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Chinese scientists discover new pattern of solar rotation

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Chinese scientists discover new pattern of solar rotation

2024-06-13 22:42 Last Updated At:06-14 15:27

Chinese scientists have made a significant breakthrough in solar research through the use of their solar exploration satellite, the Chinese H-alpha Solar Explorer (CHASE), which has led to the discovery of a new pattern of solar atmospheric rotation.

The team successfully generated a precise three-dimensional representation of solar atmospheric rotation for the first time ever, the findings of which have been published in the renowned international journal "Nature Astronomy" on Thursday. The data was obtained by the CHASE satellite, China's first solar scientific and technological experimental satellite which was launched back in 2021.

Following an extensive study, researchers said they have obtained the world's first three-dimensional image of solar atmospheric rotation, unlocking more secrets about our Sun.

Traditionally, as a sphere rotates, the higher the atmospheric altitude, the slower it moves. However, the research team discovered that as the solar atmospheric altitude increases, the Sun's rotational speed also increases.

"Since the rotational changes caused by viscous effects should gradually decrease from the bottom to the top, there must be a force driving the rotation of the upper atmospheric layers. Therefore, this finding will have significant scientific implications for solar activity and the evolution of the Sun," said Ding Mingde, principle investigator of the project and a professor at the Nanjing University.

The journal said results have important implications for understanding more about the subsurface processes of the Sun and its atmospheric dynamics.

The CHASE satellite was launched in October 2021 and has a design life of three years. It is in placed in a locked orbit around the Earth keeping it in the same fixed position relative to the Sun, enabling the craft to collect data and capture images.

The satellite also has the Chinese name of "Xihe", which is the same name of the Sun Goddess who created the calendar in ancient Chinese mythology.

Chinese scientists discover new pattern of solar rotation

Chinese scientists discover new pattern of solar rotation

Chinese scientists discover new pattern of solar rotation

Chinese scientists discover new pattern of solar rotation

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4,500 entities registered on China's voluntary carbon market for emission reductions

2024-07-18 17:30 Last Updated At:18:07

Over 4,500 enterprises have registered on China's voluntary carbon market for greenhouse gas reductions, also known as the China Certified Emission Reduction (CCER) scheme, since it was launched on Jan 22 this year.

The CCER program, enabling companies within specific sectors to trade their carbon reduction credits following their voluntary engagement in emission-reduction initiatives, supplements the country's existing Emissions Trading System (ETS), which has been operational since July 2021 and is limited to enterprises with designated emission quotas.

Under the CCER program, carbon-emitting companies compensate credit-holding entities for carbon credits and to offset their own emissions. At present, the trading market is mainly open to entities in four major fields: afforestation, solar power generation, offshore wind power generation and mangrove planting.

"So far, the CCER registration system has synchronized its old and new accounting information and handled more than 4,500 new accounts, including nearly 40 project owners, 1,220 national and local key emission reduction units, and the rest are investment institutions or common enterprises," said Xu Huaqing, principal investigator of the National Center for Climate Change Strategy and International Cooperation.

As a market-based emission reduction tool, the scheme plays a significant role in reducing emissions cost and achieving carbon peaking and carbon neutrality goals.

4,500 entities registered on China's voluntary carbon market for emission reductions

4,500 entities registered on China's voluntary carbon market for emission reductions

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