Parallelization of a next generation large/local-scale flood model and its application to now-casting

下一代大/局部洪水模型的并行化及其在临近预报中的应用

• 批准号: 24760393
• 负责人: KOBAYASHI Kenichiro
• 金额: $ 2.83万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24760393/
• 关键词: 洪水モデル; 降雨流出・洪水氾濫; リアルタイム洪水予測; 浅水流方程式; 不定流; レーダ降雨; 並列計算; 高速計算; 広域分布型降雨流出・洪水氾濫モデル; 淀川モデル; リアルタイム洪水予測システム; 領域洪水モデル; 避難行動モデル; 広域避難

The basic research regarding the parallelization of a flood model and real-time flood forecasting system has been carried out in the framework of this project. First, a Yodogawa river distributed rainfall-runoff/flood-inundation (DRR/FI) model is developed. The resolution of the Yodogawa DRR/FI model is 250m (427 times 565=241255 nodes). The CPU time was around 5 min and 30 sec. for 1 hour simulation in the beginning of the research even if a fastest commercial CPU Intel Xeon is used. However, this CPU time is reduced down to 1 min. and 30 sec. by the Open MP thread parallelization with 14 cores of the Intel Xeon. Afterwards, through the cooperation with the SPIRE (Strategic Programs for Innovative Research), the Yodogawa DRR/FI model is transferred to the K supercomputer, then the CPU time is reduced down to several tens of seconds. On the same time, a prototype of the Yodogawa real time flood forecasting system with the input of 1km JMA reanalysis radar rainfall is developed.

在本项目的框架下，开展了洪水模型和实时洪水预报系统并行化的基础研究。首先，淀川河分布式径流/洪水淹没（DRR/FI）模型的开发。淀川DRR/FI模型的分辨率为250米（427乘以565=241255个节点）。CPU时间约为5分30秒。即使使用最快的商用CPU Intel Xeon，也可以在研究开始时进行1小时的模拟。然而，这个CPU时间减少到1分30秒。通过Intel Xeon的14核Open MP线程并行化。之后，通过与SPIRE（创新研究战略计划）的合作，淀川DRR/FI模型被转移到K超级计算机上，然后CPU时间被缩短到几十秒。同时，开发了以1 km JMA再分析雷达雨量为输入的淀川真实的实时洪水预报系统原型。

项目成果

Evaluation of water retention capacity and flood control function of the forest catchment

森林流域保水能力和防洪功能评价

• 发表时间: 2013
• 期刊: Journal on Food, Agriculture and Society
• 作者: Nobuhiko Sawai;Kaoru Takara and Kenichiro Kobayashi
• 通讯作者: Kaoru Takara and Kenichiro Kobayashi

流出・氾濫モデルと避難モデルの統合による大阪市の広域避難に関する一考察

整合泄漏/洪水模型和疏散模型的大阪市大范围疏散研究

• 发表时间: 2013
• 作者: Minami;Hirotsugu;Akihiro Hachikubo;Hirotoshi Sakagami;Satoshi Yamashita;Yusuke Soramoto;Tsuyoshi Kotake;Nobuo Takahashi;Hitoshi Shoji;Tatyana Pogodaeva;Oleg Khlystov;Andrey Khabuev;Lieven Naudts;Marc De Batist;石橋健，古田均，中津功一朗;大窪和明，鈴木春菜;中嶌一憲・生川雅紀;中條壮大・藤木秀幸・金洙列・森信人・澁谷容子・安田誠宏;小林健一郎
• 通讯作者: 小林健一郎

Development of a Yodogawa River Distribute Rainfall-Runoff/Flood-inundation model for flood risk management

开发用于洪水风险管理的淀川分布降雨径流/洪水淹没模型

• 发表时间: 2012
• 作者: Kobayashi;K. and Takara;K
• 通讯作者: K

An Ensemble Flood Simulation For The Dam Preliminary Release Operation In Japan Using JMA-NHM Rainfall

使用 JMA-NHM 降雨对日本大坝初步释放操作进行整体洪水模拟

• 发表时间: 2013
• 期刊: Proceedings of the 35th IAHR world conference
• 作者: Kenichiro Kobayashi;Shigenori Otsuka;APIP and Kazuo Saito
• 通讯作者: APIP and Kazuo Saito

Flood Scale Change on Yodogawa River Catchment By Isewan Typhoon Pseudo-Global Warming Experiment

伊势湾台风拟全球变暖实验对淀川流域洪水规模的变化

• 发表时间: 2014
• 作者: Yokota;M.;N. Hashimoto;Kenichiro Kobayashi
• 通讯作者: Kenichiro Kobayashi