Zobrazeno 1 - 10
of 138
pro vyhledávání: '"Masahiko Nagai"'
Autor:
Arnob Bormudoi, Masahiko Nagai, Gilbert Hinge, Vaibhav Katiyar, Dorj Ichikawa, Tsuyoshi Eguchi, Mohamed A. Hamouda
Publikováno v:
Geocarto International, Vol 39, Iss 1 (2024)
AbstractAssessing the impact of floods on crop cultivation is critical for ensuring food security and resilience in flood-prone regions. This study relied on cloud-free imagery from Landsat to construct six vegetation indices. These indices were used
Externí odkaz:
https://doaj.org/article/5e23e7e2b62e4e0290e2daacbcdb87bf
Autor:
Margad-Erdene Jargalsaikhan, Dorj Ichikawa, Masahiko Nagai, Tuvshintogtokh Indree, Vaibhav Katiyar, Davaagerel Munkhtur, Erdenebaatar Dashdondog
Publikováno v:
Remote Sensing, Vol 16, Iss 5, p 869 (2024)
Mongolia, situated in central Asia and bordered by Russia to the north and China to the south, experiences a semi-arid climate across most of its territory. Grasslands are pivotal in Mongolia’s agricultural sustainability and food security, facing
Externí odkaz:
https://doaj.org/article/970ef0af436543e2a21f92c7a3d32523
Publikováno v:
Mining, Vol 2, Iss 3, Pp 566-577 (2022)
Gold mining is a significant strategic sector for local, regional, and national economies. The rapid development of coexisting camp-type artisanal and small-scale gold mining (C-ASGM) and large-scale mining (LSM) accelerates the environmental and hea
Externí odkaz:
https://doaj.org/article/f982d68f718b46b7890d58c01953f7ea
Autor:
Satomi Kimijima, Masahiko Nagai
Publikováno v:
Remote Sensing, Vol 15, Iss 13, p 3436 (2023)
Mining-induced or enhanced geo-hazards (MGHs) pose significant risks in rural mountainous regions with underground mining operations by harming groundwater layers, water circulation systems, and mountain stability. MGHs occurring in naturally contami
Externí odkaz:
https://doaj.org/article/c995b222c7a84df4b5991bfa8869ac27
Publikováno v:
Land, Vol 12, Iss 5, p 1036 (2023)
In July 2015, more than 100 landslides caused by Cyclone Komen resulted in damage to approximately 1000 buildings in the mountainous region of Hakha City, Myanmar. This study aimed to identify potential landslide susceptibility for newly developed re
Externí odkaz:
https://doaj.org/article/48562d07c534400bbb1272fbb7b6b759
Publikováno v:
Land, Vol 12, Iss 2, p 506 (2023)
Understanding physical processes in nature, including the occurrence of slow-onset natural disasters such as droughts and landslides, requires knowledge of the change in soil moisture between two points in time. The study was conducted on a relativel
Externí odkaz:
https://doaj.org/article/8d1874890900450ab8406d4ef593dec0
Autor:
Satomi Kimijima, Masahiko Nagai
Publikováno v:
Remote Sensing, Vol 15, Iss 4, p 1099 (2023)
High spatiotemporal flood monitoring is critical for flood control, mitigation, and management purposes in areas where tectonic and geological events significantly exacerbate flood disasters. For example, the rapid lake shrinkage resulting from the t
Externí odkaz:
https://doaj.org/article/c9c31b0fc7444262a8a6a7cea64deea7
Publikováno v:
Remote Sensing, Vol 15, Iss 3, p 861 (2023)
Potentially toxic elements (PTEs) from natural and anthropogenic activities threaten the environment and human health. The associations of PTEs with natural hazards can be powerful and prominent mechanisms to release PTEs, considerably hastening thei
Externí odkaz:
https://doaj.org/article/0b0cb8232e8a44de9c7171beff07040a
Autor:
Dorj Ichikawa, Masahiko Nagai, Nopphawan Tamkuan, Vaibhav Katiyar, Tsuyoshi Eguchi, Yumiko Nagai
Publikováno v:
Remote Sensing, Vol 14, Iss 22, p 5717 (2022)
The utilization of multi-sensor and constellation satellite data with appropriate geometric and radiometric calibration and validation is required for effective satellite data applications for various monitoring tasks. In this paper, we present the r
Externí odkaz:
https://doaj.org/article/c5ac3bd1faca4bcbb30b4a820d084b40
Coastal Vulnerability Assessment of Bali Province, Indonesia Using Remote Sensing and GIS Approaches
Publikováno v:
Remote Sensing, Vol 14, Iss 17, p 4409 (2022)
Coastal zones are considered to be highly vulnerable to the effects of climate change, such as erosion, flooding, and storms, including sea level rise (SLR). The effects of rising sea levels endanger several nations, including Indonesia, and it poten
Externí odkaz:
https://doaj.org/article/601329c88098489ab4988105c179744b