Navigation Links
IIT Delhi Scientist Finds Climate Models Consistent With Ocean Warming Observations

Climate models represent variability in ocean heat content on interannual-to-decadal time scales much more realistically than previously believed , a study by an Indian scientist has revealed.

Krishna Achuta Rao, previously at Livermore's Program for Climate Model Diagnosis and Intercomparison (PCMDI), and now at IIT, Delhi, used 13 numerical climate models to find the apparent discrepancies between modelled and observed variability.

He found, the variability could be explained by accounting for changes in observational coverage and instrumentation and by including the effects of volcanic eruptions.

He said the study has cast doubt on recent findings that the top 700-meters of the global ocean cooled markedly from 2003-2005. "Our analysis shows that the 2003-2005 'cooling' is largely an artefact of a systematic change in the observing system. The previous research was based on looking at the combined ocean temperature observations from several different instrument types, which collectively appear to have a cooling effect. But if you look at the observational instruments individually, there is no cooling," he said.

As part of the study, Rao and his team also looked at the impacts of changes in ocean observing systems. Researchers in Germany had recently discovered a warm bias in the older instruments.

However, now with the introduction of new instruments called Argo floats, more complete and more reliable ocean temperature measurements have become possible.

The first Argo floats were deployed in the Atlantic in 2000 and their network has rapidly ramped up to several thousand floats with near-global coverage of the world's oceans.

"This transition from a measuring system biased warm to a more realistic one appears as a cooling. Obviously, models can't account for spurious variability caused by instrument changes," said Rao.

The study appears in the June 18 o nline edition of the journal Proceedings of the National Academy of Sciences (PNAS).


'"/>




Related medicine news :

1. Hospital asked to Compensate Victim – Judgment by Delhi High Cour
2. Sharp Increase Of The Deadly Diseases In Delhi
3. Delhi Hospital Opens Up Avenues For Computer-Aided Knee Replacement
4. Dengue in Delhi – 26 Cases reported and 3 dea
5. Dengue fever in Delhi after the Monsoon
6. Delhi Government To Interlink All Major Hospitals Through e-Governance
7. Need for Psychotherapy for Delhi Blast Victims
8. British Scientists Doubt Delhi Doctor’s Stem Cell Claim
9. Wockhardt Group Plans Hospital In Delhi By End-2007
10. Delhi To Host International Women’s Congress From Nov 2
11. Good Response from Pregnant Women in Delhi for Free ART Therapy
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/24/2017)... ... , ... Only two months after the official release of The Private Collection ... XO Private has initiated a second print-run of its lavish luxury travel coffee table ... when open, weighs in at more than six kilos, retails at EUR 1,000 per ...
(Date:2/24/2017)... ... 2017 , ... The Smart Machine Age is here, and it’s disrupting everything. ... of all jobs in the United States may be taken over by technology in ... aggressive know-it-all who steamrolls over colleagues is drawing to a close. Success will belong ...
(Date:2/24/2017)... ... February 24, 2017 , ... The narrative in “ Signal 8: ... ’s true account of his paramedic experiences. Schanssema describes the tragedies he saw, as ... attempts to overcome them. , Schanssema, initially unsure of the career path he wanted ...
(Date:2/24/2017)... ... ... The International Association of Eating Disorders Professionals (iaedp) announces the 2017 top five ... art competition. Selected from 15 submissions from around the nation, the top five finalists ... iaedp Symposium, March 22 – 26 in Las Vegas. , This year, the competition ...
(Date:2/24/2017)... , ... February 24, 2017 , ... ... into the Senior International Elite division on February 12th. Ms. Esparza qualified ... at the elite qualifier competition held in Las Vegas, Nevada. Frida is one ...
Breaking Medicine News(10 mins):
(Date:2/24/2017)... Research and Markets has announced the addition of the "Urinary ... their offering. ... The latest research Urinary Incontinence Drugs Price Analysis and Strategies - ... Incontinence market. The research answers the following questions: ... Incontinence and their clinical attributes? How are they positioned in the ...
(Date:2/23/2017)... , Südkorea, 23. Februar 2017 LG ... für Sterilisationsaufgaben vorgestellt. Die Sterilisationsleistung beträgt das 1,5-fache des ... ultraviolette Strahlung im Bereich zwischen 200 und 280 nm und ... von Bakterien, indem es ihre DNA zerstört. Das Produkt ... ...
(Date:2/23/2017)... -- Research and Markets has announced the addition of the ... their offering. ... research Menopause Drugs Price Analysis and Strategies - 2016, provides drug pricing ... the following questions: What are the key ... in the Global Menopause market? What are the unit ...
Breaking Medicine Technology: