新疆的湖泊

中国最干、最热、最冷的地方都在新疆维吾尔自治区境内：中国最长的内陆河、最低的洼地、最大的沙漠也在新疆?在新疆不仅可以观赏到驰名中外的冰川雪峰、雅丹地貌、戈壁荒漠、风蚀蘑菇、洞穴、石林、草原森林以及沙漠中的海市蜃楼、飞沙鸣唱等独特的自然景观，同时还可以感受许多各具特色、风光如画的湖泊所带给您的美的震撼。     

Lambert冰川流域物质平衡和南极冰盖变化

对Lambert冰川流域的现场考察资料和浅冰芯研究结果显示,该流域东侧和西侧积累速率分布和过去几十年的变化具有明显差异:东侧平均积累速率较西侧高;近50年东侧处于增加状态,西侧则为明显减小.冰量平衡计算表明,该冰川流域目前处于物质正平衡状态,因而冰盖将趋于增厚.据现有资料估计分析,整个南极冰盖处于微弱负平衡.如果南极地区气候变暖,物质平衡将向正平衡方向发展,因而不会引起海平面上升.但是西南极冰盖的不稳定性可能随气候持续变暖而增强,成为引起海平面上升的最重要潜在因素.     

祁连山冷龙岭南麓的冰川序列,黄土记录和阶地系列的初步…

已经发现的冰川沉积和黄土记录证明冷龙岭至少经历了３次冰期的冰川作用，其中倒数第３次冰期与沉积黄土Ｌ４（或Ｌ５）的时期相当，其时冰川规模最大，随后各个冰期冰川规模逐渐小，即使在倒数第三次冰期，冰川末端也只在达冷龙陇南侧门源盆地的边缘，未能覆盖整个盆地形成冰盖。     

问：除了使冰川加速融化、海平面升高外，全球变暖的影响还有哪些？

全球变暖的影响远不止冰川融化和海平面升高，全球变暖甚至可以使地球面临物种大灭绝的威胁。     

Water isotope variations in the snow pack and summer precipitation at July 1 Glacier, Qilian Mountains in northwest China

This paper presents the stable isotope data of the snow pack and summer precipitation collected at the July 1 Glacier, Qilian Mountains in northwest China and analyses their relationships with meteorologi- cal factors. On an event scale, there is no temperature effect on the δ 18O values in the summer pre- cipitation, whereas the amount effect is shown to be clear. By tracing the moisture transport history and comparing the precipitation with its isotopic composition, it is shown that this amount effect not only reflects the change in moisture trajectory, which is related to the monsoon activities, but is also associated with the cooling degree of vapor in the cloud, the evaporation of falling raindrops and the isotopic exchange between the falling drops and the atmospheric vapor. As very little precipitation occurs in winter, the snow pack profile mainly represents the precipitation in the other three seasons. There are low precipitation δ 18O ratios in summer and high ratios in spring and autumn. The Meteoric Water Line (MLW) for the summer precipitation is δ D = 7.6 δ 18O 13.3, which is similar to that at Delingha, located in the south rim of the Qilian Mountains. The MWL for the snow pack is δ D = 10.4 δ 18O 41.4, showing a large slope and intercept. The deuterium excess (d) of the snow pack is positively correlated with δ 18O, indicating that both d and δ 18O decrease from spring to summer and increase from early autumn to early spring. This then results in the high slope and intercept of the MWL. Sea- sonal fluctuations of d in the snow pack indicate the change of moisture source and trajectory. During spring and autumn, the moisture originates from continental recycling or rapid evaporation over rela- tively warm water bodies like Black, Caspian and Aral Seas when the dry westerly air masses pass over them, hence very high d values in precipitation are formed. During summer, the monsoon is responsi- ble for the low d values. This indicates that the monsoon can reach the western part of the Qilian Mountains.     

西昆仑山崇测冰帽温度分布研究

冰川温度场研究具有气候学意义,尤其在缺乏气象台站的地区更是如此。崇测冰帽位于藏西北高原,东经81°、北纬35°、顶部海拔6580m。1987年8月,沿冰帽主流线,从海拔6366—5950m作者对六个冰岩芯钻孔及旁边雪坑进行了冰温测量.在海拔6328m的S12岩芯孔内7—8m深处测到一16.4℃的冰温,为我国目前测到的最低冰温.本文拟在前人研究基     

纳木错流域扎当冰川径流对气温和降水形态变化的响应

报道西藏纳木错湖南岸念青唐古拉山脉北坡扎当冰川2007/2008年的径流年际大变化并分析其成因. 与2007年夏半年相比, 2008年同期降水量增加了17.9%, 流域径流量却减少了33.3%, 由此得出冰川消融量减少了53.8%. 利用通常的度日模型分析发现, 大气正积温的变化只能解释约一半的冰川消融量年际差, 说明该冰川对气温变化异常敏感. 能量平衡分析显示, 冰川表面反照率的改变造成了冰川消融量的年际重大差异. 而反照率的改变主要是由降水形态的差异造成的. 统计得出, 2007年夏半年冰川末端以降雨为主, 降雨量占降水总量的71.5%; 相反, 2008年以降雪为主, 降雨量仅占30.7%. 说明在对某些冰川进行气候变化的敏感性分析或径流预测时, 降水形态是需要单独考虑的一个因素.     

四名中国人入选“地球卫士”

冰川融化，森林消失，极端天气肆虐，这些都使“环保”成为世界热门议题。那么．哪些人有能力改变这一现状？哪些环保先锋能够给出根本的解决方案？哪些政治家们有能力推动整个社会和工业生产改变目前的行为方式？     

十年来我国冰川物理学的进展

现代意义上的冰川物理学到了本世纪八十年代才在我国出现。这时,天山冰川观测站恢复工作并走向现代化,加强了对外交流,一批出国学习学者回国开展自己的研究,冰川物理学在国内发展才具备物质和人才条件,在冰雪热力学、冰川动力学和冰的再结晶研究方面取得了一定的进展。现简述于后。