[物理海洋] 利用MODIS数据分析辽东湾海冰面积特征和气温关系

[复制链接]

摘要:利用MODIS卫星遥感数据反演得到2002—2017年辽东湾海冰面积资料,并分析了海冰面积的时空分布特征及年际变化特征。辽东湾初冰日出现在12月上中旬,终冰日出现在3月上中旬,个别年份出现在2月下旬。最大海冰日普遍出现在1月下旬或2月上旬,最大日海冰面积偏大的年份,冰期也相对偏长。进一步分析了辽东湾日海冰面积与营口气象站气温和气温积温(≤-4℃)的相关性,结果显示辽东湾海冰面积与二者均存在显著负相关关系。在此基础上利用回归分析方法建立了辽东湾海冰面积发展期和消融期的预报方程,并在2019/2020年度冬季进行检验。

关键词:辽东湾海冰面积;冰期;气温;积温;卫星遥感;MODIS

6 c+ a, B' g9 F' `3 N$ s8 W

Abstract:The sea ice area data in Liaodong Bay from 2002 to 2017 is obtained by using MODIS satellite data, and the characteristics of spatial and temporal distribution and annual variation of the sea ice area are analyzed in this paper. During these 16 years, the initial ice day in Liaodong Bay generally occurred in early or midDecember. The final ice day generally occurred in early or mid-March, except for several years in late February. The largest daily ice area occurred in late January or early February. The years with a larger ice area also had a relatively longer ice duration. Moreover, the ice area in Liaodong Bay shows a negative correlation with the air temperature and the accumulated temperature (≤ - 4℃). The regression analysis method is used to establish a prediction equation of the sea ice area in Liaodong Bay during the increasing and the thawing period, and is validated for the winter of 2019/2020.

Key words:sea ice area in Liaodong Bay; ice duration; air temperature; accumulated temperature; satellite remote sensing; MODIS

  U6 [9 M& [1 h$ h" Y

全文请用PC端下载    地址:

游客,如果您要查看本帖隐藏内容请回复

$ W# W, x/ N, B& p5 o( L
回复

举报 使用道具

相关帖子

全部回帖
暂无回帖,快来参与回复吧
懒得打字?点击右侧快捷回复 【吾爱海洋论坛发文有奖】
您需要登录后才可以回帖 登录 | 立即注册
季成
活跃在2022-11-7
快速回复 返回顶部 返回列表