Sentences with phrase «seasonal cycle over»

Mechoso, C. R., and and Coauthors,, 1995: The seasonal cycle over the tropical Pacific in coupled ocean — atmosphere general circulation models.

I tested use of the OLR seasonal cycle over the 30S — 30N latitude zone only, thereby reducing the number of predictor variables to 936 — still a large number, but under 4 % of the 23,976 predictor variables used in BC17.

Mechoso, C.R., et al., 1995: The seasonal cycle over the tropical Pacific in general circulation model.

Not exact matches

This time frame allowed us to observe over almost a full seasonal cycle: we watched Saturn's and Titan's southern hemispheres go from summer to winter and their northern hemispheres go from winter to summer.

Meanwhile, permafrost observers the world over will take measurements in boreholes at least 30 meters (100 feet) deep — the depth where temperatures do not fluctuate during seasonal cycles — though some will stretch much deeper.

Rainfall may have been seasonal, or wet intervals may have occurred over longer cycles.

Summer insolation decreased by 0.33 W m — 2 at 45 ° N over the millennium, winter insolation increased by 0.83 W m — 2 (Goosse et al., 2005a)(Errata), and the magnitude of the mean seasonal cycle of insolation in the NH decreased by 0.4 W m — 2.

These words are: ECOLOGY, BIOSPHERE, BIOTIC FATORS, ABIOTIC FACTORS, POPULATION, BIOLOGICAL COMMUNITY, BIOME, ORGANISM, HABITAT, NICHE, SYMBIOSIS, PREDATION, MUTUALISM, COMMENSALISM, PARASITISM, AUTOTROPH, HETEROTROPH, HERBIVORE, CARNIVORE, OMNIVORE, DETRITIVORES, TROPHIC LEVEL, FOOD CHAIN, FOOD WEB, BIOMASS, MATTER, NUTRIENT BIOCHEMICAL CYCLE, NITROGEN FIXATION, DENITRIFICATION, COMMUNITY, LIMITING FACTOR, TOLERANCE, ECOLOGICAL SUCCESSION, PRIMARY SUCCESSION, CLIMAX COMMUNITY, SECONDARY SUCCESSION, TUNDRA, CLIMATE, LATITUDE, WEATHER, BOREAL FOREST, TEMPERATE FOREST, WOODLANDS, GRASSLAND, DESERT, TROPICAL SAVANNA, TROPICAL SEASONAL FOREST, TROPICAL RAIN FOREST, SEDIMENT, LITTORAL ZONE, PROFUNDAL ZONE, PLANKTON, WETLANDS, ESTUARY, NTERTIDAL ZONE, PHOTIC ZONE, APHOTIC ZONE, BENTHIC ZONE, ABYSSAL ZONE, POPULATION DENSITY, DISPERSION, DENSITY - INDEPENDENT FACTOR, DENSITY - DEPENDENTLY FACTOR, POPULATION GROWTH RATE, EMIGRATION, IMMIGRATION, CARRYING CAPACITY, DEMOGRAPHIC TRANSISTIONS, ZERO POPULATION GROWTH, AGE STRUTURE, EXTINCTION, BIODIVERSITY, GENETIC DIVERSITY, SPECIES DIVERSITY, ECOSYSTEM DIVERSITY, BACKGROUND EXTINCTION, MASS EXTINCTION, NATURAL RESOURCES, OVER EXPLOITATION, HABITAT FRAGMENTATION, BIOLOGICAL MAGNIFICATION, EUTROPHICATION, INTRODUCED SPECIES, RENEWABLE RESOURCES, NONRENEWABLE RESOURCES, NONRENEWABLE RESOURCES, SUSTAINABLE USE, ENDEMIC, BIOLOGICAL AUGMENTATION, BIOREMEDIATION, PRODUCER, CONSUMER, FUNDAMENTAL NICHE, PIONEER SPECIES, REALIZED NICHE, LIMITING FACTOR, PREY, ENERGY PHYRAMIND, PRIMARY CONSUMER, SECONDARY CONSUMER, HOST, GREEN HOUSE EFFECT, POLAR ZONE, TROPICAL ZONE, CANOPY, DECIDUOU, CONIFEROUS, HUMUS

14CO varies by factor of two or more over the seasonal cycle, whereas methyl chloroform only varies by a few percent.

