Digital imaging and public engagement in palaeontology     

Karl T. Bates  Peter L. Falkingham  David Hodgetts  James O. Farlow  Brent H. Breithaupt  Mike O'Brien  Neffra Matthews  William I. Sellers  & Phillip L. Manning 《Geology Today》2009,25(4):134-139

Public engagement and the promotion of science to a wider non-academic audience form an integral role of the professional scientist in the twenty-first century. The high level of public interest in palaeontology means that the Earth's prehistoric past can provide an important medium through which to communicate information concerning contemporary scientific issues. Here we explain how modern computer techniques can be used to enhance public understanding of complex palaeontological issues.  相似文献   

Comment on Zhang Y., Ye S., and Wu J. 2011. A modified global model for predicting the tritium distribution in precipitation, 1960–2005. Hydrological Processes 25:2379–2392     

Brent D. Newman  Luis J. Araguás‐Araguás  Pradeep K. Aggarwal 《水文研究》2013,27(8):1286-1287

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Advance,deglacial and sea‐level chronology for Foxe Peninsula,Baffin Island,Nunavut          下载免费PDF全文

Daniel J. Utting  John C. Gosse  Samuel E. Kelley  Kayla J. Vickers  Brent C. Ward  Michelle S. Trommelen 《Boreas: An International Journal of Quaternary Research》2016,45(3):439-454

The impact of the Laurentide Ice Sheet (LIS) deglaciation on Northern Hemisphere early Holocene climate can be evaluated only once a detailed chronology of ice history and sea‐level change is established. Foxe Peninsula is ideally situated on the northern boundary of Hudson Strait, and preserves a chronostratigraphy that provides important glaciological insights regarding changes in ice‐sheet position and relative sea level before and after the 8.2 ka cooling event. We utilized a combination of radiocarbon ages, adjusted with a new locally derived ΔR, and terrestrial in‐situ cosmogenic nuclide (TCN) exposure ages to develop a chronology for early‐Holocene events in the northern Hudson Strait. A marine limit at 192 m a.s.l., dated at 8.1–7.9 cal. ka BP, provides the timing of deglaciation following the 8.2 ka event, confirming that ice persisted at least north of Hudson Bay until then. A moraine complex and esker morphosequence, the Foxe Moraine, relates to glaciomarine outwash deltas and beaches at 160 m a.s.l., and is tightly dated at 7.6 cal. ka BP with a combination of shell dates and exposure ages on boulders. The final rapid collapse of Foxe Peninsula ice occurred by 7.1–6.9 cal. ka BP (radiocarbon dates and TCN depth profile age on an outwash delta), which supports the hypothesis that LIS melting contributed to the contemporaneous global sea‐level rise known as the Catastrophic Rise Event 3 (CRE‐3).  相似文献   

Participatory methods of incorporating scientific with traditional knowledge for volcanic hazard management on Ambae Island,Vanuatu   总被引：6，自引：1，他引：5  

Shane?J.?CroninEmail author  David?R.?Gaylord  Douglas?Charley  Brent?V.?Alloway  Sandrine?Wallez  Job?W.?Esau 《Bulletin of Volcanology》2004,66(7):652-668

Ambae Island is the largest of Vanuatus active volcanoes. It is also one of the nations potentially most dangerous, with 60 million m³ of lake-water perched at over 1340 m in the summit caldera and over the active vent. In 1995, small phreatic explosions, earthquake swarms and heightened gas release led to calls for evacuation preparation and community volcanic hazard awareness programs for the ~9500 inhabitants. Differences in perspective or world-view between the island dwellers adhering to traditional beliefs (Kastom) and external scientists and emergency managers led to a climate of distrust following this crisis. In an attempt to address these issues, rebuild dialogue and respect between communities, outside scientists and administrators, and move forward in volcanic hazard education and planning for Ambae, we adapted and applied Participatory Rural Appraisal (PRA) approaches. Initial gender-segregated PRA exercises from two representative communities provided a mechanism for cataloguing local traditional viewpoints and hazard perceptions. Ultimately, by combining elements of these viewpoints and perceptions with science-based management structures, we derived volcanic hazard management guidelines, supported by an alert system and map that were more readily accepted by the test communities than the earlier top-down plans imposed by outside governmental and scientific agencies. The strength of PRA approaches is that they permit scientists to understand important local perspective issues, including visualisations of volcanic hazards, weaknesses in internal and external communication systems, and gender and hierarchy conflicts, all of which can hinder community emergency management. The approach we describe has much to offer both developing and industrialised communities that wish to improve their awareness programs and mitigative planning. This approach should also enhance communication and understanding between volcanologists and the communities they serve.  相似文献   

Economy, Politics and Institutions: From Adaptation to Adaptive Management in Climate Change     

Alexander Thompson  Paul Robbins  Brent Sohngen  Joseph Arvai  Tomas Koontz 《Climatic change》2006,78(1):1-5

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The use of²³⁴Th/²³⁸ disequilibrium to examine the fate of particle-reactive species on the Yangtze continental shelf     

Brent A. McKee  David J. DeMaster  Charles A. Nittrouer 《Earth and Planetary Science Letters》1984,68(3):431-442

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Chemical and isotopic evaluation of water sources to the fens of South Park,Colorado   总被引：1，自引：0，他引：1  

Jenny B. Chapman  Brent Lewis  Greg Litus 《Environmental Geology》2003,43(5):533-545

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A crowd sensing system identifying geotopics and community interests from user-generated content     

M. Tenney  G. Brent Hall  R. E. Sieber 《International journal of geographical information science》2019,33(8):1497-1519

This paper presents a crowd sensing system (CSS) that captures geospatial social media topics and allows the review of results. Using Web-resources derived from social media platforms, the CSS uses a spatially-situated social network graph to harvest user-generated content from selected organizations and members of the public. This allows ‘passively’ contributed social media-based opinions, along with different variables, such as time, location, social interaction, service usage, and human activities to be examined and used to identify trending views and influential citizens. The data model and CSS are used for demonstration purposes to identify geotopics and community interests relevant to municipal affairs in the City of Toronto, Canada.  相似文献   

Framvaren Fjord as a natural laboratory for examining biogeochemical processes in anoxic environments     

Brent McKee  Jens Skei 《Marine Chemistry》1999,67(3-4)

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浙闽沿海地区I型-A型复合花岗岩体的地球化学及成因   总被引：28，自引：7，他引：21  

① 《岩石学报》1999,15(2):88

以鼓山－魁岐、青田和普陀山－桃花岛三个典型岩体为例,系统研究了浙闽沿海Ｉ型－Ａ型复合花岗岩体的地质和地球化学特征。研究结果表明：复合岩体中Ｉ型与Ａ型花岗岩在主量、微量和稀土元素特征上均存在明显变异。总体而言,Ａ型花岗岩较之Ｉ型花岗岩富硅、富碱、贫钙、镁、铝,并具偏高的Ｒｂ／Ｓｒ、Ｒｂ／Ｂａ、Ｇａ／Ａｌ和偏低的ＬＲＥＥ／ＨＲＥＥ比值及显著的铕负异常。两类花岗岩的Ｎｄ、Ｓｒ同位素组成均具有壳幔混熔岩浆的特点,但仍存在一定的变异。上述变异既有岩浆分异演化的影响,又有幔源岩浆卷入的贡献,在不同的复合岩体中起主导作用的因素各不相同。通过对岩石产出动力地质背景的全面分析,结合本区不同复合岩体中二类花岗岩具不同地球化学变异特点的地质事实,提出浙闽沿海Ｉ型－Ａ型复合花岗岩是区域构造应力、断裂构造、幔源岩浆卷入和岩浆分异演化多种因素综合作用的结果  相似文献