重点资讯：

• 联合国海洋大会 - 2022年6月27日至7月1日，里斯本;
• Chuy 地层（更新世晚期）的海洋沉积物与Laguna de Rocha地区（乌拉圭）的均衡调整;
• 恢复力与沿海治理:稳定与转型之间的知识与导引;
• 基于Sentinel-2时间序列图像的生物物理参数对中国沿海养殖塘进行精确测绘.

Highlight:

• UN Ocean Conference, Lisbon, 27 June - 1 July 2022;
• Marine deposits of the Chuy Formation (Late Pleistocene) and isostatic readjustments in the area of Laguna de Rocha (Uruguay);
• Resilience and coastal governance: knowledge and navigation between stability and transformation;
• Accurate mapping of Chinese coastal aquaculture ponds using biophysical parameters based on Sentinel-2 time series images.

联合国海洋大会 - 2022年6月27日至7月1日，里斯本

UN Ocean Conference, Lisbon, 27 June - 1 July 2022

During the last week of June 2022, in Lisbon, Portugal, the Intergovernmental Ocean Commission of the UNESCO invited all the ocean academics, professionals and the civil society to gather around one overarching theme: “Scaling up ocean action based on science and innovation for the implementation of Goal 14: stocktaking, partnerships and solutions”.

In that scope, Future Earth gathered a delegation composed of representatives of the Global Research Networks (Future Earth Coasts, IMBeR, the Ocean KAN, SOLAS, the ocean task force of Earth System Governance and the cryosphere work package of PAGES) and the Early Career Ocean Professionals (ECOP) to present an official side event and to participate in other events and official discussions.

The Future Earth side event took place at the French Institute in Lisbon on Thursday 30 June. During the first 45 minutes, we presented the 4 Future Earth Global Research Networks focusing on ocean science (Future Earth Coasts, IMBeR, the Ocean KAN and SOLAS) and the 2 ones with an ocean component (ESG and PAGES), followed by a presentation by the Early Career Ocean Professionals (ECOP) which was initiated under the hospices of the Ocean KAN in 2019.

The second part of the event consisted in a discussion with the audience in which we tried to answer this question “Why is Future Earth well positioned to help achieve SDG 14?”

With approximately 60 on site participants the side event led to interesting discussions about fostering collaboration between research groups and institutions, including new partners in the Future Earth’s projects and increasing transdisciplinarity to tackle the challenges ahead of us.

2022年6月最后一周，在葡萄牙里斯本，联合国教科文组织政府间海洋委员会邀请所有海洋学者、专业人员和民间社会围绕一个总体主题聚首:“基于科学和创新，扩大海洋行动，以落实目标14:评估、伙伴关系和解决方案”。

在此范围内，未来地球（Future Earth）召集了全球研究网络 (FEC、IMBeR、the Ocean KAN、SOLAS、地球系统治理海洋工作队、PAGES的冰冻圈工作坊)和涉海领域的早期从业人员(ECOP)的代表，举办了一个官方边会，并参与其他活动和官方讨论。

 “未来地球”活动于6月30日星期四在里斯本的法国研究所举行。在前45分钟里，我们介绍了聚焦于海洋科学的4个未来地球全球研究网络 (FEC、IMBeR、the Ocean KAN、SOLAS) 和2个与海洋相关的网络 (ESG和PAGES)。随后，涉海领域的早期从业人员(ECOP)进行了介绍，该组织于2019年在the Ocean KAN下发起。

活动的第二部分是与观众讨论，我们交流了“为什么未来地球（Future Earth）能够帮助实现可持续发展目标14?”这一问题。

本次活动约有60名现场参与者，进行了包括未来地球(Future Earth)项目的新伙伴、增加跨学科性以应对当前挑战等促进研究小组和机构之间合作的有趣讨论。

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Castiglioni, E., Gaucher, C., Perillo, G.M.E., Sial, A.N.

The Chuy Formation is characterized by up to 135 m of an alternation of green pelites and fine to coarse sandstones with sparse invertebrate fossils. The marine deposits are interbedded with continental, loessic deposits of the Libertad Formation and overlain by the Dolores Formation, made up of mudstones with calcareous concretions.

