当前期刊: Reviews of Geophysics Go to current issue    加入关注   
显示样式:        排序: IF: - GO 导出
我的关注
我的收藏
您暂时未登录!
登录
  • Exposure and possible risks of engineered nanomaterials in the environment – current knowledge and directions for the future
    Rev. Geophys. (IF 21.449) Pub Date : 2020-10-13
    Henning Wigger; Ralf Kägi; Mark Wiesner; Bernd Nowack

    The consequences that engineered nanomaterials (ENM) may cause in the environment have been under investigation for more than 15 years. Hundreds of Millions Euro/$ have been invested into safety issues of ENMs and much progress has been made in the understanding of their fate and effects in the environment. After an initial phase of “observing the effects”, research has shifted towards elucidating

    更新日期:2020-10-14
  • Impact Forecasting to Support Emergency Management of Natural Hazards
    Rev. Geophys. (IF 21.449) Pub Date : 2020-08-24
    Bruno Merz; Christian Kuhlicke; Michael Kunz; Massimiliano Pittore; Andrey Babeyko; David N. Bresch; Daniela I. V. Domeisen; Frauke Feser; Inga Koszalka; Heidi Kreibich; Florian Pantillon; Stefano Parolai; Joaquim G. Pinto; Heinz Jürgen Punge; Eleonora Rivalta; Kai Schröter; Karen Strehlow; Ralf Weisse; Andreas Wurpts

    Forecasting and early warning systems are important investments to protect lives, properties, and livelihood. While early warning systems are frequently used to predict the magnitude, location, and timing of potentially damaging events, these systems rarely provide impact estimates, such as the expected amount and distribution of physical damage, human consequences, disruption of services, or financial

    更新日期:2020-10-07
  • Faulting processes unveiled by magnetic properties of fault rocks
    Rev. Geophys. (IF 21.449) Pub Date : 2020-10-03
    Tao Yang; Yu‐Min Chou; Eric C. Ferré; Mark J. Dekkers; Jianye Chen; En‐Chao Yeh; Wataru Tanikawa

    As iron‐bearing minerals – ferrimagnetic minerals in particular – are sensitive to stress, temperature and presence of fluids in fault zones, their magnetic properties provide valuable insights into physical and chemical processes affecting fault rocks. Here, we review the advances made in magnetic studies of fault rocks in the past three decades. We provide a synthesis of the mechanisms that account

    更新日期:2020-10-04
  • An Assessment of Earth's Climate Sensitivity Using Multiple Lines of Evidence
    Rev. Geophys. (IF 21.449) Pub Date : 2020-07-22
    S. C. Sherwood; M. J. Webb; J. D. Annan; K. C. Armour; P. M. Forster; J. C. Hargreaves; G. Hegerl; S. A. Klein; K. D. Marvel; E. J. Rohling; M. Watanabe; T. Andrews; P. Braconnot; C. S. Bretherton; G. L. Foster; Z. Hausfather; A. S. von der Heydt; R. Knutti; T. Mauritsen; J. R. Norris; C. Proistosescu; M. Rugenstein; G. A. Schmidt; K. B. Tokarska; M. D. Zelinka

    We assess evidence relevant to Earth's equilibrium climate sensitivity per doubling of atmospheric CO2, characterized by an effective sensitivity S. This evidence includes feedback process understanding, the historical climate record, and the paleoclimate record. An S value lower than 2 K is difficult to reconcile with any of the three lines of evidence. The amount of cooling during the Last Glacial

    更新日期:2020-09-25
  • Issue Information
    Rev. Geophys. (IF 21.449) Pub Date : 2020-09-24

    No abstract is available for this article.

    更新日期:2020-09-24
  • Updated Global Warming Potentials and Radiative Efficiencies of Halocarbons and Other Weak Atmospheric Absorbers
    Rev. Geophys. (IF 21.449) Pub Date : 2020-09-07
    Ø. Hodnebrog, B. Aamaas, J. S. Fuglestvedt, G. Marston, G. Myhre, C. J. Nielsen, M. Sandstad, K. P. Shine, T. J. Wallington

    Human activity has led to increased atmospheric concentrations of many gases, including halocarbons, and may lead to emissions of many more gases. Many of these gases are, on a per molecule basis, powerful greenhouse gases, although at present‐day concentrations their climate effect is in the so‐called weak limit (i.e., their effect scales linearly with concentration). We published a comprehensive

    更新日期:2020-09-07
  • The sensitivity of the Antarctic Ice Sheet to a changing climate: Past, present and future
    Rev. Geophys. (IF 21.449) Pub Date : 2020-08-15
    T. L. Noble; E. J. Rohling; A. R. A. Aitken; H. C. Bostock; Z. Chase; N. Gomez; L. M. Jong; M. A. King; A. N. Mackintosh; F. S. McCormack; R. M. McKay; L. Menviel; S. J. Phipps; M. E. Weber; C. J. Fogwill; B. Gayen; N. R. Golledge; D. E. Gwyther; A. Mc C. Hogg; Y. M. Martos; B. Pena‐Molino; J. Roberts; T. van de Flierdt; T. Williams

