海拔3000米以下的冰川在2025年遭受的损失尤为严重。受损严重的冰川冰层厚度减少超过两米，冰川厚 度减少幅度较小的也有一米左右。 新华社日内瓦10月1日电（记者王娅楠）瑞士冰川监测项目（GLAMOS）和隶属于瑞士科学院的冰冻圈 观测委员会1日联合发布公报说，过去十年间，瑞士冰川的总体冰量减少了四分之一，超过1000座小型 冰川已完全消失。 公报说，2025年瑞士冰川体积减少约3%，是自开始测量以来第四大缩减幅度。缩减幅度排在前三位的 年份分别是2022年、2023年和2003年。 一个完整的冰川年一般从秋季开始，到次年夏末结束。公报说，尽管2025年是国际冰川保护年，但少雪 的冬季叠加6月和8月的热浪，导致瑞士冰川进一步大规模消融。冬季的积雪储备在7月上半月就已耗 尽，冰体开始融化的时间也罕见地早。 瑞士冰川监测项目负责人马蒂亚斯·胡斯在公报中说，冰川持续消融会导致山体不稳定，可能引发类似 伯奇冰川崩塌导致泥石流掩埋村庄事件。 据瑞士媒体5月报道，该国阿尔卑斯山区伯奇冰川发生崩塌，由泥浆、岩石和冰层组成的泥石流摧毁附 近的瑞士村庄布拉滕大部分区域，造成一人失踪。（完） ...

园方资料显示，冰川湾国家公园和保护区内有超过1000处冰川。 据佩尔托介绍，阿拉斯加州多处冰川近年不断消融，但是形成新岛的情况并不多见。 美联社当地时间18日报道，阿拉斯加州东南部冰川湾国家公园和保护区内原本有一座叫普罗山的小山， 其东部与阿尔塞克等冰川相连，西部紧邻阿尔塞克湖。随着阿尔塞克冰川消融，湖泊不断扩大，如今环 绕普罗山，以致形成新岛。小岛面积约5平方公里，最高点为300多米。 长期监测冰川动向的美国尼科尔斯学院冰川学家毛里·佩尔托说，他通过卫星图像注意到，小岛出现于 今年7月中下旬至8月上旬。 来源：央视新闻客户端 研究显示，随着美国阿拉斯加州一处冰川逐渐消融，当地形成了一座新的小岛。 ...

Core Points - The article discusses the first aerial survey of marine glaciers in Tibet, initiated by the Ministry of Natural Resources and the China Geological Survey, aimed at understanding the development and melting patterns of these glaciers [2][3][4] - The survey is conducted at the Renlongba Glacier, a significant marine glacier in Tibet, which is easily accessible and serves as a valuable resource for ecological research and geological exploration [3][4] - A comprehensive monitoring technology system integrating satellite remote sensing, helicopter aerial surveys, and ground investigations has been established to assess the glacier's extent, thickness, and changes [4][7] - The article highlights the rapid retreat of glaciers in China, with a reported overall reduction of approximately 26% in glacier area from the 1960s to 2020, and a significant acceleration in melting observed in recent years [8][10] - The glaciers in the Asian water tower region have experienced a 20% reduction in ice storage over the past 50 years, with projections indicating further significant losses by the end of the century under various climate scenarios [11][13] Group 1 - The first aerial survey of marine glaciers in Tibet aims to gather foundational data for natural resource management [2][4] - The Renlongba Glacier is chosen for its accessibility and ecological significance, allowing researchers to conduct detailed studies [3][4] - The survey employs a multi-faceted monitoring approach to accurately assess glacier conditions and changes [4][7] Group 2 - China's glaciers have shrunk by about 18% over the past 50 years, with a notable increase in melting rates in the last decade [8][10] - The Asian water tower glaciers are crucial for major rivers in Asia and have seen a 20% decrease in ice storage, with projections of further declines [11][13] - The melting glaciers pose risks of glacial lake outburst floods and other hazards, with significant implications for surrounding ecosystems and communities [14][15]