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from Dec. 1, 2011
Total : 257440257440257440257440257440257440

Polar Environment Data Science Center

National Institute of Polar Research

Joint Supprt-Center for Data Science Research

Research Organization of Information and Systems

Sience Field

Meteorology and Glaciology => Meteorology and Sea ice in the Southern Ocean
Project => Meteorology and Glaciology

Overview  
Title Antarctic ship-borne ceilometer
Sub-Title
Data Summary This is the ship-borne ceilometer data over the northwestern Pacific and the Indian Southern Ocean, and at Syowa Station, Antarctica. The observations were made during ten annual cruises of the icebreaker Shirase for the Japanese Antarctic Research Expedition (JARE) from November to April. The first cruise for the observation departed Tokyo, Japan in November 2010. Since then, the observations have been carried out every year, and the final observation cruise departed in November 2019. The ceilometer emits light vertically upward and measures the intensity of backscattered light from the atmosphere. The records include the vertical profiles of the backscatter intensity, analyzed cloud base heights for each profile, and observational condition such as the time, the location, etc.
Our observation is mainly for the Southern Ocean and the Antarctic region, but also includes observation data over the North Pacific Ocean south of Japan.
About Observation  
Spatial Coverage
Data Location over the Indian sector of the Southern Ocean, Syowa Station, over the mid-latitudes of the western Pacific Ocean
Observaion Period /
Temporal Coverage		 2010-11-6 - 2020-3-22
Data Period 2010-11-6 - 2020-3-22
Observation Photo
Data Details  
Data Name Antarctic ship-borne ceilometer
Data Format Plain text partially with HEX ASCII character set
Data Recording /
Acquisition Sampling		 See the paper below: Hirasawa, N., Shiobara, M., Murayama, T., and Kobayashi, H. (2022): Ship-borne ceilometer measurements over the northwestern Pacific and the Indian sector of the Southern Ocean, and at Syowa Station, Antarctica, in the summers of 2010/11 to 2019/20. Pol. Data Jour., 6, 66-79.
Observation Instruments Vaisala model CL51
Sample Data A time-height section of the backscatter coefficients on Feb 22, 2020
Publication  
Publication method ceilometer on Shirase
Data Policy Cite the paper below
Hirasawa, N., Shiobara, M., Murayama, T., and Kobayashi, H. (2022): Ship-borne ceilometer measurements over the northwestern Pacific and the Indian sector of the Southern Ocean, and at Syowa Station, Antarctica, in the summers of 2010/11 to 2019/20. Pol. Data Jour., 6, 66-79.
https://scidbase.nipr.ac.jp/modules/metadata/index.php?content_id=393&ml_lang=en
Data Center
(Contact Person)		 National Institute of Polar Research (Naohiko Hirasawa)
E-mail hira.n (at) nipr.ac.jp
Related Organization
Scientific Results /
Publication		 Kuji, M., Fujimoto, R., Miyagawa, M., Funada, R., Hori, M., Kobayashi, H., Koga, S., Matsushita, J., and Shiobara, M. Cloud fractions estimated from shipboard whole-sky camera and ceilometer observations. Trans. JSASS Aerospace Tech. Japan. 2016, 14, 7-13.
Kuji, M., Murasaki, A., Hori, M., and Shiobara M. Cloud fractions estimated from shipboard whole-sky camera and ceilometer observations between East Asia and Antarctica. J. Meteor. Soc. Japan. 2018, 96, 201-214. doi:10.2151/jmsj.2018-025.
Citation Information
Acknowledgements:Please cite with DOI when and where appropriate. Also please acknowledge the National Institute of Polar Research.
DOI 10.17592/002.2022100393
Creator Naohiko Hirasawa
Publisher National Institute of Polar Research
Copyright @ National Institute of Polar Research