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Collaboration between artificial intelligence and Earth science communities for mutual benefit 人工智能与地球科学界互利合作
IF 15.7 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-10-09 DOI: 10.1038/s41561-024-01550-x
Min Chen, Zhen Qian, Niklas Boers, Felix Creutzig, Gustau Camps-Valls, Klaus Hubacek, Christophe Claramunt, John P. Wilson, Stefano Nativi, Anthony J. Jakeman, R. Dietmar Müller, Michael Batty, Chenghu Zhou, Fahu Chen, Qiao Wang, Fan Zhang, C. Michael Barton, Josef Strobl, Michael Meadows, Carlo Ratti, Philipp Hess, Qingsong Xu, Zhixin Zhang, Qiushi Gu, A-Xing Zhu, Hui Lin, Linwang Yuan, Guonian Lü
Artificial intelligence is rapidly being integrated into Earth science, but how Earth science may benefit artificial intelligence has been overlooked. We call for mutual balancing between the two disciplines and improving cross-disciplinary collaboration.
人工智能正在迅速融入地球科学,但地球科学如何使人工智能受益却一直被忽视。我们呼吁两个学科之间相互平衡,加强跨学科合作。
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引用次数: 0
Advancing geoscience with AI 用人工智能推动地球科学发展
IF 15.7 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-10-09 DOI: 10.1038/s41561-024-01572-5
Artificial intelligence is increasingly enabling geoscience research. Ensuring community trust in its outcomes requires education and transparency.
人工智能正越来越多地为地球科学研究服务。要确保社区对其成果的信任,就需要开展教育和提高透明度。
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引用次数: 0
Olivine’s trembling transformations 奥利维娜颤抖的变化
IF 15.7 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-10-09 DOI: 10.1038/s41561-024-01547-6
Tomohiro Ohuchi
Olivine is stable and abundant in the Earth’s upper mantle, and its transformations may drive large earthquakes deeper in the mantle, as Tomohiro Ohuchi explains.
正如 Tomohiro Ohuchi 解释的那样,橄榄石在地球上地幔中稳定而丰富,它的转变可能会推动地幔深处发生大地震。
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引用次数: 0
Subarctic permafrost formation around seafloor seeps 海底渗流周围的亚北极永久冻土形成
IF 15.7 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-10-09 DOI: 10.1038/s41561-024-01549-4
Michael Angelopoulos, Charles K. Paull
Emerging evidence indicates that groundwater flow significantly impacts the distribution and characteristics of subsea permafrost, as well as the geomorphology of the subarctic seafloor.
新出现的证据表明,地下水流对海底永久冻土的分布和特征以及亚北极海底的地貌有重大影响。
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引用次数: 0
Photoferrotrophs are inhibited by denitrification in ferruginous habitats 铁锈色栖息地的反硝化作用对光食性生物有抑制作用
IF 15.7 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-10-08 DOI: 10.1038/s41561-024-01561-8
Laboratory experiments show that Fe(II) oxidizing phototrophic bacteria, or photoferrotrophs, thought to be a major depositor of Archean and Palaeoproterozoic iron formations, are inhibited by toxic intermediates produced during denitrification in iron-rich systems. This identifies a previously overlooked stressor impacting mineral formation by photoferrotrophs during early Earth history.
实验室实验表明,在富铁系统中,反硝化过程中产生的有毒中间产物会抑制铁(II)氧化光养细菌(或称光铁嗜酸菌)的作用,而光铁嗜酸菌被认为是奥陶纪和古新生代铁地层的主要沉积物。这确定了在地球早期历史中影响光铁锈体矿物形成的一个以前被忽视的压力源。
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引用次数: 0
Geodiversity challenges for a sustainable future 可持续未来的地质多样性挑战
IF 15.7 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-10-06 DOI: 10.1038/s41561-024-01551-w
Jack Matthews, Lucie Kubalíková, Ľubomír Štrba, Helena Tukiainen
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引用次数: 0
Inhibition of phototrophic iron oxidation by nitric oxide in ferruginous environments 一氧化氮对铁质环境中光养铁氧化的抑制作用
IF 15.7 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-10-04 DOI: 10.1038/s41561-024-01560-9
Verena Nikeleit, Adrian Mellage, Giorgio Bianchini, Lea Sauter, Steffen Buessecker, Stefanie Gotterbarm, Manuel Schad, Kurt Konhauser, Aubrey L. Zerkle, Patricia Sánchez-Baracaldo, Andreas Kappler, Casey Bryce
Anoxygenic phototrophic Fe(II) oxidizers (photoferrotrophs) are thought to have thrived in Earth’s ancient ferruginous oceans and played a primary role in the precipitation of Archaean and Palaeoproterozoic (3.8–1.85-billion-year-old) banded iron formations (BIFs). The end of BIF deposition by photoferrotrophs has been interpreted as the result of a deepening of water-column oxygenation below the photic zone, concomitant with the proliferation of cyanobacteria. However, photoferrotrophs may have experienced competition from other anaerobic Fe(II)-oxidizing microorganisms, altering the formation mechanism of BIFs. Here we utilize microbial incubations to show that nitrate-reducing Fe(II) oxidizers metabolically outcompete photoferrotrophs for dissolved Fe(II). Moreover, both experiments and numerical modelling show that the nitrate-reducing Fe(II) oxidizers inhibit photoferrotrophy via the production of toxic intermediates. Four different photoferrotrophs, representing both green sulfur and purple non-sulfur bacteria, are susceptible to this toxic effect despite having genomic capabilities for nitric oxide detoxification. Indeed, despite nitric oxide detoxification mechanisms being ubiquitous in some groups of phototrophs at the genomic level (for example, Chlorobi and Cyanobacteria) it is likely that they would still be affected. We suggest that the production of reactive nitrogen species during nitrate-reducing Fe(II) oxidation in ferruginous environments may have inhibited the activity of photoferrotrophs in the ancient oceans and thus impeded their role in the precipitation of BIFs. Banded iron formation deposition by photoferrotrophic organisms in the early Earth’s oceans may have been inhibited by competition for iron and toxicity from nitrate-reducing microorganisms, according to a microbial incubation and numerical modelling study.
据认为,无氧光养铁(II)氧化物(光铁藻)曾在地球的古铁锈海洋中繁衍生息,并在太古宙和古近纪(38-18.5 亿年前)带状铁层(BIFs)的沉淀过程中发挥了主要作用。光铁锈层沉积的结束被解释为光照区以下水柱含氧量加深以及蓝藻大量繁殖的结果。然而,光能嗜水生物可能经历了来自其他厌氧铁(II)氧化微生物的竞争,从而改变了 BIFs 的形成机制。在这里,我们利用微生物培养方法证明,硝酸盐还原型铁(II)氧化剂在代谢过程中会比光铁嗜水菌更容易获得溶解的铁(II)。此外,实验和数值模拟都表明,硝酸盐还原型铁(II)氧化剂通过产生有毒的中间产物来抑制光铁锈作用。代表绿色硫细菌和紫色非硫细菌的四种不同的光铁锈营养体,尽管基因组具有一氧化氮解毒能力,但都容易受到这种毒性效应的影响。事实上,尽管一氧化氮解毒机制在某些光养菌群(如绿僵菌和蓝藻)的基因组水平上无处不在,但它们仍有可能受到影响。我们认为,铁锈质环境中硝酸盐还原铁(II)氧化过程中产生的活性氮物种可能抑制了古海洋中光铁细菌的活性,从而阻碍了它们在 BIFs 沉淀过程中发挥作用。
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引用次数: 0
Observed decrease in Deep Western Boundary Current transport in subpolar North Atlantic 观测到北大西洋副极地深层西边界洋流湍流减少
IF 15.7 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-10-04 DOI: 10.1038/s41561-024-01555-6
G. Koman, A. S. Bower, N. P. Holliday, H. H. Furey, Y. Fu, T. C. Biló
The lower limb of the Atlantic Meridional Overturning Circulation is an important feature of Earth’s climate system as it returns recently ventilated water to the deep ocean and is a major sink for anthropogenic carbon. The Deep Western Boundary Current—the primary component of the lower limb—flows southwards along the eastern flank of Greenland transporting dense water formed in the Nordic seas. Since 2014, the Deep Western Boundary Current has been continuously monitored at this location from a mooring array to observe the current’s velocity and hydrographic structure close to its source. Here we find that the Deep Western Boundary Current transport has decreased by 26% over the first six years of observations, due to (1) a thinning of the traditionally defined Deep Western Boundary Current layer (σθ > 27.8 kg m−3) from a known freshening signal propagating through the subpolar region (56%), and (2) weakening velocities (44%). Despite this decrease, the Atlantic Meridional Overturning Circulation has remained relatively steady over the same period. Ultimately, this difference is due to the methods used to define these two circulations. Finding such notably different trends for two seemingly dependent circulations raises the question of how to best define these transports. The amount of water transported southwards by the Deep Western Boundary Current shows a 26% decline since 2014 in mooring array monitoring data, despite the strength of the Atlantic Meridional Overturning Circulation remaining stable.
