Weather

The extent of sea ice in the southern hemisphere continues to cause a headache for climate scientists, with news this week that Antarctic sea ice is now at record levels, based on satellite data which began in the late 1970’s.

This is contrary to what climate models had predicted.

It’s thought that weather conditions at the South Pole, namely strengthening winds, is a possible explanation, but it’s another mystery for climate scientists already struggling to explain why most climate models have failed to predict the levelling off of global temperatures in the last 15 years or so.

At the other end of the planet, Arctic ice has staged a strong rebound this summer compared with last summer’s record minimum, reaching its lowest point just over a week ago.

But despite many headlines to the contrary, it in no way marks a reversal of the striking long term decline which has been observed since satellite data was first gathered during the late 1970’s.

And it’s worth adding that the overall loss of Arctic sea ice in recent years has been happening faster than most climate models anticipated.

 

 

Follow me on twitter @Hudsonweather

Comments

This entry is now closed for comments.

  • Comment number 185. Posted by greensand

    on 3 Oct 2013 16:53

    184. QuaesoVeritas

    "In my comment about NH/SH, I meant v 2012.

    Of course, those for this Sept. are much higher than for August."

    Yup, had got that QV, having watched a persistently warm North Pacific through Sept I expected a jump in global, just surprised at the SH being warmer than the NH

    • This entry is now closed for comments. Number of positive ratings for comment 185: 0
    • This entry is now closed for comments. Number of negative ratings for comment 185: 0
    Loading…
  • Comment number 184. Posted by QuaesoVeritas

    on 3 Oct 2013 16:31

    re my post # 180

    In my comment about NH/SH, I meant v 2012.

    Of course, those for this Sept. are much higher than for August.

    • This entry is now closed for comments. Number of positive ratings for comment 184: 0
    • This entry is now closed for comments. Number of negative ratings for comment 184: 0
    Loading…
  • Comment number 183. Posted by greensand

    on 3 Oct 2013 16:14

    180. QuaesoVeritas & lateintheday

    NH slightly down at 0.342c and SH slightly higher at 0.392c.

    NH lower than SH does surprise me. Reynolds SSTs up to 18th were far higher in the NH than the SH and sort of "confirmed" by "eyeballing" the unisys daily output. I was expecting the NH to be significantly higher than the SH. Will have to await the ocean split.

    • This entry is now closed for comments. Number of positive ratings for comment 183: 0
    • This entry is now closed for comments. Number of negative ratings for comment 183: 0
    Loading…
  • Comment number 182. Posted by QuaesoVeritas

    on 3 Oct 2013 15:56

    No RSS data due to the "shutdown"!

    http://www.remss.com/data/msu/monthly_time_series/

    • This entry is now closed for comments. Number of positive ratings for comment 182: 0
    • This entry is now closed for comments. Number of negative ratings for comment 182: 0
    Loading…
  • Comment number 181. Posted by QuaesoVeritas

    on 3 Oct 2013 15:51

    #178. ukpahonta

    "Specific heat, it takes more energy to raise the temperature of water than air."

    About 1000x more?

    I am still not convinced.

    Clearly if the heat had gone into the atmosphere and not the ocean in the first place, the atmospheric temp. wouldn't be 200 degrees higher than it is now, so why would it be if the heat comes out of the ocean retrospectively?

    • This entry is now closed for comments. Number of positive ratings for comment 181: 0
    • This entry is now closed for comments. Number of negative ratings for comment 181: 0
    Loading…
  • Comment number 180. Posted by QuaesoVeritas

    on 3 Oct 2013 15:48

    #179. lateintheday

    "UAH global 0.367 - quite a jump for September."

    Actually it makes this year's anomaly almost exactly the same as last September.
    NH slightly down at 0.342c and SH slightly higher at 0.392c.

    • This entry is now closed for comments. Number of positive ratings for comment 180: 0
    • This entry is now closed for comments. Number of negative ratings for comment 180: 0
    Loading…
  • Comment number 179. Posted by lateintheday

    on 3 Oct 2013 13:46

    UAH global 0.367 - quite a jump for September.

    • This entry is now closed for comments. Number of positive ratings for comment 179: 0
    • This entry is now closed for comments. Number of negative ratings for comment 179: 0
    Loading…
  • Comment number 178. Posted by ukpahonta

    on 3 Oct 2013 12:15

    #177 QV

    Specific heat, it takes more energy to raise the temperature of water than air.

    • This entry is now closed for comments. Number of positive ratings for comment 178: 0
    • This entry is now closed for comments. Number of negative ratings for comment 178: 0
    Loading…
  • Comment number 177. Posted by QuaesoVeritas

    on 3 Oct 2013 12:04

    #176. ukpahonta

    "Don't know the exact figure but he is in the right area, theoretically. Physically impossible but that's never stopped a good scare story.
    The premise is that the increased heat in the entirety of the ocean mass is transferred into the smaller atmospheric mass in an instant. It follows the lines of some of the reportedly alarmist papers that are published. Ok as a thought concept but of no practical value."

    As I understand it, it is the amount of heat which has accumulated as a result of the atmosphere not increasing as much as predicted, for the sake of argument, say that is 0.2c.
    I don't really see why it should make any difference whether the heat is released in 1 sec or 10 years, it would surely just increase by 0.2c more quickly?

    • This entry is now closed for comments. Number of positive ratings for comment 177: 0
    • This entry is now closed for comments. Number of negative ratings for comment 177: 0
    Loading…
  • Comment number 176. Posted by ukpahonta

    on 3 Oct 2013 11:51

    #175 QV

    Don't know the exact figure but he is in the right area, theoretically. Physically impossible but that's never stopped a good scare story.
    The premise is that the increased heat in the entirety of the ocean mass is transferred into the smaller atmospheric mass in an instant. It follows the lines of some of the reportedly alarmist papers that are published. Ok as a thought concept but of no practical value.

    • This entry is now closed for comments. Number of positive ratings for comment 176: 0
    • This entry is now closed for comments. Number of negative ratings for comment 176: 0
    Loading…
More comments

More Posts

Previous