Implementation and evaluation of 4dEnVar for coastal biogeochemical cycle analysis

Teruhisa OKADA, Masayasu IRIE

Japanese Journal of JSCE　Vol. 79　No. 17　p. 23-17144-n/a　2023/11　Research paper (scientific journal)

Surveys of Riverbank Garbage in the Yamato River

Masayasu Irie, Daisuke Iwade, Taishi Yoshino, Takao Nakaji, Masaaki Hashimoto, Makoto Nakamichi, Tomoaki Matsumoto

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)　Vol. 78　No. 2　p. I_943-I_948　2023/01　Research paper (scientific journal)

Impacts of Water Temperature Increase by Global Climate Change on Hypoxia and Oxygen Cycles in Osaka Bay

Takanori NAGANO, Masayasu IRIE, Hironori HIGASHI

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 78　No. 2　p. I_841-I_846　2022/11　Research paper (scientific journal)

Experiments on Phytoplankton-related Oxygen Consumption and Simulation of Diurnal Oxygen Variation in Estuarine Surface Layer

Rina OE, Takanori NAGANO, Masayasu IRIE, Koichi SHIMOTORI

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 78　No. 2　p. I_787-I_792　2022/11　Research paper (scientific journal)

Impacts of Discharge Timing of Tsunami Debris on Its Distributions and Hazardous Area in Osaka Bay (Japan): A Case Study by Considering Inundation

Masayasu Irie, Taishi Yoshino

Proceedings of the 32nd International Ocean and Polar Engineering Conference (ISOPE)　2022/06　Research paper (international conference proceedings)

Numerical Simulation To Analyze The Effect Of Diurnal Stratification On Bottom Hypoxia Development And Recovery In Lake Kasumigaura, Japan

Yueyi Wang, Masayasu Irie, Yusuke Nakatani, ayato Kohzu, Takao Ouchi, Miyuki Yuzawa

Proceedings of the 39th IAHR World Congress　2022/06　Research paper (international conference proceedings)

Influence of boundary conditions on modeling water temperature and quality in a shallow stratified lake (Lake Suwa, Japan)

Masayasu Irie, Masaki Okuda, Yuichi Miyabara, Yusuke Nakatani, Masashi Toyota

Proceedings of the 39th IAHR World Congress　2022/06　Research paper (international conference proceedings)

Assessment of Climate Impacts on Stream Temperature and Sweetfish Ecology in the Kako River, Japan

Yuma TAKAHASHI, Masayasu IRIE

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)　Vol. 77　No. 1　p. 98-110　2021/12　Research paper (scientific journal)

Model Analysis Considering Bottom Heat Transfer on Weak Thermal Stratification in Lake Suwa

Masaki Okuda, Masayasu Irie, Yusuke Nakatani, Yuichi Miyabara, Masashi Toyota

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)　Vol. 77　No. 2　p. 1081-1086　2021/11　Research paper (scientific journal)

Modeling of Water Temperature in the Yamato River and Effects of Future Temperature Rise and Depopulation

Tianxu Han, Masayasu Irie, Yuma Takahashi

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)　Vol. 77　No. 2　p. I_991-I_996　2021/11　Research paper (scientific journal)

Estimation of Hypoxia Volume in Osaka Bay by Experiment of Sediment Oxygen Consumption With Airtight Cores and Data Assimilation

Masayasu Irie, Takanori Nagano, Koichi Shimotori

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 77　No. 2　p. I_853-I_858　2021/09　Research paper (scientific journal)

PRACTICAL EVALUATION OF FOUR DIMENSIONAL VARIATIONAL DATA ASSIMILATION USING DUAL NUMBER

永野隆紀, 入江政安, 岡田輝久

土木学会論文集 B2(海岸工学)(Web)　Vol. 76　No. 2　p. I_1003-I_1008　2020/10　Research paper (scientific journal)

高閉鎖性海域の水質底質特性と発電所取放水の影響解析

西田修三, 山西悟史, 中谷祐介, 入江政安

土木学会論文集 B2 (海岸工学)　Vol. 76　No. 2　p. I_913-I_918　2020/10　Research paper (scientific journal)