大西洋经向翻转环流下缘是地球气候系统的一个重要特征,因为它将最近排出的海水送回深海,是人为碳的一个主要汇。深西边界流--下缘的主要组成部分--沿格陵兰岛东侧向南流动,输送在北欧海域形成的高密度海水。自 2014 年以来,深西边界流一直在该地点通过系泊阵列进行持续监测,以观察其源头附近的流速和水文结构。在此,我们发现,在最初六年的观测中,深西边界流的传输量减少了 26%,原因是:(1) 传统定义的深西边界流层(σθ > 27.8 kg m-3)变薄,而这一变薄来自于通过副极地地区传播的已知清新信号(56%);(2) 速度减弱(44%)。尽管速度减弱,大西洋经向翻转环流在同期却保持相对稳定。归根结底,这种差异是由于界定这两种环流的方法不同造成的。在两个看似相互依赖的环流中发现如此明显不同的趋势,这就提出了一个问题,即如何最好地定义这些输送。
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引用次数: 0
Sustained greening of the Antarctic Peninsula observed from satellites 卫星观测到的南极半岛持续绿化现象
IF 15.7 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-10-04 DOI: 10.1038/s41561-024-01564-5
Thomas P. Roland, Oliver T. Bartlett, Dan J. Charman, Karen Anderson, Dominic A. Hodgson, Matthew J. Amesbury, Ilya Maclean, Peter T. Fretwell, Andrew Fleming
The Antarctic Peninsula has experienced considerable anthropogenic warming in recent decades. While cryospheric responses are well defined, the responses of moss-dominated terrestrial ecosystems have not been quantified. Analysis of Landsat archives (1986–2021) using a Google Earth Engine cloud-processing workflow suggest widespread greening across the Antarctic Peninsula. The area of likely vegetation cover increased from 0.863 km2 in 1986 to 11.947 km2 in 2021, with an accelerated rate of change in recent years (2016–2021: 0.424 km2 yr−1) relative to the study period (1986–2021: 0.317 km2 yr−1). This trend echoes a wider pattern of greening in cold-climate ecosystems in response to recent warming, suggesting future widespread changes in the Antarctic Peninsula’s terrestrial ecosystems and their long-term functioning. Analyses of satellite observations from 1986 to 2021 suggest that the Antarctic Peninsula is greening at an accelerated rate.
近几十年来,南极半岛经历了相当程度的人为变暖。虽然低温层的反应已经明确,但以苔藓为主的陆地生态系统的反应尚未量化。利用谷歌地球引擎云处理工作流程对大地遥感卫星档案(1986-2021 年)进行的分析表明,整个南极半岛大面积绿化。可能的植被覆盖面积从 1986 年的 0.863 平方公里增加到 2021 年的 11.947 平方公里,与研究期间(1986-2021 年:0.317 平方公里/年)相比,近年来的变化速度加快(2016-2021 年:0.424 平方公里/年)。这一趋势与近期气候变暖导致的寒冷气候生态系统绿化的更广泛模式相呼应,表明南极半岛陆地生态系统及其长期功能将在未来发生广泛变化。
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引用次数: 0
Indo-Pacific regional extremes aggravated by changes in tropical weather patterns 热带天气模式的变化加剧了印度洋-太平洋地区的极端天气现象
IF 15.7 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY Pub Date : 2024-10-04 DOI: 10.1038/s41561-024-01537-8
Chenyu Dong, Robin Noyelle, Gabriele Messori, Adriano Gualandi, Lucas Fery, Pascal Yiou, Mathieu Vrac, Fabio D’Andrea, Suzana J. Camargo, Erika Coppola, Gianpaolo Balsamo, Chen Chen, Davide Faranda, Gianmarco Mengaldo
The Pacific Walker circulation and the closely connected El Niño/Southern Oscillation influence the climate and weather of the tropical Indo-Pacific region. They specifically exert a strong control on the regional occurrence of weather extremes, such as heatwaves, heavy precipitation and prolonged dry spells, which are becoming increasingly frequent and severe. However, climate models struggle to accurately simulate large-scale circulation changes in the tropics and thus their consequences for regional weather and future climate. Here we use high-resolution ERA5 reanalysis data from 1940 to 2022 to study the occurrence trends of weather patterns in the tropical Indo-Pacific region. We find that new large-scale synoptic situations that were rarely present before the 1990s have emerged in the Indo-Pacific, while some others that were prominent have disappeared. Those new synoptic situations are associated with an unusual proportion of heatwaves and extreme precipitation in the region. These weather patterns are physically consistent with a trend towards a stronger Pacific Walker circulation, wetter and warmer conditions in Southeast Asia and drier conditions in the equatorial Pacific. These changes cannot be fully explained by El Niño/Southern Oscillation and other relevant modes of interannual variability, and other factors such as global warming, aerosol forcing, external forcing mechanisms and nonlinear mode interactions may be contributing. Emerging weather patterns over recent decades are exacerbating extreme precipitation and heatwaves in the tropical Indo-Pacific region, according to a computation of trends in reanalysis data.
太平洋沃克环流和密切相关的厄尔尼诺/南方涛动影响着热带印度洋-太平洋地区的气候和天气。它们对该地区极端天气的出现,如热浪、强降水和长期干旱等,具有很强的控制作用,而这些极端天气正变得越来越频繁和严重。然而,气候模式很难准确模拟热带地区的大尺度环流变化及其对区域天气和未来气候的影响。在此,我们利用 1940 年至 2022 年的高分辨率ERA5 再分析数据研究了热带印度洋-太平洋地区天气模式的发生趋势。我们发现,印度洋-太平洋地区出现了 20 世纪 90 年代以前很少出现的新的大尺度天气形势,而其他一些突出的天气形势则消失了。这些新的天气形势与该地区异常比例的热浪和极端降水有关。这些天气模式在物理上与太平洋漫步者环流增强的趋势、东南亚更湿润和更温暖的条件以及赤道太平洋更干燥的条件相一致。这些变化不能完全用厄尔尼诺/南方涛动和其他相关的年际变化模式来解释,全球变暖、气溶胶强迫、外部强迫机制和非线性模式相互作用等其他因素也可能起作用。
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引用次数: 0
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Nature Geoscience
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