«We were able to show that storm and ocean wave activity in the Drake Passage, the ocean basin between the Antarctic Peninsula and South America, increases
during positive phases of the Southern Annular Mode,» he explained.
During its positive phase the ocean temperatures in the tropical Pacific are unusually warm and those outside this region to the north and south are often unusually cool.
According to their observations, sea surface temperatures in the Atlantic can be up to 1.5 °C warmer in the Gulf Stream region
during the positive phase of the AMO compared to the negative, colder phase.
During the positive phase of the AO, cold air is characteristically locked up over the Arctic by a strong polar vortex, and the mid-latitudes tend to be mild.
It can be done at the start of the rep and held, it can be done
during the positive phase of the rep or during the negative phase of the rep, or both.
Typically,
during a positive phase of the AO, surface winds push ice away from the shores of Siberia, and any young, thin ice that is subsequently formed is prone to melting in summer.
During the positive phase of the IPO, and during El Nino, the circulation winds down.
During the positive phase, El Niño is the dominant global weather pattern, and during the negative phase, La Niña is dominant.
1979 to 2008 was
during the positive phase of the PDO, and it also encompassed a couple of fairly active solar cycles.
Not exact matches
Having generated an approving cheer in relation to the unequal formal departure date she dared to tell none other than the deified Jacob Rees Mogg that the European Court would inevitably have some jurisdiction
during the transition
phase, or what she calls the implementation
phase (a phrase coined by David Davis to make the process seem more
positive).
During the IOD's
positive phase, sea surface temperatures rise in the Arabian Sea and fall around Indonesia, changes which reverse in the negative
phase.
There are almost as many methods of training as there are trainers, but over time the basic strategy has shifted away from punishment or avoidance training (negative reinforcement) to
positive reinforcement, where the dog is rewarded for doing the correct thing
during most
phases of training rather than being punished for not doing what the trainer wants.
During the other
phase of NAO, when the air pressure difference is weaker, the same areas have shown
positive changes, in crop productivity.
«It confirms that the
during the Medieval Warm Period between 1080 and 1430 the oscillation index was in an unusually prolonged
positive phase, which brings increased rain to Scotland and drier conditions in the western Mediterranean,» says Baker, of the UNSW Connected Waters Initiative Research Centre.
For samples collected
during the post-treatment
phase, Lab A concluded that two of 24 samples were
positive and three were suspicious.
In contrast, the NAO index is only weakly correlated with the North Atlantic SST
during the AMO
positive phase.
the static or isometric
phase,
during which time the weight is changing from the negative to the
positive phase (in other words, «holding» the weight)
Also, the conventional deadlift begins with a
positive phase that does not allow you to accumulate elastic energy in your muscles
during the descent (as occurs
during a squat).
In contrast, the amount of
positive work done
during each stance
phase does not increase very much at all.
Adoption age is a balancing act between protecting puppy from fear experiences
during fear imprinting
phase, and making sure it gets heaps of
positive exposure to a wide range of people, places and things before 12 to 14 weeks of age to ensure successful socialization.
When a dog tests
positive for heartworm, the AHS protocol includes a 60 - day pre-treatment
phase during which dogs are administered doxycycline and two doses of a monthly heartworm preventive prior to beginning melarso - mine injections.
To develop healthy social skills with people, pups require
positive exposure
during a critical
phase.
We are confident in our capacity to rise to the short - term challenges posed by the transition
phase, thanks to the very high quality of our games, which, combined with the upcoming arrival of the next - generation consoles and the traditional ramp - up of sales
during the Christmas season will trigger
positive momentum towards the end of the year.»
During it's Greenlight
phase it held an entire year at a 99.5 %
positive review rating.
For the most part, I've not seen much evidence to suggest that internal variations alone can bring the climate to a new state on decadal timescales, even if the internal fluctuations do not completely average out over decades (e.g.,, the PDO being in a
positive phase more than a negative
phase during the timescale of consideration).
Most of the scientific observation and analysis of ENSO was since 1976 and as a result,
during a
positive PDO
phase.
WHOAS at MBLWHOI Library: Variation in Serripes groenlandicus... Interannual variation in growth corresponded to the Arctic Climate Regime Index (ACRI), with high growth rates
during the
positive ACRI
phase characterized... https://darchive.mblwhoilibrary.org/handle/1912/1232
Fig 2A shows that there are (small)
positive SST anomalies
during these ISOs and (clear) water vapour
positive anomalies, at least at the peak of the warming
phase of ISOs.
We are pleased to recognize the
positive impact with over $ 18 million in supplies, equipment, utilities and fuel sourced from local businesses
during the construction
phase and more than $ 20,000 contributed to local organizations to assist in their missions.»
In negative IPO
phases, an El Niño — Southern Oscillation (ENSO)- precipitation teleconnection dominates Australian rainfall variability, but this connection fades and drought risk is increased
during positive IPO
phases [Power et al., 1999; Kiem and Franks, 2004; Cai et al., 2010].
During that same period, average annual rainfall in New South Wales declined by 3.6 inches (92 millimeters).3 Scientists think the decline in autumn rainfall in southeast Australia since the late 1950s may be partly due to increases in heat - trapping gases in Earth's atmosphere.3, 14 Major bushfires over southeast Australia are linked to the
positive phase of an ocean cycle called the «Indian Ocean Dipole» — when sea surface temperatures are warmer than average in the western Indian Ocean, likely in response to global warming.15, 16
There are at least 2 papers that talk about a «
phase catastrophe»
during the Maunder and Dalton minima implying either a period when the solar poles are both the same polarity for an extended period or the cycle goes to 22 years instead of 11, I also think its highly possible that both poles could fluctuate between
positive and negative through the entire cycle if the new polar inflows are not strong enough to change the polarity.
