Title |
Professor |
Laboratory Address |
東京都世田谷区桜丘1-1-1 |
Contact information |
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Homepage |
http://www.nodai.ac.jp/eng/original/l-info/shimada/index-j.html |
External Link |
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SAWAHIKO Shimada Professor |
Employment Record in Research 【 display / non-display 】
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Tokyo University of Agriculture Faculty of Regional Environment Science Department of Bioproduction and Environment Engineering
2001.04 - 2002.03
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Tokyo University of Agriculture Faculty of Regional Environment Science Department of Bioproduction and Environment Engineering Research Assistant
2002.04 - 2004.03
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Tokyo University of Agriculture Faculty of Regional Environment Science Department of Bioproduction and Environment Engineering Lecturer
2004.04 - 2006.09
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東京農業大学 大学院 授業担当
2005.04
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東京農業大学 大学院 授業担当
2006.04
Professional Memberships 【 display / non-display 】
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Japan Peatlang Society
2013.10
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Center for Environmental Information Science
2010.09
Research Areas 【 display / non-display 】
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Environmental Science/Agriculture Science / Environmental dynamic analysis
Papers 【 display / non-display 】
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Nomadic responses to rainfall: Nighttime light evidence from wadis in Djibouti Reviewed International coauthorship International journal
Bouh Omar Ali, Yutaka Ito, Shuichi Oyama, Sawahiko Shimada & Yuki Yamamoto
Scientific African 25 e02337 2024.09
Language:English Publishing type:Research paper (scientific journal) Publisher:Elsevier B.V.
This study examined how precipitation affects human activity in dry areas, focusing on Djibouti's nomads. Using satellite data, researchers found increased nighttime light brightness near wadis after rainfall, indicating higher nomadic activity. This effect decreased with distance from wadis and was absent in urban areas. The findings highlight water's crucial role in nomadic settlements and resource management, providing valuable insights for policymakers in African countries.
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Comprehensive Analysis of Land Use and Cover Dynamics in Djibouti Using Machine Learning Technique: A Multi-Temporal Assessment from 1990 to 2023 Reviewed International coauthorship International journal
Pandit S, Shimada S & Dube T
Environmental Challenges 15 100920 2024.04
Language:English Publishing type:Research paper (scientific journal) Publisher:Elsevier
The study focuses on analyzing land use changes in Djibouti from 1990 to 2023 using remote sensing and machine learning techniques. We identified seven major land cover classes shows declines in mangroves and farmland, and highlights expansions in built-up areas, water bodies, and barren lands over time.
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High‑resolution mapping of seasonal snow cover extent in the Pamir Hindu Kush using machine learning‑based integration of multi‑sensor data International journal
Abdul Basir Mahmoodzada, Pragyan Das, Divyesh Varade, Mohd Arslaan Akhtar, Sawahiko Shimada
Acta Geophysica 71 ( 6 ) 2024.01
Authorship:Last author Language:English Publishing type:Research paper (scientific journal) Publisher:Springer Link
This study proposes a framework to develop high-resolution snow cover area (SCA) products using freely available Sentinel-1 and MODIS data. Various Sentinel-1 parameters sensitive to snow are integrated with resampled MODIS normalized difference snow index (NDSI) data to estimate an equivalent NDSI for determining 15m resolution SCA. Equivalent NDSI is derived using machine learning regression with support vector machines (SVMs) and multilayer perceptron (MLP). Experiments were performed for northern Hindu Kush mountain regions in February and March 2019. SCA evaluation used thresholded NDSI from Landsat-8. SVM regression showed better SCA performance over MLP. Both SVM and MLP improved snow classification accuracy over resampled MODIS NDSI alone, with higher mean conditional kappa coefficients.
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Quantification of Amu River Riverbank Erosion in Balkh Province of Afghanistan during 2004–2020 Reviewed International journal
Abdul Basir Mahmoodzada, Divyesh Varade, Sawahiko Shimada, Hiromu Okazawa, Shafiqullah Aryan, Gulbuddin Gulab, Abd El-Zaher M. A. Mustafa, Humaira Rizwana, Yogesh K. Ahlawat and Hosam O. Elansary
land 12 ( 10 ) 1890 2023.10
Language:English Publishing type:Research paper (scientific journal) Publisher:MDPI
This study quantifies riverbank erosion along the Amu River in Afghanistan's Kaldar District from 2004-2020 using modeled river discharge data. A framework integrating multi-source data models erosion area based on: river discharge, river width, and erosion area. Discharge was modeled using ECMWF and ground data. River width was manually determined from Landsat imagery. Erosion area was calculated through shoreline analysis. From 2008-2020, average annual erosion was 5.4 km2, totaling 86.3 km2 during 2004-2020 due to flooding. Peak erosion occurred in 2008-2009, 2011-2012 and 2015-2016. Erosion area correlated linearly with discharge intensity and stream power (R2=0.84).
