Morphometric Mapping of Topography by Flowline Hachures

Samsonov, T.

Автор: Samsonov Timofey
Журнал: Cartographic Journal
Том: 51
Номер: 1
Год издания: 2014
Издательство: Maney Publishing
Местоположение издательства: United Kingdom
Первая страница: 63
Последняя страница: 74
DOI: 10.1179/1743277413Y.0000000036
Аннотация: Hachuring is a classic method of cartographic relief presentation that origins from perspective sketching of the surface. Hachuring was developed into strict and mathematically grounded planimetric method during the eighteenth century. Established by Lehmann in 1799, topographic hachures flourished during the first half of the nineteenth century and then were gradually replaced by contours. Today, hachures are still popular in presentation of anthropogenic relief on archaeological and topographic maps. Some elements of hachuring can be found in geomorphometric and hydrometeorological mapping, where flowlines and arrows are used to show the intensity and direction of the flow on the surface, or its aspect and slope. The study aims to reveal the potential of hachuring in further development as surface presentation method. Automated implementation of all original requirements for hachure construction is provided for the first time by new algorithm using vector flowlines. Then an advanced hachuring technique called ‘slope and aspect hachuring’ is presented which depicts slope, aspect and flow direction of the surface simultaneously. Slope and aspect hachuring is compared to traditional area colours to reveal its advantages and shortcomings in sight of morphometric mapping. Some applications of the method and directions of future research are suggested in concluding part.
Добавил в систему: Самсонов Тимофей Евгеньевич

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