Error message

Deprecated function: Array and string offset access syntax with curly braces is deprecated in include_once() (line 20 of /home/sobom/public_html/includes/file.phar.inc).

The ice edge bloom

11 Jan, 2015by Kenneth Johnson 8214 Comments

I wrote about the spring bloom seen by our profiling floats in my last post. Those floats were all in open water. Massive phytoplankton blooms along the ice edge are a major feature of Southern Ocean waters. Our floats operate under ice and, as the ice melts back, these float can observe the ice edge blooms. In open waters, the large accumulation of phytoplankton started around October 1 as the water column warmed and deep mixing slowed (although, remember phytoplankton growth rates were high before then – the phytoplankton concentration just was not increasing as it was diluted by deeper mixing). The blooms seen by floats that are far from the ice edge start later, as can take several months for the ice to melt back to the float locations. The ice edge blooms can result from several factors: a shallow mixed layer may form due to warm, fresher water that minimizes vertical mixing, iron may be released from melted ice and allow increased growth, or more sunlight allows faster growth.

The ice edge bloom is nicely resolved by float 9091 (near 64 South) in the Pacific sector of the Southern Ocean. 9091 just emerged from the ice and began reporting around New Years Day. Although the float couldn’t reach the surface before that, it was still profiling and storing data. Once it could reach the surface, all the stored profiles were transmitted and they are now available on the SOCCOMViz web site. Here are a couple of plots made with SOCCOMViz that compare float 9091 (black dots) and float 9092 (blue dots), which was around 60 South and just north of the ice edge most of the winter.

The first plot shows temperature in the upper 30 m versus time. Float 9091 saw a chilly -1.8C, the freezing point of seawater. Float 9092 only cooled to -0.7C and it started to warm up a month earlier than 9091. Hence it probably was never under ice.

The next plot shows chlorophyll in the upper 30 m versus time. The concentrations start increasing a bit earlier for 9092, but 9091 reaches higher values: about 6 ug/L for 9091 versus 1.5 ug/L for 9092.

What is driving the larger values? Before we consider that, let’s look at two other floats with ice edge blooms. Hannah and Dan were been busy deploying floats during December from the Polarstern in the Atlantic sector. The last two that have been deployed are 0511 at 65 South and 9094 at 67 South, both deployed in ice covered waters. What do they show? The following plot shows vertical chlorophyll profiles in the upper 200 m for 9091 (black), 9092 (blue), 0511 (red) and 9094 (green). Wow, 0511 is showing an enormous bloom with chlorophyll values up to 40 ug/L. The chlorophyll seen by 9094 is much lower, but just starting to increase, as the ice melts back to it. That makes sense as it is further south.

Why the big difference between the Atlantic and Pacific and what does that say about the cause of the bloom? That requires one more plot of the salinity profiles for all four floats with the same color scheme as for chlorophyll. The two Atlantic floats are seeing fresher and shallower surface layers. We haven’t seen the depth of the winter mixed layer with these floats, but I bet it was at least 60 m. In that case the salinity decrease near the surface in the Atlantic is much greater than in the Pacific, maybe 0.6 PSS (Practical Salinity Scale) in the Atlantic versus 0.2 in the Pacific.

So the mixed layer depths are somewhat shallower in the Atlantic and the amount of melted ice in the water is much greater. That might point to a larger contribution by iron from the melted ice in the Atlantic, relative to the Pacific.

Finally, here’s a challenge. The bloom is just starting at 9094. Use SOCCOMViz to see how chlorophyll is changing. A new profile will arrive every 10 days. How high will chlorophyll go for that float? The winner must post a blog comment that has a chlorophyll value within 2 ug/L of the final value reached by 9094. But you have to post your entry by January 30. And only one entry per person, please. And you have to justify your prediction. In the case of ties, the best explanation (I'm the judge) will be the tie breaker. The winner will have their name painted on a SOCCOM float. And just to complicate things, a single point "flyer" value won't get counted. There must be a clear peak value. So students, oceanographers, citizen scientists, what's your guess???

