OB & OG

Fukushima University

Watershed Hydrology Group in Graduate School of Symbiotic Systems Science & Faculty of Symbiotic Systems Science

(FY2010-2021, 64 members in total [ = 56 Bachelors +7 Masters+1 Doctor］)

Research staff

April 2020-May 2022

  1. Chris LEONG, currently at Research Institute for Humanity and Nature (RIHN)


Doctoral course

FY2017-2019

  1. Chris LEONG : Estimating and understanding flow duration curves from climatic conditions and dominant rainfall-runoff processes of a catchment


Master course

FY2016-2017

  1. Hidemi TAKAHASHI : Estimating watershed-scale carbon flow in terms of satellite-based estimation of carbon fixation and field-based estimation of carbon outflow in river water.


FY2015-2016

  1. Yudai SHIKANO : Investigating storage-discharge mechanisms of 137Cs in a catchment area of waste water treatment plant in Fukushima.

  2. Takahiko CHIBA : Estimating watershed-scale water storage in the mountainous areas of Kyushu region, Japan.


FY2013-2014

  1. Syuhei KOBAYASHI : Catchment-scale preciptation recharge and storage change in headwater catchments

  2. Yasuyoshi WATANABE : Surface water measurements and monitorings at the Goshiki-numa ponds in the Bandai-Asashi National Park, Japan.


FY2011-2012

  1. Nagomu KOMATSU : What controls the shape of flow duration curves of the world?


Bachelor course

FY2021

  1. Ryoya KIMURA: Understanding the mechanisms spatial scale dependence of rainfall-runoff processes

  2. Mayu TATENO: Estimating balance and transport of suspended sediments in Japanese first class river watersheds

  3. Shintaro TOMIYAMA: Estimating suspended sediment production by grain size in a mountainous watershed

  4. Rena BANNAI: Estimation of rainfall-runoff processes and water quality formation mechanisms using river discharge and water quality data


FY2020

  1. Chiharu Oshikiri : Modeling of daily forest fire occurrence probability at 1-km grid level in Japan

  2. Keita Onodera : Estimating carbon balance and dynamics in ungauged basins

  3. Yudai Kuwabara : Verifying estimation method of flow duration curves in ungaged basins

  4. Haruki Goto : A preliminary study on the controlling factors of channel networks based on the principle of maximum entropy production

  5. Koichiro Hayano : Data-based modeling of dominant rainfall-runoff processes in small river watersheds

  6. Taketo Mizukami : Identifying dominant rainfall-runoff processes and water quality generation mechanisms in Higashi-karasu river watershed


FY2019

  1. Kentaro KAMIO : Estimation and validation of Japanese forest fire frequency by using satellite data.

  2. Takeshi SAKAIRI : Investigating generation mechanisms of spatial representativeness in river flow variability by using identification method of dominant rainfall-runoff process.

  3. Hikaru SATO : Developing an estimation method of slope-failure occurrence by using water-level data.

  4. Shunya FURUKAWA : Relationship between dominant rainfall-runoff mechanisms and water quality in Higashi-karasu river watershed.

  5. Ryota MUROI : Estimating carbon balance and outflow variability in Higashi-karasu river watershed.

  6. Yuki YOKOYAMA : Investigating governing rules and geometric representation of channel network structure.


FY2018

  1. Ren IWASAKI : Predicting forest fire frequency under climate change.

  2. Susumu SAITO : Estimating carbon balance of Higashi-karasu river watershed.

  3. Kaede SUZUKI: Estimating rainfall-runoff processes and water quality generation mechanisms.

  4. Kohei YOKOYAMA : Spatial scale dependency and representativeness of rainfall-runoff processes.


FY2017

  1. Itsuki HONDA : Estimating mechanisms behind spatial scale dependency of rainfall-runoff processes.

  2. Susumu MATSUMOTO : National scale mapping of rainwater recharge by using inverse estimation of rainfall-runoff processes.

  3. Kaoru YOSHIDA .: Snow-accumulation and snow-melt modeling by using inverse estimation of rainfall-runoff processes.

  4. Naoto YUSA : Satellite-based estimation of forest fire occurrences in Japan.


FY2016

  1. Eito HASEGAWA : Investigating the relationship between watershed-scale water storage and the occurrences of sediment disaster in Japan.

  2. Hidenori NAGANO : Relationship between river water quality and rainfall-runoff mechanisms in Higashi-karasu river watershed, Fukushima, Japan.

