The port of Kollam (Quilon) in Kerala had been an important trading centre for many centuries. Its significance as a landing point for traders is evident from its colonial history when there were repeated attempts to take over possession of this location. Being an important site, Kollam was frequently mapped by Europeans from the sixteenth to nineteenth centuries. The historical maps and views of Kollam contain vital information about the history, archaeology and geography of the area. Remote sensing and GIS can provide a real-world spatial context to these archived geographical documents of varied scales and types, drawn at different times spanning more than four centuries. The present study harnesses the potential of RS and GIS in integrating information present in the maps of such heterogeneous nature to advance the historical and archaeological knowledge of the Kollam fort. The integration of the maps of the different time, scale and style with the help of RS and GIS yielded information that was previously unknown. The present study has discovered the extant remains of the Portuguese and the Dutch fort that were not identified before and contributed to the scholarship on the construction, restoration, the extent and usage of the fort during its occupation by various European powers.

中文翻译：

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科拉姆堡历史地图数据地理空间分析

几个世纪以来，喀拉拉邦的科拉姆港（Quilon）一直是重要的贸易中心。它作为商人登陆点的重要性从它的殖民历史中可以明显看出，当时人们一再试图接管这个地方。作为一个重要的遗址，从 16 世纪到 19 世纪，欧洲人经常绘制科拉姆的地图。Kollam 的历史地图和景观包含有关该地区历史、考古和地理的重要信息。遥感和 GIS 可以为这些不同规模和类型的存档地理文件提供真实世界的空间背景，这些文件是在四个多世纪的不同时间绘制的。本研究利用 RS 和 GIS 在整合此类异质性地图中存在的信息方面的潜力，以推进 Kollam 堡垒的历史和考古知识。在 RS 和 GIS 的帮助下，不同时间、比例和样式的地图的整合产生了以前未知的信息。本研究发现了葡萄牙和荷兰堡垒的现存遗迹，这些遗迹以前未被发现，并有助于研究该堡垒在欧洲各列强占领期间的建造、修复、范围和使用情况。