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Antarctic ice sheet loss temporarily slows due to remote influence of tropical warm pool: Chinese, foreign scientists_我的网站

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Adelie penguins (Pygoscelis adeliae) on fast ice with tourists walking in the background, Bourgeois Fjord, Marguerite Bay, Antarctica. Photo: VCG
Joint research by Chinese and international scientists have found that the rate of long-term Antarctic mass loss has slowed, driven by sea surface temperature anomalies in the remote tropical warm pool, China Central Television (CCTV) reported on Thursday, citing a statement released by the Institute of Oceanology, Chinese Academy of Sciences (CAS).
The Antarctic ice sheet is one of the major sources of uncertainty in global sea-level rise forecasts. From 2003 to 2024, the Antarctic ice sheet lost an average of approximately 140.5 billion tons each year, CCTV reported.
However, Chinese and foreign scientists have found that the Antarctic ice sheet gained roughly 695 billion tons between July 2021 and April 2023, the largest 22-month mass gain seen in nearly two decades via satellite gravimetry, the Institute of Oceanology, CAS announced on Thursday.
The scientists found out that from 2021 to 2023, sustained heavy snowfall in East Antarctica led to significant increases in snow accumulation, partially offsetting the ongoing ice loss in West Antarctica.
The scientists' research shows that this was caused by tropical ocean-driven atmospheric processes that altered moisture transport pathways and increased snowfall over Antarctica.
The research was conducted by the research team at the Institute of Oceanology at CAS, along with peers from countries including the US, Hungary and Japan. It was published in the academic journal Nature on Wednesday.
According to Wang Yunhe, first author of the research paper and an associate research fellow at the Institute of Oceanology, sea surface temperatures in the tropical western Pacific warm pool remained unusually warm from 2021 to 2023. As one of the regions with the highest sea surface temperatures and strongest heat release into the atmosphere worldwide, changes in this region can reshape atmospheric circulation.
The persistently warmer-than-normal seawater triggered large-scale atmospheric waves.
After reaching the high latitudes of the Southern Hemisphere, the waves reshaped wind patterns and moisture transport pathways. Moisture-tracking simulations show that water vapor from the mid-latitude Indian Ocean fueled heavy snowfall in East Antarctica, leading to a recovery in ice sheet mass.
Observations and climate simulations suggest that such warming events occur roughly once a decade. But these temporary pauses are not enough to reverse Antarctica's long-term ice loss. The West Antarctic ice sheet continues to shrink, while parts of East Antarctica remain increasingly vulnerable to warmer ocean waters melting ice shelves from below and speeding the flow of glaciers into the sea.
The study shows how persistent warming in the tropical warm pool can contribute to the recovery of Antarctic ice-sheet mass, highlighting the role of East Antarctic atmospheric circulation in connecting tropical climate shifts with changes in the ice sheet. The findings point to a previously overlooked climate link between the tropical warm pool and East Antarctica, offering a new perspective on how distant climate systems may shape the continent's future.
Global Times
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B | 8月25日消息，内存行业如今主要垄断在三星、海力士及美光三巨头手中，唯一可能打破这个局面的只有中国的长鑫科技，Q1市场份额做到了第四。

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D | 逛X的时候发现了一个自称为AI行业分析师的网友发帖，援引了高盛的一篇报告对中国内存公司表示了不看好的观点，说CXMT的产能已经达到了硬性上限，预计今年的产能也只能达到去年底大约24万片/月的规模。

E | 内文比较长，感兴趣的可以看看，他也认为美国封锁半导体设备的政策是有效的，尤其是用于10nm以下的EUV工艺的禁令限制了CXMT增产的能力。看高盛的研究数据，里面也没有说中国内存公司产能就没法增长的结果，反而是2024到2028年产能还在提升，2028年预估产能差不多是24年的4-5倍，比2025年也要翻倍还多，CAGR复合增长速度是还是显著高于三星等公司的。 这哥们对中国内存行业的看衰不知道哪里来，不过看了他的头像就明白了，这显然是南亚次大陆某个国家出来的高材生，能随便从一个报告中解读出中国内存行业不行的角度也不让人意外了。不过公平地说，他做出负面的解读也不一定是国籍因素，这哥们说是个AI行业研究分析师，但明显是个炒股的，任职的单位更是炒币为主，他今年6月份才加入X网站，但已经发了1400多条帖子，非常高产。只不过他发的贴子除了各种噱头之外，主要就是推介他们在炒股炒币上多成功，几乎每个两三条帖子就发一次他们提前发现了某个股票大涨的宣传。