MLIT XRAIN dataset


Papers citing this dataset
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GCMD Science Keywords
[Atmosphere ] [Precipitation ]

IDENTIFICATION INFORMATION

Name MLIT XRAIN dataset
Metadata Identifier MLIT_XRAIN20230727072246-DIAS20221121113753-en

CONTACT

CONTACT on DATASET

Name Ministry of Land, Infrastructure, Transport and Tourism Water and Disaster Management Bureau River Planning Division River Information Policy Planning Office
Organization Ministry of Land, Infrastructure, Transport and Tourism Water and Disaster Management Bureau River Planning Division River Information Policy Planning Office
E-mail hqt-dias@gxb.mlit.go.jp

CONTACT on PROJECT

Data Integration and Analysis System

Name DIAS Office
Organization Japan Agency for Marine-Earth Science and Technology
Address 3173-25, Showa-Cho, Kanazawa-ku, Yokohama-shi, Kanagawa, 236-0001, Japan
E-mail dias-office@diasjp.net

DOCUMENT AUTHOR

Name Ministry of Land, Infrastructure, Transport and Tourism Water and Disaster Management Bureau River Planning Division River Information Policy Planning Office
Organization Ministry of Land, Infrastructure, Transport and Tourism Water and Disaster Management Bureau River Planning Division River Information Policy Planning Office

DATASET CREATOR

Name Ministry of Land, Infrastructure, Transport and Tourism Water and Disaster Management Bureau River Planning Division River Information Policy Planning Office
Organization Ministry of Land, Infrastructure, Transport and Tourism Water and Disaster Management Bureau River Planning Division River Information Policy Planning Office

DATE OF THIS DOCUMENT

2023-07-27

DATE OF DATASET

  • publication : 2010-07-05

DATASET OVERVIEW

Abstract

MLIT_XRAIN is a general name of the databases of physical quantities, including areal precipitation, observed by the X-band multi-parametric (X-MP) radar raingauges and C-band multi-parametric (C-MP) radar raingauges, owned by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT).

”MLIT_XRAIN” is composed of the following 4 types of data on DIAS:

1) ”MLIT_XRAIN_raw” data are physical quantities directly measured by each X-MP radar, and are composed of eight parameters, including received power, differential phase (inter-polarization phase difference), etc.

2) ”MLIT_XRAIN_intermediated” data are the primarily processed data from the raw data and includes five parameters for each radar, such as radar reflectivity factors, specific differential phase, etc.

3) ”MLIT_XRAIN_composite” data are the radar-derived precipitation data estimated from synthesized radar data with all X-band multi-parametric (X-MP) radars of MLIT, mainly covering major city areas. The number of X-MP radars was 11 at first, and finally increased to 39, and the period of the archived composite database is until February 2020. Any C-band MP (C-MP) radars’ data has not been utilized in this database.

4) ”MLIT_XRAIN_CXMP_composite“ data are the radar-derived precipitation data estimated from the synthesized radar data with all the C-MP & X-MP radars of MLIT, the covering area of which has been being gradually extended to almost the entire of Japan. This composite database has been archived since June 2017.

If you need not directly measured radar signals but usual precipitation data, please use the MLIT_XRAIN_CXMP_composite or MLIT_XMP_XRAIN_composite.

In the application for permission form, select "composite".

For more information on XRAIN and synthetic radar rainfall, please refer to the "Radar Rain Gauge for Practical Engineers" (in Japanese) on the website of the River Information Center of Japan, the URL of which is listed under "Online Information" below.

Topic Category(ISO19139)

  • climatologyMeteorologyAtmosphere

Temporal Extent

Begin Date 2010-07-05
End Date Under Continuation

Geographic Bounding Box

North bound latitude 43.922222
West bound longitude 129.550000
Eastbound longitude 142.570833
South bound latitude 30.833333

Keywords

Keywords on Dataset

Keyword Type Keyword Keyword thesaurus Name
theme [Atmosphere ] > [Precipitation ] GCMD_science

Keywords on Project

Data Integration and Analysis System
Keyword Type Keyword Keyword thesaurus Name
theme DIAS > Data Integration and Analysis System No_Dictionary

Online Resource

Data Environmental Information

# The data of the Ichihazama radar site do not exist after December 14, 2015, because of removal. # The data of the Ichinoseki radar site do not exist after February 13, 2017, because of removal. # From July 9, 2018 the following 3 radar sites were added. 1. Takanosu (Akita Pref.) : X-band MP radar, 2. Myoujinnsan (Ehime Pref.): C-band MP radar, 3. Happonngiyama (Nagasaki Pref.): C-band MP radar. # From October27, 2020, the following 1 radar site was added. 1. Hakodake (Hokkaido Pref.): C-band MP radar. # From January 24, 2021, the following 1 radar site was added. 1. Houdatsusan (Hokuriku): C-band MP radar. # From August 29, 2022, the following 1 radar site was added. 1. Muriyama (Hokkaido) : C-band MP radar.

DATA POLICY

Data Policy by the Data Provider

1. XRAIN data sets are to be used only for scientific research or educational purposes, and shall not be used for any other purposes, including for profit, than stated in the application form.

2. User shall provide the name, affiliation, contact information of the person responsible for the research group that will use this data, as well as the purpose of of use.

Unless there are special circumstances, the period of use shall be limited to three years in principle.

However, if it is confirmed that the terms of use have been violated, the use of the data may be suspended regardless of the period of use.

3. After the end of the period of use of this data or the suspension, user shall discontinue to use and promptly destroy this data.

However, this shall not apply to the retention of this data as the basis for conference presentations, thesis presentations, journal publications, reports, etc. using this data.

4. Any modification or change of the original XRAIN data sets is prohibited.

5. User shall not provide the original XRAIN data sets to any third party outside of the research group.

6. If user has made a conference presentation, paper presentation, journal presentation, or report using this data, submit a copy of the publication (reprint in the case of a paper, or a copy of the abstract in the case of an oral or poster presentation) to the contact and mailing address below.

* Contact

River Information Planning Office, River Planning Division, Water Management and Land Conservation Bureau, Ministry of Land, Infrastructure, Transport and Tourism.

Chuo Joint Government Building No. 3,

2-1-3 Kasumigaseki, Chiyoda-ku, Tokyo 100-8918, Japan

Email: hqt-dias@gxb.mlit.go.jp

User shall also submitt to the address specified in the Terms of Use of the Project.

7. User shall cooperate with inquiries from the data provider concerning the contents of materials using this data (materials submitted to the data provider in accordance with 6.) about the documents submitted by the rule 5.

<Disclaimer>

1. Data provider shall not liable for any losses or any damage from the use of XRAIN data sets.

2. Data provider may discontinue to provide XRAIN data sets without any prior notice.

3. Data provider does not support any additional processing or analysis of the provided data.

Data Policy by the Project

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's policy shall prevail.

DATA SOURCE ACKNOWLEDGEMENT

Acknowledge the Data Provider

Whenever XRAIN data sets are used for any academic presentations, and any publication of scientific results, the author(s) shall specify the source of the Products.

Example:

"XRAIN data sets used for this study are provided by Ministry Land, Infrastructure, transport and Tourism, Japan"

Acknowledge the Project

Data Integration and Analysis System

If you plan to use this dataset for a conference presentation, paper, journal article, or report etc., 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 was developed and operated by a project supported by the Ministry of Education, Culture, Sports, Science and Technology. "

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