Geospatial Analysis of the Non-Surveyed (Estimated) Coastlines in Inoh’s Map, 1821
The history of modern maps in Japan began with Inoh’s map that was made by surveying the whole of Japan on foot 200 years ago. Inoh’s team investigated coastlines, major roads, and geographical features such as rivers, lakes, temples, forts, village names, etc. The survey was successively conducted...
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doaj-4f6356bf16e746a797b259b93ec8b4982021-09-26T00:21:44ZengMDPI AGISPRS International Journal of Geo-Information2220-99642021-08-011058058010.3390/ijgi10090580Geospatial Analysis of the Non-Surveyed (Estimated) Coastlines in Inoh’s Map, 1821Yuki Iwai0Yuji Murayama1Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, JapanFaculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, JapanThe history of modern maps in Japan began with Inoh’s map that was made by surveying the whole of Japan on foot 200 years ago. Inoh’s team investigated coastlines, major roads, and geographical features such as rivers, lakes, temples, forts, village names, etc. The survey was successively conducted ten times from 1800 to 1816. Inoh’s map is known as the first scientific map in Japan using a systematic method. However, the actual survey was conducted only for 75% of the coastlines in Japan and the remaining 25% was drawn by Inoh’s estimation (observation). This study investigated how the non-surveyed (estimated) coastlines were distributed in the map and why the actual survey was not conducted in these non-surveyed coastlines. Using GIS, we overlaid the geometrically corrected Inoh’s map (Digital Inoh’s Map Professional Edition) with the current map published by the Geospatial Information Authority (GSI) of Japan for examining the spatial difference. We found that the non-surveyed coastlines were in places where the practice of actual surveying was topographically difficult because of the limited surveying technology of those days. The analytical result shows that 38.6% of the non-surveyed coastlines were cliffs, 25.7% were rocky beaches, and 6.2% were wetlands and tidal lands (including rice fields and tidal flats).https://www.mdpi.com/2220-9964/10/9/580Inoh’s maphistorical mapscoastlinesterrainland usehistorical GIS |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yuki Iwai Yuji Murayama |
spellingShingle |
Yuki Iwai Yuji Murayama Geospatial Analysis of the Non-Surveyed (Estimated) Coastlines in Inoh’s Map, 1821 ISPRS International Journal of Geo-Information Inoh’s map historical maps coastlines terrain land use historical GIS |
author_facet |
Yuki Iwai Yuji Murayama |
author_sort |
Yuki Iwai |
title |
Geospatial Analysis of the Non-Surveyed (Estimated) Coastlines in Inoh’s Map, 1821 |
title_short |
Geospatial Analysis of the Non-Surveyed (Estimated) Coastlines in Inoh’s Map, 1821 |
title_full |
Geospatial Analysis of the Non-Surveyed (Estimated) Coastlines in Inoh’s Map, 1821 |
title_fullStr |
Geospatial Analysis of the Non-Surveyed (Estimated) Coastlines in Inoh’s Map, 1821 |
title_full_unstemmed |
Geospatial Analysis of the Non-Surveyed (Estimated) Coastlines in Inoh’s Map, 1821 |
title_sort |
geospatial analysis of the non-surveyed (estimated) coastlines in inoh’s map, 1821 |
publisher |
MDPI AG |
series |
ISPRS International Journal of Geo-Information |
issn |
2220-9964 |
publishDate |
2021-08-01 |
description |
The history of modern maps in Japan began with Inoh’s map that was made by surveying the whole of Japan on foot 200 years ago. Inoh’s team investigated coastlines, major roads, and geographical features such as rivers, lakes, temples, forts, village names, etc. The survey was successively conducted ten times from 1800 to 1816. Inoh’s map is known as the first scientific map in Japan using a systematic method. However, the actual survey was conducted only for 75% of the coastlines in Japan and the remaining 25% was drawn by Inoh’s estimation (observation). This study investigated how the non-surveyed (estimated) coastlines were distributed in the map and why the actual survey was not conducted in these non-surveyed coastlines. Using GIS, we overlaid the geometrically corrected Inoh’s map (Digital Inoh’s Map Professional Edition) with the current map published by the Geospatial Information Authority (GSI) of Japan for examining the spatial difference. We found that the non-surveyed coastlines were in places where the practice of actual surveying was topographically difficult because of the limited surveying technology of those days. The analytical result shows that 38.6% of the non-surveyed coastlines were cliffs, 25.7% were rocky beaches, and 6.2% were wetlands and tidal lands (including rice fields and tidal flats). |
topic |
Inoh’s map historical maps coastlines terrain land use historical GIS |
url |
https://www.mdpi.com/2220-9964/10/9/580 |
work_keys_str_mv |
AT yukiiwai geospatialanalysisofthenonsurveyedestimatedcoastlinesininohsmap1821 AT yujimurayama geospatialanalysisofthenonsurveyedestimatedcoastlinesininohsmap1821 |
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