Iwahashi et al. Progress in Earth and Planetary Science (2018) 5:13
https://doi.org/10.1186/s40645-018-0173-x

Progress in Earth andPlanetary Science

CORRECTION

Open AccessCorrection to: Global terrain classification
using 280 m DEMs: segmentation,clustering, and reclassification
Junko Iwahashi1*, Izumi Kamiya2, Masashi Matsuoka3 and Dai Yamazaki4
Correction
In the publication of this article (Iwahashi et al. 2018),
there was an error in Table 3 in terrain group 10, 11and 12.
The error: “natural level”.
Should instead read: “natural levee”.
This has now been updated in the original article(Iwahashi et al. 2018).
Author details
1
Geospatial Information Authority of Japan, Geography and Crustal Dynamics
Research Center, Kitasato 1, Tsukuba, Ibaraki 305-0811, Japan. 2Japan Digital
Road Map Association, Hirakawa 1-3-13, Chiyoda-ku, Tokyo 102-0093, Japan.
3Interdisciplinary Graduate School of Science and Technology, Tokyo Instituteof Technology, Nagatsuta 4259-G3-2, Midori-ku Yokohama, Kanagawa
226-8502, Japan. 4Institute of Industrial Science, The University of Tokyo,Tokyo, Japan.

Reference
Iwahashi J, Kamiya I, Matsuoka M et al (2018) Global terrain classification using280 m DEMs: segmentation, clustering, and reclassification. Prog Earth PlanetSci 5:1 https://doi.org/10.1186/s40645-017-0157-2* Correspondence: iwahashi-j96pz@mlit.go.jp
1
Geospatial Information Authority of Japan, Geography and Crustal Dynamics
Research Center, Kitasato 1, Tsukuba, Ibaraki 305-0811, Japan© The Author(s). 2018 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0
International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, andreproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link tothe Creative Commons license, and indicate if changes were made.

Iwahashi et al. Progress in Earth and Planetary Science (2018) 5:13

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Table 3 CRa and SCb of geomorphological and geological units for each terrain group in Japan
Terrain group

Landform element of JEGM

Geological unit of SDGM

1aMountain (84%), volcanoc (8%), others (8%)

Accretionary complex (30%), mafic volcanic rocks (Jurassic toPleistocene) (20%), plutonic rocks (Silurian to Middle Miocene)(13%), felsic volcanic rocks (9%), metamorphic rocks (9%) (× 2.3),others (19%)

1bMountain (53%), volcano (32%) (× 7.0),
volcanic footslope (9%), others (6%)

Mafic volcanic rocks (Jurassic to Pleistocene) (39%) (× 3.1),
accretionary complex (13%), Plutonic rocks (Silurian to MiddleMiocene) (10%), sediments (8%), felsic volcanic rocks (7%),
pyroclastic flow deposits (6%)

2aMountain (79%), others (21%)

Accretionary complex (25%), mafic volcanic rocks (Jurassic toPleistocene) (18%), plutonic rocks (Silurian to Middle Miocene)(13%), sediments (13%), felsic volcanic rocks (12%), sedimentaryrocks (Silurian to Middle Miocene) (7%), metamorphic rocks (6%),
others (6%)

2bMountain (70%), hill (9%), volcano (7%), others (14%)

Sediments (23%), accretionary complex (22%), mafic volcanic
rocks (Jurassic to Pleistocene) (17%), sedimentary rocks(Silurian to Middle Miocene) (13%) (× 2.3), felsic volcanic
rocks (9%), plutonic rocks (6%), others (10%)

3aMountain (36%), hill (23%), gravelly terrace (11%),valley bottom lowland (10%) (× 2.0),
volcanic footslope (5%), others (15%)

Sediments (38%), accretionary complex (13%), Plutonic rocks(Silurian to Middle Miocene) (12%), mafic volcanic rocks (Jurassicto Pleistocene) (9%), pyroclastic flow deposits (8%), sedimentaryrocks (Silurian to Middle Miocene) (7%), felsic volcanic rocks (7%),
others (6%)

