Overlay satellite images in Google Earth Pro, Eyes on the Earth
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Google recently unveiled a new feature, “Waterways from Earth,” on Google Earth. The program relies on NASA and NOAA images to show our dynamic planet’s waterways from space. Here’s more about the science and stories behind those images.
Google Earth Pro ways that are visible even from space
Remote Rupert Bay in northern Quebec is a place where the majesty and dynamism of fluid dynamics is on display. With several rivers pouring into this nook of James Bay, the collision of river and seawater combines with the churn of tides and the motion of currents to make swirls of colorful fluid that could impress even the most jaded of baristas.
Fluid dynamics on full display
After islands sink, coral remains
Google Earth Pro ways that are visible even from space
NASA’s Earth Observing-1 satellite captured this natural-color image of South Keeling Islands in 2009. Coral atolls which are largely composed of huge colonies of tiny animals such as cnidaria form around islands. After the islands sink, the coral remains, generally forming complete or partial rings. Only some parts of South Keeling Islands still stand above the water surface. In the north, the ocean overtops the coral.
Storm stirs sediment
Category 3 Hurricane Gonzalo passed over Bermuda in 2014, stirring up sediment in the shallow bays and lagoons around the island and spreading a huge mass of sediment across the North Atlantic Ocean.
Stores of calcium carbonate sediments are moved from the shallows to the deep ocean by storms or density flows.
Storm-induced export of carbonate sediments into the deep ocean where they mostly dissolve is a significant process in the ocean’s carbonate and carbon cycles. It’s also important for the eventual neutralization of excess carbon dioxide entering the oceans because of increasing atmospheric CO2 concentrations from fossil fuel combustion.
The Gulf Stream in infrared
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The Gulf Stream is an important part of the global ocean conveyor belt that moves water. And heat across the North Atlantic from the equator toward the poles. Stretching from tropical Florida to the doorstep of Europe. This river of water carries a lot of heat, salt and history. It is one of the strongest currents on Earth, and one of the most studied.
Overlay satellite images in Google Earth Pro, Eyes on the Earth
This image shows a small portion of the Gulf Stream about 300 miles (500 kilometers) east of Charleston. South Carolina, in infrared.
“Infrared bands measure how much energy is emitted by the surface of the Earth at particular wavelengths,” said:. Matthew Montanaro, a researcher on NASA’s Landsat team. “We can calculate the surface temperature from these measurements through math and some modeling. Essentially, the higher the infrared signal measured, the higher temperature on the surface.”
Waves beneath waves
Overlay satellite images in Google Earth Pro, Eyes on the Earth
This photograph, taken in 2013 from the International Space Station (ISS). Shows the north coast of Trinidad and a series of subtle, interacting arcs in the southeastern Caribbean. These are known as “internal waves,” the surface manifestation of slow waves that move well beneath the surface. Internal waves produce enough of an effect on the sea surface to be seen from space, but only where they are enhanced due to sunglint, or reflection of sunlight, back toward the Space Station.
Land of lakes
During the last Ice Age, nearly all of Canada was covered by massive ice sheets. Thousands of years later, the landscape of Nunavut Territory “our land” in the Inuktitut language – still shows the scars. Surfaces that were scoured by retreating ice and then flooded by Arctic seas are now dotted with millions of lakes, ponds and streams.
This area is frequently referred to as “Barren Grounds” because the soil remains frozen for much of the year, limiting the growth of trees and agriculture. However, looking beyond the “visible” spectrum reveals details from space. This false-color image from our Terra satellite shows vegetation in red, showing that during the summer thaw there is plenty of plant life in the form of lichens, mosses, shrubs and grasses.
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Research
In summary:
After the islands sink, the coral remains, generally forming complete or partial rings. Only some parts of South Keeling Islands still stand above the water surface.
It’s also important for the eventual neutralization of excess carbon dioxide entering the oceans because of increasing atmospheric CO2 concentrations from fossil fuel combustion.
Thousands of years later, the landscape of Nunavut Territory “our land” in the Inuktitut language still shows the scars. This area is frequently referred to as “Barren Grounds” because the soil remains frozen for much of the year, limiting the growth of trees and agriculture. However, looking beyond the “visible” spectrum reveals details from space. This false-color image from our Terra satellite shows vegetation in red, showing that during the summer thaw there is plenty of plant life in the form of lichens, mosses, shrubs and grasses. During the last Ice Age, nearly all of Canada was covered by massive ice sheets. Thousands of years later, the landscape of Nunavut Territory “our land” in the Inuktitut language – still shows the scars. Surfaces that were scoured by retreating ice and then flooded by Arctic seas are now dotted with millions of lakes, ponds and streams.
Revised September 21, 2023
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