IMPACT OF BIOGEOCHEMICAL MODEL SKILL ON DATA ASSIMILATION PERFORMANCE IN WATER QUALITY ANALYSIS

入江政安, 井上凌, 岡田輝久

土木学会論文集 B2(海岸工学)(Web)　Vol. 76　No. 2　p. I_1009-I_1014　2020/10

Fundamental study on assimilation of tsunami currents observed by HF ocean radar

Masayasu Irie, Pao Kusakabe, Satoshi Yamanishi, Hirofumi Hinata

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 75　No. 2　p. I_1315-I_1320　2019/10　Research paper (scientific journal)

Parameter estimation of a distributed hydrological model using the adjoint method: A case study in the Ibo river watershed, japan

Masayasu Irie, Hiroaki Toi, Masahide Ishizuka, Kohji Tanaka, Shuzo Nishida

E-proceedings of the 38th IAHR World Congress　p. 4692-4701　2019/09　Research paper (international conference proceedings)

Parameter estimation of a distributed hydrological model for the Ibo river basin with polynomial chaos expansion

Putika Ashfar KHOIRI, Masayasu IRIE, Hiroaki TOI, Masahide ISHIZUKA

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)　Vol. 75　No. 2　p. I_247-I_252　2019/08　Research paper (scientific journal)

Assimilation of vertical chlorophyll and oxygen profiles using the lognormal four dimensional variational method: A case study in Osaka Bay, Japan

Masayasu Irie, Kohei Noda, Teruhisa Okada

Ocean Predict '19　2019/05　Research paper (other academic)

FUNDAMENTAL STUDY ON ASSIMILATION OF TSUNAMI CURRENTS OBSERVED BY HF OCEAN RADAR

IRIE Masayasu, KUSAKABE Pao, YAMANISHI Satoshi, HINATA Hirofumi

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 75　No. 2　p. I_1315-I_1320　2019

Modeling of nitrogen and phosphorus profiles in sediment of Osaka Bay, Japan with parameter optimization using the polynomial chaos expansion

Masayasu Irie, Fumiaki Hirose, Teruhisa Okada, Jann Paul Mattern, Katja Fennel

Coastal Engineering Journal　2018/11　Research paper (scientific journal)

Parameter estimation of a distributed hydrological model using the adjoint method

Kohei Oda, Masayasu Irie, Hiroaki Toi, Masahide Ishizuka, Kohji Tanaka

ournal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)　Vol. 74　No. 5　p. I_145-I_150　2018/11　Research paper (scientific journal)

Modeling of nitrogen and phosphorus profiles in sediment of Osaka Bay, Japan with parameter optimization using the polynomial chaos expansion

Masayasu Irie, Fumiaki Hirose, Teruhisa Okada, Jann Paul Mattern, Katja Fennel

Coastal Engineering Journal　2018/11　Research paper (scientific journal)

多項式カオス展開を用いた大阪湾奥部のクロロフィル・DO分布の再現性向上に関する検討

井上凌, 野田晃平, 小田航平, 入江政安

2018/09　Research paper (other academic)

対数正規4次元変分法による水質実観測データの同化に関する基礎的検討

野田晃平, 岡田輝久, 入江政安

2018/09　Research paper (other academic)

Impacts of temperature and salinity assimilation with the Ensemble Kalman Filter on simulated chlorophyll and hypoxia in Osaka Bay, Japan

Masayasu Irie, Yuma Takahashi, Masahiro Hayashi, Liuqian Yu, Katja Fennel

2018/06　Research paper (other academic)

津波漂流物予測計算を用いた適切な避泊地・航路啓開ルート提案のための検討

山西 悟史, 日下部 包, 入江 政安

平成30年度土木学会関西支部年次学術講演会講演集　2018/06　Research paper (other academic)

