Disturbance regimes at the interface of geomorphology and ecology

Geomorphological processes are an integral part of ecosystem functioning and ecosystem functioning affects geomorphological processes. Increasingly widespread acknowledgement of this simple idea is manifest in a vigorous research community engaged with questions that address the two‐way interaction between biota and geomorphology, at a range of scales and in a variety of terrestrial and aquatic environments. Geomorphological disturbances are a core element of biogeomorphological interest, and although the disciplines of geomorphology and ecology have each developed languages and theories that help to explore, model and understand disturbance events, little attempt has been made to draw together these approaches. Following a brief review of these issues, we introduce thirteen papers that investigate the interactions and feedbacks between geomorphological disturbance regimes and ecosystem functions. These papers reveal the singularity of wildfire impacts, the importance of landsliding for carbon budgeting and of vegetation accumulation for landsliding, the zoogeomorphic role of iconic and ‘Cinderella’ animals in fluvial geomorphology, biophysical interactions in aeolian, fluvial and torrential environments and the utility of living ecosystems as archives of geomorphic events. Most of these papers were first presented in a conference session at the European Geoscience Union General Assembly in 2010 and several others are from recent volumes of Earth Surface Processes and Landforms. Copyright © 2012 John Wiley & Sons, Ltd.     

The 1st International Workshop on Waves,Storm Surges and Coastal Hazards incorporating the 15th International Workshop on Wave Hindcasting and Forecasting

Following the 1st International Workshop on Waves, Storm Surges and Coastal Hazards, which incorporated the 15th session of the long-standing the International Workshop on Wave Hindcasting and Forecasting, in September 2017 in Liverpool, United Kingdom, a topical collection has appeared in recent issues of Ocean Dynamics. Here, we give a brief overview of the 15 papers published in this topical collection as well as an overview of the widening scope of the conference in recent years. The continuing trend towards closer integration between the wave and ocean modeling communities is reflected in this workshop, culminating in the renaming of the workshop, while maintaining the connection with the three-decade long history of the wave workshop. This is also seen in this topical collection, with several papers exploring wave-generated storm surge, wave-tide contributions to coastal flooding, forcing a global ocean model with fluxes from a wave model and interaction between surface waves and sea ice.

     

Special issue: Marine and river bedforms dynamics,MARID VI

Marine and river bedforms are rhythmic features driven by unidirectional or reversing currents and waves. They are ubiquitous on the floors of rivers, estuaries, coastal and marine settings. Despite a considerable history of dedicated studies, many aspects of their origin, development and dynamics are still the subject of scientific debate in various disciplines. The MARID conferences series hosts experts from geosciences, physics, engineering and other disciplines to provide a platform for the interdisciplinary exchange of fundamental and applied knowledge of marine and river dune dynamics. MARID VI took place in April 2019 in Bremen, Germany. Related scientific contributions are presented in this special issue of Earth Surface Processes and Landforms. An overview of the conference series and the specifics of MARID VI, as well as considerations in the context of equity, diversity and inclusion, are given. This introduction highlights the progress made with the papers published in the special issue.     

《防灾减灾工程学报》稿源多元化实践与思考

从办刊宗旨的演变过程、发表论文专业结构调整、对自由投稿的发掘引导、专刊约稿的组织出版、学术会议的推动促进等方面,探讨了《防灾减灾工程学报》在拓展稿源渠道方面的实践,并提出了改进措施。     

九寨沟7.0级、精河6.6级地震应急视频会议系统应用及问题探讨

总结了九寨沟7.0级、精河6.6级地震应急不同时期的指挥部视频会议应用特点,分析了出现的画面声音卡顿、控制失步等问题。结合测试实验结果,探讨了影响视频会议质量的原因。为进一步加强震后应急视频会议保障服务能力,提出了建立视频会议服务质量标准、规范视频会议系统建设标准和丰富震后通讯手段等建议。     

The Barrier Model and Strong Ground Motion

— An overview of the most important developments in Engineering (or Strong Motion) Seismology is presented alongside Professor Keiiti Aki's contributions, who is one of the founders of this field. The mechanics of earthquake rupture are discussed with due emphasis on the various physical phenomena. The presentation is made in a tutorial manner, borrowing freely from Keiiti Aki's papers, and endeavoring to emulate his unique style of clarity, simplicity and synthetic ability.     

