海洋中的洋流

一张地理信息图,在平面世界地图上绘出全球洋流。暖流为红橙箭头,寒流为蓝色箭头,在各大洋中盘绕成巨大的环形洋流圈;主要洋流配小标签。大陆以扁平的浅沙色呈现,海洋为青色渐变。干净的地图矢量风格,隐约的波浪质感。顶部粗体标题「海洋中的洋流」,一个区分冷暖流向的图例,以温度计与罗盘小图标作点缀。

A geography infographic of global ocean currents drawn over a flat world map. Warm currents are red-orange arrows, cold currents are blue arrows, looping in great circular gyres across the oceans; key currents carry small labels. Continents are rendered in flat pale sand, ocean in a gradient teal. Clean cartographic vector style with a subtle wave texture. Bold title 'Rivers in the Ocean' at the top, a legend distinguishing warm and cold flow, small thermometer and compass icons as accents.