    The Antarctic Ice Sheet (AIS) is out of equilibrium with the current anthropogenic‐enhanced climate forcing. Paleo‐environmental records and ice sheet models reveal that the AIS has been tightly coupled to the climate system during the past, and indicate the potential for accelerated and sustained Antarctic ice mass loss into the future. Modern observations by contrast suggest that the AIS has only

    更新日期:2020-08-16
  • A Review on Multiphase Underwater Jets and Plumes: Droplets, Hydrodynamics, and Chemistry
    Rev. Geophys. (IF 21.449) Pub Date : 2020-08-09
    Michel C. Boufadel, Scott Socolofsky, Joseph Katz, Di Yang, Cosan Daskiran, William Dewar

    Jets and plumes have been the focus of quantitative investigations since the mid‐1950s. These investigations intensified following the Deepwater Horizon oil spill, in which thousands of tons of oil and natural gas were released into the Gulf of Mexico. This review focuses on plume dynamics that apply to both single‐phase and multiphase liquid‐in‐liquid and liquid plus gas into liquid plumes, including

    更新日期:2020-08-09
  • Ocean Alkalinity, Buffering and Biogeochemical Processes.
    Rev. Geophys. (IF 21.449) Pub Date : 2020-07-29
    Jack J Middelburg,Karline Soetaert,Mathilde Hagens

    Alkalinity, the excess of proton acceptors over donors, plays a major role in ocean chemistry, in buffering and in calcium carbonate precipitation and dissolution. Understanding alkalinity dynamics is pivotal to quantify ocean carbon dioxide uptake during times of global change. Here we review ocean alkalinity and its role in ocean buffering as well as the biogeochemical processes governing alkalinity

    更新日期:2020-07-29
  • Hydraulic Fracturing‐Induced Seismicity
    Rev. Geophys. (IF 21.449) Pub Date : 2020-07-24
    Ryan Schultz, Robert J. Skoumal, Michael R. Brudzinski, Dave Eaton, Brian Baptie, William Ellsworth

    Hydraulic fracturing (HF) is a technique that is used for extracting petroleum resources from impermeable host rocks. In this process, fluid injected under high pressure causes fractures to propagate. This technique has been transformative for the hydrocarbon industry, unlocking otherwise stranded resources; however, environmental concerns make HF controversial. One concern is HF‐induced seismicity

    更新日期:2020-07-24
  • Four Theories of the Madden-Julian Oscillation.
    Rev. Geophys. (IF 21.449) Pub Date : 2020-07-21
    C Zhang,Á F Adames,B Khouider,B Wang,D Yang

    Studies of the Madden‐Julian Oscillation (MJO) have progressed considerably during the past decades in observations, numerical modeling, and theoretical understanding. Many theoretical attempts have been made to identify the most essential processes responsible for the existence of the MJO. Criteria are proposed to separate a hypothesis from a theory (based on the first principles with quantitative

    更新日期:2020-07-21
  • Understanding of Contemporary Regional Sea-Level Change and the Implications for the Future.
    Rev. Geophys. (IF 21.449) Pub Date : 2020-07-20
    Benjamin D Hamlington,Alex S Gardner,Erik Ivins,Jan T M Lenaerts,J T Reager,David S Trossman,Edward D Zaron,Surendra Adhikari,Anthony Arendt,Andy Aschwanden,Brian D Beckley,David P S Bekaert,Geoffrey Blewitt,Lambert Caron,Don P Chambers,Hrishikesh A Chandanpurkar,Knut Christianson,Beata Csatho,Richard I Cullather,Robert M DeConto,John T Fasullo,Thomas Frederikse,Jeffrey T Freymueller,Daniel M Gilford

    Global sea level provides an important indicator of the state of the warming climate, but changes in regional sea level are most relevant for coastal communities around the world. With improvements to the sea‐level observing system, the knowledge of regional sea‐level change has advanced dramatically in recent years. Satellite measurements coupled with in situ observations have allowed for comprehensive

    更新日期:2020-07-20
  • Issue Information
    Rev. Geophys. (IF 21.449) Pub Date : 2020-07-13

    No abstract is available for this article.

    更新日期:2020-07-13
  • Spaceborne Cloud and Precipitation Radars: Status, Challenges, and Ways Forward.
    Rev. Geophys. (IF 21.449) Pub Date : 2020-07-13
    Alessandro Battaglia,Pavlos Kollias,Ranvir Dhillon,Richard Roy,Simone Tanelli,Katia Lamer,Mircea Grecu,Matthew Lebsock,Daniel Watters,Kamil Mroz,Gerald Heymsfield,Lihua Li,Kinji Furukawa

    Spaceborne radars offer a unique three‐dimensional view of the atmospheric components of the Earth's hydrological cycle. Existing and planned spaceborne radar missions provide cloud and precipitation information over the oceans and land difficult to access in remote areas. A careful look into their measurement capabilities indicates considerable gaps that hinder our ability to detect and probe key

    更新日期:2020-07-13
  • Probabilistic Seismic Hazard Analysis at Regional and National Scales: State of the Art and Future Challenges
    Rev. Geophys. (IF 21.449) Pub Date : 2020-06-01
    M. C. Gerstenberger, W. Marzocchi, T. Allen, M. Pagani, J. Adams, L. Danciu, E. H. Field, H. Fujiwara, N. Luco, K.‐F. Ma, C. Meletti, M. D. Petersen

    Seismic hazard modeling is a multidisciplinary science that aims to forecast earthquake occurrence and its resultant ground shaking. Such models consist of a probabilistic framework that quantifies uncertainty across a complex system; typically, this includes at least two model components developed from Earth science: seismic source and ground motion models. Although there is no scientific prescription

    更新日期:2020-06-01
  • Issue Information
    Rev. Geophys. (IF 21.449) Pub Date : 2020-04-01

    No abstract is available for this article.

    更新日期:2020-04-01
  • The Structure of Climate Variability Across Scales
    Rev. Geophys. (IF 21.449) Pub Date : 2020-03-25
    Christian L. E. Franzke, Susana Barbosa, Richard Blender, Hege‐Beate Fredriksen, Thomas Laepple, Fabrice Lambert, Tine Nilsen, Kristoffer Rypdal, Martin Rypdal, Manuel G, Scotto, Stéphane Vannitsem, Nicholas W. Watkins, Lichao Yang, Naiming Yuan

    One of the most intriguing facets of the climate system is that it exhibits variability across all temporal and spatial scales; pronounced examples are temperature and precipitation. The structure of this variability, however, is not arbitrary. Over certain spatial and temporal ranges, it can be described by scaling relationships in the form of power laws in probability density distributions and autocorrelation

    更新日期:2020-03-25
  • Bounding Global Aerosol Radiative Forcing of Climate Change.
    Rev. Geophys. (IF 21.449) Pub Date : 2020-03-16
    N Bellouin,J Quaas,E Gryspeerdt,S Kinne,P Stier,D Watson-Parris,O Boucher,K S Carslaw,M Christensen,A-L Daniau,J-L Dufresne,G Feingold,S Fiedler,P Forster,A Gettelman,J M Haywood,U Lohmann,F Malavelle,T Mauritsen,D T McCoy,G Myhre,J Mülmenstädt,D Neubauer,A Possner,M Rugenstein,Y Sato,M Schulz,S E Schwartz,O Sourdeval,T Storelvmo,V Toll,D Winker,B Stevens

    Aerosols interact with radiation and clouds. Substantial progress made over the past 40 years in observing, understanding, and modeling these processes helped quantify the imbalance in the Earth's radiation budget caused by anthropogenic aerosols, called aerosol radiative forcing, but uncertainties remain large. This review provides a new range of aerosol radiative forcing over the industrial era based

    更新日期:2020-03-16
  • The Tides They Are A‐Changin': A Comprehensive Review of Past and Future Nonastronomical Changes in Tides, Their Driving Mechanisms, and Future Implications
    Rev. Geophys. (IF 21.449) Pub Date : 2020-03-11
    Ivan D. Haigh, Mark D. Pickering, J. A. Mattias Green, Brian K. Arbic, Arne Arns, Sönke Dangendorf, David F. Hill, Kevin Horsburgh, Tom Howard, Déborah Idier, David A. Jay, Leon Jänicke, Serena B. Lee, Malte Müller, Michael Schindelegger, Stefan A. Talke, Sophie‐Berenice Wilmes, Philip L. Woodworth

    Scientists and engineers have observed for some time that tidal amplitudes at many locations are shifting considerably due to nonastronomical factors. Here we review comprehensively these important changes in tidal properties, many of which remain poorly understood. Over long geological time scales, tectonic processes drive variations in basin size, depth, and shape and hence the resonant properties

    更新日期:2020-03-11
  • Dry Deposition of Ozone Over Land: Processes, Measurement, and Modeling
    Rev. Geophys. (IF 21.449) Pub Date : 2020-03-10
    Olivia E. Clifton, Arlene M. Fiore, William J. Massman, Colleen B. Baublitz, Mhairi Coyle, Lisa Emberson, Silvano Fares, Delphine K. Farmer, Pierre Gentine, Giacomo Gerosa, Alex B. Guenther, Detlev Helmig, Danica L. Lombardozzi, J. William Munger, Edward G. Patton, Sally E. Pusede, Donna B. Schwede, Sam J. Silva, Matthias Sörgel, Allison L. Steiner, Amos P. K. Tai

    Dry deposition of ozone is an important sink of ozone in near‐surface air. When dry deposition occurs through plant stomata, ozone can injure the plant, altering water and carbon cycling and reducing crop yields. Quantifying both stomatal and nonstomatal uptake accurately is relevant for understanding ozone's impact on human health as an air pollutant and on climate as a potent short‐lived greenhouse

    更新日期:2020-03-10
  • Understanding Hail in the Earth System
    Rev. Geophys. (IF 21.449) Pub Date : 2020-03-02
    John T. Allen, Ian M. Giammanco, Matthew R. Kumjian, Heinz Jurgen Punge, Qinghong Zhang, Pieter Groenemeijer, Michael Kunz, Kiel Ortega

    The processes leading to the development of hail and the distribution of these events worldwide are reviewed. Microphysical and physical characteristics of hail development are described to provide context of the notable gaps in our understanding of what drives hail to grow large, or what determines how it falls to the ground. Distributional characteristics of hail are explored, utilizing both surface

    更新日期:2020-03-02
  • Thank You to Our Peer Reviewers for 2019
    Rev. Geophys. (IF 21.449) Pub Date : 2020-02-25
    Fabio Florindo, Ann Marie Carlton, Paolo D'Odorico, Qingyun Duan, Jasper S. Halekas, Gesine Mollenhauer, Eelco J. Rohling

    On behalf of the authors and readers of Reviews of Geophysics (RoG), the American Geophysical Union (AGU), and the broader scientific community, the editors wish to wholeheartedly thank those who reviewed manuscripts for RoG in 2019.

    更新日期:2020-02-25
  • The Physics of Sediment Transport Initiation, Cessation, and Entrainment Across Aeolian and Fluvial Environments
    Rev. Geophys. (IF 21.449) Pub Date : 2020-02-20
    Thomas Pähtz, Abram H. Clark, Manousos Valyrakis, Orencio Durán

    Predicting the morphodynamics of sedimentary landscapes due to fluvial and aeolian flows requires answering the following questions: Is the flow strong enough to initiate sediment transport, is the flow strong enough to sustain sediment transport once initiated, and how much sediment is transported by the flow in the saturated state (i.e., what is the transport capacity)? In the geomorphological and

    更新日期:2020-02-20
  • Methane Mitigation: Methods to Reduce Emissions, on the Path to the Paris Agreement
    Rev. Geophys. (IF 21.449) Pub Date : 2020-02-15
    E. G. Nisbet, R. E. Fisher, D. Lowry, J. L. France, G. Allen, S. Bakkaloglu, T. J. Broderick, M. Cain, M. Coleman, J. Fernandez, G. Forster, P. T. Griffiths, C. P. Iverach, B. F. J. Kelly, M. R. Manning, P. B. R. Nisbet‐Jones, J. A. Pyle, A. Townsend‐Small, A. al‐Shalaan, N. Warwick, G. Zazzeri

    The atmospheric methane burden is increasing rapidly, contrary to pathways compatible with the goals of the 2015 United Nations Framework Convention on Climate Change Paris Agreement. Urgent action is required to bring methane back to a pathway more in line with the Paris goals. Emission reduction from “tractable” (easier to mitigate) anthropogenic sources such as the fossil fuel industries and landfills

    更新日期:2020-02-15
  • Issue Information
    Rev. Geophys. (IF 21.449) Pub Date : 2020-02-12

    No abstract is available for this article.

    更新日期:2020-02-12
  • Recent Advances and Challenges of Waveform‐Based Seismic Location Methods at Multiple Scales
    Rev. Geophys. (IF 21.449) Pub Date : 2020-01-30
    Lei Li, Jingqiang Tan, Benjamin Schwarz, František Staněk, Natalia Poiata, Peidong Shi, Leon Diekmann, Leo Eisner, Dirk Gajewski

    Source locations provide fundamental information on earthquakes and lay the foundation for seismic monitoring at all scales. Seismic source location as a classical inverse problem has experienced significant methodological progress during the past century. Unlike the conventional traveltime‐based location methods that mainly utilize kinematic information, a new category of waveform‐based methods, including

    更新日期:2020-01-30
  • Issue Information
    Rev. Geophys. (IF 21.449) Pub Date : 2020-01-24

    No abstract is available for this article.

    更新日期:2020-01-24
  • Space‐Based Observations for Understanding Changes in the Arctic‐Boreal Zone
    Rev. Geophys. (IF 21.449) Pub Date : 2020-01-16
    Bryan N. Duncan, Lesley E. Ott, James B. Abshire, Ludovic Brucker, Mark L. Carroll, James Carton, Josefino C. Comiso, Emmanuel P. Dinnat, Bruce C. Forbes, Alemu Gonsamo, Watson W. Gregg, Dorothy K. Hall, Iolanda Ialongo, Randi Jandt, Ralph A. Kahn, Alexey Karpechko, Stephan R. Kawa, Seiji Kato, Timo Kumpula, Erkki Kyrölä, Tatiana V. Loboda, Kyle C. McDonald, Paul M. Montesano, Ray Nassar, Christopher

    Observations taken over the last few decades indicate that dramatic changes are occurring in the Arctic‐Boreal Zone (ABZ), which are having significant impacts on ABZ inhabitants, infrastructure, flora and fauna, and economies. While suitable for detecting overall change, the current capability is inadequate for systematic monitoring and for improving process‐based and large‐scale understanding of

    更新日期:2020-01-16
  • Sustainable Observations of the AMOC: Methodology and Technology
    Rev. Geophys. (IF 21.449) Pub Date : 2020-01-08
    G. D. McCarthy, P. J. Brown, C. N. Flagg, G. Goni, L. Houpert, C. W. Hughes, R. Hummels, M. Inall, K. Jochumsen, K. M. H. Larsen, P. Lherminier, C. S. Meinen, B. I. Moat, D. Rayner, M. Rhein, A. Roessler, C. Schmid, D. A. Smeed

    The Atlantic Meridional Overturning Circulation (AMOC) is a key mechanism of heat, freshwater, and carbon redistribution in the climate system. The precept that the AMOC has changed abruptly in the past, notably during and at the end of the last ice age, and that it is “very likely” to weaken in the coming century due to anthropogenic climate change is a key motivation for sustained observations of

    更新日期:2020-01-08
  • Material Transport in the Ocean Mixed Layer: Recent Developments Enabled by Large Eddy Simulations
    Rev. Geophys. (IF 21.449) Pub Date : 2019-12-30
    Marcelo Chamecki, Tomas Chor, Di Yang, Charles Meneveau

    Material transport in the ocean mixed layer (OML) is an important component of natural processes such as gas and nutrient exchanges. It is also important in the context of pollution (oil droplets, microplastics, etc.). Observational studies of small‐scale three‐dimensional turbulence in the OML are difficult, especially if one aims at a systematic coverage of relevant parameters and their effects,

    更新日期:2019-12-30
  • One Hundred Thousand Years of Geomagnetic Field Evolution
    Rev. Geophys. (IF 21.449) Pub Date : 2019-12-26
    S. Panovska, M. Korte, C. G. Constable

    Paleomagnetic records from sediments, archeological artifacts, and lava flows provide the foundation for studying geomagnetic field changes over 0–100 ka. Late Quaternary time‐varying spherical harmonic models for 0–100 ka produce a global view used to evaluate new data records, study the paleomagnetic secular variation on centennial to multimillennial timescales, and investigate extreme regional or

    更新日期:2019-12-26
  • Ionospheric Detection of Natural Hazards
    Rev. Geophys. (IF 21.449) Pub Date : 2019-12-24
    Elvira Astafyeva

    Natural hazards (NH), such as earthquakes, tsunamis, volcanic eruptions, and severe tropospheric weather events, generate acoustic and gravity waves that propagate upward and cause perturbations in the atmosphere and ionosphere. The first NH‐related ionospheric disturbances were detected after the great 1964 Alaskan earthquake by ionosondes and Doppler sounders. Since then, many other observations

    更新日期:2019-12-24
  • Scientific Merits and Analytical Challenges of Tree‐Ring Densitometry
    Rev. Geophys. (IF 21.449) Pub Date : 2019-11-26
    J. Björklund, G. von Arx, D. Nievergelt, R. Wilson, J. Van den Bulcke, B. Günther, N. J. Loader, M. Rydval, P. Fonti, T. Scharnweber, L. Andreu‐Hayles, U. Büntgen, R. D'Arrigo, N. Davi, T. De Mil, J. Esper, H. Gärtner, J. Geary, B. E. Gunnarson, C. Hartl, A. Hevia, H. Song, K. Janecka, R. J. Kaczka, A. V. Kirdyanov, M. Kochbeck, Y. Liu, M. Meko, I. Mundo, K. Nicolussi, R. Oelkers, T. Pichler, R. Sánchez‐Salguero

    X‐ray microdensitometry on annually resolved tree‐ring samples has gained an exceptional position in last‐millennium paleoclimatology through the maximum latewood density (MXD) parameter, but also increasingly through other density parameters. For 50 years, X‐ray based measurement techniques have been the de facto standard. However, studies report offsets in the mean levels for MXD measurements derived

    更新日期:2019-11-26
  • Major Ice Sheet Change in the Weddell Sea Sector of West Antarctica Over the Last 5,000 Years
    Rev. Geophys. (IF 21.449) Pub Date : 2019-11-06
    Martin J. Siegert, Jonathan Kingslake, Neil Ross, Pippa L. Whitehouse, John Woodward, Stewart S. R. Jamieson, Michael J. Bentley, Kate Winter, Martin Wearing, Andrew S. Hein, Hafeez Jeofry, David E. Sugden

    Until recently, little was known about the Weddell Sea sector of the West Antarctic Ice Sheet. In the last 10 years, a variety of expeditions and numerical modelling experiments have improved knowledge of its glaciology, glacial geology and tectonic setting. Two of the sector's largest ice streams rest on a steep reverse‐sloping bed yet, despite being vulnerable to change, satellite observations show

    更新日期:2019-11-06
  • Issue Information
    Rev. Geophys. (IF 21.449) Pub Date : 2019-10-23

    No abstract is available for this article.

    更新日期:2019-10-23
  • Mechanisms of Methane Hydrate Formation in Geological Systems
    Rev. Geophys. (IF 21.449) Pub Date : 2019-10-16
    K. You, P.B. Flemings, A. Malinverno, T.S. Collett, K. Darnell

    Natural gas hydrate is ice‐like mixture of gas (mostly methane) and water that is widely found in sediments along the world's continental margins and within and beneath permafrost and glaciers in a near‐surface depth interval where the pressure is sufficiently high and temperature sufficiently low for gas hydrate to be stable. We categorize the myriad of geological gas hydrate deposits into five characteristic

    更新日期:2019-10-16
  • The Solar Clock
    Rev. Geophys. (IF 21.449) Pub Date : 2019-10-14
    C.T. Russell, L.K. Jian, J.G. Luhmann

    The Sun is powered by a very stable source of fusion energy in its core that radiates that energy outward in a constant flow. Yet it has a cycle of magnetic dynamo activity whose strength and duration are variable. This variability, which affects the Earth's “space climate,” points to temporal changes in the convective and diffusive transport of magnetic flux above the tachocline, where the flux is

    更新日期:2019-10-14
  • The Role of Chemistry in Fracture Pattern Development and Opportunities to Advance Interpretations of Geological Materials
    Rev. Geophys. (IF 21.449) Pub Date : 2019-09-13
    S. E. Laubach, R. H. Lander, L. J. Criscenti, L. M. Anovitz, J. L. Urai, R. M. Pollyea, J. N. Hooker, W. Narr, M. A. Evans, S. N. Kerisit, J. E. Olson, T. Dewers, D. Fisher, R. Bodnar, B. Evans, P. Dove, L. M. Bonnell, M. P. Marder, L. Pyrak‐Nolte

    Fracture pattern development has been a challenging area of research in the Earth sciences for more than 100 years. Much has been learned about the spatial and temporal complexity inherent to these systems, but severe challenges remain. Future advances will require new approaches. Chemical processes play a larger role in opening‐mode fracture pattern development than has hitherto been appreciated.

    更新日期:2019-09-13
  • Understanding the Seasonal Cycle of Antarctic Sea Ice Extent in the Context of Longer‐Term Variability
    Rev. Geophys. (IF 21.449) Pub Date : 2019-09-04
    Clare Eayrs, David Holland, Diana Francis, Till Wagner, Rajesh Kumar, Xichen Li

    Over the 40‐year satellite record, there has been a slight increasing trend in total annual mean Antarctic sea ice extent of approximately 1.5% per decade that is made up of the sum of significantly larger opposing regional trends. However, record increases in total Antarctic sea ice extent were observed during 2012–2014, followed by record lows (for the satellite era) through 2018. There is still

    更新日期:2019-09-04
  • Burrowing Invasive Species: An Unquantified Erosion Risk at the Aquatic‐Terrestrial Interface
    Rev. Geophys. (IF 21.449) Pub Date : 2019-08-26
    Gemma L. Harvey, Alexander J. Henshaw, James Brasington, Judy England

    Invasive nonnative species acting as “ecosystem engineers” or “geomorphic agents” can represent a major landscape disturbance. Quantification of their biogeomorphic impacts remains a key knowledge gap, and aquatic‐terrestrial transition zones may be particularly exposed to impacts. We demonstrate how burrowing invasive species represent a potentially significant but unquantified erosion risk at aquatic

    更新日期:2019-08-26
  • Luminescence as a Sediment Tracer and Provenance Tool
    Rev. Geophys. (IF 21.449) Pub Date : 2019-08-21
    Harrison J. Gray, Mayank Jain, Andre O. Sawakuchi, Shannon A. Mahan, Gregory E. Tucker

    Luminescence holds unique potential as a sediment tracer and provenance method. The tracer application of luminescence has key advantages including ease of measurement, relatively low cost, and applicability to geologically ubiquitous quartz and feldspar sand and silt. These advantages can help answer fundamental questions about geomorphology, sediment transport, sediment production, and the tectonic/climatic

    更新日期:2019-08-21
  • The Molecular Basis for Understanding the Impacts of Ocean Warming
    Rev. Geophys. (IF 21.449) Pub Date : 2019-08-19
    Peter G. Brewer

    A grand challenge for ocean chemists in the years ahead lies in the need to tackle the chemical consequences of ocean warming with the same rigor and intensity that has been brought to bear on the physical chemistry of ocean acidification. For over 50 years ocean chemistry has been dominated by the study of pH‐dependent processes, but to address the biogeochemical impacts of ocean warming, we will

    更新日期:2019-08-19
  • Global Isotope Hydrogeology―Review
    Rev. Geophys. (IF 21.449) Pub Date : 2019-08-12
    Scott Jasechko

    Groundwater 18O/16O, 2H/1H, 13C/12C, 3H, and 14C data can help quantify molecular movements and chemical reactions governing groundwater recharge, quality, storage, flow, and discharge. Here, commonly applied approaches to isotopic data analysis are reviewed, involving groundwater recharge seasonality, recharge elevations, groundwater ages, paleoclimate conditions, and groundwater discharge. Reviewed

    更新日期:2019-08-12
  • The Demographics of Water: A Review of Water Ages in the Critical Zone
    Rev. Geophys. (IF 21.449) Pub Date : 2019-07-24
    Matthias Sprenger, Christine Stumpp, Markus Weiler, Werner Aeschbach, Scott T. Allen, Paolo Benettin, Maren Dubbert, Andreas Hartmann, Markus Hrachowitz, James W. Kirchner, Jeffrey J. McDonnell, Natalie Orlowski, Daniele Penna, Stephan Pfahl, Michael Rinderer, Nicolas Rodriguez, Maximilian Schmidt, Christiane Werner

    The time that water takes to travel through the terrestrial hydrological cycle and the critical zone is of great interest in Earth system sciences with broad implications for water quality and quantity. Most water age studies to date have focused on individual compartments (or subdisciplines) of the hydrological cycle such as the unsaturated or saturated zone, vegetation, atmosphere, or rivers. However

    更新日期:2019-07-24
  • Process Understanding of Soil BVOC Fluxes in Natural Ecosystems: A Review
    Rev. Geophys. (IF 21.449) Pub Date : 2019-07-23
    J. Tang, G. Schurgers, R. Rinnan

    Biogenic volatile organic compounds (BVOCs) can be released from soils to the atmosphere through microbial decomposition of plant residues or soil organic carbon, root emission, evaporation of litter‐stored BVOCs, and other physical processes. Soils can also act as a sink of BVOCs through biotic and abiotic uptake. Currently, the source and sink capabilities of soils have not been explicitly accounted

    更新日期:2019-07-23
  • Issue Information
    Rev. Geophys. (IF 21.449) Pub Date : 2019-07-16

    No abstract is available for this article.

    更新日期:2019-07-16
  • An Overview of Global Leaf Area Index (LAI): Methods, Products, Validation, and Applications
    Rev. Geophys. (IF 21.449) Pub Date : 2019-07-16
    Hongliang Fang, Frédéric Baret, Stephen Plummer, Gabriela Schaepman‐Strub

    Leaf area index (LAI) is a critical vegetation structural variable and is essential in the feedback of vegetation to the climate system. The advancement of the global Earth Observation has enabled the development of global LAI products and boosted global Earth system modeling studies. This overview provides a comprehensive analysis of LAI field measurements and remote sensing estimation methods, the

    更新日期:2019-07-16
  • The Role of Geomagnetic Field Intensity in Late Quaternary Evolution of Humans and Large Mammals
    Rev. Geophys. (IF 21.449) Pub Date : 2019-07-06
    J. E. T. Channell, L. Vigliotti

    It has long been speculated that biological evolution was influenced by ultraviolet radiation (UVR) reaching the Earth's surface, despite imprecise knowledge of the timing of both UVR flux and evolutionary events. The past strength of Earth's dipole field provides a proxy for UVR flux because of its role in maintaining stratospheric ozone. The timing of Quaternary evolutionary events has become better

    更新日期:2019-07-06
  • The Weddell Gyre, Southern Ocean: Present Knowledge and Future Challenges
    Rev. Geophys. (IF 21.449) Pub Date : 2019-07-04
    M. Vernet, W. Geibert, M. Hoppema, P. J. Brown, C. Haas, H. H. Hellmer, W. Jokat, L. Jullion, M. Mazloff, D. C. E. Bakker, J. A. Brearley, P. Croot, T. Hattermann, J. Hauck, C.‐D. Hillenbrand, C. J. M. Hoppe, O. Huhn, B. P. Koch, O. J. Lechtenfeld, M. P. Meredith, A. C. Naveira Garabato, E.‐M. Nöthig, I. Peeken, M. M. Rutgers van der Loeff, S. Schmidtko, M. Schröder, V. H. Strass, S. Torres‐Valdés

    The Weddell Gyre (WG) is one of the main oceanographic features of the Southern Ocean south of the Antarctic Circumpolar Current which plays an influential role in global ocean circulation as well as gas exchange with the atmosphere. We review the state‐of‐the art knowledge concerning the WG from an interdisciplinary perspective, uncovering critical aspects needed to understand this system's role in

    更新日期:2019-07-04
  • Ground, Proximal, and Satellite Remote Sensing of Soil Moisture
    Rev. Geophys. (IF 21.449) Pub Date : 2019-06-19
    Ebrahim Babaeian, Morteza Sadeghi, Scott B. Jones, Carsten Montzka, Harry Vereecken, Markus Tuller

    Soil moisture (SM) is a key hydrologic state variable that is of significant importance for numerous Earth and environmental science applications that directly impact the global environment and human society. Potential applications include, but are not limited to, forecasting of weather and climate variability; prediction and monitoring of drought conditions; management and allocation of water resources;

    更新日期:2019-06-19
  • Synthesis of Oceanic Crustal Structure From Two‐Dimensional Seismic Profiles
    Rev. Geophys. (IF 21.449) Pub Date : 2019-06-14
    G. L. Christeson, J. A. Goff, R. S. Reece

    We present a new synthesis of oceanic crustal structure from two‐dimensional seismic profiles to explore differences related to spreading rate and age. Primary results are as follows: (1) Layer 2 has an average thickness of 1.84 km but is thicker for young slow‐spreading crust and thinner for young superfast‐spreading crust. At faster‐spreading rates the layer 2/3 boundary likely corresponds to the

    更新日期:2019-06-14
  • Earthquake‐Induced Chains of Geologic Hazards: Patterns, Mechanisms, and Impacts
    Rev. Geophys. (IF 21.449) Pub Date : 2019-06-14
    Xuanmei Fan, Gianvito Scaringi, Oliver Korup, A. Joshua West, Cees J. van Westen, Hakan Tanyas, Niels Hovius, Tristram C. Hales, Randall W. Jibson, Kate E. Allstadt, Limin Zhang, Stephen G. Evans, Chong Xu, Gen Li, Xiangjun Pei, Qiang Xu, Runqiu Huang

    Large earthquakes initiate chains of surface processes that last much longer than the brief moments of strong shaking. Most moderate‐ and large‐magnitude earthquakes trigger landslides, ranging from small failures in the soil cover to massive, devastating rock avalanches. Some landslides dam rivers and impound lakes, which can collapse days to centuries later, and flood mountain valleys for hundreds

    更新日期:2019-06-14
  • Observing and Modeling Ice Sheet Surface Mass Balance
    Rev. Geophys. (IF 21.449) Pub Date : 2019-06-13
    Jan T. M. Lenaerts, Brooke Medley, Michiel R. van den Broeke, Bert Wouters

    Surface mass balance (SMB) provides mass input to the surface of the Antarctic and Greenland Ice Sheets and therefore comprises an important control on ice sheet mass balance and resulting contribution to global sea level change. As ice sheet SMB varies highly across multiple scales of space (meters to hundreds of kilometers) and time (hourly to decadal), it is notoriously challenging to observe and

    更新日期:2019-06-13
  • A Review of the Role of the Atlantic Meridional Overturning Circulation in Atlantic Multidecadal Variability and Associated Climate Impacts
    Rev. Geophys. (IF 21.449) Pub Date : 2019-06-07
    Rong Zhang, Rowan Sutton, Gokhan Danabasoglu, Young‐Oh Kwon, Robert Marsh, Stephen G. Yeager, Daniel E. Amrhein, Christopher M. Little

    By synthesizing recent studies employing a wide range of approaches (modern observations, paleo reconstructions, and climate model simulations), this paper provides a comprehensive review of the linkage between multidecadal Atlantic Meridional Overturning Circulation (AMOC) variability and Atlantic Multidecadal Variability (AMV) and associated climate impacts. There is strong observational and modeling

    更新日期:2019-06-07
  • Utilizing the Impact of Earth and Atmospheric Tides on Groundwater Systems: A Review Reveals the Future Potential
    Rev. Geophys. (IF 21.449) Pub Date : 2019-05-28
    Timothy C. McMillan, Gabriel C. Rau, Wendy A. Timms, Martin S. Andersen

    Groundwater extraction is increasing rapidly in many areas of the world, causing serious impacts such as falling water tables, ground surface subsidence, water quality degradation, and reduction of stream baseflow on which many ecosystems depend. Methods for understanding and predicting the impacts of groundwater extraction generally lack detailed spatial and temporal knowledge of the subsurface hydrogeomechanical

    更新日期:2019-05-28
  • Model Hierarchies for Understanding Atmospheric Circulation
    Rev. Geophys. (IF 21.449) Pub Date : 2019-05-23
    Penelope Maher, Edwin P. Gerber, Brian Medeiros, Timothy M. Merlis, Steven Sherwood, Aditi Sheshadri, Adam H. Sobel, Geoffrey K. Vallis, Aiko Voigt, Pablo Zurita‐Gotor

    In this review, we highlight the complementary relationship between simple and comprehensive models in addressing key scientific questions to describe Earth's atmospheric circulation. The systematic representation of models in steps, or hierarchies, connects our understanding from idealized systems to comprehensive models and ultimately the observed atmosphere. We define three interconnected principles

    更新日期:2019-05-23
  • Aerosol Mixing State: Measurements, Modeling, and Impacts
    Rev. Geophys. (IF 21.449) Pub Date : 2019-05-21
    N. Riemer, A. P. Ault, M. West, R. L. Craig, J. H. Curtis

    Atmospheric aerosols are complex mixtures of different chemical species, and individual particles exist in many different shapes and morphologies. Together, these characteristics contribute to the aerosol mixing state. This review provides an overview of measurement techniques to probe aerosol mixing state, discusses how aerosol mixing state is represented in atmospheric models at different scales

    更新日期:2019-05-21
  • Issue Information
    Rev. Geophys. (IF 21.449) Pub Date : 2019-04-08

    No abstract is available for this article.

    更新日期:2019-04-08
  • Beyond Classical Observations in Hydrogeology: The Advantages of Including Exchange Flux, Temperature, Tracer Concentration, Residence Time, and Soil Moisture Observations in Groundwater Model Calibration
    Rev. Geophys. (IF 21.449) Pub Date : 2019-03-31
    Oliver S. Schilling, Peter G. Cook, Philip Brunner

    Traditionally, groundwater and surface water flow models have been calibrated against two observation types: hydraulic heads and surface water discharge. It has repeatedly been demonstrated, however, that these classical observations do not contain sufficient information to calibrate flow models. To reduce the predictive uncertainty of flow models, the consideration of other observation types constitutes

    更新日期:2019-03-31
  • Thank You to Our 2018 Peer Reviewers
    Rev. Geophys. (IF 21.449) Pub Date : 2019-03-29
    Fabio Florindo, Jasper S. Halekas, Gregory Okin, Alan Robock, Eelco J. Rohling

    On behalf of the authors and readers of Reviews of Geophysics, the American Geophysical Union (AGU), and the broader scientific community, the Editors wish to wholeheartedly thank those who reviewed the manuscripts for Reviews of Geophysics in 2018. Reviews of Geophysics is the top rated journal in Geophysics and Geochemistry and it could not exist without your investment of time and effort, lending

    更新日期:2019-03-29
Contents have been reproduced by permission of the publishers.
导出
全部期刊列表>>
Springer 纳米技术权威期刊征稿
全球视野覆盖
施普林格·自然新
chemistry
3分钟学术视频演讲大赛
物理学研究前沿热点精选期刊推荐
自然职位线上招聘会
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
ACS ES&T Engineering
ACS ES&T Water
屿渡论文,编辑服务
ACS Publications填问卷
阿拉丁试剂right
麻省大学
西北大学
湖南大学
华东师范大学
王要兵
化学所
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
天合科研
x-mol收录
陆军军医大学
杨财广
廖矿标
试剂库存
down
wechat
bug