印尼抗灾署在南苏门答腊投放2.4吨干冰驱霾 Palembang机场能见度回升至3000米
雅加达——印度尼西亚国家抗灾署（BNPB）10月17日表示，该署于10月15日至16日在南苏门答腊省上空投放2.4吨干冰开展人工影响天气作业，以驱散林火与土地火灾造成的浓重烟霾。
BNPB 数据、信息与通讯中心代理主任 Berton Panjaitan 在声明中说，两天作业共飞行3架次、总时长7小时3分钟，重点覆盖 Palembang 的 Sultan Mahmud Badaruddin II 国际机场周边，该机场此前因浓霾导致航班受扰。作业期间，机场能见度由1,000米提升至最高3,000米。Berton 表示，能见度改善是否由干冰所致仍需进一步研究；干冰正被测试为一种替代驱霾方法，通过削弱把烟雾困在近地面的大气条件，让烟霾上升消散。
印度尼西亚气象、气候与地球物理局（BMKG）另行表示，林火烟雾10月16日一度飘抵大雅加达地区上空，17日已开始移散，未见影响地面空气质量的证据。南苏门答腊是印尼六个林火防控重点省份之一，截至10月16日晚，该省录得189个高置信度热点。
信息来源：印度尼西亚国家抗灾署（BNPB）、印度尼西亚气象、气候与地球物理局（BMKG）
Indonesia Drops 2.4 Tonnes of Dry Ice over South Sumatra to Disperse Haze; Visibility at Palembang Airport Improves to 3,000 Metres
JAKARTA — Indonesia's National Disaster Management Agency (BNPB) said on October 17 that it deployed 2.4 tonnes of dry ice over South Sumatra province on October 15-16 in a weather modification operation to disperse thick haze from forest and land fires.
Berton Panjaitan, acting head of BNPB's Disaster Data, Information and Communication Centre, said in a statement that the two-day operation involved three flights totalling seven hours and three minutes, initially focusing on the area around Sultan Mahmud Badaruddin II International Airport in Palembang, where thick haze had disrupted flights. Visibility at the airport improved from 1,000 metres to as much as 3,000 metres during the operation, though he said further research is needed to determine whether the improvement was caused by the dry ice or other weather factors. Dry ice is being tested as an alternative method to disperse haze by weakening the atmospheric conditions that trap smoke near the ground.
The Meteorology, Climatology and Geophysics Agency (BMKG) said in a separate statement that smoke from forest and land fires briefly reached the atmosphere over Greater Jakarta on October 16 but had begun moving away on October 17, with no evidence of an impact on ground-level air quality. South Sumatra is among six provinces prioritised by Indonesia for forest and land fire prevention and response, with 189 high-confidence hotspots recorded in the province as of October 16.
Sources: BNPB; BMKG
来源：GSM·美国（原文链接）
图片来源：南苏门答腊省 Palembang 的 Ampera 大桥与穆西河。Photo by Firzafp, Wikimedia Commons, CC BY 4.0.
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