Joe O'Callaghan (@joemocallaghan) 's Twitter Profile
Joe O'Callaghan

@joemocallaghan

oceanographer, chicken-wrangler, futsal coach, paddleboards occasionally. Opinions are my own.

ID: 3411482894

calendar_today01-09-2015 05:30:45

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Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Great story on mapping rivers in shelf seas with ocean gliders in Aotearoa New Zealand. uv-2.com Even made the front cover with TeledyneMarine glider + Mt Taranaki by Fiona Elliott. @niwa_nz Sustainable Seas

Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

When I’m not chasing ocean gliders through Cook Strait I’m looking for a buoy that really shouldn’t go anywhere... nzherald.co.nz/kapiti-news/ne…

Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Great first PhD paper by Rafa Santana 👏👏👏 Analysis of year-long moorings deployed across New Zealand’s NE Shelf to observe the highly variable boundary current and its interaction with shelf seas @niwa_nz

Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Unsuccessful 2021 Marsden. Same proposal to 2nd round in 2020 w excellent reviews. Ocean warming is >90% of global energy budget. Are warmer oceans mixing + changing deep ocean currents + global climate? Nowhere else in NZ science system to get this funded. Grr.

Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

I usually post about field work but last 12 months have been slow-going. Even today… was supposed to deploy a glider but Welly + COVID + uncertainty = cancelled trip. Sigh. Feels like treading water. Good stuff is happening too, I’ll be a JGR-Oceans editor from July 1 AGU Ocean Sciences

Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

glidering off bay of islands, northern NZ today. try and spot the yellow glider fin amongst the curious dolphins this morning @niwa_nz

Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

WRIBO measured salinity in Wellington Harbour lower than 10 psu- it’s usually around 32 psu - after all that rain on the weekend. That’s fresh! River plume will keep heading out to Cook Strait + beyond providing connectivity between our mountains + oceans @niwa_nz Greater Wellington

WRIBO measured salinity in Wellington Harbour lower than 10 psu- it’s usually around 32 psu - after all that rain on the weekend. That’s fresh! River plume will keep heading out to Cook Strait + beyond providing connectivity between our mountains + oceans @niwa_nz <a href="/greaterwgtn/">Greater Wellington</a>
Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Sitting by computer, watching NZ MIQ allocation refresh every 3.7s. Waiting, hoping to get a beep for an MIQ spot to get back to NZ from Australia. And even though I’ve lived in NZ for 15 years, Australia will make me apply for an exemption to go home to my whanau. It’s bonkers.

Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Bluest ocean I've ever seen! Last Nov 2021 went to Rangitāhua/Kermadec Islands w Expedition Rangatahi. Such a privilege. Ocean glider+ big internal waves! Supports Ngāti Kuri-led research w Auckland Museum + Inkfish Auckland Museum neihana manawatu NIWA, vid by Annika Andresen

Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Glider deployment #30 underway. Manaia sampling from Bay of Islands to Bay of Plenty in 30 days for MBIE Science smart idea. Ocean glider data + models = realistic ocean forecasting for Aotearoa’s oceans. Jasmin McInerney @niwa_nz MetOcean Solutions

Glider deployment #30 underway. Manaia sampling from Bay of Islands to Bay of Plenty in 30 days for <a href="/MBIEsci/">MBIE Science</a> smart idea. Ocean glider data + models = realistic ocean forecasting for Aotearoa’s oceans. <a href="/jas_mcinerney/">Jasmin McInerney</a> @niwa_nz <a href="/MetOceanNZ/">MetOcean Solutions</a>
Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Cyclone vs robot. 120km/h wind gusts vs 1.5m glider. Tomorrow they go head-to-head!🤞ocean glider Manaia will observe rapid upper ocean mixing for Deep South Challenge: Changing with our Climate. How will ocean cooling from cyclones or storms impact Aotearoa’s weather in a changing climate? @niwa_nz NIWA Weather

Cyclone vs robot. 120km/h wind gusts vs 1.5m glider. Tomorrow they go head-to-head!🤞ocean glider Manaia will observe rapid upper ocean mixing for <a href="/DeepSouth_NZ/">Deep South Challenge: Changing with our Climate</a>. How will ocean cooling from cyclones or storms impact Aotearoa’s weather in a changing climate? @niwa_nz <a href="/NiwaWeather/">NIWA Weather</a>
Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Great to see this happening soon! Observing river plumes in Hawke Bay during winter with @tedconroy2. River plumes are only several metres thick below the surface but the salinity and sediment inputs have cumulative impacts on coastal oceans + ecosystems.

Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Disentangling physical-biological oceanographic processes in the Rangitāhua/Kermadec region. PhD project working with me, Alice Della Penna (she/her) + Dr Denise Fernandez starting early 2023. Supporting Ngāti Kuri-led research with Auckland Museum Ngati Kuri Auckland Museum

Disentangling physical-biological oceanographic processes in the Rangitāhua/Kermadec region. PhD project working with me, <a href="/AliDrifting/">Alice Della Penna (she/her)</a> + <a href="/Deni_ocean/">Dr Denise Fernandez</a> starting early 2023. Supporting Ngāti Kuri-led research with Auckland Museum <a href="/KuriNgati/">Ngati Kuri</a> <a href="/aucklandmuseum/">Auckland Museum</a>
Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Back from leading a 3-week RV Tangaroa voyage to Rangitāhua/Kermadecs Islands. It wasn’t always easy but I feel very privileged. Amazing location, great team, new knowledge of this pristine marine ecosystem. Ngāti Kuri-led research with Auckland Museum Ngati Kuri Auckland Museum

Back from leading a 3-week RV Tangaroa voyage to Rangitāhua/Kermadecs Islands. It wasn’t always easy but I feel very privileged. Amazing location, great team, new knowledge of this pristine marine ecosystem. Ngāti Kuri-led research with Auckland Museum <a href="/KuriNgati/">Ngati Kuri</a> <a href="/aucklandmuseum/">Auckland Museum</a>
Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Still time to apply for this PhD scholarship. New ocean observations - Nov 2022 - from Rangitāhua to disentangle biophysical processes. Another voyage in June 2023 for successful candidate to gain ocean-going research skills. Alice Della Penna (she/her) Dr Denise Fernandez Ngati Kuri Auckland Museum

Joe O'Callaghan (@joemocallaghan) 's Twitter Profile Photo

Neat modelling + obs assimilation for East Auckland Current. Well done Rafa Santana “in situ subsurface temperature is of utmost importance to correctly simulate the top of the thermocline-one of the most difficult regions to simulate in ocean models” @helensmacdonald @niwa_nz