AMY Project CTCZ-Pilot dataset

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Name AMY Project CTCZ-Pilot dataset
Metadata Identifier AMY_CTCZ_Pilot_dataset20221122142344-AMY20130909130838-DIAS20221121113753-en



Name G. S> Bhat
Organization Indian Institute of Science Bangalore India
Address Centre for Atmospheric & Oceanic Sciences, Bengaluru, 560012, India
TEL +918022933071
FAX +918023600865


Asian Monsoon Year Project

Name Prof. Jun Matsumoto, DSc
Organization Dept. of Geography, Tokyo Metrop. Univ.
Address Minami-Osawa 1-1, Hachioji, Tokyo, 192-0397, Japan
TEL 042-677-2596
FAX 042-677-2596

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


Name G. S> Bhat
Organization Indian Institute of Science Bangalore India


Name G. S> Bhat
Organization Indian Institute of Science Bangalore India




  • revision : 2014-03-05



This data set contains radiosonde data collected over the Bay of Bengal from Indian research ship ORV Sagar Kanya during July-August 2009. This cruise was conducted as part of India's CTCZ Programme. Vaisala RS90 GPS radiosondes were used. Owing to problem with Vaisala receiver program, wind data was not available initially, which was set right after Vaisala provided an update.

Topic Category(ISO19139)

  • climatologyMeteorologyAtmosphere

Temporal Extent

Begin Date 2009-07-19
End Date 2009-08-15
Temporal Characteristics Mostly 12 hourly, but on few days more frequently and daily on others.

Geographic Bounding Box

North bound latitude 21N
West bound longitude 85E
Eastbound longitude 91E
South bound latitude 11N


Dimension Name Dimension Size (slice number of the dimension) Resolution Unit
vertical upto 25 km 5 (hPa)

Geographic Description

Bay of Bengal


Keywords on Dataset

Keyword Type Keyword Keyword thesaurus Name
programme name CTCZ upper air data

Keywords on Project

Asian Monsoon Year Project
Keyword Type Keyword Keyword thesaurus Name
place Asia Country
Data Integration and Analysis System
Keyword Type Keyword Keyword thesaurus Name
theme DIAS > Data Integration and Analysis System No_Dictionary

Online Resource

Distribution Information

name version specification
txt 1.0


Data Processing (1)

General Explanation of the data producer's knowledge about the lineage of a dataset

Followed the standard radiosonde launch procedure. Before each launch, radiosonde temperature and humidity were compared with a reference sensor (Rotronics make) and difference corrected.

Original data received at 2 s interval are interpolated at 5 hPa intervals.


Temperature and humidity data are as per Vaisala specifications. At surface radiosonde and AWS data have been intercompared and agreement is good. Balloon travels in the ship wake initially and then moves away. So, wind data below 50 m may not be very reliable owing to disturbace to flow by the ship structure.


Data Policy by the Data Provider

This data can be used for research purposes only.

Data Policy by the Project

Asian Monsoon Year Project

1. No financial implications are involved for the AMY data exchange.

2. Commercial use and exploitation of AMY data is prohibited.

3. Any re-export or transfer of the original data received from the CDA archive to a third party is prohibited.

4. The origin of AMY data being used for publication of scientific results must be acknowledged and referenced in the publication.

5. AMY data users are strongly encouraged to establish direct contact with data providers for complete interpretation and analysis of data for publication purposes.

6. Co-authorship of data users and AMY Projects’ Principle Investigators on papers making extensive use of AMY data is justifiable and highly recommended.


@Whenever AMY data distributed by CDA are being used for publication of scientific results, the author(s) shall sent a copy of the respective publication, preferably in electronic form, to the CDA in order to build up a AMY publication library. CDA will maintain this library and will it make public, for example via CDA's web site, for a continuous monitoring of the AMY data applications and AMY's achievements in general.

Data Integration and Analysis System

If data provider does not have data policy, DIAS Terms of Service ( and DIAS Privacy Policy ( apply.

If there is a conflict between DIAS Terms of Service and data provider's policy, the data provider's policy shall prevail.


Acknowledge the Data Provider

In the acknowledgement following needs to be stated. "This data was collected as part of the CTCZ programme supported by the Department of Science and Technlogy and Ministry of Earth Sciences, Govt. India."

Acknowledge the Project

Asian Monsoon Year Project

Whenever AMY data distributed by the CDA are being used for publication of scientific results, the data's origin must be acknowledged and referenced. A minimum requirement is to reference AMY and the CDA. If only data from one observation site (or a limited number of observation sites) has been used, additional acknowledgement to the observation site(s) and its (their) maintaining institutions or organizations shall be given.

Maintaining continuous, high-quality measurements, performing quality and error checking procedures, and submitting data and related documentation to the CDA will require substantial financial and logistical efforts of the data providers. The necessary support for these observation site activities originate from a variety of international, national and institutional sources. The CDA shall make proper reference to all AMY data providers and, if required, to their funding sources.

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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This project is supported by " Data Integration & Analysis System " funded by MEXT, Japan
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