A staggering 10 percent of our country's total forests saw some kind of damage over the almost 30 years. This type of research is helpful in tracking the Earth's carbon cycle, which is critical to understanding our changing climate.

A false colour image taken by NASA's Sentinel-1A focussed on the 130 kilometer-long crack in the Larsen C ice shelf on the Antarctic Peninsula.

Earth & Environment

Tracking a Crack in the Antarctic Ice Sheet

Jesse Rogerson, PhD

Canada Aviation and Space Museum

Scientists have been closely following the growth of a large crack in the Larsen C ice shelf on the Antarctic Peninsula. From late 2016 until now, the crack has grown about 150 km long, accelerating in late June 2017. In these dark months, the most recent observations have been done by Thermal Infrared Sensor (TIRS) on Landsat 8. If the crack reaches the coast, which is just about 13 km away, the ice will begin to calve and could be the largest iceberg ever recorded.

A satellite image of the Patuxent River.

Earth & Environment

A Senator and a Citizen Scientist

Jesse Rogerson, PhD

Canada Aviation and Space Museum

Senator Bernie Fowler from Maryland, USA has been measuring the clarity of the water in the Patuxent River every June for the last 30 years. His chosen method of measurement? White sneakers. He wades into the river until he cannot see his white sneakers anymore and then records how deep the water is at that point. Some years he can wade in much further than others. What began as a simple test of the health of Maryland's waters has turned into a 30 year long citizen science and public outreach

A satellite image of the arabian sea.

Earth & Environment

What Can We Learn from Sunglint?

Jesse Rogerson, PhD

Canada Aviation and Space Museum

It's amazing what you can learn from a picture. Take, for instance, this shot taken by NASA's Terra Satellite. It is of the Arabian Sea near Oman. The Sun can easily be seen reflecting off the still water of the sea back to the satellite, a phenomenon known as called 'sunglint.' But what about the dark, snake-like feature stretching through the middle of the reflection? Turns out... it's choppy water! The wind churns the water slightly, making it not as reflective as still water. Using an image

A satellite image of Batagaika Crater in Siberia, Russia.

Earth & Environment

Batagaika Crater Expands

Jesse Rogerson, PhD

Canada Aviation and Space Museum

The Batagaika Crater is not a crater at all, but a depression in northern Russia. It is being caused by the thawing of permafrost, and depressions like this are occurring all over the north. Batagaika is by far the largest depression. Its erosion has been documented by satellites, and now appears to have doubled in area since 1999. While depressions like this are a result of climate change, they also allow scientists to easily study things that were once buried.

Satellite image of the snowpack in the Sierra mountains

Earth & Environment

The Snowpack in the Californian Mountains Quadruples

Jesse Rogerson, PhD

Canada Aviation and Space Museum

Data from NASA's Airborne Snow Observatory shows that the snowpack in the Tuolumne Basin of the Sierra Nevada mountains is 1.5 cubic kilometers, which is more than the previous 4 years combined. Californians are surely enjoying the extra precipitation, as they have been in a drought for the last 5 years. The Airborne Snow Observatory uses a combination of LIDAR and Imaging Spectrometer fixed to a small plane to measure the snowpack in the mountains of California.

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