PRECIPITATION USED AS KEY FACTOR IN TAPERED LINE BASED RIVER REPRESENTATION

IF 0.7 Q4 GEOGRAPHY, PHYSICAL

Geographia Technica Pub Date : 2020-10-17 DOI:10.21163/gt_2020.152.20

Zsolt Magyari-Saska

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引用次数: 1

Abstract

: GIS and cartography represent two different study areas but both of them share the map concept. Nowadays, most GIS software incorporates advanced representation and labeling possibilities, and thanks to the database, which is an essential component of any geoinformation system, there are multiple symbolization possibilities, using the stored data. Taking into account this symbiosis between the two components of modern GIS: analysis and advanced representation this study wants push further the cartographic possibilities of them taking advantage of their analysis and modelling part. Through this study we wanted to develop and test a method for river symbolization in which the river’s line width to be proportional with the average precipitation amount at every part of the river. The idea of this study came by working with hand drawn historical maps in which this type of representation is common and very suggestive. Although there are some interesting approaches which want to symbolize river courses based on data, this type of approach presented in this study has not been found. The result obtained from a situation where inaccuracies are inevitable due to very different data sources: a recent DEM with 25m resolution and a map from the beginning of the 20th century with scale of 1: 300000, has shown that this method based on modeling, analysis and GIS operations can be used successfully to have a more accurate, more real and eye catching symbolization of watercourses.

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降水量在基于渐缩线的河流表示中的关键因素

：地理信息系统和制图代表了两个不同的研究领域，但它们都有相同的地图概念。如今，大多数GIS软件都包含了先进的表示和标记可能性，由于数据库是任何地理信息系统的重要组成部分，使用存储的数据有多种符号化的可能性。考虑到现代GIS的两个组成部分：分析和高级表示之间的共生关系，本研究希望利用它们的分析和建模部分，进一步推动它们的制图可能性。通过这项研究，我们想开发和测试一种河流象征的方法，即河流的线宽与河流每个部分的平均降水量成比例。这项研究的想法来自于手工绘制的历史地图，在这些地图中，这种类型的表示很常见，也很有启发性。尽管有一些有趣的方法希望根据数据来象征河道，但本研究中提出的这种方法尚未找到。由于数据来源的不同，不可避免地会出现不准确的情况：最近的25米分辨率的DEM和20世纪初的30万比例尺的地图，结果表明，这种基于建模、分析和GIS操作的方法可以成功地用于更准确、更真实、更引人注目的水道符号化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Geographia Technica GEOGRAPHY, PHYSICAL-

CiteScore

2.30

自引率

14.30%

发文量

期刊介绍： Geographia Technica is a journal devoted to the publication of all papers on all aspects of the use of technical and quantitative methods in geographical research. It aims at presenting its readers with the latest developments in G.I.S technology, mathematical methods applicable to any field of geography, territorial micro-scalar and laboratory experiments, and the latest developments induced by the measurement techniques to the geographical research. Geographia Technica is dedicated to all those who understand that nowadays every field of geography can only be described by specific numerical values, variables both oftime and space which require the sort of numerical analysis only possible with the aid of technical and quantitative methods offered by powerful computers and dedicated software. Our understanding of Geographia Technica expands the concept of technical methods applied to geography to its broadest sense and for that, papers of different interests such as: G.l.S, Spatial Analysis, Remote Sensing, Cartography or Geostatistics as well as papers which, by promoting the above mentioned directions bring a technical approach in the fields of hydrology, climatology, geomorphology, human geography territorial planning are more than welcomed provided they are of sufficient wide interest and relevance.