Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Norifumi Hotta"'
Autor:
Nobuaki Tanaka, Yen-Jen Lai, Sangjun Im, Maznah Binti Mahali, Venus Tuankrua, Koichiro Kuraji, Fera Cleophas, Chatchai Tantasirin, Mie Gomyo, Chun-Wei Tseng, Katsushige Shiraki, Norifumi Hotta, Yuko Asano, Hiroki Inoue, Anand Nainar
Publikováno v:
Atmosphere, Vol 14, Iss 4, p 629 (2023)
In order to overview the impact of climate change on runoff from forested catchments over Asian countries, we collected water balance data from fifteen long-term catchment monitoring stations (total monitoring period 1975–2018, not continuous), spa
Externí odkaz:
https://doaj.org/article/4b97299fee6046a5965c94c3d1e29821
Publikováno v:
Frontiers in Earth Science, Vol 9 (2022)
The earthquake that occurred on 6 September 2018, in the eastern part of the Iburi region of Hokkaido, Japan (the Hokkaido Eastern Iburi Earthquake) caused thousands of shallow landslides in mountain areas. In areas where many landslides occurred, th
Externí odkaz:
https://doaj.org/article/ef8b2fcea32f4593b70975d020a854ef
Publikováno v:
Progress in Earth and Planetary Science, Vol 7, Iss 1, Pp 1-14 (2020)
Abstract Fluctuations in sediment storage arising from sediment discharge and recharge in headwater channels are an important factor influencing changes in landforms in mountainous areas, but the frequency of surveys is limited because of access diff
Externí odkaz:
https://doaj.org/article/defbde4ae8e2401a824e4cca8c04da64
Publikováno v:
Forum Geografi, Vol 35, Iss 2 (2021)
Internal temperature variations of pyroclastic flows and their deposits are arguably the most challenging data to acquire. As a preliminary study of the temperature variation inside pyroclastic flows, the remains of Onokoba Elementary School (Shimaba
Externí odkaz:
https://doaj.org/article/c6cdb2cb74624a87ac30e7e107358f7c
Publikováno v:
Forum Geografi, Vol 34, Iss 2 (2020)
In recent years, heavy rainfall leading to floods, landslides and debris-flow hazards have had increasing impacts on communities in Japan, because of climate change and structural immobilism in a changing and ageing society. Decreasing rural populati
Externí odkaz:
https://doaj.org/article/5ac383ff49d3436e885449107e7647c4
Autor:
Christopher Gomez, Yoshinori Shinohara, Haruka Tsunetaka, Norifumi Hotta, Balazs Bradak, Yuichi Sakai
Publikováno v:
Geosciences, Vol 11, Iss 11, p 457 (2021)
In the aftermath of pyroclastic density current-dominated eruptions, lahars are the main geomorphic agent, but at the decadal scale, different sets of processes take place in the volcanic sediment cascade. At Unzen volcano, in the Gokurakudani gully,
Externí odkaz:
https://doaj.org/article/8a8bae41fa3f498c91c413aa50eaef8a
Autor:
Christopher Gomez, Norifumi Hotta
Publikováno v:
Remote Sensing, Vol 13, Iss 17, p 3421 (2021)
On 6 September at 03:08 a.m. local time, a 33 km deep earthquake underneath the Iburi mountains triggered more than 7000 co-seismic mass movements within 25 km of the epicenter. Most of the mass movements occurred in complex terrain and became coales
Externí odkaz:
https://doaj.org/article/4f2fa5f1fbeb4cfcb834bdb86b1afd05
Publikováno v:
Earth Surface Dynamics. 10:775-796
Knowledge of how debris flows result in the fan-shaped morphology around a channel outlet is crucial for mitigation of debris-flow-related disasters and investigation of previous sediment transport from the upper channel. Therefore, using a flume con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2b2a61daadea6600b0dae4d93288fde
https://doi.org/10.5194/esurf-10-775-2022
https://doi.org/10.5194/esurf-10-775-2022
We present a grain-fluid mixture for debris flows moving on a rugged (non-trivial) topography, where entrainment and deposition may take place. The model equations are derived with respect to a terrain-following coordinate system, which is constructe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72c7dc2fe30a921c65c2f0ff87a16ba5
https://doi.org/10.22541/essoar.168332202.26045346/v1
https://doi.org/10.22541/essoar.168332202.26045346/v1
Publikováno v:
Proceedings of The 4th International Electronic Conference on Geosciences.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82d0f501de75f0b5543a29323d137c42
https://doi.org/10.3390/iecg2022-14265
https://doi.org/10.3390/iecg2022-14265