database for Policy Decision
making for Future climate change(dynamical downscaling over Japan)
1. IDENTIFICATION INFORMATION
Name

database for Policy Decision making for Future climate change (dynamicaldownscaling over Japan)

Metadata
Identifier

d4PDF_RCM20230727072643-DIAS20221121113753-en

2. CONTACT
2.1 CONTACT on DATASET
Name

d4PDF support team

Organization

Program for Risk Information on Climate Change

E-maild4pdf-support@jamstec.go.jp

2.2 CONTACT on PROJECT
2.2.1 Data Integration and Analysis System
Name

DIAS Office

Organization

Japan Agency for Marine-Earth Science and TechnologyAddress3173-25, Showa-Cho, Kanazawa-ku, Yokohama-shi, Kanagawa, 236-0001, Japan

E-maildias-office@diasjp.net

3. DOCUMENT AUTHOR
Nameosamu arakawa

Organization

Program for Risk Information on Climate Change

E-mailarakawa.osamu@jamstec.go.jp

4. DATASET CREATOR
Name

osamu arakawa

Organization

Program for Risk Information on Climate Change

E-mailarakawa.osamu@jamstec.go.jp

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5. DATE OF THIS DOCUMENT
2023-07-27

6. DATE OF DATASET
�publication : 2015-12-21

7. DATASET OVERVIEW
7.1 Abstract(1) This is the dataset simulated by high resolution atmospheric model of which horizontal resolution
is 60km-mesh over the globe (GCM), and 20km over Japan and surroundings (RCM), respetively. Theclimate of the latter half of the 20th century is simulated for 6000 years (3000 years for theJapan area), and the climates 1.5 K(*2), 2 K (*1) and 4 K warmer than the pre-industrial climate
are simulated for 1566, 3240 and 5400 years, respectivley, to see the effect of global warming.
(2) Huge number of ensembles enable not only with statistics but also with high accuracy to estimate
the future change of extreme events such as typoons and localized torrential downpours. In addtion,
this dataset provides the highly reliable information on the impact of natural disasters due toclimate change on future societies.
(3) This dataset provides the climate projections which adaptations against global warming are basedon in various fields, for example, disaster prevention, urban planning, environmetal protection,and so on. It would realize the global warming adaptations consistent not only among issues but
also among regions.
(4) Total size of this dataset is 3 PB (3 × the 15th power of 10 bytes).
(*1) Datasets of the climates 2K warmer than the pre-industorial climate (d4PDF 2K) is available
on 10th August, 2018.
(*2) Datasets of the climates 1.5K warmer than the pre-industorial climate (d4PDF 1.5K) is available
on 8th February, 2022.

7.2 Topic Category(ISO19139)
�climatologyMeteorologyAtmosphere

7.3 Temporal Extent
Begin Date

1950-09-01

End Date

2010-08-31

Temporal
Characteristics

Hourly7.4 Geographic Bounding Box
Northlatitudebound 40West
longitudebound 1052

Eastboundlongitude

170

South
latitudebound 157.5 Grid
Dimension Name

Dimension
Size Resolution Unit
(slice number ofthe dimension)

row19120 (km)column155

20 (km)vertical40

unequally spaced levels (m)7.6 Geographic Description
7.7 Keywords
7.7.1 Keywords on Dataset
Keyword Type

Keyword

KeywordName

thesaurus

theme

GLOBAL CHANGE > Regional climate change

AGU

theme

Models > GCM

GCMD_platform

7.7.2 Keywords on Project
7.7.2.1 Data Integration and Analysis System
Keyword Type

Keyword

KeywordNamethesaurus

theme

DIAS &amp;gt; Data Integration and Analysis System

No_Dictionary

7.8 Online Resource
�Data Download Sitetarget=RCM&lang=jaoftheDIAS(inJapanese):

http://d4pdf.diasjp.net/d4PDF.cgi?

