Ocean color is changing, study says, climate change may be to blame
The color of Earth's oceans is changing, and climate change may be to blame, according to a new study.
on July 12, the guardian reported, the study, called "from Marine ecological indicators is detected in the trend of global climate change, (Globalclimate - changetrendsdetectedinindicatorsofoceanecology), It was published in the journal Nature on 12 July. According to the study, the deep blue ocean is actually getting greener, and the change is particularly pronounced at lower latitudes.
the UK national oceanography centre at the university of Southampton (NationalOceanographyCentre) scientists kyle (BBCael) said: "we pay attention to this problem, and not care about the color, but because of the color reflect the change of state of the ecosystem."
Previous research has focused on understanding climate trends through changes in ocean greenness, which comes from chlorophyll in plankton. Kell's team looked for patterns in hue changes by looking at a more complete spectrum of colors, including red and blue, after studying more than 20 years of observations from NASA's Modis-Aqua satellite.
Different sizes of plankton scatter light differently, and different pigments absorb light differently. Studying ocean color changes can give scientists a clearer picture of changes in plankton populations, which are vital to Marine ecosystems as the base of much of the food chain.
"Almost all tropical or subtropical regions have seen significant changes in ocean color," Kell said. But he adds that there are also areas where red or blue is rising or falling.
"These changes can be subtle." "But this gives us evidence that human activity may be affecting the biosphere in large parts of the globe in ways we can't even imagine."
Michael J. Behrenfeld, an ocean productivity researcher at Oregon State University, said that while the finding makes a strong case for another consequence of climate change, it is unclear how strong those changes will be and what exactly is happening inside the ocean.
"Most likely, there are other factors involved in the changes as well." An increase in microplastic particles in the ocean, for example, would also increase light scattering, Berenfeld said.
NASA will launch in January 2024, a called PACE (Plankton, Aerosol and Cloud, oceanEcosystem) satellite, the satellite will measure to further research in the ocean hundreds of colors.
Nan Bo Yi Intern Zhang Fei-ran, The Paper News reporter