アンサンブルカルマンフィルタによる大阪湾における水温・塩分鉛直分布の同化と水質再現に及ぼす影響

高橋 祐馬, 林 政宏, 入江 政安

平成30年度土木学会関西支部年次学術講演会講演集　2018/06　Research paper (other academic)

Influence of Future Water Demand with Population Change on Dam Operation in Drought Period

Masayasu Irie, Hiroaki Toi, Morimasa Tsuda, Shuzo Nishida

Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)　Vol. 73　No. 5　p. I_39-I-46　2018/01　Research paper (scientific journal)

Observation of inorganic nitrogen and phosphorus using submergible spectrophotometer

Masayasu Irie, Masahiro Hayashi, Teruhisa Okada, Takashi Yamano, Ryuichi Fujiwara

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 73　No. 2　p. I_1249-I_1254　2017/10　Research paper (scientific journal)

Data Assimilation of Vertical Data of Water Quality Using Lognormal Four-Dimensional Variational Method: Evaluation by Twin Experiments

Masayasu Irie, Kohei Noda, Teruhisa Okada

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 73　No. 2　p. I_1243-I_1248　2017/10　Research paper (scientific journal)

対数正規4次元変分法を用いた大阪湾水質鉛直分布データ同化に関する基礎的検討

野田 晃平, 岡田 輝久, 入江 政安

平成29年度土木学会関西支部年次学術講演会講演集　2017/05　Research paper (other academic)

渇水時ダム利水運用に及ぼす人口動態影響評価に関する試計算

戸井 博彬, 入江 政安, 津田 守正

平成29年度土木学会関西支部年次学術講演会講演集　2017/05　Research paper (other academic)

Twin experiments of biogeochemical parameter estimation by 4DVar data assimilation in an estuary

Okada, T, Irie, M, Nishida, S

2017/02

Data assimilation of chlorophyll and dissolved oxygen profiles using the EnKF: a numerical experiment for Osaka Bay, Japan

Ito, Y, Irie, M, Okada, T, Yu, L, Fennel, K

2017/02

Optimization of time-dependent model parameters by polynomial chaos expansion for a better model representation of chlorophyll in Osaka Bay, Japan

Irie, M, Oda, K, Okada, T, Mattern, J.P, Fennel, K

2017/02

Application of multivariate temporal disaggregation method to estimate daily sectoral water consumption

Morimasa Tsuda, Masayasu Irie, Yoichi Iwami

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)　Vol. 73　No. 4　p. I_271-I_276　2017/02　Research paper (scientific journal)

Biogeochemical 4DVar data assimilation: model configurations and twin experiments

Teruhisa Okada, Masayasu Irie, Shuzo Nishida

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)　Vol. 73　No. 4　p. I_1057-I_1062　2017/02　Research paper (scientific journal)

Development of a Real-time Water Quality Prediction System in Osaka Bay

Masayasu Irie, Pao Kusakabe, Tomoya Ota, Teruhisa Okada, Shuzo Nishida

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 72　No. 2　p. I_1261-I_1266　2016/11　Research paper (scientific journal)

Data Assimilation of Currents Observed by Radar and ADCPs in Osaka Bay

Teruhisa Okada, Masayasu Irie, Takeharu Kuwata, Shuzo Nishida

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 72　No. 2　p. I_505-I_510　2016/11　Research paper (scientific journal)

底質モデルによる窒素・リンの間隙水中濃度および溶出量推定における多項式カオス展開を用いた高度化

入江政安, 廣瀨文明, 岡田輝久

日本沿岸域学会研究討論会2016 講演概要集　Vol. 29　2016/07　Research paper (other academic)

Effects of data assimilation on real-time simulation of hypoxia in Tokyo Bay, Japan

Masayasu Irie, Tomoya Ota, Teruhisa Okada, Shuzo Nishida

Estuarine and Coastal Modeling Conference (ECM14)　2016/06　Research paper (other academic)

季節変動を伴う水質モデルパラメータの多項式カオス展開による最適化に関する検討

小田航平, 廣瀬文明, 岡田輝久, 入江政安

平成28年度土木学会関西支部年次学術講演会講演集　2016/05　Research paper (other academic)

水中設置型分光光度計を用いた栄養塩連続観測法の検討と現地観測

林政宏, 入江政安, 岡田輝久, 伊藤由比己, 山野 貴司

平成28年度土木学会関西支部年次学術講演会講演集　2016/05　Research paper (other academic)

大阪湾におけるリアルタイム水質再現予測システムに関する検討

日下部包, 入江政安, 岡田輝久, 太田智也, 西田修三

平成28年度土木学会関西支部年次学術講演会講演集　2016/05　Research paper (other academic)

A study on 4D-Var data assimilation of vertical profiles of chlorophyll observed in coastal sea

Teruhisa Okada, Masayasu Irie, Yuji Fujii, Shuzo Nishida

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 71　No. 2　p. I_1297-I_1302　2015/10　Research paper (scientific journal)

Accuracy verification of real-time flow and particle tracking simulator by buoy experiment

Shuzo Nishida, Tomoya Ota, Masayasu Irie, Teruhisa Okada, Iwao Noda, Kusukatsu Yuasa, Makoto Ushiro, Takeshi Ono

Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)　Vol. 71　No. 2　p. I_497-I_502　2015/09　Research paper (scientific journal)

Quantification of human activities and influence of fishery on internal cycle system in basins of three major bays, Japan

Masayasu Irie, Atsushi Yamanaka, Takahisa Tabuchi, Shigeru Tabeta

Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)　Vol. 71　No. 2　p. I_832-I_837　2015/09　Research paper (scientific journal)

流動水質モデルおよび経済モデルを用いた長期連動解析による干潟保全の経済評価に関する試算

入江政安, 井田洋介

日本沿岸域学会研究討論会2015 講演概要集　Vol. 28　2015/07　Research paper (other academic)

Modeling of water quality in tidal river network in Osaka, Japan

Masayasu Irie, Tomo Yamaguchi, Shuzo Nishida, Yusuke Nakatani

Journal of Water and Environment Technology　Vol. 13　No. 3　p. 231-248　2015/06　Research paper (scientific journal)

多項式カオス展開を用いた底泥中のアンモニア態窒素再現に関するパラメータ推定

廣瀬文明, 岡田輝久, Jann Paul Mattern, 入江政安

平成27年度土木学会関西支部年次学術講演会講演集　2015/05　Research paper (other academic)

Verification of modified ROMS 4DVAR data assimilation system to avoid numerical instability near narrow straits

Teruhisa Okada, Masayasu Irie

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)　Vol. 71　No. 4　p. I_685-I_690　2015/02　Research paper (scientific journal)

Improvement of ocean modeling for coastal seas using four-dimensional variational data assimilation

Masayasu Irie, Teruhisa Okada

Bulletin on Coastal Oceanography　Vol. 52　No. 2　p. 159-168　2015/02　Research paper (scientific journal)

Data Assimilation of Hourly Vertical Current Profiles Using 4D-Var in Stratified Coastal Area

Teruhisa Okada, Masayasu Irie, Shuzo Nishida

Proceedings of the Twenty-fourth (2014) International Ocean and Polar Engineering Conference　p. 1023-1029　2014/06　Research paper (international conference proceedings)

Development of a Real-time Current Simulator for Osaka Bay

Shuzo Nishida, Masayasu Irie, Yusuke Tamaki, Masahiro Mizutani, Takeshi Ono, Teruhisa Okada

Proceedings of the Twenty-fourth (2014) International Ocean and Polar Engineering Conference　p. 1035-1042　2014/06　Research paper (international conference proceedings)

Release of Nitrogen and Phosphorus from Sediment in Osaka Bay: Results from Field Survey 2013

Teruhisa Okada, Kanako Nishimoto, Masayasu Irie, Yusuke Nakatani, Shuzo Nishida

Proceedings of the 48th Annual Conference of Japan Society on Water Environment　2014/03　Research paper (other academic)