�Data Download Site of the DIAS (in English) : http://d4pdf.diasjp.net/d4PDF.cgi?target=RCM&lang=en
�d4PDF home page (in Japanese) : https://www.miroc-gcm.jp/d4PDF/
�d4PDF home page (in English) : https://www.miroc-gcm.jp/d4PDF/index_en.html
�d4PDF home page (in Japanese) [Mirror1] : http://www.coast.dpri.kyoto-u.ac.jp/d4PDF/
�d4PDF home page (in English) [Mirror1] : http://www.coast.dpri.kyoto-u.ac.jp/d4PDF/index_en.html
�d4PDF home page (in Japanese) [Mirror2] : https://climate.mri-jma.go.jp/d4PDF

3�d4PDF home page (in English) [Mirror2] : https://climate.mri-jma.go.jp/d4PDF/index_en.html

7.9 Data Environmental Information
7.10 Distribution Information
nameversiongrib

1specification

8. DATA PROCESSING
9. DATA REMARKS
10. DATA POLICY
10.1 Data Policy by the Data Provider
DATA RELEASE POLICY OF DATABASE FOR POLICY DECISION MAKING FOR FUTURE CLIMATE CHANGE (d4PDF)
The database called d4PDF (database for Policy Decision making for Future climate change) wasproduced by the joint project of Meteorological Research Institute of Japan Meteorological Agency,Atmosphere and Ocean Research Institute of University of Tokyo, Disaster Prevention ResearchInstitute of Kyoto University, National Institute of Environmental Study, Japan Agency for MarineEarth Science and Technology (JAMSTEC), and University of Tsukuba, under the support of the Programfor Risk Information on Climate Change (SOUSEI, FY2012-2016), the Social Implementation Programon Climate Change Adaptation Technology (SI-CAT, FY2015-2019), Integrated Research Program forAdvancing Climate Models (TOUGOU, FY2017-2021), and the Data Integration and Analysis System (DIAS),funded by the Ministry of Education, Culture, Sports, Science and Technology (MEXT). The EarthSimulator was used for building up the database under "Strategic Project with Special Support" ofJAMSTEC. Users can access d4PDF via the data server maintained by DIAS.
Terms and Conditions
1. Individual users must register their name, affiliation, email-address and purpose of use before
access to the database will be permitted.
2. Individual users should not redistribute the data to any third party.
3. The source of the database should be duly acknowledged in scientific and technical papers,publications, press releases and other communications in case of using the data.
Example:This study used the database for policy decision making for future climate change (d4PDF) which wasproduced with the Earth Simulator under corporations among science programs (SOUSEI, TOUGOU, SI-CAT,DIAS) sponsored by the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.
4. Individual users provide the joint project members (email to d4pdf-support@jamstec.go.jp) a copyof their scientific or technical papers, publications, press releases or other communications incase of using the data (recommended).

4Disclaimer
The joint project members are not responsible for any damage that may result from their use.
Intellectual property
The intellectual property rights of the database belong exclusively to the joint project members.

10.2 Data Policy by the Project
10.2.1 Data Integration and Analysis System
If data provider does not have data policy, DIAS Terms of Service (https://diasjp.net/en/terms/)
and DIAS Privacy Policy (https://diasjp.net/en/privacy/) apply.
If there is a conflict between DIAS Terms of Service and data provider's policy, the data provider'spolicy shall prevail.

11. LICENSE
12. DATA SOURCE ACKNOWLEDGEMENT
12.1 Acknowledge the Data Provider
This study used d4PDF produced with the Earth Simulator jointly by science programs (SOUSEI, TOUGOU,SI-CAT, DIAS) of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.

12.2 Acknowledge the Project
12.2.1 Data Integration and Analysis System
If you plan to use this dataset for a conference presentation, paper, journal article, or reportetc., please include acknowledgments referred to following examples. If the data provider describes
examples of acknowledgments, include them as well.
" In this study, [Name of Dataset] provided by [Name of Data Provider] was utilized. This dataset
was also collected and provided under the Data Integration and Analysis System (DIAS), which wasdeveloped and operated by a project supported by the Ministry of Education, Culture, Sports, Scienceand Technology. "13. REFERENCES

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