Upcoming Technology in Ocean Observation
Automatic Ocean Observation Systems
Our R&D is aimed to maintain and enhance the ocean observation networks in response to the diversification of observation targets and areas while conserving human resources and reducing the environmental impact related to the observations. In addition, we are responsible for the development of fundamental and universal technologies related to ocean observation systems and sensors to establish quality control technology to support reliable observations.
Compact sensors development
Ocean Observation System development
Underwater sensors development
Activities for improving the accuracy of observation data
To improve the versatility of the developed sensors and ensure the accuracy of observation data, we have established a calibration scheme for oceanographic thermometers traceable to the International System of Units through National standards focusing on ensuring water temperature traceability.
Calibration scheme for oceanographic thermometers traceable to the National standards
Development of underwater antifouling UV-C device
We are developing an antifouling UV-C device for underwater sensors using a new UV plasma-emitting light source. The UV light source has a broad spectral distribution in the UV-C and is characterized by its high bactericidal effect and high luminous efficiency.
We have attached the device to a pH sensor at the Mutsu Institute for Oceanography and are currently conducting tests in the sea. In the test of the device, sufficient biofouling prevention effect was observed when the light was turned on for only 3 minutes per 30 minutes
The leftmost white square is the UV emitting surface, the white plate in the middle is the UV reflector, and the two cylinders are pH sensors.
pH sensor with UV irradiation
pH sensor without UV irradiation
A New Approach to Environmental DNA Sampling and in situ Analysis
Biodiversity surveys and methods for detecting endangered species are evolving today. Instead of collecting individual animals, it is now possible to achieve these goals with high sensitivity by collecting environmental samples, such as seawater, and analyzing the DNA of biological origin, known as "environmental DNA" or eDNA contained in it.
We are developing and evaluating the "eDNA sampler," a device designed to efficiently and automatically collect and store high-quality eDNA samples within the vast marine environment. It has been developed not only for scientific purposes but also for social implementation of eDNA technology by launching a start-up, and to support the advancement of concept of "biodiversity credits". Furthermore, we are developing a new system designed to not only collect eDNA but also enable in situ analysis in the future.
Links：
Related projects, etc.
Bio-oriented Technology Research Advancement Institution (BRAIN) https://agrifoodsbir.jp/team/
NATURE POSITIVE SUSTEINABLE DEVELOPMENT HUB https://www.naturepositive-hub.jp/en/
3D-printed eDNA sampler
12-sample eDNA sampler
eDNA sampler under sea trial
International Tropical Observation Network - operation and technical improvement
RAMA Buoy cruise
Wave Glider deployment
In the tropical Pacific, JAMSTEC and NOAA (USA) operate the TAO/TRITON (*1) array. The RAMA (*2) array in the Indian Ocean is operated by a multi-national effort; JAMSTEC is responsible for the eastern part of this array. These arrays are part of GTMBA (*3) and contribute to the CLIVAR/GOOS (*4). JAMSTEC also participates in the Tropical Pacific Ocean Observing System 2020 project (TPOS2020 project) since its inauguration in 2014. Our new atmospheric ocean observation equipment the Surface Glider and Multipurpose Observation Float (MOF) contributes to the preservation and renewal of the observation system.
- *1:
- TAO (Tropical Atmosphere Ocean)/ TRITON(Triangle Trans-Ocean Buoy Network)
- *2:
- Research Moored Array for Asia-Australia-African Monsoon Analysis and Prediction
- *3:
- Global Tropical Moored Buoy Array
- *4:
- CLIVAR(Climate Variability and Predictability)/GOOS(Global Ocean Observing System)