(1) You compare a seasonal cycle (which over the year integrates out to zero) with a mean flux.

Tuning to the seasonal cycle, or to the climatological average, or to the variance of some field — which can be well characterised from observations, is different to tuning to a transient change of over time — which is often less well known.

Second, predictions of seasonal effects are simple extrapolations of statistical records accumulated in real time over many generations, and over many summer / winter cycles, but we do not have comparable statistical records accumulated in real time over many cycles of increasing / decreasing GHGs.

The pattern would respond to externally forced diurnal and seasonal and orbital - scale cycles with some lag time from thermal and mechanical and compositional, etc, inertia, but with a constant pattern of heat accumulation and depletion over each cycle.

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?

By that standard, last week in Rochester we should have stopped preparing for winter given that we had several days of warm temperatures that surely made the temperature trends over some reasonable time period of a week or more positive rather than negative, as would be expected if this seasonal cycle theory was real.

Using modern spatiotemporal records of oxygen production and oxygen isotopes in terrestrial precipitation, the authors demonstrate that their proposed relationship is robust over the modern seasonal cycle.

Nic, if I understand correctly, you're saying the basic statistical intention of the paper was not achieved; the PLS method as applied apparently improperly weighted predictors as evidenced by the superior skill of a single predictor, OLR seasonal cycle, over their group of predictors.

Of course the trend in CO2 is the difference over a full seasonal cycle, as I said before, but the seasonal cycle doesn't cause the trend, doesn't influence the trend and simply has nothing to do with the trend, whatever the real cause of the trend is.

The «difference over a full seasonal cycle» is the residual of the seasonal variation.

The first part of this thesis compares the seasonal cycle and interannual variability of Advanced Very High Resolution Radiometer (AVHRR) and Total Ozone Mapping Spectrometer (TOMS) satellite retrievals over the Northern Hemisphere subtropical Atlantic Ocean, where soil dust aerosols make the largest contribution to the aerosol load, and are assumed to dominate the variability of each data set.

Nicholas, the natural variability after a full seasonal cycle is only + / - 1 ppmv around the trend over the past 55 years, which is recently over 2 ppmv / year net increase with human emissions of around 4.5 ppmv / year.

The only way you get in trouble is if the composition of the network is changing over time and if you do not remove the underlying climatology / seasonal cycle through the use of anomalies or similar methods.

Her research focuses on understanding variability and trends in the seasonal cycle of rainfall over Africa.

Seems unlikely to make much difference over large scale averages but wouldn't this be a potential problem for accurate reproduction of more intricate details like seasonal or diurnal cycles in individual grid cells or regions?

So is there an excess value for DLR over L at the tropics when one considers the diurnal cycle and as one moves away from the tropics, the seasonal cycle?

Summer insolation decreased by 0.33 W m — 2 at 45 ° N over the millennium, winter insolation increased by 0.83 W m — 2 (Goosse et al., 2005a)(Errata), and the magnitude of the mean seasonal cycle of insolation in the NH decreased by 0.4 W m — 2.

I came to think of solar radiation as being the ultimate (and only) external forcing of the climate system, which, except for the orbital seasonal changes and the 11 - year sunspot cycle, has been essentially constant over the past several decades of precision solar irradiance monitoring.

Seasonal cycle Δαs / ΔTs values are the difference between 20th - century mean April and May αs averaged over Northern Hemisphere continents divided by the difference between April and May Ts averaged over the same area and time period.

Regonda et al 2005: «Seasonal Cycle Shifts in Hydroclimatology over the Western United States» http://civil.colorado.edu/~balajir/my-papers/regonda-etal-jclim.pdf

The latter is determined as a moving average of SEVEN adjacent seasonal cycles centered on the month to be corrected, except for the first and last THREE and one - half years of the record, where the seasonal cycle has been averaged over the first and last SEVEN years, respectively.

It is exactly for the same reason that the temperature trend here in Rochester over a period of, say, a week or so can be negative in the spring even though there is no denying that the seasonal cycle is strong here and that the predicted temperature trend in the spring is positive.

CO2 has a seasonal cycle due to the «breathing» of the biosphere, but is steadily increasing over the years due to human emissions.