Numerical Analysis of Nitrogen and Phosphorus in Sediment of Osaka Bay: Release from Sediment and Profiles in Pore Water

Teruhisa Okada, Kanako Nishimoto, Masayasu Irie, Shuzo Nishida

Proceedings of the 48th Annual Conference of Japan Society on Water Environment　2014/03　Research paper (other academic)

Quantification of the adverse effects of drought caused by water supply restrictions considering the changes in household water consumption characteristics

Morimasa Tsuda, Shuzo Nishida, Masayasu Irie

Water Science and Technology-Water Supply　Vol. 14　No. 5　p. 743-750　2014　Research paper (scientific journal)

Data Assimilation of Vertical Current Profiles Using 4D-Var

Masayasu Irie, Teruhisa Okada, Shuzo Nishida

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 69　No. 2　p. I_506-I_510　2013/10　Research paper (scientific journal)

Four-dimensional Variational Data assimilation of Surface Currents Measured by Oceanic Radar

Masayasu Irie, Yuji Fujii, Teruhisa Okada, Shuzo Nishida

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 69　No. 2　p. I_501-I_505　2013/10　Research paper (scientific journal)

An Economig Valuation of the Filtration Function of Mudflat Using Water Quality Model and Computable General Equilibrium Model

Masayasu Irie, Yosuke Ida, Shuichi Kato, Shuzo Nishida

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 69　No. 2　p. 1381-1385　2013/10　Research paper (scientific journal)

Quantification of Draught Damages by Water Supply Restrictions Considering the Change in Household Water Consumption Characteristics

Morimasa Tsuda, Shuzo Nishida, Masayasu Irie

Proceedings of the 5th IWA-ASPIRE conference　Vol. 57　p. 1_1663-1668　2013/09　Research paper (international conference proceedings)

流動水質モデルと経済モデルを用いた干潟造成事業の経済学的評価に関する検討

井田 洋介, 加藤 秀一, 入江 政安, 西田 修三

平成25年度土木学会関西支部年次学術講演会講演集　2013/05　Research paper (other academic)

4次元変分法による海洋レーダーデータの同化に関する検討

藤井 裕司, 岡田 輝久, 入江 政安, 西田 修三

平成25年度土木学会関西支部年次学術講演会講演集　2013/05　Research paper (other academic)

大阪湾における窒素・リン溶出量に関する底質調査および数値モデルによる推定

西本佳名子, 岡田輝久, 入江政安, 西田修三

平成25年度土木学会関西支部年次学術講演会講演集　2013/05　Research paper (other academic)

"Fishery Simulator" to Vitalize Trawl Fishery in Ise Bay

Shigeru Tabeta, Yoshiharu Nakamura, Takayuki Suto, Kodai Saito, Mikio Sekine, Izumi Seki, Kimitoshi Ishikawa, Masayasu Irie, Keita Furukawa

GLOBAL CONGRESS ON ICM: LESSONS LEARNED TO ADDRESS NEW CHALLENGES, VOLS. 1 AND 2　p. 513-524　2013　Research paper (international conference proceedings)

伊勢湾におけるマアナゴを対象とした底びき網漁業の実態把握と操業シミュレータの開発

多部田茂, 中村義治, 須藤隆行, 丸山拓也, 関根幹男, 入江政安, 関いずみ, 古川恵太

沿岸域学会誌　Vol. 25(3)　No. 3　2012/12

DATA ASSIMILATION OF TEMPERATURE AND SALINITY USING FOUR DIMENSIONAL VARIATIONAL METHOD

IRIE Masayasu, TSUJI Yohei, OKADA Teruhisa, NISHIDA Shuzo

PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN　Vol. 68　No. 2　p. I_1007-I_1012　2012

Effect of 4D-Var Data Assimilation on Predictions of Density Distributions and Water Quality

IRIE Masayasu, NISHIDA Shuzo, TSUJI Yohei, OKADA Teruhisa

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 68　No. 2　p. I_446-I_450　2012

