Sentences with phrase «deposition rates»

To measure progress we monitor plastic debris deposition rates at isolated shore stations which is far more accurate than oceanic sampling.

In investigations of the past history of cosmic rays, the deposition rates (flux rates) of the beryllium isotope 10Be are often used as a proxy for the amount of cosmic rays.

SH and NH time series of temperature and scaled dust deposition rates for the last three glacial cycles.

Additional output from the ACCMIP runs will include concentration / mass of radiatively active species, aerosol optical properties, and radiative forcings (clear and all sky) as well as important parameters that do not directly influence climate such as hydroxyl, chemical reaction rates, deposition rates, emission rates, surface pollutants and diagnostics of tracer transport.

Parallel decreases in deposition rates of SO42 -, NO3 -, and NH4 + have resulted in a rapid reversal in hydro - chemistry of acidified lakes in the Sumava Mountains and the High Tatra Mountains.

«Recently, the deposition rates have been boosted by the resuspension of radionuclides in deposited particles, the 239,240 Pu content of which may originate from dusts from the East Asian continent deserts and arid areas.

``... dust deposition rates vary greatly among these archives, they all exhibit striking, nonlinear increases toward coldest glacial conditions.

To measure progress we monitor plastic debris deposition rates at isolated shore stations which is far more accurate than oceanic sampling.

The deposition rates for viruses were nine to 461 times greater than the rates for bacteria.

The research revealed a specific regime of temperature and deposition rates leading to thermodynamically unexpected cubic shapes of final nanoparticles.

Using previous studies of the pond's deposition rates, geologist Katrin Monecke of Wellesley College in Massachusetts and her colleagues determined the layer dates to between 1740 and 1810.

«While concentrations measured in Antarctic ice cores are very low, the records show that atmospheric concentrations and deposition rates increased approximately six-fold in the late 1880s, coincident with the start of mining at Broken Hill in southern Australia and smelting at nearby Port Pirie.»

Since the deposition rate may change over time, researchers must determine or validate the actual rate that the bands are deposited.

If climate changes increase the snow deposition rate on the plateau there, the rate of sea level rise from melting glaciers elsewhere would be reduced.

On the other hand the CET and the Greenland's ice core 10Be deposition rate (which is supposed to track past solar activity) are also closely correlated (second graph in link).

But any uniform deposition rate at 0 cm implies 0 yrs.

They then extrapolated to 0 cm using a uniform deposition rate assumption, giving age 1008 yrs.

«Since CO3 — is not directly involved in CaCO3 deposition by corals etc, an effect on the the deposition rate of CaCO3 deposition is neither expected.»

Estimating the natural background atmospheric deposition rate of mercury utilizing ombrotrophic bogs in southern Sweden

In both cases, by my crude calculations comparing sulfate load with deposition rate, I'm still talking about a matter of days to weeks for equilibration — about 6 days in ExTrop and 30 in Trop.

The low deposition rate for the local sources (reduced wet deposition I guess) is a fair point however.

Modelling the local SO2 sources with a relatively low deposition rate would appear to give a decent fit.

Perhaps problems with the deposition rate.

Not exact matches

According to some research, one important factor that controls the deposition of cholesterol is the rate of oxidation of LDL and anti-oxidants can effectively prevent such oxidation.

Using the Great Barrier Reef as their study case, they estimated the evolution of the region over the last 14,000 years and showed that (1) high sediment loads from catchments erosion prevented coral growth during the early phase of sea level rise and favoured deep offshore sediment deposition; (2) how the fine balance between climate, sea level, and margin physiography enabled coral reefs to thrive under limited shelf sedimentation rates at 6,000 years before present; and, (3) how over the last 3,000 years, the decrease of accommodation space led to the lateral extension of coral reefs consistent with available observational data.

The team's setup combines a roll - to - roll approach — a common industrial approach for continuous processing of thin foils — with the common graphene - fabrication technique of chemical vapor deposition, to manufacture high - quality graphene in large quantities and at a high rate.

And they said, we are very concerned with seawater deposition and impacts on the bottom heads, salt's impacts on the bottom heads, and we're very concerned about heat transfer rate on the fuel.»

Schultz says the streaks could prove useful in establishing rates of erosion and dust deposition in areas where the streaks are found.

According to Charlier, the diamonds form at a rate 1000 times faster than observed for carbon vapor deposition.