The 14th international workshop on wave hindcasting and forecasting and the 5th coastal hazards symposium

Following the 14th International Workshop on Wave Hindcasting and Forecasting and 5th Coastal Hazards Symposium in November 2014 in Key West, Florida, a topical collection has appeared in recent issues of Ocean Dynamics. Here, we give a brief overview of the 16 papers published in this topical collection as well as an overview of the widening scope of the conference in recent years. A general trend in the field has been towards closer integration between the wave and ocean modelling communities. This is also seen in this topical collection, with several papers exploring the interaction between surface waves and mixed layer dynamics and sea ice.     

第17届世界地震工程大会岩土地震工程相关领域研究进展综述

第17届世界地震工程大会于2021年9月27日至10月2日在日本仙台召开.考虑新冠疫情,此次大会的举办采取线上与线下结合的方式,笔者线上参加了会议.论文简要介绍此次大会的概况,通过分析大会相关交流报告和论文内容,对岩土地震工程研究领域的砂土液化灾害、地震作用下斜坡破坏、土G结构相互作用、地面破坏及场地地震安全、地面运动5个分会专题的研究进展进行综述.以期与国内同行分享本次大会在岩土地震工程及其我国有重大需求相关领域的最新成果和发展趋势.     

From the editors:special issue announcement

We wish to sincerely thank Professor Li Jianzhong of Tongji University and Professor Ian Buckle of the University of Nevada at Reno,for acting as guest editors of our first special issue on the "Seismic Design and Retrofit of Highway     

Design of controlled elastic and inelastic structures

One of the founders of structural control theory and its application in civil engineering,Professor Emeritus Tsu T.Soong,envisioned the development of the integral design of structures protected by active control devices.Most of his disciples and colleagues continuously attempted to develop procedures to achieve such integral control.In his recent papers published jointly with some of the authors of this paper,Professor Soong developed design procedures for the entire structure using a design-redesign proce...     

台湾花莲地震预测与"可公度"方法的引伸性讨论

“可公度”方法是我们在1999年9月21日台湾7．6级大震预报中引用的主要方法，为此本文结合其具体分析，和针对“可公度”方法所隐含的物理意义，尤其是翁文波先生对“可公度周期性扩张”的贡献，结合实例进行了隐伸性的讨论。其中涉及“可公度”方法由提丢斯和波特“平均运动”的天体运行，和翁文波以“信息确定性”发展为“周期性扩张”的特殊性信息的周期性，并可用于自然灾害的预测；及其“信息保真性”不同于数量的意义和作法等所涉及的观念的变革性。     

Introduction to “Tsunamis in the World Ocean: Past,Present, and Future. Volume II”

Fifteen papers are included in Volume 2 of a PAGEOPH topical issue Tsunamis in the World Ocean: Past, Present, and Future. These papers are briefly introduced. They are grouped into three categories: reports and studies of recent tsunamis, studies on tsunami statistics and application to tsunami warning, and modeling studies of tsunami runup and inundation. Most of the papers were presented at the 24th International Tsunami Symposium held 14–16 July 2009 in Novosibirsk, Russia, and reflect the current state of tsunami science.     

中国地震学会地震工程专业委员会成立

[本刊讯]中国地震学会和国家地震局于1981年3月23日至27日在南京联合召开地震工程专业委员会成立大会暨地震小区划专题报告会.参加会议的有来自全国各地的科研、工程和教学单位的地震工程科学工作者80余人.这次会议共收到论文50余篇,内容涉及到地震烈度区划、烈度异常、震害预测、场地与土质条件的影响、砂土液化以及地面运动分析与实验研究等诸方面.大会选举了刘恢先为地震工程专业委员会主任委员.     

Distance,time and scale in soil erosion processes

This commentary brings together, as a virtual Special Issue, a number of recent papers in Earth Surface Processes and Landforms that are all related to issues of scale in soil erosion. Empirical concepts that were developed in the 1940s are now in need of re‐thinking, and papers are increasingly exploring, through modelling and measurement, appropriate ways to recognize the mechanisms that connect processes across time and space scales. Issues include a more nuanced approach to selective transportation, responses to variability in surface and sub‐surface conditions and the need to analyse measurements in ways that can be transferred between sites and storms. Copyright © 2010 John Wiley & Sons, Ltd.     