Influence of Flow Patterns on Dissolved Oxygen in Hypoxic Ports of Eutrophicated Bay Assessed by Observation and Numerical Simulation

Masayasu Irie, Shuzo Nishida, Keiji Nakatsuji

INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING　Vol. 21　No. 4　p. 294-301　2011/12　Research paper (scientific journal)

Behavior of Hypoxia in Osaka Bay; Analysis of Data Collected at Constant Monitoring Stations and Visualization with Water Quality Simulation

Masayasu Irie, Yohei Tsuji, Shuzo Nishida, Keigo Sakai, Susumu Nakashima, Hiroyuki Nakahira, Miyuki Nakasuji

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 67　No. 2　p. 931-935　2011/10　Research paper (scientific journal)

伊勢湾小型底曳網漁業の実態把握に基づく資源管理方策の効果の検討

多部田茂, 中村義治, 須藤隆行, 丸山拓也, 入江政安, 関いずみ, 石川公敏, 関根幹男, 深町孝子, 古川恵太

平成23年度日本沿岸域学会全国大会概要集　No. 24　2011/09　Research paper (other academic)

Influence of Kuroshio meandering on the nutrient transport to Osaka Bay

Yusuke Nakatani, Shuzo Nishida, Masayasu Irie

Proceedings of the International Offshore and Polar Engineering Conference　p. 841-848　2011　Research paper (international conference proceedings)

Modeling of anoxic mineralization processes in the sediments of eutrophic littoral regions of Osaka Bay

Masayasu Irie, Shuzo Nishida, Kyosuke Teranaka, Yohei Tsuji, Yusuke Nakatani

Proceedings of the International Offshore and Polar Engineering Conference　p. 879-886　2011　Research paper (international conference proceedings)

Analysis of Hypoxia Dynamics Using Pelagic and Benthic Biogeochemical Model: Focus on the Formation and Release of Hydrogen Sulfide

IRIE Masayasu, NISHIDA Shuzo, TERANAKA Kyosuke, TSUJI Yohei, HIRASAWA Mitsunari, FUJIWARA Toshiharu, NAKASUJI Miyuki

PROCEEDINGS OF THE JAPANESE CONFERENCE ON COASTAL ENGINEERING　Vol. 66　No. 1　p. 1066-1070　2010

Precipitation loads of nutrients and impact on primary production in Osaka Bay

Yusuke Nakatani, Shuzo Nishida, Masayasu Irie

Proceedings of the International Offshore and Polar Engineering Conference　p. 496-502　2009　Research paper (international conference proceedings)

Field observations and numerical simulation of currents and water quality in the harbor of Osaka Bay

Masayasu Irie, Shuzo Nishida, Keiji Nakatsuji

Proceedings of the International Offshore and Polar Engineering Conference　p. 507-512　2009　Research paper (international conference proceedings)

Sediments in the Mouths of Urban Rivers and its Influence on Hypoxia - Analysis by Field Surveys and Numerical Model -

IRIE Masayasu, TERANAKA Kyosuke, YAMAGUCHI Tomo, NISHIDA Shuzo

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 65　No. 1　p. 1061-1065　2009

Reliability Evaluation and Assimilation of Coastal Current Data Measured by Ocean Rader

NISHIDA Shuzo, TAO Yuki, SHIBATA Takeshi, HASEGAWA Goki, IRIE Masayasu, HIRASAWA Mitsunari, FUJIWARA Toshiharu, UEOKA Satoshi

Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)　Vol. 65　No. 1　p. 1451-1455　2009

Water Quality of Rainwater and Its Impact on Primary Production in the Osaka Bay

NISHIDA Shuzo, NAKATANI Yusuke, SHIMADA Kyosuke, IRIE Masayasu

Doboku Gakkai Ronbunshuu B　Vol. 55　p. 1061-1065　2008

Estimation of Dissolved Oxygen Consumption in Sand Beach Inhomogeneously Contaminated

