For the geological systems, assessment of influencing exogenous relief forming processes having essential impact on development of landscape status arises need of development of various field and image interpretation ...For the geological systems, assessment of influencing exogenous relief forming processes having essential impact on development of landscape status arises need of development of various field and image interpretation methods for creation of scenarios of possible changes of a geo-ecological situation in various massif having harmful consequences, by identification of relationships of cause and effect. It was analyzed possibilities of prognosis of the changes of the geo-ecological situation in high-mountainous of Great Caucasus with use of the geological, geomorphologic, climate and landscape materials, data of digital processing of the photo images and visual observation. Also the possibilities of forecasting of change of landscape structure of highlands in natural area of Great Caucasus with use of various data were analyzed. It was defined the main differences of relief situation, hydro meteorological conditions in the various parts of high-mountainous geo systems?in which exogenic processes were shown, character and intensity of land using which had the influence to the slope slides. These data allowed revealing the main distinctions of factors of a relief situation?in which were shown exodynamic relief and landscape forming processes, character and intensity of the land use, to some extent influencing on descent of landslides and area of their destructive.展开更多
厄尔布鲁斯山位于土耳其板块俯冲至西徐亚板块之下而形成的大高加索弧形构造带的弧顶部位,本身为晚更新世和全新世两个火山口组成的复式火山锥。厄尔布鲁斯山隆升过程和机制可划分为4 个阶段:中生代板块俯冲形成大高加索相对隆起区;新...厄尔布鲁斯山位于土耳其板块俯冲至西徐亚板块之下而形成的大高加索弧形构造带的弧顶部位,本身为晚更新世和全新世两个火山口组成的复式火山锥。厄尔布鲁斯山隆升过程和机制可划分为4 个阶段:中生代板块俯冲形成大高加索相对隆起区;新生代早期板块碰撞使大高加索成为强烈隆起区;新生代晚期发育了厄尔布鲁斯复式火山锥,并使之成为欧洲最高峰;许多迹象表明,厄尔布鲁斯火山现代并未熄灭,厄尔布鲁斯山以10 m m /a 的速度继续隆升。展开更多
大高加索山脉位于黑海和里海之间,是欧洲与亚洲的分界线,该区域气候受到北大西洋涛动(North Atlantic Oscillation,NAO)的强烈影响。为了对该区域的大气降水δ^18O(δ^18OP)与NAO的关系有更加深入的认识,本文利用大高加索山以南6个全球...大高加索山脉位于黑海和里海之间,是欧洲与亚洲的分界线,该区域气候受到北大西洋涛动(North Atlantic Oscillation,NAO)的强烈影响。为了对该区域的大气降水δ^18O(δ^18OP)与NAO的关系有更加深入的认识,本文利用大高加索山以南6个全球降水同位素监测网(Global Network of Isotope in Precipitation,GNIP)站点的δ^18OP数据,分析该区域δ^18OP的季节变化规律,以及δ^18OP与温度和降水量等气象要素及大气环流之间的关系。得到以下主要认识:①在月时间尺度上,δ^18OP与月平均温度之间有着显著的正相关关系(p<0.01),表明该区域δ^18OP主要受当地温度控制,表现出“温度效应”。②北大西洋涛动通过改变西风的强度和位置从而影响δ^18OP的变化:当NAO呈现负相位时,此时西风输送较弱,使得来自地中海的富含18O的水汽能够达到大高加索山以南,该地区δ^18OP偏正。而当NAO正相位时,西风急流输送较强,从北大西洋穿越黑海带来更多的δ^18OP偏轻的降水。因此,NAO所导致的水汽输送路径的变化可能是影响大高加索山以南地区δ^18OP的重要因素,这一研究结果为利用该地区地质记录中的δ^18O记录来重建过去的NAO变化提供了前提。展开更多
文摘For the geological systems, assessment of influencing exogenous relief forming processes having essential impact on development of landscape status arises need of development of various field and image interpretation methods for creation of scenarios of possible changes of a geo-ecological situation in various massif having harmful consequences, by identification of relationships of cause and effect. It was analyzed possibilities of prognosis of the changes of the geo-ecological situation in high-mountainous of Great Caucasus with use of the geological, geomorphologic, climate and landscape materials, data of digital processing of the photo images and visual observation. Also the possibilities of forecasting of change of landscape structure of highlands in natural area of Great Caucasus with use of various data were analyzed. It was defined the main differences of relief situation, hydro meteorological conditions in the various parts of high-mountainous geo systems?in which exogenic processes were shown, character and intensity of land using which had the influence to the slope slides. These data allowed revealing the main distinctions of factors of a relief situation?in which were shown exodynamic relief and landscape forming processes, character and intensity of the land use, to some extent influencing on descent of landslides and area of their destructive.
文摘厄尔布鲁斯山位于土耳其板块俯冲至西徐亚板块之下而形成的大高加索弧形构造带的弧顶部位,本身为晚更新世和全新世两个火山口组成的复式火山锥。厄尔布鲁斯山隆升过程和机制可划分为4 个阶段:中生代板块俯冲形成大高加索相对隆起区;新生代早期板块碰撞使大高加索成为强烈隆起区;新生代晚期发育了厄尔布鲁斯复式火山锥,并使之成为欧洲最高峰;许多迹象表明,厄尔布鲁斯火山现代并未熄灭,厄尔布鲁斯山以10 m m /a 的速度继续隆升。
文摘大高加索山脉位于黑海和里海之间,是欧洲与亚洲的分界线,该区域气候受到北大西洋涛动(North Atlantic Oscillation,NAO)的强烈影响。为了对该区域的大气降水δ^18O(δ^18OP)与NAO的关系有更加深入的认识,本文利用大高加索山以南6个全球降水同位素监测网(Global Network of Isotope in Precipitation,GNIP)站点的δ^18OP数据,分析该区域δ^18OP的季节变化规律,以及δ^18OP与温度和降水量等气象要素及大气环流之间的关系。得到以下主要认识:①在月时间尺度上,δ^18OP与月平均温度之间有着显著的正相关关系(p<0.01),表明该区域δ^18OP主要受当地温度控制,表现出“温度效应”。②北大西洋涛动通过改变西风的强度和位置从而影响δ^18OP的变化:当NAO呈现负相位时,此时西风输送较弱,使得来自地中海的富含18O的水汽能够达到大高加索山以南,该地区δ^18OP偏正。而当NAO正相位时,西风急流输送较强,从北大西洋穿越黑海带来更多的δ^18OP偏轻的降水。因此,NAO所导致的水汽输送路径的变化可能是影响大高加索山以南地区δ^18OP的重要因素,这一研究结果为利用该地区地质记录中的δ^18O记录来重建过去的NAO变化提供了前提。