3bHill (32%) (× 3.1), mountain (20%), gravelly terrace (10%),
volcanic footslope (9%), valley bottom lowland (8%),
terrace covered with volcanic ash soil (6%),
volcanic hill (6%) (× 2.4), others (9%)

Sediments (54%), pyroclastic flow deposits (13%) (× 2.3),
accretionary complex (7%), sedimentary rocks (Silurian to MiddleMiocene) (7%), mafic volcanic rocks (Jurassic to Pleistocene) (5%),
others (14%)

4Volcano (55%) (× 12.5), volcanic footslope(36%) (× 7.7), others (9%)

Mafic volcanic rocks (Holocene) (47%) (× 84.3), volcanic
debris (Miocene to Holocene) (21%) (× 12.6), mafic volcanicrocks (Jurassic to Pleistocene) (16%), pyroclastic flow deposits(8%), others (8%)

5Volcanic footslope (60%) (× 12.8), gravelly terrace (10%),terrace covered with volcanic ash soil (9%) (× 2.3),volcano (6%), others (15%)

Sediments (35%), volcanic debris (Miocene to Holocene)(23%) (× 13.9), pyroclastic flow deposits (18%) (× 3.1),
mafic volcanic rocks (Holocene) (14%) (× 25.8),
mafic volcanic rocks (Jurassic to Pleistocene) (7%), others (3%)

6

Terrace covered with volcanic ash soil (19%) (× 4.8),
gravelly terrace (16%) (× 2.4), valley bottom lowland(14%) (× 3.0), hill (12%), volcanic footslope (7%),
back marsh (7%) (× 2.5), alluvial fan (7%) (× 2.3),
delta and coastal lowland (5%) (× 3.1), others (13%)

Sediments (79%) (× 2.3), pyroclastic flow deposits (8%),
others (13%)

7

Gravelly terrace (29%) (× 4.2), terrace covered withvolcanic ash soil (14%) (× 3.5), hill (13%), alluvial fan(12%) (× 4.3), valley bottom lowland (10%) (× 2.2),
volcanic footslope (8%), others (14%)

Sediments (81%) (× 2.4), pyroclastic flow deposits (5%),
others (14%)

8

Terrace covered with volcanic ash soil (19%) (× 4.8),
alluvial fan (16%) (× 5.7), gravelly terrace (15%) (× 2.2),
back marsh (14%) (× 5.2),
delta and coastal lowland (8%) (× 4.7), others (28%)

Sediments (95%) (× 2.8), others (5%)

9

Alluvial fan (30%) (× 10.5), gravelly terrace (30%) (× 4.4),terrace covered with volcanic ash soil (16%) (× 4.1),
volcanic footslope (10%) (× 2.1), others (14%)

Sediments (86%) (× 2.5), pyroclastic flow deposits (5%),
others (9%)

10Back marsh (28%) (× 9.9), alluvial fan (22%) (× 7.5),
delta and coastal lowland (14%) (× 8.3), gravelly
terrace (8%), natural levee (7%) (× 11.2), others (21%)

Sediments (99%) (× 2.9), others (1%)

11

Back marsh (36%) (× 13.1), delta and coastal lowland(18%) (× 10.9), alluvial fan (12%) (× 4.3), natural levee(11%) (× 17.1), reclaimed land (6%) (× 13.3), others (17%)

Sediments (100%) (× 2.9)

12Back marsh (56%) (× 20.0), delta and coastal lowland(21%) (× 13.0), natural levee (14%) (× 21.0),
reclaimed land (7%) (× 14.7), others (2%)

Sediments (100%) (× 2.9)

Legends with CR of 5% or more are shown. Clusters with SC over × 2.0 are shown in bold text and the factors are in parentheses
aComposition ratiobspecialization coefficientclimited to Holocene volcano in JEGM