Nevertheless, present - day climate GCMs are able to successfully model
the seasonal variability of the climate system.
Despite this successful application of an emergent constraint, the generation of models that followed (CMIP5) continued to exhibit a large spread in
seasonal variability of snow - albedo changes (Qu and Hall 2014).
The impacts of the marked
seasonal variability of factors such as net radiation and / or temperature at high latitude sites are of far more importance for tree growth than the small seasonal variation in CO2 (a well - mixed gas).
Seasonal variability of Northern Hemisphere snow extent using visible satellite data.
Error bars due to
seasonal variability of 15 - 20 %.
All labels comply with current regulations and given
the seasonal variability of fruit available here and of imported product from overseas markets, changing labels on almost a batch - by - batch basis to reflect the exact country - of - origin isn't practical.
Allabakash S., P. Yasodha, L. Bianco, S. Venkatramana Reddy, P. Srinivasulu and S. Lim (September 2017): Improved boundary layer height measurement using a fuzzy logic method: Diurnal and
seasonal variabilities of the convective boundary layer over a tropical station.
Not exact matches
Selection
of the ten weekdays immediately prior to October 15 mitigates the effect
of external trends such as macro events and
seasonal variability on results.
The report, led by PhD student Richard Hall and Professor Edward Hanna from the University
of Sheffield's Department
of Geography, discovered that up to 35 per cent
of this
variability may be predictable — a significant advance which may help in the development
of seasonal forecasting models.
Also, according to the researchers,
seasonal climate forecasts enable a more effective and dynamic adaptation to climate
variability and change, offering an underexploited opportunity to reduce the fire impact
of adverse climate conditions.
But beyond the 80 percent mark, the amount
of energy storage required to overcome
seasonal and weather
variabilities increases rapidly.
In general, Gall explained, the study revealed that the wastewater treatment plant effectively removed acetaminophen and caffeine and exhibited
seasonal variability in the removal efficiency
of the other compounds.
Overall it was found that regional
variability in carbon system parameters is relatively small;
of variation in inshore reefs, the largest contributor was
seasonal variation.
Water and extremophile microbiome
Seasonal variability in the persistence
of dissolved environmental DNA (eDNA) in a marine system: The role
of microbial nutrient limitation.
Application
of this relationship to existing datasets (5 to 200 m depth) demonstrates both
seasonal and interannual
variability in aragonite saturation state.
Seasonal to centennial - scale
variability of microparticle concentration and size distribution in the WAIS Divide ice core over the past 2.4 ka.
The sampling issues arise from the fact that sea ice is highly dynamic with lots
of spatial and
seasonal variability so that measurements from individual moorings, submarine sonar tracks, and aircraft flights can only construct an incomplete picture
of the evolution
of the total Arctic sea ice volume.
Boyce et al. are incorrect in suggesting that the ability
of their dataset to represent this
seasonal to interannual
variability adds confidence to their main result.
But more generally, something I've wondered is: while in the global annual average, aerosols could be said to partly cancel (net effect) the warming from anthropogenic greenhouse forcing, the circulatory, latitudinal, regional,
seasonal, diurnal, and internal
variability changes would be some combination
of reduced changes from reduced AGW + some other changes related to aerosol forcing.
The ability
of a sampling method to accurately measure
seasonal variability does not indicate that the method is valid for estimating trends over centennial time scales.
However if we have a similar profile
of volume loss as in the preceding two years then random
variability looks very unlikely and I'll be veering to the following viewpoint — that something new and radical has happened in the
seasonal cycle
of sea - ice loss, a new factor that in principle could have the power to make a virtually sea ice free state in September plausible this decade.
These shape the 4 - dimensional pattern
of temperature and other changes — the patterns
of circulation, latent heating, and precipitation will shift, as can the cycles driven the imposed diurnal and
seasonal cycles in incident solar radiation; the texture
of internal
variability can also shift.
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.)
(57m) However, externally imposed forcings with a global average externally imposed RF may tend to cause similar climatic responses both in the global average and in regional / latitudinal and
seasonal (modulation
of response to external - forcing cycles that themselves are held constant) and internal
variability patterns, provided they are not too idiosyncratic.
And, that just coincidently, the rate
of the rise has consistently been (when averaged over a few year period to smooth out
variability due to
seasonal cycles and other factors) equal to about half
of the emissions
of CO2 that we are putting into the atmosphere?
Most studies have adopted incremental scenarios
of constant changes throughout the year (e.g., Terjung et al., 1984; Rosenzweig et al., 1996), but some have introduced
seasonal and spatial variations in the changes (e.g., Whetton et al., 1993; Rosenthal et al., 1995) and others have examined arbitrary changes in interannual, within - month and diurnal
variability as well as changes in the mean (e.g., Williams et al., 1988; Mearns et al., 1992; Semenov and Porter, 1995; Mearns et al., 1996).
Ms Najira said that the Government
of Malawi is using climate information to derive resilient designs and to address the impacts
of climate change and
variability, to plan for disaster risk management and for contingency planning (
seasonal forecasts).
