Sawada Ken 澤田謙

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澤田謙サワダケン

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Researcher Number	10847205
Affiliation (Current)	2025: 気象庁気象研究所, 気象観測研究部, 主任研究官
Affiliation (based on the past Project Information) *help	2019 – 2023: 気象庁気象研究所, 気象観測研究部, 主任研究官
Review Section/Research Field	Principal Investigator 0204:Astronomy, earth and planetary science, and related fields Except Principal Investigator Basic Section 17020:Atmospheric and hydrospheric sciences-related
Keywords	Principal Investigator 最適化問題 / 水蒸気量 / データ同化 / スピンアップ / スピンダウン / 降水再現性 / 制約付き最適化 / 変分法データ同化 Except Principal Investigator 豪雨の発達機構 / アンサンブル予測 … More / 水物質の背景誤差 / 数値天気予報 / 深層学習 / 集中豪雨 / データ同化 Less

Research on hydrometeors assimilation methods to elucidate the mechanisms of torrential rain development
- Principal Investigator
  
  Ikuta Yasutaka
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 17020:Atmospheric and hydrospheric sciences-related
- Research Institution
  Japan, Meteorological Research Institute
Introduction of water vapor balance method into variational assimilation scheme to solve the spin-down problem.Principal Investigator
- Principal Investigator
  
  Sawada Ken
- Project Period (FY)
  2019 – 2022
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Review Section
  
  0204:Astronomy, earth and planetary science, and related fields
- Research Institution
  Japan, Meteorological Research Institute

All 2023 2022 2021 2020 2019

All Journal Article Presentation

[Journal Article] Determining the Impact of Boundary Layer Schemes on the Secondary Circulation of Typhoon Faxai Using Radar Observations in the Gray Zone2023
- Author(s)
  Ikuta Yasutaka、Sawada Masahiro、Satoh Masaki
- Journal Title
  
  Journal of the Atmospheric Sciences
  
  Volume: 80 Issue: 4 Pages: 961-981
- DOI
  10.1175/jas-d-22-0169.1
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K03669, KAKENHI-PROJECT-20H01967
[Journal Article] Impacts of an Urban Canopy Scheme and Surface Observation Data on a Heavy Rain Event through Data Assimilation2023
- Author(s)
  Sawada Ken、Seino Naoko、Kawabata Takuya、Seko Hiromu
- Journal Title
  
  SOLA
  
  Volume: 19B Issue: Special_Edition Pages: 1-8
- DOI
  10.2151/sola.19B-001
- ISSN
  1349-6476
- Language
  Japanese
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K23468
[Journal Article] Effects of an Urban Canopy Scheme and Surface Observation Data on a Heavy Rain Event through Data Assimilation2022
- Author(s)
  SAWADA Ken, SEINO Naoko, KAWABATA Takuya, and SEKO Hiromu
- Journal Title
  
  WGNE Research Activities in Earth System Modelling
  
  Volume: 52 Pages: 115-116
- Open Access
- Data Source
  KAKENHI-PROJECT-19K23468
[Journal Article] A Constraint Method for Supersaturation in a Variational Data Assimilation System2021
- Author(s)
  Sawada Ken、Honda Yuki
- Journal Title
  
  Monthly Weather Review
  
  Volume: 149 Issue: 11 Pages: 3707-3724
- DOI
  10.1175/mwr-d-20-0357.1
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K23468
[Journal Article] Effect of supersaturation constraint in a variational data assimilation system2021
- Author(s)
  Sawada,K., Y. Honda
- Journal Title
  