  3. Hotaru OSHIKIRI : Estimating forest fire occurrences in terms of physiographic conditions in Japan.


FY2015

  1. Shintaro ABE : Slope failure potential and watershed-scale storage of rainfall.

  2. Ryo HASUNUMA : Model-based study on the increasing pH in the Lake Inawashiro.

  3. Akira KATO : Scale dependency in rainfall-runoff modeling.

  4. Junya KANNO : Forest fire occurrence and its statistical causes.

  5. Koki MINAKAWA : Exploring water quality tracers of inflow to the Bishamon pond, Urabandai, Japan.

  6. Atsushi SUGAWARA : Monitoring and modeling of inflow to the Bishamon pond, Urababdai, Japan.


FY2014

  1. Takahiko CHIBA : Estimating watershed-scale rainfall storage.

  2. Daiki FUJIMOTO : Rainfall-runoff process identification by means of discharge monitoring and data analysis.

  3. Shoya HIROSE : Rainfall-runoff process identification by means of water quality monitoring and data analysis.

  4. Yushi KANNO : Reducing model structural uncertainty in rainfall runoff modeling.

  5. Yudai SHIKANO : An advection-diffusion model of Cs-137 in Fukushima.


FY2013

  1. Kentaro HAGA : Toward identification of structure and parameter of rainfall-runoff model by using hydrograph separation.

  2. Kenshu HARADA : Exploring the relationships between physiographic characteristics and shapes of flow duration curves in Japanese mountainous watersheds.

  3. Jun MIURA : Relationship between quantity and quality of surface water flowing into the Bishamon Pond during a snowmelt season.

  4. Naoya MIURA : Variability and its modeling of Cs-137 concentration in the dehydrated sewage sludge in Fukushima.

  5. Kenta SATO : A literature review and a proposal toward precise numerical simulation of soliton fission wave.

  6. Yuichi SATO : Exploring the relationships between low-flows and physiographic watershed characteristics.



FY2012

  1. Yuki MIURA : Topographic characterization of watersheds and its implications to rainfall-runoff processes.

  2. Hikaru NISHIYAMA : Suggesting an identification scheme for rainfall-runoff processes of watersheds.

  3. Satoshi OKAZAKI : Estimating catchment-scale precipitation and evapotranspiration.

  4. Shoma RYUZAKI : Flood frequency analysis for watershed planning and management.

FY2011

  1. Toru KANDA : Estimating spatial distribution of supplies and demands of water, food and energy in the Abukuma river watershed.

  2. Syuhei KOBAYASHI : Estimating storage changes of mountainous watersheds in the Tohoku region.

  3. Hideaki MATSUZAWA : Community structure of aquatic biota in the upper Shiroishi river basin.

  4. Masakiyo TASAKI : Flood frequency analysis of the Abukuma river by using intensity-duration-frequency (IDF) curve.

FY2010

  1. Masaya ANDO : Investigating physical and chemical profiles of snow cover and temporal variation of snowmelt water chemistry for understanding snowmelt processes.

  2. Tomohiro HAGA : Hourly hydrograph separation for the Abukuma river based on numerical filter technique and water quality data.

  3. Ryo KIMURA : Effects of geographic characteristics of watersheds on the flow regimes in Japanese mountainous areas.


Ashikaga Institute of Technology

Department of Civil Engineering

(FY2005 - FY2007, 19 members in total）

Bachelor course

FY2007

    1. Yuichi KAMEDA : Estimating recalcitrant organic matter concentration in river water.

    2. Futoshi KONDO : Estimating the capacity of anthropogenic activity in a watershed from the viewpoint of organic matter concentration in river water.

    3. Shinsuke SEKIGUCHI : Effect of watershed climatic condition on flow duration curve.

    4. Kazuya TAKAYAMA : Estimating the capacity of anthropogenic activity in a watershed from the viewpoint of organic matter concentration in river water.

    5. Makoto TAKEDA : Effect of watershed climatic condition on flow duration curve.

    6. Fumiya HATTORI : Estimating recalcitrant organic matter concentration in river water.

FY2006

    1. Atsushi SATO : Simple estimating method of recalcitrant organic matter concentration in river water.

    2. Kyohei ABE : Spatio-temporal variation of organic matter concentration in Watarase River watershed.

    3. Kouji IZUMI : Spatio-temporal variation of organic matter concentration in Watarase River watershed.

    4. Shuichi ICHIKAWA : Simple estimating method of recalcitrant organic matter concentration in river water.

    5. Takayuki KINAMI : Spatio-temporal variation of organic matter concentration in Watarase River watershed.

    6. Ayako KUDO : Simple estimating method of recalcitrant organic matter concentration in river water.

FY2005

    1. Kazutaka HOSHI : Relationship between BOD and TOC in Watarase River watershed.

    2. Tsuyoshi IKEDA : Effect of watershed physiographic conditions on flow duration curve.

    3. Haruki UEHARA : Effect of watershed physiographic conditions on flow duration curve.

    4. Atsushi SEKIGUCHI : Testing applicability of REW modeling approach.

    5. Masaki MIYASHITA : Testing applicability of REW modeling approach.

    6. Jinichi YAGUCHI : Relationship between BOD and TOC in Watarase River watershed.

    7. Yuta YOSHIKAWA : Simple estimation method of seasonal typhoon landfalling.