Kazuyoshi Asai
Biographic Data
| ID | 7513585 |
|---|---|
| NAME | Kazuyoshi Asai |
| GIVEN NAMES | Kazuyoshi |
| FAMILY NAME | Asai |
| SIGNATURE | ASAI K |
| AFFILIATIONS | Geo-Science Laboratory |
| ORCID | 0000-0002-7078-3560 |
| VERIFIED | Yes |
| TOTAL WORKS | 7 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 7 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2013 |
| LATEST PUBLICATION YEAR | 2021 |
| H-INDEX | 0 |
Groundwater age of spring discharges under changing permafrost conditions
Obtaining a better understanding of groundwater dynamics in permafrost zones is a critical issue in permafrost hydrology. This includes assessing the impacts of climate change on permafrost thaw and ground ice-melt. Both permafrost thaw and ground ice-melt can be related to groundwater discharges (i.e. spring discharges), and spring water is an important local water resource; accordingly, changes in these processes can have large impacts on local…
Interpreting Groundwater Chemistry and Estimating Residence Time of Groundwater in the Mt. Fuji Area Based on a Dissolution Kinetics-Fluid Flow Model and Chlorofluorocarbons (CFCs) Concentration
Relationships of concentrations of elements (Ca, Mg, Si) in groundwater from the Mt. Fuji area are obtained using analytical data on groundwater. Relationships of Ca, Mg, and H4SiO4 concentrations can be explained in terms of the dissolution of basaltic glass and precipitations of secondary minerals (halloysite, allophane, montmorillonite, and α-cristobalite). The relationship between residence time and H4SiO4 concentration of groundwater is obta…
Overview of the Special Issue “Groundwater in Mt. Fuji (Part 2)”
Preface for the Special Issue on “Groundwater in Mt. Fuji (Part 2)”
Analysing the origin of rain- and subsurface water in seasonal wetlands of north-central Namibia
We investigated the origins of rain- and subsurface waters of north-central Namibia’s seasonal wetlands, which are critical to the region’s water and food security. The region includes the southern part of the Cuvelai system seasonal wetlands (CSSWs) of the Cuvelai Basin, a transboundary river basin covering southern Angola and northern Namibia. We analysed stable water isotopes (SWIs) of hydrogen (HDO) and oxygen (H _2 ^18 O) in rainwater, surfa…
Monthly δ18O, δD and Cl− characteristics of precipitation in the Ndop plain, Northwest Cameroon
Estimation of the residence time of permafrost groundwater in the middle of the Lena River basin, eastern Siberia
Detection of changes in the hydrological cycles of permafrost regions is a critical issue in hydrology. Better understanding of groundwater dynamics in permafrost regions is needed to assess the vulnerability of the cryolithic water environment to changing climate. However, little is known about the age of groundwater in the Siberian Arctic region. In order to determine the residence time of permafrost groundwater in eastern Siberia, transient tr…
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Estimation of the residence time of permafrost groundwater in the middle of the Lena River basin, eastern Siberia
Detection of changes in the hydrological cycles of permafrost regions is a critical issue in hydrology. Better understanding of groundwater dynamics in permafrost regions is needed to assess the vulnerability of the cryolithic water environment to changing climate. However, little is known about the age of groundwater in the Siberian Arctic region. In order to determine the residence time of permafrost groundwater in eastern Siberia, transient tr…
Monthly δ18O, δD and Cl− characteristics of precipitation in the Ndop plain, Northwest Cameroon
Analysing the origin of rain- and subsurface water in seasonal wetlands of north-central Namibia
We investigated the origins of rain- and subsurface waters of north-central Namibia’s seasonal wetlands, which are critical to the region’s water and food security. The region includes the southern part of the Cuvelai system seasonal wetlands (CSSWs) of the Cuvelai Basin, a transboundary river basin covering southern Angola and northern Namibia. We analysed stable water isotopes (SWIs) of hydrogen (HDO) and oxygen (H _2 ^18 O) in rainwater, surfa…
Interpreting Groundwater Chemistry and Estimating Residence Time of Groundwater in the Mt. Fuji Area Based on a Dissolution Kinetics-Fluid Flow Model and Chlorofluorocarbons (CFCs) Concentration
Relationships of concentrations of elements (Ca, Mg, Si) in groundwater from the Mt. Fuji area are obtained using analytical data on groundwater. Relationships of Ca, Mg, and H4SiO4 concentrations can be explained in terms of the dissolution of basaltic glass and precipitations of secondary minerals (halloysite, allophane, montmorillonite, and α-cristobalite). The relationship between residence time and H4SiO4 concentration of groundwater is obta…
Overview of the Special Issue “Groundwater in Mt. Fuji (Part 2)”
Preface for the Special Issue on “Groundwater in Mt. Fuji (Part 2)”
Groundwater age of spring discharges under changing permafrost conditions
Obtaining a better understanding of groundwater dynamics in permafrost zones is a critical issue in permafrost hydrology. This includes assessing the impacts of climate change on permafrost thaw and ground ice-melt. Both permafrost thaw and ground ice-melt can be related to groundwater discharges (i.e. spring discharges), and spring water is an important local water resource; accordingly, changes in these processes can have large impacts on local…
Geology (7 works) · Geography (6 works) · Groundwater (6 works) · Environmental Science (5 works) · Groundwater and Isotope Geochemistry (5 works) · Aquifer (3 works) · Geology (3 works) · Geotechnical engineering (3 works) · Groundwater flow and contamination studies (3 works) · Hydrology (agriculture (3 works)