OPTICS & PHOTONICS International Congress 2024

Presentation information

LSSE2024 » Oral Presentation

Space Technology 5

Fri. Apr 26, 2024 9:30 AM - 10:30 AM 316 (Pacifico Yokohama Conference Center)

Session Chair: Katsushi Fujii (RIKEN), Norihito Saito (RIKEN)

10:00 AM - 10:30 AM

[LSSE12-02(Invited)] First application of laser melting method to ice core sampling to study climate change

*Yuko Motizuki1, Yoichi Nakai1, Kazuya Takahashi1, Junya Hirose1, Yu Vin Sahoo1, Masaki Yumoto2,3, Masayuki Maruyama2, Michio Sakashita2, Kiwamu Kase2, Satoshi Wada2, Hideaki Motoyama4, Yasushige Yano1 (1. Astro-Glaciology Laboratory, RIKEN Nishina Center, 2. Photonics Control Technology Team, RIKEN Center for Advanced Photonics, 3. Innovative Laser Processing Group, National Institute of Advanced Industrial Science and Technology, 4. National Institute of Polar Research)

We developed a novel Laser Melting Sampler (LMS) for ice cores to measure the stable water isotope ratios (δ18O and δD) as temperature proxies of the past. A segment of an Antarctic ice core, using the LMS, was demonstrated to have been discretely sampled with a depth resolution as small as 3 mm. In this talk, we will deliver the key and merit of using laser melting in ice core science.

Motizuki Y, et al. Journal of Glaciology. 2023:1-7. doi:10.1017/jog.2023.52

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