Reykjavik is a smokeless city. Almost 100% of the electricity and the heating depends upon hydropower and geothermal energy.| J-STAGE
Gullfoss waterfall. The two-step cataract has a total drop of 32 m.| J-STAGE
Lakagigar fissure eruption. The 1783-84 Laka- gigar eruption resulted in a great famine, due to which Iceland lost 20% of its population.| J-STAGE
Earth hummock. Earth hummocks are among the periglacial phenomena. The knoll covered with vegetation is |about 0.5 m high.| J-STAGE
Jokulsarlon lagoon. The Breidamerkurjokull glacier has been retreating since about 1920. The lagoon formed at the glacial front shows a yearly increase.| J-STAGE
The braided course of the Jokulfell downstream from Hofsjokull.| J-STAGE
Geyser Strokkur. The geyser erupts at 5-10 minute intervals.| J-STAGE
Palagonite ridge formed by subglacial eruption. Langjokull glacier in the background.| J-STAGE
Normal fault at Thingvellir. The boundary between the North American plate on the left-hand side and the Eurasian to the right.| J-STAGE
Dettifoss waterfall. The waterfall is 44 m high. The river water is rich in suspended sediments and the waterfall volume is the greatest in Iceland.| J-STAGE
Valley of Eldgja. The 934-40 Eldgja eruption occurred along a 75 km-long fissure.| J-STAGE
Basaltic lava field, the Svartshengi geothermal power plant (right), and the Blue Lagoon (left).| J-STAGE

Latest Issue

Journal of Geography (Chigaku Zasshi), 2020 Vol.129 No.2

2020 Vol.129 No.2

Cover Page Map: Inoh’s Small-scale Map from the Collection of the Tokyo National Museum

“Dainippon Enkai Yochi Zenzu” (General Coastal Map of Great Japan), which was based on Inoh’s nationwide survey and submitted to the government in 1821, is classified into three categories by map scale: two hundred and fourteen sheets of large-scale map (1:36000), eight sheets of medium-scale map (1:216000), and three sheets of small-scale map (1:432000). The original “Dainippon Enkai Yochi Zenzu” was destroyed by a fire at the Imperial Palace in 1873. However, some duplicate maps have been preserved. The map on the cover is a duplicate small-scale map from the collection of the Tokyo National Museum. This map was delivered to Shoheizaka Gakumonjo (Governmental College) by Tenmongata (the director of astronomical observatory of the government) Takahashi Kageyasu. The map is designated an important national cultural property.

(Maps: Tokyo National Museum; Explanation: Yoshihisa HOSHINO)

Special Issue: Inoh Tadataka

Overview: On Editing the Special Issue of “Inoh Tadataka”

Yoshihisa HOSHINO

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 149.

DOI:10.5026/jgeography.129.149

On Editing the Special Issue of “Inoh Tadataka”

Yoshihisa HOSHINO

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 155.

DOI:10.5026/jgeography.129.155

Scholarly Contacts Accompanying the Survey Projects of Inoh Tadataka
　(Review Article)

Junko SUZUKI

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 161.

DOI:10.5026/jgeography.129.161

The Santo Hoiki of Inoh Tadataka (Short Article)

Hiroyuki KONNO

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 181.

DOI:10.5026/jgeography.129.181

Utilization of Inoh Maps for Nautical Charting:
　Focusing on British Admiralty Charts that Propagated the Outline of Japan
　and Its Location on World Maps (Review Article)

Kunio YASHIMA

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 195.

DOI:10.5026/jgeography.129.195

Spatial Analysis of Inoh’s Map Using GIS with the Focus on National Land Changes
　over 200 Years in Japan (Short Article)

Yuki IWAI, Yuji MURAYAMA and Kota INOHARA

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 215.

DOI:10.5026/jgeography.129.215

Some Issues Raised by Inoh Tadataka’s Nationwide Survey (Review Article)

Yoshihisa HOSHINO

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 227.

DOI:10.5026/jgeography.129.227

Inoh Tadataka’s Land-survey Expeditions in Japan
　and His Astronomical Observations (Original Article)

Tsuko NAKAMURA

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 241.

DOI:10.5026/jgeography.129.241

Lunar Eclipses Observed by Inoh Tadataka and the Longitude (Short Article)

Michio NOGAMI

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 263.

DOI:10.5026/jgeography.129.263

Meridian Arc Length Obtained by Inoh Tadataka
　and Uncertainty Associated with the Survey:
　Based on Data in “Sokuchidosetu” (Original Article)

Masaru KAIDZU

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 275.

DOI:10.5026/jgeography.129.275

Scale Factor of Latitude Distance in Surveying and Mapping by Inoh Tadataka
　(Original Article)

Michio NOGAMI

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 285.

DOI:10.5026/jgeography.129.285

Questions about the Map Projection of Inoh’s Map (Original Article)

Takehide HISHIYAMA

Journal of Geography (Chigaku Zasshi), 2020, 129(2), 303.

DOI:10.5026/jgeography.129.303

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