Comments

XFGRSDHGREG

Permalink Submitted by SAFDWWEG on Sun, 02/12/2023 - 17:38

https://vk.com/@madang-demon-slayer-2023-hd-tw
https://vk.com/@movzh-demonslayer-2023hd-full-version
https://vk.com/@beungeutsia-demon-slayer-2023-hd-subtitle
https://vk.com/@cinemahk-demonslayer-full1080p
https://vk.com/@hdchanel81-demon-slayer-2023-hd-4k
https://vk.com/@cineplexnet-demon-slayer-hd-engsub
https://vk.com/@thaicineplix-2023-demon-slayer-kimetsu-no-yaiba-to-the-s...
https://vk.com/@cinehitz-demon-slayer-hd2023-subhk
https://vk.com/@flikmaxcine-behind-the-blue-eyes-2023hd
https://vk.com/@brudulfilme-behind-the-blue-eyes-full1080p
https://vk.com/@bratbreutchanel-the-point-men-2023hd
https://vk.com/@twcinema-the-point-men-full1080p
https://vk.com/@streamflikz-marry-my-dead-body-2023hd
https://vk.com/@slawasehd4k-marry-my-dead-body-hd1080p
https://vk.com/@mediaflix-detective-knight-independence-2023hd
https://vk.com/@libatkancinema-detective-knight-independence-hd1080p
https://demonslayertw4kfullversion.statuspage.io/
https://demonslayerkimetsunoyaiba2023twfullversion.statuspage.io/
https://demonslayerkimetsunoyaibatotheswordsmithvillagehd4k.statuspage.io/
https://demonslayerkimetsunoyaibatotheswordsmithvillagehk.statuspage.io/
https://demonslayerkimetsunoyaibatotheswordsmithvillagetwsub.statuspage.io/
https://demonslayerkimetsunoyaibatotheswordsmithvillagefullonline.status...
https://mydukaan.io/sakarepna/products/gui-mie-zhi-ren-shang-xian-ji-jie...
https://reportodays.com
https://reportodays.online
https://reportodays.site
https://incbuz.com

gasgashashashsh

Permalink Submitted by asfasffas on Sun, 02/12/2023 - 20:09

asfasghashs

Permalink Submitted by asfasfasgasg on Sun, 02/12/2023 - 20:13

<a href="https://posttera.com

Permalink Submitted by Posting Service on Sun, 02/12/2023 - 20:57

<a href="https://posttera.com/">Posting Service</a> Create one Post and get a lot of benefits in our Posttera Posting Service. Get Started Advanced Reporting Post conversion, Craigslist, Facebook, Offerup. Check Our Prices,

Buygenmeds

Permalink Submitted by patriciajenner on Sun, 02/12/2023 - 23:54

Sildalist 120 and Tadalista is a male erectile dysfunction medicine. The incapacity of men with ED to erect their penis distinguishes them. Sildalist 120 is frequently used to treat erectile dysfunction. Sildalist 120 is a Viagra alternative. PDE5 is inhibited by a sildenafil component present in Sildalist 120. Sildenafil blue pills are fairly priced and delivered for free. Sildalist 120 is a great medication for erectile dysfunction. Sildalist 120 is an FDA-approved, well-tolerated erectile dysfunction drug. Sildalist 120 sales have hit a new high as a consequence of a rise in ED visits globally.

Untraceable sildenafil citrate-containing pharmaceuticals may include unidentified medications that do not pass quality control inspections and are not regulated. As a result, it is commonly acknowledged that utilising counterfeit items may be detrimental to one's health, and the problem is becoming more widespread.

Furthermore, even if they include active compounds, the quantities may be much lower than claimed on the box, and they may contain potentially harmful chemicals. If such medications are taken, there is a substantial chance of mortality, toxicity, or severe negative effects.

Click here:
https://www.buygenmeds.com/product/sildalist-120-mg/
https://www.buygenmeds.com/product/tadalista/

RE

Permalink Submitted by Ayushi on Mon, 02/13/2023 - 01:20

This is awesome post share.

https://topescortsuganda.com/escort/kanishka/
https://erokinks.com/escort/mihika/
https://www.zoosexnet.com/users/roshnikhanna/
http://www.travestistaiaka.com/escort/1674
https://topescortsclub.com/escort/chhavi/
https://escortindex.net/escort/daksha/
https://www.escortsdirectoryeurope.com/escort/daksha/
https://worldxxxescorts.com/agency/roshni-khanna/
https://hornydex.com/escort/chhavi/
https://www.discoverygarden-escorts.com/escort/kavita/
https://escortmodels.org/escort/alvira/
https://india.escortgps.xxx/escort/madhu/
https://escortinmanali.com/agency/aerocity-gurgaon/
https://escortinmanali.com/escort/preet/
https://escortinmanali.com/escort/madhu/
https://gulfescorts.me/escort/nandita/
https://www.happyescorts.com/escort-agencies/aerocity-gurgaon
https://writeablog.net/qmlctjh2ps
http://www.cross.tv/blog/225326
http://www.cross.tv/blog/227126
https://trackthattravel.com/travelblog/9771
http://www.cross.tv/blog/229418
https://trackthattravel.com/travelblog/21299
https://vk.com/@madhus1-5-escort-services-that-you-should-try
http://www.cross.tv/blog/228786
https://penzu.com/public/9c330bd6
http://www.cross.tv/blog/229882
https://trackthattravel.com/travelblog/27736

Get The Best And Affordable Web Design Packages From A Well Name

Permalink Submitted by topteller on Mon, 02/13/2023 - 01:36

Are you planning to start a new business or want to revamp your current website? You must be in search of a good web design company that can help you with the best and affordable web design packages. If yes, you can get in touch with Matebiz – one of the leading Website Development Company India.
They are a team of highly skilled professionals who are always ready to serve clients with the best in the industry. With their web design services, you can get a well-designed and developed website that will help you take your business to the next level. So, what are you waiting for? Contact them today to get the best web design packages!
https://www.matebiz.com/website-development-company-india/
https://www.matebiz.com/website-design-packages/

