[Coral-List] drone used to photograph reefs
Jean Jaubert
jmjaubert at wanadoo.fr
Tue Jul 2 11:17:41 UTC 2019
Hi Tom,
My team used a high resolution multipsectral
imager (CASI) to map the damadge caused by the
1997-1998 El Nino to reefs in French Polynesia:
Mumby P., Chisholm J. R. M., Clark C. D., Heydley
J. D., Jaubert J. 2001. A bird's-eye view of the
health of coral reefs. Nature: 36.
Cheers,
Jean
------------ Beginning of the forwarded e-mails ------------
>Hi everyone,
>
>For some reason this exchange triggered a
>flashback for me, way back to 1992 to an article
>Mike Risk wrote for REEF ENCOUNTER (Reef
>Encounter; Number 12, December 1992; pp. 7-9)
>entitled: “Musings on Monitoring”. The views
>expressed then are still relevant today.
>
>Tom
>
>
>Quoting "Risk, Michael via Coral-List" <coral-list at coral.aoml.noaa.gov>:
>
>> ...and 50 years ago Terry Scoffin was flying camera-carrying kites over
>> reefs, 40 years ago we had CASSI multispectral imagery...there are
>> loads of techniques out there. We need to give up our fascination with
>> endless ways to describe the vanishing (how many different "reef
>> survey" schemes are out there?) and concentrate on stopping the
>> vanishing. This might just mean less focus on individual careers and
>> more on solutions. (If I sound cynical-I earned it.)
>>
>> On Jun 28, 2019, at 5:20 PM, Douglas Fenner via Coral-List
>> <[1]coral-list at coral.aoml.noaa.gov> wrote:
>>
>> So fantastic whiz-bang technology! Great!! We'd all like to be able
>> to
>> finally see what the reef looks like, each bump, hole, and coral
>> colony, on
>> our computer screens in the office or lab. Never mind that it is only
>> a
>> tiny patch of the world's reefs. Article didn't say how much 6 mo of
>> supercomputer time to crunch the data will cost. Surely vastly more
>> than
>> the $90,000 for the camera and $15,000 for the drone. How practical
>> will
>> that be for mapping the world's reefs? What major coral reef problem
>> will
>> be solved by this? Will it solve some major mystery about reefs? Will
>> it
>> save any reefs or corals? I didn't see an answer to that in the
>> article.
>> A person was quoted in this article as saying it is faster than having
>> someone go underwater and take a lot of pictures and stitch them
>> together.
>> But clearly not faster if you include computer time. Instead of 6 mo
>> of
>> supercomputer, you can do the computer processing on your own computer
>> in a
>> few hours with software that is dirt cheap compared to a supercomputer
>> for
>> 6 mo. For the price of supercomputer for 6 mo, you could provide
>> funding
>> for reef management for a whole country for a year or more, I would
>> guess.
>> Or voluntary birth control for a whole small country for a year or so
>> (I'm
>> totally with you on that, Alina!).
>> I'm playing "devil's advocate" here.
>> Cheers, Doug
>> On Sat, Jun 29, 2019 at 7:04 AM Nicole Crane <[2]nicrane at cabrillo.edu>
>> wrote:
>>
>> Just saw a presentation on this while in Guam. Super!
>> Nicole
>> On Fri, Jun 28, 2019 at 10:25 AM Douglas Fenner via Coral-List <
>> [3]coral-list at coral.aoml.noaa.gov> wrote:
>>
>> Drone takes to the skies to image offshore reefs
>> [4]https://www.nature.com/articles/d41586-019-01988-9?WT.ec_id=NATUR
>> E-20190627&utm_source=nature_etoc&utm_medium=email&utm_campaign=2019
>> 0627&sap-outbound-id=F6879643729B698E3E09146A03F27DA843F58E1B&mkt-ke
>> y=005056B0331B1ED782EEA4D8C7ECAFA3
>> open access
>> (Note the cost and that it may take 6 mo of supercomputer time to
>> analyze
>> the data from 5 sq m. Also doesn't say how deep it can image or how
>> image
>> degrades with depth.)
>> Cheers, Doug
>> --
>> Douglas Fenner
>> Ocean Associates, Inc. Contractor
>> NOAA Fisheries Service
>> Pacific Islands Regional Office
>> Honolulu
>> and:
>> Consultant
>> PO Box 7390
>> Pago Pago, American Samoa 96799 USA
>> A call to climate action (Science editorial)
>> https://science.sciencemag.org/content/364/6443/807?utm_campaign=toc
>> _sci-mag_2019-05-30&et_rid=17045989&et_cid=2840296
>> New book "The Uninhabitable Earth" First sentence: "It is much,
>> much
>> worse
>> than you think."
>> Read first (short) chapter open access:
>> https://www.pbs.org/newshour/arts/read-a-chapter-from-the-uninhabita
>> ble-earth-a-dire-warning-on-climate-change
>> Want a Green New Deal? Here's a better one.
>> https://www.washingtonpost.com/opinions/want-a-green-new-deal-heres-
>> a-better-one/2019/02/24/2d7e491c-36d2-11e9-af5b-b51b7ff322e9_story.h
>> tml?utm_term=.a3fc8337cbf8
>> _______________________________________________
>> Coral-List mailing list
>> Coral-List at coral.aoml.noaa.gov
>> https://coral.aoml.noaa.gov/mailman/listinfo/coral-list
>>
>> --
>> Nicole L. Crane
>> Faculty, Cabrillo College
>> Natural and Applied Sciences
>> [5]www.cabrillo.edu/~ncrane
>> Senior Conservation Scientist, Project co-lead
>> One People One Reef
>> onepeopleonereef.ucsc.edu
>>
>> --
>> Douglas Fenner
>> Ocean Associates, Inc. Contractor
>> NOAA Fisheries Service
>> Pacific Islands Regional Office
>> Honolulu
>> and:
>> Consultant
>> PO Box 7390
>> Pago Pago, American Samoa 96799 USA
>> A call to climate action (Science editorial)
>> [6]https://science.sciencemag.org/content/364/6443/807?utm_campaign=toc
>> _sci-mag_2019-05-30&et_rid=17045989&et_cid=2840296
>> New book "The Uninhabitable Earth" First sentence: "It is much, much
>> worse
>> than you think."
>> Read first (short) chapter open access:
>> [7]https://www.pbs.org/newshour/arts/read-a-chapter-from-the-uninhabita
>> ble-earth-a-dire-warning-on-climate-change
>> Want a Green New Deal? Here's a better one.
>> [8]https://www.washingtonpost.com/opinions/want-a-green-new-deal-heres-
>> a-better-one/2019/02/24/2d7e491c-36d2-11e9-af5b-b51b7ff322e9_story.html
>> ?utm_term=.a3fc8337cbf8
>> _______________________________________________
>> Coral-List mailing list
>> [9]Coral-List at coral.aoml.noaa.gov
>> [10]https://coral.aoml.noaa.gov/mailman/listinfo/coral-list
>>
>>References
>>
>> 1. mailto:coral-list at coral.aoml.noaa.gov
>> 2. mailto:nicrane at cabrillo.edu
>> 3. mailto:coral-list at coral.aoml.noaa.gov
>> 4.
>>https://www.nature.com/articles/d41586-019-01988-9?WT.ec_id=NATURE-20190627&utm_source=nature_etoc&utm_medium=email&utm_campaign=20190627&sap-outbound-id=F6879643729B698E3E09146A03F27DA843F58E1B&mkt-key=005056B0331B1ED782EEA4D8C7ECAFA3
>> 5. http://www.cabrillo.edu/~ncrane
>> 6.
>>https://science.sciencemag.org/content/364/6443/807?utm_campaign=toc_sci-mag_2019-05-30&et_rid=17045989&et_cid=2840296
>> 7.
>>https://www.pbs.org/newshour/arts/read-a-chapter-from-the-uninhabitable-earth-a-dire-warning-on-climate-change
>> 8.
>>https://www.washingtonpost.com/opinions/want-a-green-new-deal-heres-a-better-one/2019/02/24/2d7e491c-36d2-11e9-af5b-b51b7ff322e9_story.html?utm_term=.a3fc8337cbf8
>> 9. mailto:Coral-List at coral.aoml.noaa.gov
>> 10. https://coral.aoml.noaa.gov/mailman/listinfo/coral-list
>>_______________________________________________
>>Coral-List mailing list
>>Coral-List at coral.aoml.noaa.gov
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>>
>
>
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