The results of the radiocarbon dating showed calibrated ages of 13.9±0.2, 41.5±1.9 and 50±3 ka BP on bioclasts of marine fossils at an elevation (above sea level, asl) of -2.8, -6.13 and -8 m respectively. Such ages and elevations are in disagreement with the sea-level evolution inferred for the Late Pleistocene. Two possible explanations are: (a) the ages represent minimum ages and deposition took place during the last interglacial at 115-130 ka (Marine Isotope Stage MIS 5e), or (b) they represent depositional ages but the area experimented large isostatic readjustments during and after the last glaciation. Several lines of evidence suggest a Late Pleistocene age for the upper Chuy Formation, including the d18O curve obtained from invertebrate shells, which shows large secular variations consistent with MIS 1 to 7.

The proposed scenario envisages significant subsidence between 50-20 ka due to the far-field effects of glacial load in the Andes/Patagonia. At 20 ka the eustatic regression outpaced subsidence, leading to continentalization of the Laguna de Rocha area. Marine conditions returned at 15 ka and into the Holocene, except for continental deposits (Dolores Formation) at ca. 11-10 ka (Younger Dryas). An uplift of 115 m took place between 15 and 9 ka in the area, which is interpreted as post-glacial rebound. In the Holocene, moderate subsidence was further recorded. A regional trend is observed, with uplift of marine deposits increasing towards the W-SW, which is consistent with an explanation as post-glacial isostatic rebound.

Chuy地层是由一套135m厚交替的绿色泥岩和细-粗砂岩所组成，无脊椎动物化石零星出现。海洋沉积物与Libertad地层的大陆黄土沉积物交替出现，其上覆盖着Dolores地层的富含钙结核的泥岩。

海洋生物化石的放射性碳测年的结果显示，海拔-2.8、-6.13和-8 m处的年代分别为13.9±0.2、41.5±1.9和50±3 ka BP。这明显和晚更新世海平面波动并不一致。两种可能的解释：（a）所测年龄均为最小年龄，最后一个间冰期115-103ka（深海氧同位素5e）有过沉积，或者（b）所测年龄为埋藏年龄，但是在末次冰期间或之后，该区域经历过大型均衡调整。所有的证据表明Chuy地层的上部为晚更新世时期形成，其内无脊椎动物壳体化石的18O同位素曲线具有与MIS 1-7一致的长期变化。

可能的情景是，由于Andes/Patagonia冰川负荷的远场效应，该区域50-20ka间发生了显著沉降。在20ka时，海退规模超过了沉降，导致了Laguna de Rocha 地区的成陆。15ka到全新世期间，海洋环境重新占据了该区域，除了11-10ka（YD事件）期间形成的暂短陆相环境以外。15-9ka，由于冰后期的地面回弹，该区域发生了115m的抬升。全新世期间，该区发生了中等幅度的沉降。海洋沉积物厚度呈现向西-西南方向增加，这与冰后期地面回弹的方向较为一致。

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Rölfer, L., Celliers, L.,  Abson, D. J.

Several intergovernmental agreements highlight the need for resilience in the face of environmental and societal challenges. Coastal systems are particularly complex and susceptible to global climate change, and building human resilience to future changes is of high priority. While the concept of resilience has historically been associated with stability to perturbations, the notion of transformation within the social-ecological resilience (SER) approach has recently gained importance in ecosystem management. In order to operationalize resilience in the context of coastal governance in a changing climate, a better understanding of the concept is required. This paper provides an overview of different approaches to resilience, including stability and transformation, in order to understand resilience as a concept in a coastal governance context. Subsequently, we propose five steps and three types of knowledge (system, target, transformative) with which to embed SER in coastal governance. In addition, we consider scale and system boundaries; identify (un)desirable system characteristics and the role of normative goals and common visions in resilience management. Finally, we highlight the central role that local actors and information services play in fostering a two-way exchange between science and society and tailoring solutions for establishing or enhancing SER to the needs of local actors. We conclude that the navigation between stability and transformation within the concept of resilience is central to finding sustainable future pathways in the face of climate change.

部分政府间协议强调了应对环境和社会挑战的复原力的必要性。复杂的沿海系统易受全球气候变化的影响，因此需要优先建立人类对未来变化的适应能力。虽然恢复力的概念在历史上一直与扰动的稳定性联系在一起，但社会-生态恢复力(SER)方法中的转变概念近来在生态系统管理中变得重要。为了在气候变化的沿海治理背景下实现恢复力，需要更好地理解恢复力。本文概述了恢复力的不同方法，包括稳定和转型，以便在沿海治理的背景下理解恢复力。随后，研究提出了五个步骤和三种类型的知识(系统、目标、变革性)，以将SER嵌入沿海治理。此外，研究考虑了规模和系统边界；识别(不)可取的系统特征、规范性目标的作用、恢复力管理的共同愿景。最后，研究强调了当地行动者和信息服务在促进科学和社会之间的双向交流以及根据当地行动者的需求定制建立或加强SER的解决方案方面发挥的核心作用。研究得出结论，在恢复力的概念中，在稳定和转型之间寻求平衡，对于在气候变化面前找到可持续的未来路径至关重要。