During the
positive AO
phase there is little mixing of atmospheric masses between the Arctic and lower latitudes (mid-latitudes and subtropics) so the cold air stays bottled up in the Arctic and mild air dominates the mid-latitudes.
Thus, winter and spring atmospheric anomalies associated with the
positive phase of the NAO may underlie the reduction of summer sea ice extent observed
during the 1980s and 1990s.
Because the mean meridional temperature gradient of the subsurface ocean is
positive because of the temperature dome around 9 ° N, the advection by the anomalous northward current cools the TNA subsurface ocean
during the warm
phase of the AMO.
Indeed, the majority of climate models suggest global warming will produce a more
positive phase of the NAM
during this century, although the models, and the modeling community, are not in complete agreement.
Synoptic conditions with the
positive phase tend to consist of increased southerly flow and warm air advection into Alaska
during the winter, resulting in
positive temperature anomalies.
Synoptic conditions with the
positive phase tend to consist of increased southerly flow and warm air advection into Alaska
during the winter, resulting in
positive temperature anomalies...... http://akclimate.org/ClimTrends/Change/TempChange.html
To point out just a couple of things: — oceans warming slower (or cooling slower) than lands on long - time trends is absolutely normal, because water is more difficult both to warm or to cool (I mean, we require both a bigger heat flow and more time); at the contrary, I see as a non-sense theory (made by some serrist, but don't know who) that oceans are storing up heat, and that suddenly they will release such heat as a
positive feedback: or the water warms than no heat can be considered ad «stored» (we have no
phase change inside oceans, so no latent heat) or oceans begin to release heat but in the same time they have to cool (because they are losing heat); so, I don't feel strange that in last years land temperatures for some series (NCDC and GISS) can be heating up while oceans are slightly cooling, but I feel strange that they are heating up so much to reverse global trend from slightly negative / stable to slightly
positive; but, in the end, all this is not an evidence that lands» warming is led by UHI (but, this effect, I would not exclude it from having a small part in temperature trends for some regional area, but just small); both because, as writtend, it is normal to have waters warming slower than lands, and because lands» temperatures are often measured in a not so precise way (despite they continue to give us a global uncertainity in TT values which is barely the instrumental's one)-- but, to point out, HadCRU and MSU of last years (I mean always 2002 - 2006) follow much better waters» temperatures trend; — metropolis and larger cities temperature trends actually show an increase in UHI effect, but I think the sites are few, and the covered area is very small worldwide, so the global effect is very poor (but it still can be sensible for regional effects); but I would not run out a small warming trend for airport measurements due mainly to three things: increasing jet planes traffic, enlarging airports (then more buildings and more asphalt — if you follow motor sports, or simply live in a town / city, you will know how easy they get very warmer than air
during day, and how much it can slow night - time cooling) and overall having airports nearer to cities (if not becoming an area inside the city after some decade of hurban growth, e.g. Milan - Linate); — I found no point about UHI in towns and villages; you will tell me they are not large cities; but, in comparison with 20-40-60 years ago when they were «countryside», many small towns and villages have become part of larger hurban areas (at least in Europe and Asia) so examining just larger cities would not be enough in my opinion to get a full view of UHI effect (still remembering that it has a small global effect: we can say many matters are due to UHI instead of GW, maybe even that a small part of measured GW is due to UHI, and that GW measurements are not so precise to make us able to make good analisyses and predictions, but not that GW is due to UHI).
During the late 1990's the
positive IPO
phase weakened considerably and has been in the negative
phase since the year 2000.
The
positive phase of the AMO was also present
during the above - normal hurricane decades of the 1950s and 1960s, as indicated by comparing Atlantic SSTs (Figure 3.33) and seasonal ACE values (Figure 3.40).
For example, La Niña winters tend towards a stronger polar vortex and the
positive phase of the NAO, but if the polar vortex breaks down (which it's done many times
during La Niña winters; Butler & Polvani 2011) it will push the climate towards a negative NAO pattern, and the two effects tend to cancel over the season.
The session was kicked - off by Mr. Daniel Abreu, from the National Climate Change Council of the Dominican Republic, who highlighted «the experience of developing the National Climate Change Learning Strategy in the Dominican Republic
during the pilot
phase of UN CC: Learn was very
positive».
[*) Another contributing factor to a dominantly
positive phase for the NAO index is current and expected SST anomaly, with relatively cold waters west of the Azores, favouring high pressure build - up there, and relatively warm waters off the US - Canadian east coast, favouring northerly Atlantic depression formation (especially
during offshore winds).]
The North Atlantic Oscillation (NAO) is an important source of climate variability in the Northern Hemisphere; here, a model - tested reconstruction of the NAO for the past millennium reveals that
positive NAO
phases were predominant
during the thirteenth and fourteenth centuries, but not
during the whole medieval period.
As for why the Earth started heating up in 1978, that is pretty obviously due to the PDO going into its
positive phase (the previous 30 year cooling period was coincidentally
during the PDO's negative
phase).
Compare this: As for why the Earth started heating up in 1978, that is pretty obviously due to the PDO going into its
positive phase (the previous 30 year cooling period was coincidentally
during the PDO's negative
phase).
Siberian / eurasian warming
during volcanic excursions (due to the
positive phase of the AO) if you get the sign wrong eg Hanson or Schmidt in the various configurations show that there is indeed persistence of the ability to reproduce the wrong sign.
For a period
during the 1970s to mid-1990s, the Arctic Oscillation tended to stay in its
positive phase.
In contrast, the
positive phase of the Southern Oscillation occurs
during La Niña episodes, and refers to the situation when abnormally low air pressure covers Indonesia and the western tropical Pacific and abnormally high air pressure covers the eastern tropical Pacific.