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FRACTURE-FAULT DETECTION USING DEEP LEARNING WITH STEPWISE ELIMINATION FROM SATELLITE IMAGES IN DJIBOUTI Reviewed International coauthorship International journal
Rubanga DP, May-Cuevas SA, Arvelyna Y & Shimada S
International Journal of GEOMATE 25 ( 108 ) 241 - 248 2023.08
Authorship:Last author Language:English Publishing type:Research paper (scientific journal)
This study focuses on accurately detecting fracture-fault structures in Djibouti using WV-3 high resolution imagery. A deep learning approach using a deep convolutional neural network (Deep-CNN) model is proposed. The model successfully identifies fracture-fault lines, contributing to sustainable water management and improving water security in Djibouti.
Books and Other Publications 【 display / non-display 】
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沙漠学事典
島田沢彦( Role: Contributor , 2章「リモートセンシング」)
丸善出版 2020.07 ( ISBN:978-4-621-30517-1 )
Total pages:534 Language:Japanese Book type:Dictionary, encyclopedia
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湿地の科学と暮らし-北のウェットランド大全
矢部・山田・牛山監修( Role: Joint author)
北海道大学出版会 2017.04
Language:Japanese Book type:Scholarly book
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Osaki M and Tsuji N (Eds.)( Role: Joint author , 解析・執筆)
Springer 2016.01 ( ISBN:978-4-431-55680-0 )
Language:English Book type:Scholarly book
以下3章を担当:
Chapter 8. Takada M, Shimada S and Takahashi H "Tropical Peat Formation" (pp. 127-135),
Chapter 23. Shimada S, Takahashi H and Osaki M "Carbon Stock Estimate" (pp. 353-364),
Chapter 31. Shimada S, Takada M and Takahashi H "Peat Mapping" (pp. 455-467) -
はかる つくる えがく・そだてる―みどりの地域を育む 地域環境科学が分かる本
東京農業大学地域環境科学部教員一同( Role: Joint author , 編集および執筆)
東京農業大学出版会 2015.07 ( ISBN:978-4-88694-450-4 )
Language:Japanese Book type:General book, introductory book for general audience
中高生をターゲットにした地域環境科学の研究内容について解説した啓蒙書である.編集委員として編集を担当するとともに,pp. 33「地球規模の環境保全のために インドネシアの熱帯林をウォッチ」の執筆を担当.
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生物科学系・農学系のための情報処理2015
東京農業大学コンピュータセンター( Role: Joint author , 編集および執筆)
三共出版 2015.03
Language:Japanese Book type:Textbook, survey, introduction
東京農業大学授業「情報基礎(一)」「情報基礎(二)」のテキストの2015年度版である.編集委員長として編集の他,Ⅱ-6章「データベースの基本操作」の単著およびⅡ-7章「地理情報システム(GIS)の基本操作―ArcGIS 10.2―」の共著執筆担当.
Misc 【 display / non-display 】
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Tea Plantation Monitoring using UAV in Shizuoka, Japan Reviewed
SHIMADA S, SATO K, SEKIYAMA A and FUJIKAWA T
Esri Map Book 33 2018.07
Authorship:Lead author Language:English Publishing type:Internal/External technical report, pre-print, etc.
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作物生育状態をドローンでモニタリング把握~精密農業への大きな技術革新~ Invited
島田沢彦
測量 2016.11 6 - 11 2016.11
Authorship:Lead author Language:Japanese Publishing type:Rapid communication, short report, research note, etc. (scientific journal)
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茶葉分光反射特性把握を目指したドローン付属カメラのフィルタリング検討
荻野高嶺・佐藤聖久・島田沢彦・関山絢子・豊田裕道
JACEM 62 27 - 32 2016.05
Authorship:Corresponding author Language:Japanese Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution) Publisher:一般社団法人 農業土木機械化協会
静岡県菊川市における茶園のドローン撮影画像をクラスター分類により二番茶の生育状態の把握を試みた報文である.