Abroad Study Consultancy

Permalink Submitted by linaluice12 on Mon, 02/13/2023 - 01:48

https://abroadvice.com/uk
https://abroadvice.com/
https://abroadvice.com/gmat
https://abroadvice.com/visaassistance
https://abroadvice.com/us/ms-in-business-analytics.html
https://abroadvice.com/us/masters-in-management.html
https://abroadvice.com/us/ms-in-information-systems.html
https://abroadvice.com/us/agriculture-colleges.html
https://abroadvice.com/us/law-colleges.html

Need Scrap Car Removal In Sunshine Coast? Contact The Best Car W

Permalink Submitted by HPCarRemovals on Mon, 02/13/2023 - 01:55

HPCarRemovals is a professional and ethical company that offers scrap car removal Sunshine Coast services. We are fully licensed and insured, and our team of experts is ready to help you get rid of your old, unwanted car. We believe in providing our customers with the best possible service, and we will always go the extra mile to make sure you are satisfied.
Contact the best car wreckers Sunshine Coast today! We will provide you with a free quote and help you get rid of your old car in a quick, hassle-free way.
https://hpcarremovals.com.au/scrap-car/
https://hpcarremovals.com.au/car-wreckers/

Hackers for hire

Permalink Submitted by ihireahacker on Mon, 02/13/2023 - 02:22

A Company That Pays Top Cash For Junk Cars In South Auckland - C

Permalink Submitted by carremovals on Mon, 02/13/2023 - 02:28

Car Removals is a company that pays top cash for junk cars in South Auckland. We are car wreckers who specialize in removing old, unwanted, and damaged cars. We serve all areas in South Auckland and we offer free car removal services.
We pay cash for all types of cars, vans, utes, trucks, and SUV's. We also offer free car removal services for all types of cars. We pay cash on the spot and we will remove your car for free.
Contact the best car wreckers South Auckland company today and we will give you a top cash offer for your car.
https://carremovals.co.nz/
https://carremovals.co.nz/car-removals-auckland/
https://carremovals.co.nz/car-wreckers-south-auckland/

Searching A Affordable Guest Blogging Site To Promote Your Busin

Permalink Submitted by SeoServiceIndia on Mon, 02/13/2023 - 02:47

Guest blogging is a win-win situation. Not only does the guest get exposure for their business on another site, but the host gets fresh content and a new perspective. However, finding quality, affordable guest blogging sites for business can be a challenge – especially if you’re working on a tight budget.

That’s where SeoServiceIndia comes in. We’re a guest blogging site that offers quality content and exposure for businesses at an affordable price. We’re also committed to working with our clients to ensure that they get the most out of our service.

For more information on our guest blogging services, contact SeoServiceIndia today!
https://seoserviceindia.in/
https://seoserviceindia.in/old-car-removals-brisbane-why-choose-carswrec...
https://hightechreviews.net/guest-blogging-sites-for-business-a-guide-to...
https://guestcountry.com/know-about-the-best-business-guest-post-site-se...
https://district160.com/how-to-make-your-digital-marketing-guest-post-st...
https://abracada.net/stop-searching-for-health-related-guest-post-sites-...

i never know the use of adobe

Permalink Submitted by شرط بندی ایرانی on Mon, 02/13/2023 - 04:14

i never know the use of adobe shadow until i saw this post. thank you for this! this is very helpful.

i never know the use of adobe

Permalink Submitted by بهترین سایت شرط بندی on Mon, 02/13/2023 - 04:25

i never know the use of adobe shadow until i saw this post. thank you for this! this is very helpful

Escorts Services

Permalink Submitted by Mysore Independ... on Mon, 02/13/2023 - 04:27

Hello, I appreciate perusing your distribution. Great review, Positive site on the web, where did you give the measurements on this posting? I even have included you folks in my blogroll. I guess upgrading the expense of my website is going. Much appreciated!!

jembatan timbang

Permalink Submitted by jembatan timbang on Mon, 02/13/2023 - 04:34

cool and awesome, let's gain any information in this link now

Solar Power Generator Manufacturers

Permalink Submitted by Solar Power Gen... on Mon, 02/13/2023 - 04:45

You are awesome. Such an informative post about world worrier to increase my knowledge. Thanks for posting this and keep sharing buddy. <a href="https://www.exporthub.com/Solar Power Generator Manufacturers/">Solar Power Generator Manufacturers</a>

Solar Power Generator Manufacturers

Permalink Submitted by Solar Power Gen... on Mon, 02/13/2023 - 04:57

I've seen some excellent points here. Amazing stuff, I believe you brought up some excellent points. Continue your wonderful work.
Keep sharing good content and give better information. <a href="https://www.exporthub.com/Solar Power Generator Manufacturers/">Solar Power Generator Manufacturers</a>

gasgsgsgaasg

Permalink Submitted by asfghashah on Mon, 02/13/2023 - 05:25

Search form

Main menu

Error message

The ice edge bloom

Comments