  WGNE Research Activities in Earth System Modelling
  
  Volume: 51
- Open Access
- Data Source
  KAKENHI-PROJECT-19K23468
[Presentation] 変分法メソ解析システムにおける過飽和制約の効果2021
- Author(s)
  澤田謙
- Organizer
  日本気象学会2021年度秋季大会
- Data Source
  KAKENHI-PROJECT-19K23468
[Presentation] Effects of suppressing supersaturation in a variational data assimilation system2021
- Author(s)
  Ken Sawada, Yuki Honda
- Organizer
  WCRP-WWRP Symposium on Data Assimilation and Reanalysis
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K23468
[Presentation] 変分法同化システムにおける過飽和制約の導入2020
- Author(s)
  澤田謙
- Organizer
  第一回先端的データ同化と巨大アンサンブル手法に関する研究会
- Data Source
  KAKENHI-PROJECT-19K23468
[Presentation] 変分法同化システムにおける過飽和制約の導入2020
- Author(s)
  澤田謙
- Organizer
  日本気象学会2020年度春季大会
- Data Source
  KAKENHI-PROJECT-19K23468
[Presentation] 変分法同化システムへの過飽和制約の導入2020
- Author(s)
  澤田謙
- Organizer
  第22回非静力学モデルに関するワークショップ
- Data Source
  KAKENHI-PROJECT-19K23468
[Presentation] 過飽和制約の影響調査について2020
- Author(s)
  澤田謙
- Organizer
  ポスト京重点課題4サブ課題A 2019年度第3回研究連絡会
- Data Source
  KAKENHI-PROJECT-19K23468
[Presentation] スピンダウン問題と過飽和制約について2019
- Author(s)
  澤田謙
- Organizer
  ポスト京重点課題4サブ課題A 2019年度第1回研究連絡会
- Data Source
  KAKENHI-PROJECT-19K23468
[Presentation] スピンダウンと過飽和抑制2019
- Author(s)
  澤田謙
- Organizer
  2019年度第2回高解像度豪雨予測とアンサンブル同化摂動手法に関する研究会(第8回アンサンブルデータ同化摂動に関する研究会)
- Data Source
  KAKENHI-PROJECT-19K23468
[Presentation] スピンダウンと過飽和抑制2019
- Author(s)
  澤田謙
- Organizer
  第21回非静力学モデルに関するワークショップ
- Data Source
  KAKENHI-PROJECT-19K23468
[Presentation] スピンダウン問題と過飽和制約について2019
- Author(s)
  澤田謙
- Organizer
  2019年度第1回高解像度豪雨予測とアンサンブル同化摂動手法に関する研究会(第7回アンサンブルデータ同化摂動に関する研究会)
- Data Source
  KAKENHI-PROJECT-19K23468
[Presentation] スピンダウンと過飽和抑制2019
- Author(s)
  澤田謙
- Organizer
  日本気象学会2019年度秋季大会
- Data Source
  KAKENHI-PROJECT-19K23468

1. Ikuta Yasutaka (80878249)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
2. 堀田大介 (60805365)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Sawada Ken 澤田 謙

澤田 謙 サワダ ケン

Research Projects

Research Products

Co-Researchers

Research on hydrometeors assimilation methods to elucidate the mechanisms of torrential rain development

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Introduction of water vapor balance method into variational assimilation scheme to solve the spin-down problem.Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Determining the Impact of Boundary Layer Schemes on the Secondary Circulation of Typhoon Faxai Using Radar Observations in the Gray Zone2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Impacts of an Urban Canopy Scheme and Surface Observation Data on a Heavy Rain Event through Data Assimilation2023

Author(s)

Journal Title

DOI

ISSN

Language

Data Source

[Journal Article] Effects of an Urban Canopy Scheme and Surface Observation Data on a Heavy Rain Event through Data Assimilation2022

Author(s)

Journal Title

Data Source

[Journal Article] A Constraint Method for Supersaturation in a Variational Data Assimilation System2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Effect of supersaturation constraint in a variational data assimilation system2021

Author(s)

Journal Title

Data Source

[Presentation] 変分法メソ解析システムにおける過飽和制約の効果2021

Author(s)

Organizer

Data Source

[Presentation] Effects of suppressing supersaturation in a variational data assimilation system2021

Author(s)

Organizer

Data Source

[Presentation] 変分法同化システムにおける過飽和制約の導入2020

Author(s)

Organizer

Data Source

[Presentation] 変分法同化システムにおける過飽和制約の導入2020

Author(s)

Organizer

Data Source

[Presentation] 変分法同化システムへの過飽和制約の導入2020

Author(s)

Organizer

Data Source

[Presentation] 過飽和制約の影響調査について2020

Author(s)

Organizer

Data Source

[Presentation] スピンダウン問題と過飽和制約について2019

Author(s)

Organizer

Data Source

[Presentation] スピンダウンと過飽和抑制2019

Author(s)

Organizer

Data Source

[Presentation] スピンダウンと過飽和抑制2019

Author(s)

Organizer

Data Source

[Presentation] スピンダウン問題と過飽和制約について2019

Author(s)

Sawada Ken 澤田謙

澤田謙サワダケン