IRIE Masayasu, KUBOTA Yuki, NAKATSUJI Keiji, NISHIDA Shuzo

Doboku Gakkai Ronbunshuu B　Vol. 54　p. 1026-1030　2007

Study of Sediment Quality at Dredged Hollow Places in Port of Han-nan, Osaka Bay

IRIE Masayasu, NAKATSUJI Keiji, TERANAKA Kyosuke

Doboku Gakkai Ronbunshuu B　Vol. 54　p. 1091-1095　2007

Field Surveys of Currents and Water Quality around Dredged Hollow Places in Port of Han-nan, Osaka Bay

NAKATSUJI Keiji, IRIE Masayasu, SHIBATA Takeshi

Doboku Gakkai Ronbunshuu B　Vol. 54　p. 1096-1100　2007

WATER ENVIRONMENT OF YODO RIVER BASIN AND ITS IMPACT ON WATER QUALITY IN THE OSAKA BAY

NISHIDA Shuzo, KITABATAKE Daisuke, IRIE Masayasu

Doboku Gakkai Ronbunshuu B　Vol. 51　p. 1153-1158　2007

FIELD OBSERVATION AND STUDY OF CHARACTERISTICS OF WATER QUALITY AND ITS MANAGEMENT IN DOTOMBORI RIVER

IRIE Masayasu, NISHIDA Shuzo

Doboku Gakkai Ronbunshuu B　Vol. 51　p. 1129-1134　2007

大阪湾奥部沿岸域における懸濁態物質の挙動と底泥特性

西田 修三, 入江 政安, 中辻 啓二

海岸工学論文集　Vol. 53　p. 991-995　2006

紀淡海峡における水質変動特性と栄養塩輸送

西田 修三, 金 漢九, 高地 慶, 入江 政安, 中辻 啓二

海岸工学論文集　Vol. 53　p. 996-1000　2006

大阪湾北部港湾域の流動特性と水質への影響

入江 政安, 佐々木 昇平, 和田 伸也, 中辻 啓二, 西田 修三

海岸工学論文集　Vol. 53　p. 366-370　2006

FACTORS THAT INFLUENCE THE DEVELOPMENT AND DECLINE OF ANOXIC WATER AT AN ENCLOSED WATER AREA IN THE HEAD OF A BAY

IRIE Masayasu, NISHIMURA Kazuyuki, SASAKI Shohei, NISHIDA Shuzo, NAKATSUJI Keiji

Doboku Gakkai Ronbunshuu B　Vol. 49　p. 1303-1308　2005

Seasonal variations in temperature, salinity and dissolved oxygen in the enclosed area at the head of osaka bay, japan

Masayasu Irie, Keiji Nakatsuji, Shuzo Nishida, Kusukatsu Yuasa

Asian and Pacific Coasts, 2003 - Proceedings of the 2nd International Conference　2004　Research paper (international conference proceedings)

大阪湾における貧酸素水塊の挙動に関する数値シミュレーション

入江 政安, 中辻 啓二, 西田 修三

海岸工学論文集　Vol. 51　p. 926-930　2004

FIELD SURVEYS OF ANOXIC WATER IN ENCLOSED COASTAL AREA OF OSAKA BAY

NAKATSUJI Keiji, IRIE Masayasu, NISHIDA Shuzo, YUASA Kusukatsu

Doboku Gakkai Ronbunshuu B　Vol. 47　p. 1285-1290　2003

密度差の大きい流動場への改良σ座標系モデルの適用

入江 政安, 中辻 啓二, 西田 修三

海岸工学論文集　Vol. 50　p. 361-365　2003

都市域近傍の閉鎖性水域における貧酸素水塊の挙動に及ぼす気象の影響

入江 政安, 西田 修三, 中辻 啓二, 金 俊憲, 湯浅 楠勝

海岸工学論文集　Vol. 50　p. 991-995　2003

陸奥湾湾口部における流動・密度構造:1996年夏の観測

崔 成烈, 入江 政安, 福島 博文, 西田 修三, 中辻 啓二

海岸工学論文集　Vol. 44　p. 381-385　1997