Himawari-8气象卫星黄海浒苔动态监测

发布时间：2018-06-23 03:03

本文选题：Himawari- + 黄海　；参考：《应用气象学报》2017年06期

【摘要】：基于Himawari-8气象卫星数据,研究了利用归一化植被指数提取浒苔信息方法,并提出了浒苔强度和移动速度估算方法。对2016年5-7月黄海海域浒苔信息进行监测,获得了浒苔暴发的时间、地点、面积、强度、影响范围、漂移路径及移动速度。结果表明:2016年5月19日Himawari-8气象卫星首次监测到黄海海域出现浒苔信息;6月中下旬进入暴发期,浒苔面积、影响范围及强度达到最大值;7月上旬,伴随着浒苔大面积登陆青岛、烟台、威海等地,浒苔进人缓慢消亡阶段。多时次浒苔强度合成产品显示:2016年浒苔在黄海中部海域、烟台以东海域覆盖强度较大,在初始位置一带覆盖强度较小。浒苔漂移路径整体为从东南外海逐渐开始向西北近海海域靠近,日移动速度不断变化。浒苔的动态变化与水文气象环境密切相关,适宜的温度是浒苔生长和发展的基础,浒苔出现后,盛行风向是浒苔漂移方向的主要驱动力,2016年5-7月强劲的南风使浒苔一直向北漂移,并最终抵达威海,浒苔的移动与风向大致相同。
[Abstract]:Based on Himawari-8 meteorological satellite data, the method of extracting information of Enteromorpha margin by normalized vegetation index was studied, and the estimation method of intensity and moving speed of Enteromorpha margin was put forward. The time, location, area, intensity, influence range, drift path and moving speed of the outbreak of Enteromorpha enteromorpha were obtained by monitoring the information of Enteromorpha enteromorpha in the Huang Hai sea area from May to July 2016. The results showed that the information of Enteromorpha enteromorpha appeared in the Huang Hai sea area for the first time on May 19, 2016 by Himawari-8 meteorological satellite. In the middle and late June, the area, area and intensity of Enteromorpha enteromorpha reached the maximum. In the first ten days of July, with the large-scale landing of Enteromorpha enteromorpha in Qingdao, Yantai, Weihai and other places, enteromorpha entered the stage of slow extinction. The results showed that in 2016, the intensity of Enteromorpha enteromorpha in the middle of Huang Hai was higher than that in the east of Yantai, but the intensity in the initial position was small. The drift path of Enteromorpha enteromorpha is gradually approaching to the offshore waters of northwest China from the southeast sea, and the daily moving velocity is constantly changing. The dynamic changes of Enteromorpha margin are closely related to the hydrometeorological environment. The suitable temperature is the basis for the growth and development of Enteromorpha margin. The prevailing wind direction is the main driving force of the drift direction of Enteromorpha margin. The strong south wind from May to July 2016 makes the Enteromorpha enteromorpha drift northward and finally reaches Weihai. The movement of Enteromorpha enteromorpha is approximately the same as that of the wind.
【作者单位】：国家卫星气象中心;山东省气候中心;
【基金】：科技部全球变化及应对专项(2016YFA0600101)
【分类号】：X834;X87

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