Fisheries in the Future—the Vancouver Conference

Fisheries and their future received a thorough examination in Vancouver during February when the Food and Agriculture Organization of the United Nations held its first technical conference on fishery management and development in seventeen years. Among the fifty papers presented at the ten day meeting was an assessment of current and future management practices and an examination of the potential of krill harvesting and aquaculture.     

亚洲地震委员会第四次学术大会于2002年11月在尼泊尔加德满都举行

亚洲地震委员会（ASC）第四次学术大会暨地震学、地震危险性评估和地震风险管理学术讨论会于2002年11月24－26日在尼泊尔加德满都举行。来自亚洲、大洋洲、美洲和欧洲的22个国家的近200名专家出席了会议，会议共收到约110篇研究报告。文章介绍了大会、学术交流和ASC工作会议等情况。     

On a method of computing the gravitational fields of inhomogeneous bodies

Summary A solution of the direct gravity problem for a finite body with variable density is given. The method is based on Green's formula and is applicable when a particular solution of Poisson's equation is known. The attraction due to the body is expressed by integrals over its surface The exact solution of the direct gravity problem, as known from the theory of two-dimensional fields [1–3], is closely connected with the problem of the analytic continuation of the exterior field of the attracting mass system into its interior. In the first place, this is a problem of determining the singularities of the exterior field, their distribution within the system and their nature. This approach to the solution of the direct problem is also meaningful from the point of view of determining the characteristics of the attracting system and, therefore, also of solving the inverse problem. In the case of two-dimensional fields the methods of analytical continuation were widely developed in a series of well-known papers by V. N. Strakhov, and they are mainly based on the methods of the theory of the functions of the complex variable. These methods were also successfully applied by Tsirulskii and Golizdra [1, 2] in treating the homogeneous and inhomogeneous, two-dimensional direct problem by means of Cauchy's integrals. However, as regards three-dimensional fields a number of fundamental problems has not been solved in this respect.Dedicated to 90th Birthday of Professor Frantiek Fiala     

Planetary dune analogues: a special issue on integrating models,remote sensing and field data

This article reports on the Special Issue of Earth Surface Processes and Landforms dedicated to planetary dune analogues and the advances that have been made through the integration of remote sensing and terrestrial field data to better model and understand aeolian systems. The 11 articles presented demonstrate a spectrum of analytical techniques that are employed to investigate ripples, dunes, draa and ergs across a variety of spatial and temporal scales. Nine of the papers involve innovative research about aeolian bedforms and processes, while the final two papers are examples of how vast quantities of data may be organized and scrutinized using a GIScience approach. Based on these 11 papers and the many abstracts archived in a series of three planetary dunes workshops at the Lunar Planetary Institute ( http://www.lpi.usra.edu/publications/abstracts.shtml ; LPI Contributions 1403, 1552, and 1673) it is evident that there exists diverse and complementary approaches to the comparative study of landforms and processes for terrestrial and extra‐terrestrial aeolian landscapes that is driven by a vibrant international community of scientists and educators that engage in the cross‐fertilization of ideas. Copyright © 2014 John Wiley & Sons, Ltd.     

The crustal fluid evolution and the causes of earthquakes (III)

This paper is the third one of a series of three papers on the fluid evolution of the crust-upper mantle and the causes of earthquakes. Based on the last two papers, a model of the crustal resistivity structure and the deep-seated fluid evolution is presented, and also a seismogeny theory is set up, which is called the potential-kinetic energy transformation model. In this model, the crustal deep-seated fluid evolution is considered to take the most important effect on the seismogenic process. Taking the Tangshan M7.8 earthquake of 1976 as an example, the earthquakes occurred in a pull-apart rifting basin are analyzed, and finally the crust outgassing in the seismogenic processes is discussed, referring to the here-presented theory of seismogeny. This paper is supported by the Eight Five-Year Target of the State Seismological Bureau, China.     

Special Issue: Gravel Bed Rivers 8

Theoretical, modeling, experimental and monitoring of sediment transport in gravel bed rivers are introduced. The key findings of 27 papers on this theme were published in Earth Surface Processes and Landforms during the past year. Among these, 18 papers were published by attendants of the 8th Gravel Bed River Workshop held in Japan in 2015. This Commentary introduces the main themes associated with these papers including innovations in sediment transport conceptualization and modeling and monitoring, and also three wider themes: the importance of sediment supply; relationships between gravel bed river science and restoration; and the growing recognition of the critical role played by wood in gravel bed rivers. Copyright © 2018 John Wiley & Sons, Ltd.