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:6/25/2016)... ... ... First Choice Emergency Room , the largest network of independent freestanding ... of its new Mesquite-Samuell Farm facility. , “We are pleased to announce Dr. ... James M. Muzzarelli, Executive Medical Director of First Choice Emergency Room. , Dr. ...
(Date:6/25/2016)... ... June 25, 2016 , ... ... recover from injury. Recently, he has implemented orthobiologic procedures as a method for ... is one of the first doctors to perform the treatment. Orthobiologics are substances ...
(Date:6/25/2016)... ... ... Conventional wisdom preaches the benefits of moderation, whether it’s a matter of indulgence ... high can result in disappointment, perhaps even self-loathing. However, those who set the bar ... from PsychTests.com reveals that behind the tendency to set low expectations is ...
(Date:6/24/2016)... ... ... Those who have experienced traumatic events may suffer from a complex set of ... or alcohol abuse, as a coping mechanism. To avoid this pain and suffering, Serenity ... event. , Trauma sufferers tend to feel a range of emotions, from depression, guilt, ...
(Date:6/24/2016)... ... ... in a crisis. Her son James, eight, was out of control. Prone to extreme mood ... something upset him, he couldn’t control his emotions,” remembers Marcy. “If there was a ... children and say he was going to kill them. If we were driving on ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 24, 2016  Global Blood Therapeutics, Inc. (GBT) (NASDAQ: ... novel therapeutics for the treatment of grievous blood-based ... closing of its previously announced underwritten public offering ... public offering price of $18.75 per share. All ... by GBT. GBT estimates net proceeds from the ...
(Date:6/24/2016)... , June 24, 2016 ... has announced the addition of the " Global ... This report ... provides an updated review, including its applications in various ... total market, which includes three main industries: pharmaceutical and ...
(Date:6/24/2016)... 24, 2016 The Academy of Managed Care ... that would allow biopharmaceutical companies to more easily ... make formulary and coverage decisions, a move that addresses ... medicines. The recommendations address restrictions in the ... the drug label, a prohibition that hinders decision makers ...
Breaking Medicine Technology: