Booknotes     

PETER J. SMITH 《Geology Today》1987,3(1):35-35

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CLIMATE, HISTORY AND THE MODERN WORLD. By H. H. Lamb     

PETER PERRY 《New Zealand geographer》1983,39(2):88-88

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A note on 1-dimensional calculations of baroclinic and barotropic instabilities     

PETER D. DITLEVSEN 《地球，A辑:动力气象学与海洋学》1997,49(3):337-346

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Monohydrocalcite in the sediments of Lake Kivu (East Africa)   总被引：3，自引：0，他引：3  

PETER STOFFERS  REINHARD FISCHBECK 《Sedimentology》1974,21(1):163-170

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Corporate responses to the CDM: the Indian pulp and paper industry     

KATI KULOVESI  MARÍA GUTIÉRREZ  PETER DORAN  MIQUEL MUŃOZ 《Climate Policy》2013,13(3):255-261

The key outcomes of the 2006 Nairobi Conference on Climate Change are described, with a particular emphasis on adaptation, the Clean Development Mechanism (CDM) and the future of the United Nations climate change regime beyond 2012. Based on an analysis of the key issues being negotiated, the Nairobi Conference can be understood as an important step in the larger process towards a future climate change regime. Its significance is in establishing the confidence and trust between the key players that will be necessary for the successful completion of the current phase of negotiations and agreement on the post-2012 climate change regime.  相似文献   

ROBERT LOUIS STEVENSON: A FOOTNOTE TO POLITICAL GEOGRAPHY     

PETER PERRY 《New Zealand geographer》1989,45(1):41-42

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Modelling uncertainty in natural resource analysis using fuzzy sets and Monte Carlo simulation: slope stability prediction     

TREVOR J. DAVIS  C. PETER KELLER 《International journal of geographical information science》2013,27(5):409-434

The techniques of fuzzy logic and Monte Carlo simulation are combined to address two incompatible types of uncertainty present in most natural resource data: thematic classification uncertainty and variance in unclassified continuously distributed data. The resultant model of uncertainty is applied to an infinite slope stability model using data from Louise Island, British Columbia. Results are summarized so as to answer forestry decision support queries. The proposed model of uncertainty in resource data analysis is found to have utility in combining different types of uncertainty, and efficiently utilizing available metadata. Integration of uncertainty data models with visualization tools is considered a necessary prerequisite to effective implementation in decision support systems.  相似文献   

The geography of elderly minority populations in the United States     

PETER A. ROGERSON 《International journal of geographical information science》2013,27(7):687-698

A tremendous amount of attention has been given to the aging of population that is occurring in many parts of the world. However, very little work has focused upon the aging of minority populations. Because minority populations often have greater needs for health care and fewer resources to pay for it, it is important to assess the demand for services. This paper takes an initial step in that direction by focusing upon the geographic distribution of elderly minority populations in the United States. The study is carried out at several spatial scales, and it is concluded that elderly minority populations tend to be even more segregated than their non-elderly counterparts.  相似文献   

Landsat,aerial photography and state factors in soil survey of arid and humid Patagonia,Argentina     

PETER FREDERIKSEN M.Sc. 《Geografisk tidskrift / udgivet af Bestyrelsen for Det Kongelige danske geografiske selskab》2013,113(1):39-48

Frederiksen, Peter: LANDSAT, aerial photography and state factors in soil survey of arid and humid Patagonia, Argentina. Geografisk Tidsskrift 81: 39–48. Copenhagen, June, 1981

The applicability of LANDSAT, aerial photography, and topographical maps was tested in relation to soil survey of humid and arid Patagonia, Argentina. Fieldwork was carried out as toposequence-studies in five vegetation zones and observations of roadcuts. These data were compared with LANDSAT and aerial photography. Only observations on state factors of soil formation were obtained. These showed as a first rough approximation a consistent relationship between observed state factors as expressed in land systems and stage of soil development.  相似文献   

Tsunami backwash deposits with Chicxulub impact ejecta and dinosaur remains from the Cretaceous–Palaeogene boundary in the La Popa Basin,Mexico     

PETER SCHULTE  JAN SMIT  ALEXANDER DEUTSCH  TOBIAS SALGE  ANDREA FRIESE  KILIAN BEICHEL 《Sedimentology》2012,59(3):737-765

The La Popa Basin in north‐eastern Mexico features outstanding, continuous three‐dimensional exposures of the Cretaceous–Palaeogene boundary event deposit in shallow shelf environments pierced by salt stocks. In the area to the south‐east of the El Papalote diapir, the Cretaceous–Palaeogene deposit consists of two superimposed sedimentary units and erosively overlies upper Maastrichtian sand‐siltstones with soft‐sediment deformation and liquefaction structures. The basal unit 1 is an up to 8 m thick chaotic, carbonate‐rich bed that discontinuously fills incised gutters and channels. Besides abundant silicic and carbonate ejecta spherules from the Chicxulub impact, unit 1 includes large sandstone boulders and abundant shallow‐water debris (for example, mud clasts, algae, bivalve shells, gastropod shells and vertebrate remains). Unit 1 is conformably overlain by unit 2. Distal to the diapir, unit 2 consists of a centimetre to decimetre‐thick conglomeratic, coarse bioclast and spherule‐bearing sandstone bed. Closer to the diapir, unit 2 becomes a metre‐thick series of four to eight conglomeratic to fine‐grained graded sandstone beds rich in shell debris and ejecta spherules. Unit 2 is conformably overlain by structureless to parallel laminated sandstone beds that may mark the return to the pre‐event depositional regime. The sedimentary characteristics of the Cretaceous–Palaeogene deposit, including its erosive base, its sheet‐like geometry, the presence of multiple, graded beds, evidence for upper flow regime conditions and the absence of bioturbation, support an origin by a short‐term multiphase depositional event. The occurrence of soft‐sediment deformation structures (for example, liquefaction) below the Cretaceous–Palaeogene deposit suggests that earthquakes were the first to occur at La Popa. Then, shelf collapse and strong backflow from the first tsunami waves may have triggered erosion and deposition by violent ejecta‐rich hyperconcentrated density flows (unit 1). Subsequently, a series of concentrated density flows resulting from tsunami backwash surges may have deposited the multiple‐graded bedding structures of unit 2. The specific depositional sequence and the Fe‐Mg‐rich as well as Si‐K‐rich composition of the ejecta spherules both provide a critical link to the well‐known deep marine Cretaceous–Palaeogene boundary sites in the adjacent Burgos basin in north‐eastern Mexico. Moreover, the pulse‐like input of Chicxulub ejecta material at the base of the event deposit allows for correlation with other Cretaceous–Palaeogene boundary sites in the Gulf of Mexico and the Atlantic, as well as in Central and Northern America. The presence of diverse dinosaur and mosasur bones and teeth in the event deposit is the first observation of such remains together with Chicxulub ejecta material. These findings indicate that dinosaurs lived in the area during the latest Maastrichtian and suggest that the tsunami waves not only eroded deltas and estuaries but the coastal plain as well.  相似文献