Refer to the instrument model below in order to see some scientific studies deploying our instruments.

Electromagnetic current meter INFINITY-EM (AEM-USB)

(1) Sugiyama S., Sawagaki T., Fukuda T., Aoki S., (2014) Active water exchange and life near the grounding line of an Antarctic outlet glacier. Earth and Planetary Science Letters, 399, 52 – 60. DOI: 10.1016/j.epsl.2014.05.001

(2) Golbuu Y., Gouezo, M., Kurihara, H. et al., (2016) Long-term isolation and local adaptation in Palau’s Nikko Bay help corals thrive in acidic waters. Coral Reefs, 35, 909 – 918. DOI: 10.1007/s00338-016-1457-5

(3) Le Nguyen H.T., Vo Luong H.P., (2019) Erosion and deposition processes from field experiments of hydrodynamics in the coastal mangrove area of Can Gio, Vietnam. Oceanologia, 61, 252 – 264. DOI: 10.1016/j.oceano.2018.11.004

Yoing Ocean Data Acquisition Profiler (YODA)

(1) Masunaga E. & Yamazaki, H. (2014) A new tow-yo instrument to observe high-resolution coastal phenomena. Journal of Marine Systems, 129, 425 – 436. DOI: 10.1016/j.jmarsys.2013.09.005

(2) Masunaga E., Homma H., Yamazaki H., Fringer O. B., Nagai T., Kitade Y., Okayasu A., (2015) Mixing and sediment resuspension associated with internal bores in a shallow bay. Continental Shelf Research, 110, 1, 85 – 99. DOI: 10.1016/j.csr.2015.09.022

(3) Masunaga E., Fringer, O.B., Yamazaki, H., (2016) An observational and numerical study of river plume dynamics in Otsuchi Bay, Japan. Journal of Oceanography, 72, 3 –21. DOI: 10.1007/s10872-015-0324-2

(4) Kim N. H., Hwang J. H., Hyeon K. D., (2018) Evaluation of Mixing and Stratification in an Estuary of Korea, Journal of Coastal Research, 85, 96 – 100. DOI: 10.2112/SI85-020.1

(5) Kim N. H., Pham V. S., Hwang J. H., Won N. I., Ha H. K., Im J., Kim Y., (2018) Effects of seasonal variations on sediment-plume streaks from dredging operations, Marine Pollution Bulletin, 129, 1, 26 – 34. DOI: 10.1016/j.marpolbul.2018.02.014

Multi-excitation fluorometer INFINITY-ME (Multi-Exciter)

(1) Kuwahara V. S., & Leong S. C. Y., (2015) Spectral fluorometric characterization of phytoplankton types in the tropical coastal waters of Singapore. Journal of Experimental Marine Biology and Ecology, 466, 1 – 8. DOI: 10.1016/j.jembe.2015.01.015

(2) Wang S., Xiao C., Ishizaka J., et al. (2016) Statistical approach for the retrieval of phytoplankton community structures from in situ fluorescence measurements. Optics Express, 24, 21, 23635 – 23653. DOI: 10.1364/OE.24.023635

Turbidity sensor with wiper INFINITY-Turbi (ATU75W2-USB)

(1) Le Nguyen H.T., Vo Luong H.P., (2019) Erosion and deposition processes from field experiments of hydrodynamics in the coastal mangrove area of Can Gio, Vietnam. Oceanologia, 61, 252 – 264. DOI: 10.1016/j.oceano.2018.11.004

(2) Azhikodan G. & Yokoyama, K. (2019) Seasonal morphodynamic evolution in a meandering channel of a macrotidal estuary. Science of The Total Environment, 684, 20, 281 – 295. DOI: 10.1016/j.scitotenv.2019.05.289

(3) Mascarenhas A. C.C., Gomes G. S., Lima A. P. Y., da Silva H. K. N., Santana L. S., Rosário R. P., Rollnic M. (2016) Seasonal Variations of the Amazon River Plume with Focus on the Eastern Sector, Journal of Coastal Research, 75,1, 532 – 536. DOI: 10.2112/SI75-107.1

(4) Abe T., Mizugaki S., Toyabe T., Maruyama M., Murakami Y., Ishiya T., (2012). High Range Turbidity Monitoring in the Mu and Saru River Basins: All-year Monitoring of Hydrology and Suspended Sediment Transport in 2010. International Journal of Japan Erosion Control Engineering, 5, 1, 70 – 79. DOI: 10.13101/ijece.5.70

Conductivity and temperature sensor with wiper INFINITY-CTW (ACTW-USB/CAD/ CAR)

(1) Wada M., Hatanaka K., Natsi, M., (2019) Development of automated sea-condition monitoring system for aquaculture in Indonesia. Sensors and Materials, 31, 3, 773 – 784. DOI: 10.18494/SAM.2019.2199

Conductivity and temperature sensor INFINITY CT (A7CT- USB/CAD/ CAR)

(1) Okamoto A., Seta T., Sasano M., Inoue S., Ura, T. (2019). Visual and autonomous survey of hydrothermal vents using a hovering‐type AUV: Launching Hobalin into the western offshore of Kumejima Island. Geochemistry, Geophysics, Geosystems, 20, 6234 – 6243. DOI: 10.1029/2019GC008406

(2) Solodoch A., Molemaker J. M., Srinivasan K., Berta M., Marie L., Jagannathan A., (2020) Observations of Shoaling Density Current Regime Changes in Internal Wave Interactions. Journal of Physical Oceanography, 50, 1733 – 1751. DOI: 10.1175/JPO-D-19-0176.1

(3) Zhang H., Liu X., Wu R., Liu F., Yu L., Shang X., Qi Y., Wang Y., Song X., Xie X., Yang C., Tian D., Zhang W., (2016) Ocean Response to Successive Typhoons Sarika and Haima Based on Data Acquired via Multiple Satellites and Moored Array. Remote Sensing, 11, 2360. DOI: 10.3390/rs11202360

Optical DO sensor with wiper RINKO W (AROW2-USB/CAR/CAD)

(1) Nishino S., Kikuchi T., Fujiwara A., Hirawake T., Aoyama M., (2016) Water mass characteristics and their temporal changes in a biological hotspot in the southern Chukchi Sea, Biogeosciences, 13, 2563 – 2578. DOI: 10.5194/bg-13-2563-2016

(2) Senbokuya K., Kobayashi S., Ookei N. et al. (2019) Impact of nighttime hypoxia on ark shell Scapharca broughtonii mortality on a semi-enclosed embayment seabed. Fisheries Science, 85, 369 – 377. DOI: 10.1007/s12562-018-01284-x

(3) Yamamoto-Kawai M., Mifune T., Kikuchi T., Nishino S. (2016) Seasonal variation of CaCO3 saturation state in bottom water of a biological hotspot in the Chukchi Sea, Arctic Ocean, Biogeosciences, 13, 6155 – 6169. DOI: 10.5194/bg-13-6155-2016

Fast Optical DO sensor RINKO I / RINKO II (ARO-USB/CAR/CAD)

(1) Weck J. & Lorke A. (2017) Mixing efficiency in the thermocline of lakes observed from eddy correlation flux measurements, Journal of Geophysical Research Oceans, 122, 291 – 305. DOI: 10.1002/2016JC012188

(2) Hanz U., Wienberg C., Hebbeln D., Duineveld G., Lavaleye M., Juva K., Dullo W.-C., Freiwald A., Tamborrino L., Reichart G.-J., Flögel S., Mienis F. (2019) Environmental factors influencing benthic communities in the oxygen minimum zones on the Angolan and Namibian margins, Biogeosciences, 16, 4337 – 4356. DOI: 10.5194/bg-16-4337-2019

(3) Kreling J., Bravidor J., Engelhardt C., Hupfer M., Koschorreck M., Lorke, A. (2017) The importance of physical transport and oxygen consumption for the development of a metalimnetic oxygen minimum in a lake. Limnology and Oceanography, 62, 348 – 363. DOI: 10.1002/lno.10430

Fast optical DO sensor for microscale measurements RINKO EC (ARO-EC)

(1) Berg P., Koopmans D. J., Huettel M., Li H., Mori K., Wüest A. (2016) A new robust oxygen-temperature sensor for aquatic eddy covariance measurements. Limnology and Oceanography Methods, 14, 151−167. DOI: 10.1002/lom3.10071

(2) Berg, P. & Pace M. L. (2017) Continuous measurement of air–water gas exchange by underwater eddy covariance, Biogeosciences, 14, 5595 – 5606. DOI: 10.5194/bg-14-5595-2017

(3) Plew D. R. (2019) Investigating benthic impacts at salmon farms using eddy covariance measurements of benthic oxygen fluxes. Aquaculture Environment Interactions, 11, 337 – 357. DOI: 10.3354/aei00317

(4) Huettel M., Berg, P., Merikhi A. (2020) Technical note: Measurements and data analysis of sediment-water oxygen flux using a new dual-optode eddy covariance instrument, Biogeosciences Discussions. in review. DOI: 10.5194/bg-2020-172

Water quality profiler with fast optical DO sensor (AAQ-RINKO)

(1) Makarov M. M., Kucher K. M., Naumova E. Yu. (2019) Vertical distribution of zooplankton after rapid change in temperature and chlorophyll concentration. Limnology and Freshwater Biology, 1, 177 – 180. DOI: 10.31951/2658-3518-2019-A-1-177

Logger type CTD with fast optical DO sensor (RINKO Profiler)

(1) Flores Melo, X., Martín J., Kerdel L., Bourrin F., Colloca C.B., Menniti C., de Madron X.D., (2020) Particle Dynamics in Ushuaia Bay (Tierra del Fuego)-Potential Effect on Dissolved Oxygen Depletion. Water, 12, 324. DOI: 10.3390/w12020324

Analog Fast Optical DO sensor RINKO III (ARO-CAV)

(1) Nagano A., Suga T., Kawai Y. et al. (2016) Ventilation revealed by the observation of dissolved oxygen concentration south of the Kuroshio Extension during 2012–2013. Journal of Oceanography, 72, 837 – 850. DOI: 10.1007/s10872-016-0386-9

(2) Bauer S., Blomqvist S., Ingri J., (2017) Distribution of dissolved and suspended particulate molybdenum, vanadium, and tungsten in the Baltic Sea. Marine Chemistry, 196, 135 – 147. DOI: 10.1016/j.marchem.2017.08.010

(3) Sasano D., Takatani Y., Kosugi N., Nakano T., Midorikawa T., Ishii M. (2015) Multidecadal trends of oxygen and their controlling factors in the western North Pacific, Global Biogeochemical Cycles, 29, 935 – 956. DOI: 10.1002/2014GB005065

Chlorophyll and turbidity sensor with wiper INFINITY CLW (ACLW2-USB)

(1) Syariz M. A., Lin C.-H., Nguyen M. V., Jaelani L. M., Blanco A. C., (2020) WaterNet: A Convolutional Neural Network for Chlorophyll-a Concentration Retrieval. Remote Sensing, 12, 1966. DOI: 10.3390/rs12121966

(2) Abe H., Sampei M., Hirawake T., Waga H., Nishino S., Ooki A. (2019) Sediment-Associated Phytoplankton Release From the Seafloor in Response to Wind-Induced Barotropic Currents in the Bering Strait. Frontiers in Marine Science, 6, 97. DOI: 10.3389/fmars.2019.00097

(3) Jansen H. M. & Capelle J. J., (2018) The effect of mussel farming on sediment dynamics in the Wadden Sea Case studies evaluating the local effects of mussel seed fisheries and mussel harvest on turbidity and sedimentation. Wageningen, Wageningen Marine Research report C046/18. 67pp. DOI: 10.18174/454788

(4) Ballesta-Artero, I., Witbaard, R., Carroll, M.L. et al. (2017) Environmental factors regulating gaping activity of the bivalve Arctica islandica in Northern Norway. Marine Biology, 164, 116. DOI: 10.1007/s00227-017-3144-7

Electromagnetic current meter for deep ocean (AEMD-USB)

(1) Ma Q., Wang F., Wang J., Lyu Y. (2019). Intensified Deep Ocean Variability Induced by Topographic Rossby Waves at the Pacific Yap‐Mariana Junction. Journal of Geophysical Research: Oceans, 124, 8360 – 8374. DOI: 10.1029/2019JC015490

Water pressure principle wave height meter INFINITY WH (AWH-USB)

(1) Hattori N., Tajima Y., Yamanaka Y., Kumagai, K., (2020) Study on the influence of infragravity waves on inundation characteristics at Minami-Ashiyahama in Osaka Bay induced by the 2018 Typhoon Jebi, Coastal Engineering Journal, 62, 2, 182 – 197. DOI: 10.1080/21664250.2020.1724247

Pocket-sized Light Intensity Recorder (DEFI2-L)

(1) Terada R., Watanabe Y., Fujimoto M. et al. (2016) The effect of PAR and temperature on the photosynthetic performance of a freshwater red alga, Thorea gaudichaudii (Thoreales) from Kagoshima, Japan. Journal of Applied Phycology, 28, 1255 – 1263. DOI: 10.1007/s10811-015-0660-z

(1) Lee J. S., Kang D., Hineva E. et al. (2017) Estimation of net ecosystem metabolism of seagrass meadows in the coastal waters of the East Sea and Black Sea using the noninvasive eddy covariance technique. Ocean Science Journal, 52, 243 – 256. DOI: 10.1007/s12601-017-0032-5

Pocket-size pressure logger (DEFI2-D)

(1) Kitamura M., Honda M. C., Hamajima Y., Kumamoto Y., Aoyama M., Kawakami H., Aono T., Fukuda M., Mino Y., (2017) Temporal changes in radiocesium contamination derived from the Fukushima Dai-ichi Nuclear Power Plant accident in oceanic zooplankton in the western North Pacific, Journal of Environmental Radioactivity, 172, 163 – 172. DOI: 10.1016/j.jenvrad.2017.03.024

Pocket-size temperature logger (DEFI2-T)

(1) Abe T. K., Kitagawa T., Makiguchi Y., Sato K., (2019) Chum salmon migrating upriver adjust to environmental temperatures through metabolic compensation. Journal of Experimental Biology, 222. DOI: 10.1242/jeb.186189

Laboratory EM current meter (ACM2-RS)

(1) Zheng T., Niu Z., Sun S., Shi J., Liu H., Li G., (2020) Comparative Study on the Hydraulic Characteristics of Nature-Like Fishways. Water, 12, 955. DOI: 10.3390/w12040955

Handheld electromagnetic current meter with temperature and depth sensor (AEM213-D)

(1) Pham H.G., Harada H., Fujii S., et al. (2017) Transition of human and livestock waste management in rural Hanoi: a material flow analysis of nitrogen and phosphorus during 1980–2010. Journal of Material Cycles and Waste Management,19, 827 – 839. DOI: 10.1007/s10163-016-0484-1

Handheld electromagnetic current meter for rivers (AEM1-DA)

(1) Shimizu Y., Onodera S., Jin G. et al. (2020) Effect of in-stream impoundment on water quality of a suburban stream. Limnology. DOI: 10.1007/s10201-020-00619-x