MIAMI (CBSMiami/CNN) – Space technology has long been used to help forecast weather, spot wildfires, and aid scientists’ understanding of the climate crisis.
But this next-generation German satellite is being called a game-changer for its ability to use more than 250 colors to produce the most precise data on water, soil, and vegetation in satellite history, scientists say.
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The Environmental Mapping and Analysis Program, or EnMAP, is capable of measuring things that would otherwise be invisible, from the degree of pollution in a river flowing through a forest to the nutrient supply within a plant.
The images EnMAP will take are so high in resolution that scientists will be able to study the environment at a previously unachievable level of detail for space-based observing systems, scientists told CNN.
The highly sophisticated satellite was designed to study the environmental impact of the climate crisis, observe how environments respond to human activities and monitor the management of the world’s natural resources.
“There have already been great moments, and I can’t wait to see the data, there are so many possible implications,” EnMAP Mission Manager Sebastian Fischer told CNN a week after EnMAP was successfully launched on April 1.
A recent series of reports from the UN’s Intergovernmental Panel on Climate Change — based on research by hundreds of scientists around the world — found that the Earth is warming faster than scientists had previously thought, that we are running out of ways to adapt but that we already have the solutions at our fingertips.
EnMAP’s data will help scientists track and examine environmental changes in real time — whether they are natural or manmade — and potentially help to develop the next generation of long-term climate forecast models, Anke Schickling, who oversees the EnMAP mission’s Exploitation and Science Program, told CNN.
“We will receive even more reliable information about man-made changes and damage to our ecosystems in the future,” said the state of Brandenburg’s Minister of Research, Manja Schüle.
“These are the best prerequisites for developing innovative measures to adapt to climate change.”
The satellite reached its destination in Earth’s orbit on April 9 — eight days after it was launched from Cape Canaveral, Florida, on a SpaceX Falcon 9 rocket. Now, scientists wait to receive its data.
“Everyone is really excited to just get the data and understand if their algorithms and the ideas of what they want to do with the data can really hold up to what they’ve been preparing for over the last couple of years,” Schickling said.
Understanding how light interacts with different materials — like plants, water, or soil — makes it easier for researchers to identify them and define their characteristics from a distance.
The satellite’s technology uses nearly 250 different colors to more accurately and specifically determine the characteristics of the land or water it observes.
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The spectrometers on the satellite first capture a photo of a section of the Earth below it.
Rather than assigning the entire photo one color to categorize it, the satellite dissects each pixel of the photo and assigns each one its most appropriate color on the spectrum.
This allows for historical precision.
“Each element the satellite observes is like a fingerprint — one of a kind,” Schickling said.
All materials on the planet’s surface reflect sunlight in a unique way.
The relationship between how something reflects light and the color assigned to the material is called a spectral signature.
These spectral signatures are unique identifiers for EnMAP.
“Without Earth observation from space, it would be very difficult to quantify the global extent of the climate crisis and its consequences,” said the Federal Government Commissioner for Aerospace Anna Christmann.
“Germany is making an important contribution to European space technology and to an intact planet.”
The satellite is designed to withstand the harsh conditions of space for at least five years, but scientists are hopeful EnMAP lasts longer for optimal data collection. And even though the EnMAP satellite is the first of its kind, there are already successor missions underway.
NASA’s Surface Biology and Geology study, for example, aims to collect data by the end of the decade to “address terrestrial and aquatic ecosystems and other elements of biodiversity, geology, volcanoes, the water cycle and applied sciences topics relevant to many societal benefit areas,” according to the program’s website.
The European Space Agency is also contributing to hyperspectral data with the CHIME satellite. CHIME will provide “support of EU- and related policies for the management of natural resources, assets, and benefits,” but no launch date has been set yet.
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