[Coral-List] OTEC around coral reefs

[Alina Szmant]

600 ft off ABC islands is only around 20 oF or so.  But it is below the nutricline I believe.  We have some data from Curacao.  I will try to find it.



Sent from my Samsung Galaxy smartphone.



-------- Original message --------
From: Douglas Fenner <douglasfennertassi at gmail.com>
Date: 6/22/20 4:20 PM (GMT-05:00)
To: Melbourne Briscoe <mel at briscoe.com>
Cc: Alina Szmant <alina at cisme-instruments.com>, coral-list at coral.aoml.noaa.gov, "Meesters, Erik" <erik.meesters at wur.nl>
Subject: Re: [Coral-List] OTEC around coral reefs

I bet if you go deep enough (likely 600 feet or more) it will be close to freezing.  That's true of most all of the world's oceans, so far as I know (with exceptions such as shallow continental seas such as the Arabian/Persian Gulf which has a maximum depth of around 295 feet).

On Mon, Jun 22, 2020 at 3:10 AM Melbourne Briscoe via Coral-List <coral-list at coral.aoml.noaa.gov<mailto:coral-list at coral.aoml.noaa.gov>> wrote:
"Cold" water near Bonaire isn't very cold. Efficiency is going to be very
low.

On Thu, Jun 18, 2020 at 2:22 PM Alina Szmant via Coral-List <
coral-list at coral.aoml.noaa.gov<mailto:coral-list at coral.aoml.noaa.gov>> wrote:

> Eric: with deep cold water comes nutrients.  Be concern about local algal
> blooms.
>
>
>
> Sent from my Samsung Galaxy smartphone.
>
>
>
> -------- Original message --------
> From: "Meesters, Erik via Coral-List" <coral-list at coral.aoml.noaa.gov<mailto:coral-list at coral.aoml.noaa.gov>>
> Date: 6/17/20 8:36 AM (GMT-05:00)
> To: coral-list at coral.aoml.noaa.gov<mailto:coral-list at coral.aoml.noaa.gov>
> Subject: [Coral-List] OTEC around coral reefs
>
> Hi all,
> There are now plans for an OTEC facility on Bonaire.
>
> It basically means pumping up cold water from the deep to cool things and
> discharging warmer water (often shallower).
>
>   *   Here are some examples: https://nelha.hawaii.gov/
>   *   http://otecokinawa.com/en/OTEC/WaterUses.html
>
> I can think of a lot of doomsday scenarios, but I'm looking for reports,
> assessments, thoughts, advice.
> Does anyone have experiences with OTEC facilities in the neighbourhood of
> coral reefs?
> it's often presented as the goose with the golden eggs, and governments
> seem to fall for it easily, but apart from glossy sales talks, I can't find
> objective reports or EIAs.
> Thanks for your responses.
> Best wishes,
> Erik Meesters
> Wageningen Marine Research
>
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Douglas Fenner
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"mitigating climate change is the critical wedge to set coral reefs on a recovery trajectory"  Duarte et al 2020 Rebuilding marine life Nature

"Already, more people die <http://www.nws.noaa.gov/om/hazstats.shtml> from heat-related causes in the U.S. than from all other extreme weather events."
  https://www.npr.org/2018/07/09/624643780/phoenix-tries-to-reverse-its-silent-storm-of-heat-deaths

Even 50-year old climate models correctly predicted global warmng
https://www.sciencemag.org/news/2019/12/even-50-year-old-climate-models-correctly-predicted-global-warming?utm_campaign=news_weekly_2019-12-06&et_rid=17045989&et_cid=3113276

"Global warming is manifestly the foremost current threat to coral reefs, and must be addressed by the global community if reefs as we know them will have any chance to persist."  Williams et al, 2019, Frontiers in Marine Science