重点提示: (1)弱高压控制内陆地区,地表扩散条件较差; (2)北方空气污染加重,全国污染城市过半;
图1 2015年02月03日全国城市空气质量状况统计(数据来源:环保部数据中心)
天气形势:
3日广大内陆地区受弱高压控制,地表风力较弱,扩散条件差。北方新一轮冷空气蓄势待发,早8时前锋已到达内蒙境内。
图2 2015年02月03日地面天气图(08:00 UTC+8)和污染气象预报图 (图片来源:中央气象台)
预报回顾:
当日矮马全国AQI预报结果延续昨日趋势,北方污染进一步加重,与实测结果吻合,污染核心区域集中在华北平原地区。
图3 2015年02月03日AQI空气质量预报与实况比较(左:矮马预报;右:CNEMC数据平台)
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