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研究室紹介「東京農業大学・地域環境科学部・生産環境工学科 広域環境情報学研究室」
島田沢彦
日本リモートセンシング学会誌 34 ( 1 ) 36 - 37 2014.01
Language:Japanese Publishing type:Article, review, commentary, editorial, etc. (international conference proceedings) Publisher:日本リモートセンシング学会
東京農業大学の広域環境情報学研究室の教育・研究内容について解説した紹介文。
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インドネシア・中央カリマンタンにおける衛星画像を用いた熱帯泥炭地モニタリング
石橋憲・島田沢彦
農業電化 62 ( 8 ) 5 - 9 2009.08
Authorship:Corresponding author Language:Japanese Publishing type:Article, review, commentary, editorial, etc. (other)
頻発するインドネシア・カリマンタン泥炭湿地林火災予知を視野に入れ、時系列衛星画像データ(MODIS)の植生指数(NDVI)の変動から地下水の変動の予測可能性を示唆した。
Other External Funds 【 display / non-display 】
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Advanced and Sustainable Methods on Water Utilization Associated with Greening Potential Evaluation
2018.06 - 2023.03
JST (Japan Science and Technology Agency) - JICA (Japan International Cooperation Agency)
Sawahiko SHIMADA
Authorship:Principal investigator Grant type:Competitive
Past of Commissioned Research 【 display / non-display 】
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Disease Detection of Bananas in the Philippines Using Leaf Surface Reflectance
2016.12
E-Supportlink, Ltd. The General Consignment Study The General Consignment Study
Sawahiko SHIMADA
Authorship:Principal investigator
Presentations 【 display / non-display 】
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Evaluation of impact of earthquake on agriculture in Nepal based on remote sensing International conference
Sekiyama A, Luo K.T, Sarvesh M, Shimada S, Okazawa H, Miwa K and Mihara M
The 7th International Scientific Agriculture Symposium (Agrosym 2016) 2016.10
Event date: 2016.10
Language:English Presentation type:Oral presentation (general)
Venue:ボスニアヘルツェゴビナ
“Agrosym 2016” Best Poster Presentation Award受賞
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The environmental impact of mountaineering in the Mt.Everest region International conference
The 8th Conference on Monitoring and Management of Visitors in Recreation and Protected Areas (MMV8) 2016.09
Event date: 2016.09
Language:English Presentation type:Poster presentation
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Environmental monitoring of tropical peatland and semiarid grassland using remote sensing
2013.11
Event date: 2013.11
Language:Japanese Presentation type:Oral presentation (invited, special)
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反射BRDF特性を用いたモンゴル草地における植生環境の把握
星野慎司・島田沢彦・豊田裕道・関山絢子
計測自動制御学会計測部門・第20回リモートセンシングフォーラム 2013.03 計測自動制御学会計測部門・リモートセンシング部会
Event date: 2013.03
Language:Japanese Presentation type:Oral presentation (general)
Venue:首都大学東京・秋葉原サテライトキャンパス
BRDF計測機器装着スペクトルメータを用い収集したモンゴル草地の反射BRDF特性に関して解析した.
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インドネシア・中央カリマンタンにおける多時期衛星画像データを用いた 熱帯泥炭湿地林の地下水位モニタリング
高見茜・島田沢彦・豊田裕道・高橋英紀・平野高司
計測自動制御学会計測部門・第20回リモートセンシングフォーラム 2013.03 計測自動制御学会計測部門・リモートセンシング部会
Event date: 2013.03
Language:Japanese Presentation type:Oral presentation (general)
Venue:首都大学東京・秋葉原サテライトキャンパス
インドネシア・中央カリマンタンにおいて,植物季節性(フェノロジー)をMODIS-NDVIを用いて解析した.
Committee Memberships 【 display / non-display 】
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Board member
2017
Committee type:Academic society
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日本農業農村工学会 農業農村地理情報システム技士運営委員会
2016.04
Committee type:Academic society
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日本農業農村工学会 編集委員
2015.02 - 2016.09
Committee type:Academic society
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日本沙漠学会 総務委員(Webmaster)
2014.06
Committee type:Academic society
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日本泥炭地学会 役員(交流委員)
2013.10
Committee type:Academic society
Basic stance of industry-university cooperation 【 display / non-display 】
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環境評価の手法技術開発を行っている。産・官・NGOとの連携による環境コンサルティングに関しては、積極的である。
Attractiveness of Research 【 display / non-display 】
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興味を持った事柄を徹底的に調べてみよう。調べた情報を自分の頭で組み立て直す事が重要。