Not exact matches
with
local weather patterns, but the consistent rise
in average global
temperatures.
Cuomo joined California
in signing on to the Under 2 MOU, an agreement between states, provinces and
local governments across the world to cap the rising
average temperature by the year 2100.
Ice core data from the poles clearly show dramatic swings
in average global
temperatures, but researchers still don't know how
local ecosystems reacted to the change.
By the end of this century, according to the new research, some «megapolitan» regions of the U.S. could see
local average temperatures rise by as much as 3 degrees Celsius,
in addition to whatever global warming may do.
A number of recent studies indicate that effects of urbanisation and land use change on the land - based
temperature record are negligible (0.006 ºC per decade) as far as hemispheric - and continental - scale
averages are concerned because the very real but
local effects are avoided or accounted for
in the data sets used.
So, these — real estate is a very
local industry so different part — that's like when Canadian real estate stats come out, CREA, Canadian Real Estate Association, they — when they say oh, the
average price of a home
in Canada is up 5 % or down 5 %, I think that's always —
in my head I always think that's about as relevant as what is the
average temperature in Canada right now.
► The
local climate is tropical, with
temperatures averaging from 30 Celsius
in December to 22 Celsius
in June; there is a warm, dry winter from May to November and a hot and humid summer from November to May.
For example since the
temperature anomalies used
in the analyses are
local seasonal
averages, then an increase
in the value of a
temperature anomaly might arise simply from a shift
in the
local temperature distribution.
Human induced trend has two components, namely (a) greenhouse effect [this includes global and
local / regional component] and (b) non-greenhouse effect [
local / regional component]-- according to IPCC (a) is more than half of global
average temperature anomaly wherein it also includes component of volcanic activities, etc that comes under greenhouse effect; and (b) contribution is less than half — ecological changes component but this is biased positive side by urban - heat - island effect component as the met network are concentrated
in urban areas and rural - cold - island effect is biased negative side as the met stations are sparsely distributed though rural area is more than double to urban area.
If it is correct that you can only attribute changes
in mean
temperature to heat waves it ought to be the change
in the
local mean, for example the anomaly
in a particular region for a particular month
averaged over, say, the last decade.
So the intensity of radiation (at some frequency and polarization) changes over distance, such that,
in the direction the intensity is going, it is always approaching the blackbody value (Planck function) for the
local temperature; it approaches this quickly if the absorption cross section density is high; if the cross section density is very high and the
temperature doesn't vary much over distance, the intensity may be nearly equal to the Planck function for that location; otherwise its value is a weighted
average of the Planck function of
local temperature extending back over the path
in the direction it came from.
There can / will be
local and regional, latitudinal, diurnal and seasonal, and internal variability - related deviations to the pattern (
in temperature and
in optical properties (LW and SW) from components (water vapor, clouds, snow, etc.) that vary with weather and climate), but the global
average effect is at least somewhat constrained by the global
average vertical distribution of solar heating, which requires the equilibrium net convective + LW fluxes,
in the global
average, to be sizable and upward at all levels from the surface to TOA, thus tending to limit the extent and magnitude of inversions.)
Here we show that, worldwide, the number of
local record - breaking monthly
temperature extremes is now on
average five times larger than expected
in a climate with no long - term warming.
You really can not logically
average temperatures across the globe with such poor distribution of stations and such variability of accuracy
in local measurement capability.
People are affected far more by
local weather extremes than by any change
in global
average temperature.
That's the one that has been shown to be highly misleading as it defines extremes
in relative to the
local average temperatures of period 1951 - 1980.
As someone who is not well versed
in the methods discussed above by Paul Dunmore, HAS, Nebuchadnezzar, and Pekka, I would like input from any of them on what they presume might be the value of estimating global
temperature changes
in a manner not involving the grids or other forms of
local averaging.
The point is that comparing
local averages of past with
local extremes of the present selects strongly cases where the
local temperatures have risen more than the
average of all locations even
in absence of extremes.
Once such an IPCC exposition of the assumptions, complications and uncertainties of climate models was constructed and made public, it would immediately have to lead,
in my view, to more questions from the informed public such as what does calculating a mean global
temperature change mean to individuals who have to deal with
local conditions and not a global
average and what are the assumptions, complications and uncertainties that the models contain when it comes to determining the detrimental and beneficial effects of a «global» warming
in localized areas of the globe.
I am interested
in global
average temperatures only
in so far as it gives a feel for the severity of the impact at the
local level.
That 150 C range of
temperatures also covers a wide variety of terrains, and ground cover, even deep oceans, and the thermal energy flows
in each of those different environments relate to the
local temperature in totally different ways, so there is no relationship between the «
average» global
temperature (even if it was possible to measure such a number) and the energy balance of the planet.
Like
in school when the class
average mark goes up 10 marks does not mean that the whole class got exactly 10 marks more, the actual
local temperature rise will depend on your location, wind patterns etc..
Anyway with El Niño fading away and possibly a new El Nina with other natural cooing factors coming
in to play there is a good chance of another decade or more of «Pausing» or cooling
in global
temperatures which is itself a stupid concept as it cools and heats
in different places of the planet dependent on the
local climate conditions an
average is meaningless — you really need to dream up some more dire alarmist nonsense to keep your show on the road.
As
in the allegory, a «global
average»
temperature obscures critical dynamics that are best understood by examining
local causes of «regional climate» change.
Rabbit Flat and Learmonth are located
in the hot climates of the Northern Territory and WA's north - west coast, and are used as a variable
in this analysis to examine the influence of
local climates at new weather locations on Australia's
averaged temperature trends.
The glacier remained relatively stable from 1960 to 2002, coinciding with cooler - than -
average local summer
temperatures through the mid - 1990s.3 After
local summer
temperatures began to rise, around 1995, Kangerdlugssuaq's speed more than doubled, from an
average of 49 feet (15 meters) per day
in 2001 to 131 feet (40 meters) per day
in 2005.6
Local independent weather monitoring stations logged an
average of 6 degrees drop
in air
temperature lagging peak eclipse point by approximately 30 minutes.
BTW, on both mathematical and physical grounds, there is even less basis for expecting truly abrupt changes
in global
average temperatures than
in local ones.
One fundamental problem
in using any single location is that there's much more noise
in local temperatures than
in global or wide area
averages.
After choosing these sites, I used the option
in NOWData's
local search tool to search the
average annual
temperatures recorded
in each city for each year from 1895 through 2016.
Although UHI and instrument relocations can have a significant
local effect, they alone can not account for the overall nationwide picture of an increase
in annual
average temperature witnessed by all but one site since 2010.
It is stunning how many people think they're climate experts and are perfectly ignorant of the difference between changes
in global
average temperature and
local temperature variation.
Any variability
in oceanic circulation could have strong effects on
local, and hence
average temperature, even with a fixed energy budget.
«Global excursions», that is excursions
in «global
average temperature» tend to be small compared to
local events.
Has there ever been a caveat about the lack of any physical meaning
in local monthly, or globally,
averaged temperatures?
IMHO the emphasis on global
average surface
temperature in recent times, while understandable (if it really does rise 3 + K this century, the emphasis will have been justified) distracts from other issues that are just as important for
local climate (which is what we all actually experience).