We present a large - scale Southern Ocean observational analysis that examines the
seasonal magnitude and
variability CO32 − and pH. Our analysis shows an intense wintertime minimum in CO32 − south
of the Antarctic Polar Front and when combined with anthropogenic CO2 uptake is likely to induce aragonite undersaturation when atmospheric CO2 levels reach ≈ 450 ppm.»
Although such approaches provide important spatial coverage
of long - term trends, their accuracy will be difficult to assess unless
seasonal and interannual time scales
of pH
variability can be adequately resolved.»
IMO the significance
of this paper is in understanding
seasonal snowfall
variability, which is a goal
of seasonal forecasting.
Because
of intermittency and
seasonal variability, the Texas grid (Electric Reliability Council
of Texas) rates wind generation only at 8.7 percent
of wind's installed capacity.
This study investigates the
variability of convective and stratiform rainfall from 8 yr (1998â $ «2005)
of Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) and TRMM Microwave Imager (TMI) measurements, focusing on
seasonal diurnal
variability.
There has been extensive research concerning the effects
of climate change on water - and food - borne disease transmission.86, 87,88,89,90,91,92,93,94,95,96 The current evidence base strongly supports waterborne diarrheal disease being both
seasonal and sensitive to climate
variability.
Variability, trends, and predictability
of seasonal sea ice retreat and advance in the Chukchi Sea.
Lead author Dr Debbie Polson,
of the University
of Edinburgh's School
of GeoSciences, said: «This study shows for the first time that the drying
of the monsoon over the past 50 years can not be explained by natural climate
variability and that human activity has played a significant role in altering the
seasonal monsoon rainfall on which billions
of people depend.»
This project uses data from a suite
of advanced atmospheric reanalyses, satellite remote sensing and model experiments to address the characteristics,
variability and environmental impacts
of the Summer Arctic Frontal Zone (AFZ), and how this
seasonal feature may change over the next century.
CO2 has
seasonal and diurnal
variability (natural) on top
of its large amplitude shift, making it like a vibrating wildly swinging persistent growing stick in the hornet's nest, the biggest and suddenest stick we know
of, and with an ugly shape unlike anything hornets have ever known before.
Moreover, our simulation captures major
seasonal and regional characteristics
of the hiatus, including the intensified Walker circulation, the winter cooling in northwestern North America and the prolonged drought in the southernUSA.Our results show that the current hiatus is part
of natural climate
variability, tied specifically to aLa - Nina - like decadal cooling.
For example, the NAOS array
of profiling floats in the Mediterranean Sea, equipped with nitrate sensors, shows
seasonal variability that was previously unobservable [Pasqueron de Fommervault et al., 2015].
1) During the time period when CO2 measurements have been made in Mauna Loa the most visible changes in the increasing rate
of the atmospheric CO2 content are caused by the
seasonal variability in the exchange rate
of CO2 between biosphere and atmosphere; e.g. Bob Tisdale http://i37.tinypic.com/al6ips.jpg.
Building on previous efforts, this three - day workshop will use the outcomes to guide synthesis efforts, coordinate on - going research to fill out key gaps, and provide specific recommendations for accelerating scientific progress — with the aim to improve our understanding and predictability
of 1) high - to mid-latitude climate
variability on subseasonal - to -
seasonal and on interannual - to - decadal timescales and 2) climate extremes.
«A climate pattern may come in the form
of a regular cycle, like the diurnal cycle or the
seasonal cycle; a quasi periodic event, like El Niño; or a highly irregular event, such as a volcanic winter... A mode
of variability is a climate pattern with identifiable characteristics, specific regional effects, and often oscillatory behavior... the mode
of variability with the greatest effect on climates worldwide is the
seasonal cycle, followed by El Niño - Southern Oscillation, followed by thermohaline circulation.»
Moreover, we suggest that accounting for any spatial or
seasonal biases in the stack would tend to reduce its
variability because
of the cancellation
of noise in a large - scale mean and the opposing nature
of seasonal insolation forcing over the Holocene, causing the Holocene temperature distribution to contract.
Sea ice with its strong
seasonal and interannual
variability (Fig. 1) is a very critical component
of the Arctic system that responds sensitively to changes in atmospheric circulation, incoming radiation, atmospheric and oceanic heat fluxes, as well as the hydrological cycle1, 2.
Fahl, K. & Stein, R. Modern
seasonal variability and deglacial / Holocene change
of central Arctic Ocean sea - ice cover: new insights from biomarker proxy records.
To describe and understand the physical processes responsible for climate
variability and predictability on
seasonal, interannual, decadal, and centennial time - scales, through the collection and analysis
of observations and the development and application
of models
of the coupled climate system, in cooperation with other relevant climate - research and observing programmes.
Even where increases are projected, there can be short - term shortages due to more variable streamflow (because
of greater
variability of precipitation), and
seasonal reductions
of water supply due to reduced snow and ice storage.
However, climate variables, such as temperature and concentration
of water vapor in the Earth's atmosphere, are noisy and subject to
seasonal and interannual
variabilities.
@PD: we all know that natural
variability on a
seasonal basis at least in Australia can be around 10 degrees C... My feeling is that) 0.25 degrees C is too small amount to be concerned about given the spread
of natural
variability.
Come on Richard, The
seasonal variation has nothing to do with the year by year
variability in rise
of CO2 levels nor with the trend itself.