In April 2006, relevant departments of the University of Tokyo established a collaborative initiative among researchers from various fields, such as public policy, global earth observation, information science and technology, disasters, and agriculture, which was named The Earth Observation Data Integration & Fusion Research Initiative (EDITORIA).

With the support of Japanese Government as one of the key national projects, EDITORIA has developed "Data Integration and Analysis System" (DIAS) - a demonstrative data system that effectively and efficiently integrates global observation data and information and has been disseminating novel research breakthroughs in the understanding, prediction and adaptation to global environmental changes, particularly with regards to changes in the water cycle and its influence on water management systems and society at the global- to river basin-scale.

In its second stage of development from 2011, the DIAS project has been reformed to the Data Integration and Analysis System Program (DIAS-P) with a goal to develop an operational framework by 2016. Phase II started from 2011, with the name changed to the Data Integration & Analysis System Program (DIAS-P). During this phase, the further advancement and expansion of functionality were carried out to apply DIAS as a social and public infrastructure. Phase III has been underway since 2016, as the Program to Promote the Development of Earth Environmental Information Platform. This project focuses on developing and operating the long-term stable system as a social platform with the aim of providing the service and operating the applications, which would help solve various social problems, including climate change adaptation and mitigation.

The integration of data and information on the water cycle and water-related fields - such as climate, food, energy, health, biodiversity, disasters, and economics - will enable the promotion of a holistic understanding of the changes in these integrated system, improvement of prediction accuracy, quantitative evaluation of society impact, and establishment of appropriate adaptations, which are all essential elements for supporting the development of a sustainable society from both academic and practical perspectives.

In June 2014, a corporate sponsored program “Water Cycle Data Integrator (WCI)” has been launched at the Department of Civil Engineering, the University of Tokyo with a support of Nippon Koei Co. Ltd. Until May 2017, it has been carried out to pursue exploitation of the DIAS information infrastructure for integration of various data and information on the water cycle and water-related fields, and to implement the system in society through domestic and international arrangements and generate public benefits as well as provide systematic education using scientific knowledge acquired through data integration and its implementation.

With the success of the “Water Cycle Data Integrator (WCI)” program supported by a single company during June 2014 – May 2017, an extended WCI program was launched in October 2017 with the support of six corporate members; Asia Air Survey Co. Ltd., CTI Engineering Co. Ltd., TOKEN C.E.E. Consultants Co. Ltd., NIPPON KOEI Co. Ltd., PASCO Co., Yachiyo Engineering Co. Ltd. This new program aims to promote research activities, education, and operational implementation of the data integration approach for addressing water cycle related issues.



Water Cycle Data Integrator (WCI) (June 2014 - May 2017)


Department of Civil Engineering
The University of Tokyo

Academic-Industry Collaboration Program

Water Cycle Data Integrator

Contact Us
  • Room #128, Engineering Bldg #1
    7-3-1 Hongo, Bunkyo-ku,
    Tokyo 113-8656, Japan
  • TEL: +81-3-5841-6108
    FAX: +81-3-5841-6130
  • Email: