...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Estuaries and Coasts >Monitoring the Spatiotemporal Evolution of Sea Ice in the Bohai Sea in the 2009–2010 Winter Combining MODIS and Meteorological Data
【24h】

Monitoring the Spatiotemporal Evolution of Sea Ice in the Bohai Sea in the 2009–2010 Winter Combining MODIS and Meteorological Data

机译：利用MODIS和气象资料监测2009-2010年冬季渤海海冰的时空演变。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The spatiotemporal evolution of sea ice of Bohai Sea in the 2009–2010 winter was studied by time-series remote sensing data, and real-time meteorological data in combination with cumulative freezing degree days (CFDD). Sea ice acreage was determined using a ratio-threshold segmentation together with visual interpretation of daily MODIS 250 m imagery. We found the sea ice acreage soared to 31,849 km2 on January 23, covering 40.8% of the Bohai Sea. But on February 12, it reached 26,700 km2 in Liaodong Bay only, covering almost 90.0% of Liaodong Bay. The rapid formation and expansion of sea ice was caused by continuous cold snaps superimposed on a background of anomalously cold weather. CFDD calculated from surrounding cities highly correlated with sea ice acreage in Liaodong Bay (R 2 = 0.72) suggesting CFDD is one of the significant controlling factors. Sea ice expansion showed 7 days lag with respect to the lowest temperature from surrounding coastal cities, and it mainly occurred close to land, along the coastline, and gradually expanded from the shore outwards.
机译：利用时间序列遥感数据，实时气象数据结合累积冰冻日数（CFDD）研究了2009-2010年冬季渤海海冰的时空演化特征。使用比率阈值分割以及每日MODIS 250 m图像的视觉解释来确定海冰面积。我们发现，1月23日，海冰面积猛增至31,849 km2 ，覆盖了渤海的40.8％。但是2月12日，仅辽东湾就达到了26,700 km2 ，几乎覆盖了辽东湾的90.0％。海冰的迅速形成和膨胀是由于在异常寒冷的天气背景下叠加的连续冷突造成的。根据辽东湾与海冰面积高度相关的周边城市计算的CFDD（R 2 = 0.72）表明CFDD是重要的控制因素之一。海冰膨胀相对于周围沿海城市的最低温度而言存在7天的滞后性，主要发生在靠近海岸线的陆地上，并从海岸向外逐渐膨胀。

著录项

  • 来源
    《Estuaries and Coasts》 |2012年第1期|p.281-291|共11页
  • 作者

    Hua Su; Yunpeng Wang; Jingxue Yang;

  • 作者单位

    State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China;

    State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China;

    State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sea ice; MODIS 250 m imagery; Spatiotemporal evolution; Cumulative FDD; Bohai Sea;

    机译：海冰;MODIS 250m图像;时空演化;累积FDD;渤海;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号