Economics of climate change: risk and responsibility by world region     

《Climate Policy》2013,13(3):298-316

The impacts of predicted climate change will not be distributed evenly around the world. As post-Kyoto negotiations unfold, relating the geographical distribution of projected impacts to responsibility for emissions among world regions is essential for achieving an equitable path forward. This article surveys the current knowledge of regional climate consequences, and delves into the regional predictions of economic assessment models to date, examining how the uncertainties, assumptions and ethical dimensions influence the portrayal of risk at this scale. The few studies that quantitatively compared regional risk and responsibility are reviewed, and the analytical framework from one such study is applied to the 2006 Stern Review's projections to give the first regional comparison to take purchasing power and welfare considerations into account. Synthesizing burden and blame in this way is informative for policy makers; the world's most vulnerable communities—in Africa, the Indian subcontinent, Latin America, and small island states—accounted for less than 33% of global greenhouse gas emissions over the period 1961–2000, but may experience more than 75% of the ensuing climate damages this century. This analysis reinforces the call for industrialized nations to lead mitigation efforts, and to do so decisively and swiftly.  相似文献   

接收机滤波器群时延对CAPS伪距测量影响的优化研究     

余宜珂  杨剑青 《天文研究与技术》2014,(4):356-361

在中国区域定位系统（Chinese Area Positioning System,CAPS）中,带通滤波器是用户接收机的重要组成部分,对于宽频测距码来说,其群时延特性是测距的重要误差来源之一.分析了接收机码跟踪环路,给出相关函数估算测距偏差,对带通滤波器群时延开展仿真分析,并研究了改进接收机设计以优化群时延特性的方法.研究对GNSS接收机的射频和环路设计有一定借鉴意义.  相似文献   

Chandra observations of the nucleus of M33     

Guillaume Dubus  Robert E. Rutledge 《Monthly notices of the Royal Astronomical Society》2002,336(3):901-906

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The low-luminosity galaxy population in the NGC 5044 Group     

Sergio A. Cellone  Alberto Buzzoni 《Monthly notices of the Royal Astronomical Society》2005,356(1):41-53

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Events of decadal thermocline variations in the South Pacific Ocean   总被引：1，自引：0，他引：1  

姜华  吴德星  万修全 《中国海洋湖沼学报》2006,24(2):111-117

1 INTRODUCTION It has been suggested that interior thermal anomalies that subduct into the subtropics of the North Pacific may propagate to the equatorial region of the Pacific (Russell, 1994; Deser et al., 1996; Gu and Philander, 1997; Huang and Huang an…  相似文献   

GEOCHEMICAL STUDY OF THE CORE S01 IN THE SOUTH CHINA SEA     

何良彪 《中国海洋湖沼学报》1995,13(2):183-190

Si, Ti, Al, Fe, Mn, Ca, Mg, K, Na, P and Sr, Ba, Rb, Ga, V, Zr, Cr, Ni, Co, Cu, Zn, Pb,Nb, Y, Th, La in the core S01 were analyzed and the pattems of their enrichment are discussed.Enrichment of Na, Fe, Mn, Ba, Cu elements in the core indicates volcanic material are an importantsoarce of the sediments in the area. The enrichment frequently varying with the deposition processshows bottom volcanism is frequent in the area and that the studied area is a margin basin with distinctoceanic characteristics. The abnormal enrichment of Mn at the layers(0-15 cm and 665-670 cm) of the core could beclosely related to and so, indicate, the wide deposition hiatus that have occurred in the West PacificOcean and adjacent margin seas since Late Pleistocene.  相似文献   

南秦岭勉略蛇绿构造混杂带辉长辉绿岩类微量-稀土元素地球化学   总被引：2，自引：0，他引：2  

赖绍聪 《地球科学与环境学报》2005,27(3):5-9

应用元素地球化学方法．研究了勉略带中辉长辉绿岩的相关特征．结果表明．勉略蛇绿构造混杂带内的辉长岩属高铝强碱质辉长岩类，是地幔橄榄岩部分熔融的产物。辉绿岩墙群属强碱铝质基性岩类，过渡族元素蛛网图与辉长岩类几乎完全相同，其不相容元素与辉长岩类总体趋势相一致．反映了一种递进岩浆演化趋势。因此，本区辉长岩与辉绿岩墙群具同源岩浆分异演化的地球化学特征．其均为勉略蛇绿岩的重要组成端元。  相似文献   

A photometrically and kinematically distinct core in the Sextans dwarf spheroidal galaxy     

Jan T. Kleyna  Mark I. Wilkinson  N. Wyn Evans  Gerard Gilmore 《Monthly notices of the Royal Astronomical Society》2004,354(4):L66-L72

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对二郎坪群火神庙组物质组成的质疑与再认识     

姜常义  苏生瑞  张振飞  杨志华  赵太平 《地球科学与环境学报》1995,(2)

经研究证明，前人建立的二郎坪群火神庙组确有少量的亚碱性双峰式火山岩。这些火山岩零星地分布在几个地区，走向不连续，出露宽度一般为数百米。构成该组主体的是一条规模宏伟的侵入岩带，其岩石组合为辉长岩－闪长岩－石英闪长岩－斜长花岗岩－花岗岩，总体上表现为正序岩浆演化序列。这些侵入岩普遍经历了三个阶段的变形变质作用，即第一阶段为韧性变形；第二阶段为静态重结晶；第三阶段为带状褶劈理，表现了复杂而漫长的构造演化史。  相似文献   

The faint end of the galaxy luminosity function     

Neil Trentham  R. Brent Tully 《Monthly notices of the Royal Astronomical Society》2002,335(3):712-732

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