高一地理必须修读1水循环与洋流洋流—湘教版ppt.ppt

Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 纽芬兰海域 大 西 洋 印度洋 太平洋 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. “泰坦尼克号”首航没有进入北极海区，那么，使船沉没的冰山是怎样进入纽芬兰海域的呢？ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 1.概念：海洋水沿? 作大规模运动的现象 相对稳定的方向 暖流 寒流 风海流 补偿流 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 3、洋流的主要成因 近地面风带 风海流 例如：东北信风 北赤道暖流 东南信风 南赤道暖流 西风带 西风漂流 提示1：南北半球的西风漂流性质有什么不同？为什么？ 提示2：南北半球的大洋环流是否完整？ 对照课本62页的图2—41思考：此图哪些地方需要修改和补充的？ Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 在记忆世界各洋流的分布时，可把洋流模式想像成分数式“8/0”：中间分数线为赤道，分子“8”，按笔顺代表北半球大洋环流及洋流流向；分母“0”，按笔顺代表南半球大洋环流及洋流流向(南半球中高纬度没有形成环流)。如下图所示： Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 分布规律 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 分布规律 北赤道暖流 南赤道暖流 西风漂流 西风漂流 顺时针 逆时针 逆时针 大西洋 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 考点突破 1．世界洋流分布 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 拓展　北印度洋海区冬、夏季环流系统的区别 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. （1）中低纬度海区： 以副热带海区为中心的大洋环流 北顺南逆(反气旋) 东寒西