ctd

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For information about the CTD-rosette equipment package as a whole, see: Rosette sampler

A CTD or Sonde is an oceanography instrument used to measure the conductivity, temperature, and pressure of seawater (the D stands for "depth," which is closely related to pressure). The reason to measure conductivity is that it can be used to determine the salinity.
The CTD may be incorporated into an array of Niskin bottles referred to as a carousel or rosette. The sampling bottles close at predefined depths, triggered either manually or by a computer, and the water samples may subsequently be analyzed further for biological and chemical parameters.
The CTD may also be used for the calibration of sensors.

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  1. O

    New CTD branch???

    In the classified section of the latest TSJ....job opportunities shortly in a new branch of CTD Newcastle (west)??????? Anyone got any ideas when,where,what?.......I can see someone in Westerhope not being too happy to say the least
  2. A

    Thinking of buying Gemini eagle polished porcelain from CTD

    Hi I am thinking of buying these tiles from CTD, in the brochure it says sealing recommended, the guy in the shop also said to seal them, when i mentioned this to our tiler he said they didnt need sealing Has anybody used these before without sealing, would love some advice please before I go...
  3. S

    CTD specials offers

    my local store at Nottingham have some special deals today and yesterday, no not friday fixer day, weber set rapid SPF brown bag £0 grey, £0 white, weber set rapid ECO green bag £0 it seems Bri has posted under fixer friday thread
  4. D

    Win a mini Ipad with CTD.

    Ok , posting this it the arms for tilers... fancy winning an Ipad mini... >>>>>>>>>>> CTD Survey
  5. T

    Rubi and Bal day at CTD Newcastle

    Special offers on at CTD Newcastle on Monday 25th March - Rubi and Bal. Then other Reps/products all week. Must be some bargains to have!
  6. T

    CTD trade day Edgbaston cricket ground Birmingham

    Wednesday 27th February 2-8pm any one from the forum going?? it’s a free bar:8:
  7. Sean Kelly

    First trip to CTD

    I took my first trip to CTD today. Well impressed at the stock and the prices and the service. Was given a tour by Peter Deegan (asst. Mgr). Very nice chap. Must have spent an hour with me. He informed me of all the offers and signed me up as a trader. I spent £584 on 30mtrs Durabase...
  8. D

    marco polo ctd

    hi anyone used these tiles, marco polo matt porcelian 600x 300 was wondering what they are like and if they require sealing
  9. I

    CTD fixer Friday

    CTD posted this on twitter earlier, some good prices for BAL gear, the Weber prices are even better, I'm tempted to get a few bags of BAL just for the body warmer, lol! I'm going to pop over to the Nottingham branch if anyone else is about.
  10. T

    CTD Tiles

    does CTD sells genesis trims anyone know ?
  11. D

    CTD holding 2011 prices on weber.

    Had an email about CTD trade prices for 2013 Jan/Feb/Mar , prices are held at 2011 prices for now..:thumbsup: Also buy a Rubi TX700 and get a FREE Rubi paddle mixer.. offers on Ardex and Bal ... check at your local branch for details.. we all like to save where we can. :thumbsup:
  12. O

    CTD Trade Loyalty cards

    Terms and conditions.... are nearly as long as War Peace!
  13. macten

    CTD 1st birthday bonanza Nottingham 3rd Oct

    Loads of great deals: Buy 3 Hardi250 get 2 free 25kg weber floor flex slc £8.99 20 kg Weber set plus white £6.99 20kg + 25% extra weber set rapid spf £8.99 plus loads more weber gear Homelux metal square edge trim buy 3 get 2 free 20kg ardex x7r £7.29 + 10kg ardex fl grout free 20kg ardex x77...
  14. AliGage

    CTD - Gemini Young Stone

    Just in the middle of pricing a job to convert a rather large bathroom into a bathroom and en-suite. My (potential) customer wants Gemini Young Stone (600x300) which i believe weighs about 5kg a tile? (5.5 tiles per square metre) Basically, just wanted to ask you guys if any of you have fixed...
  15. M

    CTD - hello

    Evening all, Just a quick hello from CTD. Glad to be on board. Hopefully I can add some useful information to the forum. Kind Regards Mark
  16. AliGage

    Rubi TX 700 - £119.94 @ CTD

    I received an e-mail from CTD with there lastest offers for June and July. The TX700 isn't on the offer sheet. But, if anyone remembers a post i made a week or so back where CTD were selling them off at £250.00. Well i went in there yesterday to look at what offers they had on and just out of...
  17. D

    Offers this week at CTD Newcastle.

    Just some latest offers from CTD...
  18. D

    CTD Trade Morning - 25th April Newcastle

    CTD Newcastle Trade day... Some great prices to be had with Weber and Mapei etc... Ideal pallet buying opportunities.
  19. Dan

    CTD Trade Prices

    How are CTD doing with their trade prices at the moment?
  20. G

    Ctd

    Have been impressed with CTD prices this year and new brands being stocked. Dural & Marcrist products now available (anybody used a Marcrist drill?) and Armeg are gone. Been using the Capacino marble good value at £20 a m2. Also stocked up on the Rubi washboy sponges decent price, dont know...

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