The green gases of the Amazon rainforest are associated with the Earth’s atmosphere

The green gases of the Amazon rainforest are connected to the earth's atmosphere

PNNL geologist Manish Shrivastava and his team have discovered an aerospace process that creates a series of beautiful landscapes over the Amazon desert. Through the process, semi-volatile gases are released, which are chemical additives bound to natural carbon that can be easily synthesized to form fine particles in the upper atmosphere, which are released in the rainforest. Amazon by chemical processes not found in the plant and skin. Found by: Nathan Johnson | Pacific Northwest National Laboratory

The gases found in the vegetation drive an unprecedented atmospheric phenomenon over the Amazon desert, according to a new study by researchers at the Pacific Northwest National Laboratory (PNNL).

There are important applications for information in aerospace science and climate modeling.

“The Amazon rainforest is the lightest on Earth, and this study has linked natural processes in the forest to aerosols, clouds, and the Earth’s radiative residue in ways never seen before. , ”said Manish Shrivastava, geologist at PNNL and lead researcher of the study.

The information is reprinted at ACS Earth and Space Chemistry.

Filling in missing data

Shrivastava and his team are studying the beautiful parts of the sky when they notice a big difference between their measurements and what is expected based on the knowledge of this time in aerial models. Through further research, the team found that the relationships between the forest and the sky have disappeared from current features that drive many of the beautiful spots in the upper sky.

The researchers discovered an unknown process involving semi-volatile gases released by plants around the Amazon rainforest and carried up into the sky by clouds. These gases are natural chemical compounds bound to carbon that can be easily synthesized to form fine particles in the upper atmosphere. This process, Shrivastava says, is very effective in making good pieces at high altitudes and cold temperatures. These beautiful parts cool the Earth by reducing the amount of sun that reaches Earth, and they also plant clouds associated with rain and the water cycle.

“Without a full understanding of the semi-volatile source of organic gases, we cannot explain the nature and role of the critical constituents at high altitudes,” Shrivastava said.

The Amazon’s greenhouse gases are polluting the Earth’s atmosphere

Earth scientists have used data collected by flying test planes to find an aerial system to create a beautiful landscape over the Amazon desert. Courtesy: Jason Tomlinson / United States Department of Labor [ARM] user

Critical knowledge of air currents

Shrivastava’s research project, funded by the Department of Energy (DOE) Early Career Research Award, is investigating the formation of aerosol compounds called isoprene epoxydiol secondary organic aerosols (IEPOX. -SOAs), measured by aircraft flying at different altitudes.

IEPOX -SOAs are ideal building blocks for small particles found at all levels of the troposphere – the piece of space that rises from the Earth’s surface and is about 20 kilometers in height. over hot spots. However, it is not enough to list the celestial models for these elements and their influence in the higher clouds on Earth.

“Because the models do not predict the IEPOX-SOA arrivals seen at 10-to-14-kilometer altitudes on Amazon, we have what I believe is flawed or inaccurate. of measurements, ”Shrivastava said. “I can explain at the surface but I can’t explain at high altitudes.”

Shrivastava and his team searched the data collected by the Grumman Gulfstream-159 (G-1), a DOE-operated aircraft operated by the Atmospheric Radiation Measurement (ARM) Aerial Facility, which flew and up to 5 kilometers in height. The company compared data collected by a German aircraft called the High Altitude and Long Range Research Aircraft, or HALO, which flew at altitudes of up to 14 kilometers. Based on the benchmarks, their deployment of IEPOX-SOA is a little less on average than what was measured, Shrivastava said. He and his colleagues outside of PNNL were unable to explain the difference between the measurements and what was expected by the models.

Prior to the team’s research, it was believed that the IEPOX-SOAs were formed by multiphase atmospheric chemical pathways based on the effects of isoprene in the gas sector and particles in the water water. However, the atmospheric chemical pathway for the production of IEPOX-SOAs in the upper troposphere is not possible due to cold and dry conditions. At that height, the clouds dried up and lacked water. Therefore, the researchers were unable to explain their foundations at 10 to 14 kilometers in altitude using the available specimens.

To unravel the mystery, the researchers combined high -resolution plane measurements and local precision simulations made using supercomputing resources at the Environmental Molecular Science Laboratory at PNNL. Their research revealed what was not known about the atmosphere. A semi-volatile gas called 2-methyltetrol is carried by the clouds into the cold troposphere. The gas then condenses to form particles that are known as IEPOX-SOA by the aircraft.

“This is important information because it helps us understand how these beautiful parts work, and therefore shed more light on how natural processes affect the world and give us clouds. and rain, ”Shrivastava said. “With global warming and rapid deforestation in many parts of the Amazon, humans are disrupting large -scale natural processes that create beautiful particles in the air and transform them. global warming. ”

Opening the doors for space exploration

Having the team just cut the skin, Shrivastava said, learning about this new air conditioning process and how it relates to the creation of good parts in the air. He said the new process, seen from the plants, could explain the vast expanse of air space over forest areas around the world.

“On a larger scale, this is just the beginning of what we will see and open up new frontiers of research into aerosol-cloud interactions,” he said. “Understanding how the forest is growing in these areas can help us understand how deforestation and climate change are related to global warming. earth and the water cycle. ”


Air studies show that desert soil plays an important role in creating cirrus clouds


More information:
Manish Shrivastava et al, Skin Aggregation and In-Plant Biochemistry and Convection to Preserve the Best Particles on the Amazon desert, ACS Earth and Space Chemistry (2022). DOI: 10.1021 / acsearthspacechem.1c00356

Provided by Pacific Northwest National Laboratory

Directions: Amazon rainforest gases threaten Earth’s atmosphere (2022, April 6) Retrieved 6 April 2022 from https://phys.org/news/2022-04-amazon-rainforest-foliage- gases-affect.html

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