They found that high rates of carbon accumulation in lake sediments were stimulated by several factors, including «thermokarst erosion and deposition of terrestrial organic matter, -LSB-...] nutrient release from thawing permafrost that stimulated lake productivity, and by slow decomposition in cold, anoxic lake bottoms.»

[10] Earlier still, a 200 - million year period of intermittent, widespread glaciation extending close to the equator (Snowball Earth) appears to have been ended suddenly, about 550 million years ago, by a colossal volcanic outgassing which raised the CO2 concentration of the atmosphere abruptly to 12 percent, about 350 times modern levels, causing extreme greenhouse conditions and carbonate deposition as limestone at the rate of about 1 mm per day.

In fact, doing excessive cardio is actually working against your results because you are stimulating excessive cortisol production in your body and breaking down lean muscle tissue... all of which leads to the slowing down of your metabolic rate over time and deposition of even more belly fat on top of what you already have.

Effect of zinc supplementation on the dietary intake, rate of weight gain, and energy cost of tissue deposition in children recovering from severe malnutrition

CO2 snow deposition, at rates of approximately 40 cm per day (falling to the bottom of a 100 m x 100 116 m x 100 m chamber), is excavated into the insulated dry ice landfill (D).

In other words ignoring the non-linear GHG efficacy curve of CO2 and the rate of anthropogenic deposition is just another attempt to hide a couple of inconvenient declines.

From the atmosphere, it generally falls to the surface in atmospheric deposition, generating a series of effects — corrosion of buildings, bridges and other human - made structures, acidification of soils and water bodies, and inadvertent fertilization of trees and grasslands, creating unnatural growth rates, nutrient imbalances and decreasing or altering biodiversity.

The job of the radiation module is to calculate the solar heating rate profiles and the thermal cooling rate profiles, including the energy deposition at the ground surface, as well as the energy balance at the top of the atmosphere for the specified climate variable distribution at each grid box.

Temporarily increased rates of lime deposition by fertilization are completely offset over the long - term by decreased CO2 uptake into the ocean and lower rates of precipitation of limestone by coral reefs, etc..

The fossil record indicates that the past 100 years has seen species extinctions at 100 — 1,000 times the background rate (Millennium Ecosystem Assessment 2005), and among five drivers of global biodiversity loss between now and 2100 (climate change, land use change, atmospheric CO2 increases, nitrogen deposition, and species introductions), land use change — not climate change — is predicted to be the most important (Sala et al. 2000).

Increased uptake in the past decade may be a consequence of a reduced rate of deforestation [217] and fertilization of the biosphere by atmospheric CO2 and nitrogen deposition [187].

The problem for the oceans is that the pH compensating mechanism involves slowing the rate of limestone deposition, which takes thousands of years, and we're adding CO2 over hundreds of years, so the «buffer» is overwhelmed.

We know from the diffusion rate of CO2 in ice, which I noted above, that smearing is possible across (+ / --RRB- 8.4 meters of core, which approximately averages 840 years of CO2 deposition.

Whereas these effects on open - ocean pH are calculated to be minor, they can be higher, at rates of 0.02 — 0.12 × 10 − 3 pH units per year (< 10 % of OA by anthropogenic CO2), in coastal ecosystems (Doney et al. 2007), where atmospheric deposition is intense and the waters can be more weakly buffered.

However, deposition patterns differ among Arctic lakes, particularly within the last few decades where either increases or decreases in Hg accumulation rates have been reported in Alaska (52) as well as in Greenland (11).

I wonder if the rate of sediment deposition will actually increase as glacial melting increases in the Himalayas, before slowing again as the major rivers of South Asia become fed more by rain alone than by seasonal glacial melting.

By 2060 Bangladesh could be up to 1000 sq. kilometers larger at this rate of deposition.

[65] Earlier still, a 200 - million year period of intermittent, widespread glaciation extending close to the equator (Snowball Earth) appears to have been ended suddenly, about 550 Ma, by a colossal volcanic outgassing that raised the CO2 concentration of the atmosphere abruptly to 12 %, about 350 times modern levels, causing extreme greenhouse conditions and carbonate deposition as limestone at the rate of about 1 mm per day.

With state - of - the - art technology and first - rate service, Diamond provides effective solutions and support each step of the way, from depositions to trials.

As the leader in deposition and litigation support solutions, we are committed to retaining first - rate professionals at every level of the company.

He and a colleague are doing a study to determine what are typical rates of speech in courts or depositions, so that court reporter tests can be useful.