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Ya Peng, Dhritiraj Sengupta, Yuanqiang Duan, Chunpeng Chen, Bo Tian

Aquaculture plays a crucial role in the global food security and nutrition supply, where China accounts for the largest market share. Although there are some studies that focus on large-scale extraction of coastal aquaculture ponds from satellite images, they have often variable accuracies and encounter misclassification due to the similar geometric characteristics of various vivid water bodies. This paper proposes an efficient and novel method that integrates the spatial characteristics and three biophysical parameters (Chlorophyll-a, Trophic State Index, and Floating Algae Index) to map coastal aquaculture ponds at a national scale. These parameters are derived from bio-optical models based on the Google Earth Engine (GEE) cloud computing platform and time series of high-resolution Sentinel-2 images. Our proposed method effectively addresses the misclassification issue between the aquaculture ponds and rivers, lakes, reservoirs, and salt pans and achieves an overall accuracy of 91 % and a Kappa coefficient of 0.83 in the Chinese coastal zone. Our results indicate that the total area of Chinese coastal aquaculture ponds was 1,039,214 ha in 2019, mainly distributed in the Shandong and Guangdong provinces. The highest aquaculture intensity occurs within the 1 km coastal buffer zone, accounting for 22.4 % of the total area. Furthermore, more than half of the Chinese coastal aquaculture ponds are concentrated in the 0–5 km buffer zone. Our method is of general applicability and thus is suitable for large-scale aquaculture ponds mapping projects. Moreover, the biophysical parameters we employ can be considered as new indicators for the classification of various water bodies even with different aquaculture species.

水产养殖在全球粮食安全和营养供应中有着至关重要的作用，中国占有这方面的最大市场份额。虽然部分研究侧重于从卫星图像中大规模提取沿海水产养殖塘，但由于各种具体水体的几何特征相似，它们往往精度不高，并出现错误分类。本文提出了一种高效新颖的方法，整合了空间特征和三个生物物理参数（叶绿素-a、营养状态指数、浮藻指数），在全国范围内绘制沿海水产养殖塘的地图。这些参数来自基于Google地球引擎（GEE）云计算平台的生物光学模型和高分辨率Sentinel-2图像的时间序列。该方法有效解决了中国沿海地区水产养殖塘与河流、湖泊、水库、盐田之间的错误分类问题，总体准确率为91%，kappa系数为0.83。结果表明，2019年中国沿海水产养殖塘总面积为1，039，214公顷，主要分布在山东省和广东省。水产养殖强度最高的是1公里沿海缓冲区，占总面积的22.4%。此外，中国一半以上的沿海水产养殖塘集中在0-5公里的缓冲区。本研究使用的方法具有普遍适用性，适用于大型水产养殖塘测绘项目。此外，即使有不同的水产养殖种类，本研究使用的生物物理参数可以被视为各种水体分类的新指标。

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AM Foley, S Moncada, M Mycoo, P Nunn, V Tandrayen‐Ragoobur, ...Wiley Interdisciplinary Reviews: Climate Change 13 (3), e769

Peng, Y., Sengupta, D., Duan, Y., Chen, C., & Tian, B. (2022). Accurate mapping of Chinese coastal aquaculture ponds using biophysical parameters based on Sentinel-2 time series images. Marine Pollution Bulletin, 181, 113901.

Rölfer, L., Celliers, L., & Abson, D. J. (2022). Resilience and coastal governance: knowledge and navigation between stability and transformation. Ecology and Society, 27(2), 40.

Brendel, A.S., Ferrelli, F., Piccolo, M.C., Perillo, G.M.E., 2022. Procesamiento de datos satelitales ópticos y de radar para la detección de cambios morfométricos: el caso de la desembocadura del río Sauce Grande (Argentina). Caminhos de Geografia 23:85-94. DOI 10.14393/RCG238658189. ISSN 1678-6343

Castiglioni, E., Gaucher, C., Perillo, G.M.E., Sial, A.N., 2022. Marine deposits of the Chuy Formation (Late Pleistocene) and isostatic readjustments in the area of Laguna de Rocha (Uruguay). Agrociencias 26:e799. doi:10.31285/AGRO.26.799.

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