Sentences with phrase «even over a timescale»

Not exact matches

Cycles that drive changes in the ocean's chemistry and organisms take place over hours, days, seasons, years and even decades — timescales NEPTUNE can track.

Future systems should be able to achieve even better sensitivities over shorter timescales.

«It is surprising, but Earth's atmosphere is about 50 trillion metric tons in mass, and so over long enough timescales — hundreds, thousands, even millions of years — all of that mass, and its drag across the surface of the planet, can have an effect,» said study author Caleb Scharf, director of astrobiology at Columbia University in New York.

Building History is designed to be used as a project over a series of lessons - however can easily be adapted to shorter lesson timescales or even as a starter.

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).

(I take comfort in the fact that no one else can either) Even if I understood completely and could hypothesise the effect of the huge number of factors and correlations and feedback mechanisms that drive the climate I would not have accurate measurements over any significant timescale to prove this.

Over very long time periods such that the carbon cycle is in equilibrium with the climate, one gets a sensitivity to global temperature of about 20 ppm CO2 / deg C, or 75 ppb CH4 / deg C. On shorter timescales, the sensitivity for CO2 must be less (since there is no time for the deep ocean to come into balance), and variations over the last 1000 years or so (which are less than 10 ppm), indicate that even if Moberg is correct, the maximum sensitivity is around 15 ppm CO2 / deg C. CH4 reacts faster, but even for short term excursions (such as the 8.2 kyr event) has a similar sensitivOver very long time periods such that the carbon cycle is in equilibrium with the climate, one gets a sensitivity to global temperature of about 20 ppm CO2 / deg C, or 75 ppb CH4 / deg C. On shorter timescales, the sensitivity for CO2 must be less (since there is no time for the deep ocean to come into balance), and variations over the last 1000 years or so (which are less than 10 ppm), indicate that even if Moberg is correct, the maximum sensitivity is around 15 ppm CO2 / deg C. CH4 reacts faster, but even for short term excursions (such as the 8.2 kyr event) has a similar sensitivover the last 1000 years or so (which are less than 10 ppm), indicate that even if Moberg is correct, the maximum sensitivity is around 15 ppm CO2 / deg C. CH4 reacts faster, but even for short term excursions (such as the 8.2 kyr event) has a similar sensitivity.

The correspondence to obvserved changes in C02 on timescales of a couple of years, over the satellite era and to the degree seen even over the 20th century, makes it difficult not to conclude that sources involed in changes of C02 on short timescales are also involved in its change on long timescales.

Even at 2.0 °C, and certainly above it, it is thought that the Earth would cross certain tipping points, beyond which the operation of the Earth System is changed in an irreversible way, at least over timescales of hundreds of thousands of years.

The problems with determining a GMT through ever changing stations and methods and instruments over century timescales is daunting, even if one assumes honesty and ignore the power of monetary and political forces to corrupt.

Our study has identified soil water predictability even beyond the interannual timescales, thus extending the potential predictive range of hydrological conditions over North America to almost a decade.

«Over relatively short, non-climate timescales (less than 20 - 30 years), these patterns of natural variability can lead to all kinds of changes in global and regional near - surface air temperature: flat, increasing, or even decreasing trends,»

Dr Lee Moroney, the Renewable Energy Foundation's planning director, said: «Experience is teaching us that wind power is not only highly variable over short timescales, but also from year to year and even in regions which have previously performed well.

Over even longer timescales, solar variation via clouds would appear to be a (or the) major factor.