Not exact matches
The deceleration in rising temperatures
during this 15 - year period is sometimes referred to as a «pause» or «
hiatus» in global
warming, and has raised questions about why the rate of surface
warming on Earth has been markedly slower than in previous decades.
Whether the 2014 record, if confirmed, means the end of the so - called
warming hiatus is unclear, WMO's Michel Jarraud told reporters this morning
during a teleconference.
The
warm sea surface temperatures in the gyres,
during hiatus decades, indicate convergence of near - surface currents and strong downwelling of heat.
The underlying anthropogenic
warming trend, even with the zero rate of
warming during the current
hiatus, is 0.08 C per decade.
The error is small enough to have confidence that the ocean heat content has been increasing in the past 15 years,
during the so called «
hiatus» in global
warming.
This means — as the NCAR model shows — that
during hiatus periods the deep ocean could
warm 18 percent more, simultaneous with 60 percent less
warming in the upper ocean.
Both versions of the Cowtan and Way (2013) data have slightly higher long - term (1979 - 2012)
warming rates than HADCRUT4, but they have much higher
warming rates than HADCRUT4
during the
hiatus period of 1997 - 2012.
Wang, L., Yuan, X., Xie, Z., Wu, P. & Li, Y. Increasing flash droughts over China
during the recent global
warming hiatus.
Ocean
warming: «Assessing recent
warming using instrumentally homogeneous sea surface temperature records» «Tracking ocean heat uptake
during the surface
warming hiatus» «A review of global ocean temperature observations: Implications for ocean heat content estimates and climate change» «Unabated planetary
warming and its ocean structure since 2006»
It was high
during the rapid
warming phase at the end of the C20th and low
during the cool
hiatus now.
150 years of
warming is actually evidence against since there are two extended periods of cooling
during that time lasting 30 to 40 years each which is far longer than the current
hiatus.
«Assessing recent
warming using instrumentally homogeneous sea surface temperature records» «Tracking ocean heat uptake
during the surface
warming hiatus» «A review of global ocean temperature observations: Implications for ocean heat content estimates and climate change» «Unabated planetary
warming and its ocean structure since 2006»
Higher ocean temperatures from global
warming have been proposed, but in 2014, she and colleagues published a paper in Geophysical Research Letters in which they suggested that Haiyan formed
during a
hiatus in
warming.
During the present «
warming hiatus» we need to come together and do what we must to create more
warming or prepare for global cooling with no end to the cooling in sight.
Volcanic eruptions and El Niño events are identified as sharp cooling events punctuating a long - term ocean
warming trend, while heating continues
during the recent upper - ocean -
warming hiatus, but the heat is absorbed in the deeper ocean.
If one is blaming internal variability for canceling out the anthropogenically forced
warming during the current
hiatus, one must admit that the former is not negligible compared to the latter, and the two are probably roughly of the same magnitude.
Responding to and in the manner of KK Tung's UPDATE (and, you can quote me): globally speaking the slowing of the rapidity of the
warming, were it absent an enhanced
hiatus compared to prior
hiatuses, must at the least be interpreted as nothing more than a slowdown of the positive trend of uninterrupted global
warming coming out of the Little Ice Age that has been «juiced» by AGW as evidenced by rapid
warming during the last three decades of the 20th Century, irrespective of the fact that, «the modern Grand maximum (which occurred
during solar cycles 19 — 23, i.e., 1950 - 2009),» according to Ilya Usoskin, «was a rare or even unique event, in both magnitude and duration, in the past three millennia [that's, 3,000 years].»
The previous and present models do project the possibility of a
hiatus in
warming, most commonly because increased wind shear over tropical oceans can transfer more energy into the oceans especialy
during the La Nina phase of the ENSO cycle.
The most widely used metric of global
warming — global surface temperatures — indicates that the rate of global
warming has slowed drastically and that the duration of the
hiatus in global
warming is unusual
during a period when global surface temperatures are allegedly being
warmed from the hypothetical impacts of manmade greenhouse gases.
A consensus about what has put global
warming on pause may be years away, but one scientist says the recent papers confirm that Earth's
warming has continued
during the
hiatus, at least in the ocean depths, if not in the air.
Dr. Jana Sillmann et al — IopScience — 18 June 2014 Observed and simulated temperature extremes
during the recent
warming hiatus «This regional inconsistency between models and observations might be a key to understanding the recent
hiatus in global mean temperature
warming.»
A study published Wednesday in Science Advances confirms once again that there was no global
warming hiatus or cooling period
during the past 20 years, an idea that had previously been raised in earlier assessments of sea surface temperature data.
The observed recent
warming hiatus, defined as the reduction in GMST trend
during 1998 — 2012 as compared to the trend
during 1951 — 2012, is attributable in roughly equal measure to a cooling contribution from internal variability and a reduced trend in external forcing (expert judgement, medium confidence).
Scientists are not only having trouble explaining why global surface temperatures did not
warm for 15 years in the 21st century, they still have not adequately explained why there was an even longer 30 - year «grand
hiatus» in global
warming during the mid-20th century.
«n summary, the observed recent
warming hiatus, defined as the reduction in GMST trend
during 1998 — 2012 as compared to the trend
during 1951 — 2012, is attributable in roughly equal measure to a cooling contribution from internal variability and a reduced trend in external forcing (expert judgment, medium confidence).
Only one (Meehl) voluntarily mentioned the pause, calling it a «
hiatus»
during which «
warming was not very large over last decade or so».