Verrückt- gerade aus der #Katapult 39 gelesen.
Menschen haben mit fast nix die Insel #Yonaguni angesteuert - von #Taiwan. Alles um zu schauen, ob die aufregende Strömung #Kuroshio funktioniert.

Quelle: https://archive.fo/20250704060607/https://www.theguardian.com/world/2025/jul/04/cramps-fatigue-and-hallucinations-paddling-200km-in-a-paleolithic-canoe-from-taiwan-to-japan

https://en.wikipedia.org/wiki/Kuroshio_Current
Diese Pazifik-Strömung bei Japan ist auch interessant. Bissl wie Golfstrom, windgetrieben, aber hat im Winter auch eine Komponente wie AMOC, wo salziges, nach Norden getriebenes Wasser abkühlt und in die Tiefe sinkt.
Exxons Klima verstärkt die Kuroshio Current ulkigerweise, sagen Klimamodelle vorher.

Die Stelle fällt stark auf, wenn man Sea Surface Temperature anguckt, weil es da viel heißer als normal ist.

Vll fehlt Wind und das ganze heiße Wasser aus dem "Pacific Warm Pool" bei Papua Neuguinea, das zur Kuroshio Strömung treibt, bleibt da stecken und kann nicht weiter?
Vll ist das aber auch ganz normal und saisonal, bis die Typhoon-Säson losgeht.

Eine Banane ist dort auch passiert und wird untersucht. Zb in diesem Paper https://www.sciencedirect.com/science/article/pii/S1385110125000279#f0005
"Unprecedented oceanographic conditions in October 2024 around the Oyashio and Coastal Oyashio off the southeastern coast of Hokkaido, Japan" von Kuroda et al, Juni 2025

Aber da ich von der Strömung noch nie gehört hatte, kapier ich das Paper noch nicht. Also schreib ich keine Zusammenfassung.
#ozean #Pazifik #Kuroshio #Klimawandel

Kuroshio Current - Wikipedia

Wie kamen die Menschen der Steinzeit durch eine der stärksten Strömungen auf die japanischen Ryukyu-Inseln? Per Kanu, fanden Wissenschaftler heraus.
#Kuroshio #Ryukyu #Sugime #UniversitätTokio

https://floatmagazin.de/leute/passage-ohne-wiederkehr-ryukyu/

Tatsuki Tokoro et al.* analyse the spatiotemporal variations of air-sea CO₂ fluxes in the Kuroshio Region.

https://doi.org/10.1029/2023JC019762

#ocean #co2 #flux #Kuroshio

*S. Nakaoka, S. Takao, S. Saito, D. Sasano, K. Enyo, M. Ishii, N. Kosugi, Y. Nojiri

Jingrou Lin et al.* examine the effects of the Kuroshio current and typhoons on the sea surface pCO₂ in the Northeastern South China Sea.

https://doi.org/10.3390/rs16010123

#ChinaSea #ocean #co2 #typhoon #Kuroshio

Qingyang Sun, Yupeng Liu, Haijun Ye, Danling Tang, Xiaohao Zhang, Yang Gao

#Japan Is Building Underwater #TidalPower Plants on Ocean Currents

Innovation & Technology / By Bojan Stojkovski / June 15, 2022

"Active shipping around the Japanese islands does not allow the Japanese to deploy conventional tidal power plants, and therefore Japanese experts are now developing and testing underwater power plants immersed in water to a depth of more than 50 meters.

"Successful testing of early prototypes of such power plants leads to Japan’s plans to build extensive networks of 2-MW standard tidal turbines by 2030.

"The development of the Kairyu Tidal Ocean Power Plant was started by IHI and NEDO scientists in 2011. By 2017, the partners assembled a 100 kW unit in the form of three 20-m floats with two 11-m blades (two 50 kW generators).

"The immersion depth of 50 meters was chosen for safety reasons during #typhoons, when you will not surprise anyone with the 20th wave, although the closer to the surface, the more influential the movement of water masses.

"The most promising place for installing underwater tidal turbines near Japan is the Japan Current (#Kuroshio) area off the country’s southern and eastern coasts in the Pacific Ocean. The potential current power is estimated at #205GW.

"IHI and NEDO are planning to build a 2MW tidal power plant with 40 blades for commercial use. A distributed network of such turbines could significantly contribute to providing the islands with electrical energy.

"According to Japanese experts, this type of network could generate electricity at the price of #solar energy. At the same time, the efficiency of tidal power plants is much higher than that of solar farms.

"Thus, the installed capacity utilization factor (ICUF) for solar farms is only 15%, while for tidal power plants, it reaches 70% and approaches the ICUU of thermal power plants with 80%.

"After the accident at the #Fukushima #nuclear power plant, Japan has problems with developing a peaceful atom. Also, there are no areas for full-fledged solar energy in the country, and the #winds are not as predictable as in Europe. Tidal power plants could be the foundation in Japan around which the government will build #carbonfree energy."

https://www.renewable.news/innovation-technology/japan-is-building-underwater-tidal-power-plants-on-ocean-currents/

#TidalEnergy #RenewablesNow #RethinkNotRestart #NoNukes

Japan Is Building Underwater Tidal Power Plants on Ocean Currents - Renewable.news

Japanese experts are now developing and testing underwater tidal power plants immersed in water to a depth of more than 50 meters

Renewable.news
Coral reveals changes of Kuroshio current into South China Sea via Luzon Strait

The Kuroshio Current enters the South China Sea via the Luzon Strait and exerts significant effects on circulation and water mass properties of this marine basin. However, limited by the few on-site observations, multi-decadal variations in Luzon Strait Transport remain uncertain.

Phys.org
大日本海陸全圖 a very fine 1864 woodblock print showing a #map of #Japan oriented with north to the upper right designed by Seiken Gengyo. Includes also distance charts, #Kuroshio and legend.