Sentences with phrase «measure than oceans»

Not exact matches

Thanks to Swarm's precise measurements along with those from Champ — a mission that ended in 2010 after measuring Earth's gravity and magnetic fields for more than 10 years — scientists have not only been able to find the magnetic field generated by ocean tides but, remarkably, they have used this new information to image the electrical nature of Earth's upper mantle 250 km below the ocean floor.

An analysis of CO2 preserved in ice cores shows that for more than 600,000 years the ocean had a pH of approximately 8.2 (pH is the acidity of a solution measured on a 14 - point scale, with a pH below 7 being acidic and above 7, basic).

By measuring the abundance of an isotope of the noble gas argon in the rock or its crystals, Gazel and his colleague Michael Kunk of the U.S. Geological Survey found that the magma was much younger than the last known volcanic event on the East Coast — which occurred when the supercontinent of Pangaea slowly pulled apart into North America, Africa and South America some 200 million years ago, forming the Atlantic Ocean in the process.

Deploying new sensors that drift with sometimes strong currents (allowing better measurement of marine snow than sensors placed on the ocean floor or tethered to the surface), the team sampled the flora and fauna and measured the amount of falling carbon material captured to assess the role of the ocean as a true carbon sink.

«It's not easy to measure or model how much additional meltwater refreezes rather than runs off into the ocean,» he said.

An analysis of sediment from 17 seabed sites — from European estuaries to the Great Barrier Reef in Australia and the deep Atlantic Ocean — found that the bathyal region of the Rockall Trough has more species than any other area so far measured.

MAUNA KEA, HI — A primitive ocean on Mars once held more water than Earth's Arctic Ocean, according to NASA scientists who measured signatures of water in the planet's atmosphere using the most powerful telescopes on Earth including the W. M. Keck Observatory in Haocean on Mars once held more water than Earth's Arctic Ocean, according to NASA scientists who measured signatures of water in the planet's atmosphere using the most powerful telescopes on Earth including the W. M. Keck Observatory in HaOcean, according to NASA scientists who measured signatures of water in the planet's atmosphere using the most powerful telescopes on Earth including the W. M. Keck Observatory in Hawaii.

[Response: The concentration of methane in seawater can be measured, and I think the ocean is very often a source to the atmosphere, rather than a sink.

Exxon budgeted more than $ 1 million over three years for the tanker project to measure how quickly the oceans were taking in CO2.

Scientists have come up with a new way to measure ocean trash — and the numbers are even worse than thought.

In 2010, eight million tons of plastic trash ended up in the ocean from coastal countries — far more than the total that has been measured floating on the surface in the ocean's «garbage patches.»

Nations of the world have launched a cooperative program to measure changing ocean heat content, distributing more than 3000 Argo floats around the world ocean, with each float repeatedly diving to a depth of 2 km and back [66].

This understanding is likely to grow dramatically: since 2000 or so, scientists have deployed some 3,500 autonomous Argo floats, which measure ocean temperature and salinity automatically and continuously — a much more reliable set of records than you can get from ships.

Transforming high schools has been likened to turning an ocean liner around: It involves slow progress seemingly measured in inches, rather than yards or miles.

[Response: The concentration of methane in seawater can be measured, and I think the ocean is very often a source to the atmosphere, rather than a sink.

It obscures the role of post-glacial isostatic rebound elsewhere, as in Hudson's Bay and the Baltic, both in forcing more water into the ocean and in some locales raising land faster than the measured rate of sea level rise [ANDY REVKIN notes: Hi Russell.

The chart shows that starting in the late 1940's, we have been able to measure the heat content of the top 2000 meters of ocean accurately enough so that annual changes in ocean heat content of less than 1e22 joules can be detected and tracked.

Knowing, how much other factors than higher atmospheric CO2 concentration contribute may be difficult, but knowing the influence of higher atmospheric CO2 concentration when also other important quantities related to ocean chemistry are measured is not that difficult.

While such a «missing heat» explanation for a lack of recent warming [i.e., Trenberth's argument that just can not find it yet] is theoretically possible, I find it rather unsatisfying basing an unwavering belief in eventual catastrophic global warming on a deep - ocean mechanism so weak we can't even measure it [i.e., the coldest deep ocean waters are actually warmer than they should be by thousandths of a degree]...

Divers with the Division of Aquatic Resources have measured ocean temperatures of around 85 degrees Fahrenheit (29.4 Celsius), which is higher than the normal range of 72 degrees to 78 degrees (22.2 to 25.5 C), McGilvray said.

Water vapor effect on climate measured New data says southern ocean still absorbing CO2 Ocean acidifying faster than expected Missing radiation signature points to thinning Tibetan glaciers «Cash for Clunkers» to get -LSBocean still absorbing CO2 Ocean acidifying faster than expected Missing radiation signature points to thinning Tibetan glaciers «Cash for Clunkers» to get -LSBOcean acidifying faster than expected Missing radiation signature points to thinning Tibetan glaciers «Cash for Clunkers» to get -LSB-...]

Coby, if the earth is warming as a result of increased periodic solar activity (or some other more complex reason) as suggested by the long term cycles mentioned above measured before man was on earth or industrialized, is it posssible that the observed increases in CO2 in the atmosphere are simply coming from warmer oceans, since liquids can not hold as much gas at a higher temperature than they can at lower temperature?

By that measure, the Gulf of Maine is heating up faster than 99 percent of the world's oceans.

Although ocean temperatures are more difficult to measure than land temperatures, scientists can use several methods to create an extensive ocean record.

This measures the whole ocean except areas near coastlines that satellites can not measure, with an error range that is greater than the trend it is supposedly measuring.

The reason scientists use dozens of satellites, and thousands of measuring stations and ocean floats and balloons and aircraft and other such measuring operations, over many decades, is so they can say more than a post-Ice Age Cro - Magnon man — «We are in a warming period».

SST's are often, but not always, better gauges for how much heat is leaving the ocean on the way to the atmosphere rather than how much remains at depth to be measured as ocean heat content.

The above linked site also has an erudite technical discussion thread concerning this week's report about the state of accuracy of understanding of central Atlantic water currents now reported as 1/3 less mobile than when last measured 50 years ago, with conjecture about possible climate interrelationships if the interpretation is verified; the beginning article is here and the full discussion thread here covering various parts of that ocean.

Add in the fact that the thickness of the ice, which is much harder to measure, is estimated to have fallen by half since 1979, when satellite records began, and there is probably less ice floating on the Arctic Ocean now than at any time since a particularly warm period 8,000 years ago, soon after the last ice age.

To point out just a couple of things: — oceans warming slower (or cooling slower) than lands on long - time trends is absolutely normal, because water is more difficult both to warm or to cool (I mean, we require both a bigger heat flow and more time); at the contrary, I see as a non-sense theory (made by some serrist, but don't know who) that oceans are storing up heat, and that suddenly they will release such heat as a positive feedback: or the water warms than no heat can be considered ad «stored» (we have no phase change inside oceans, so no latent heat) or oceans begin to release heat but in the same time they have to cool (because they are losing heat); so, I don't feel strange that in last years land temperatures for some series (NCDC and GISS) can be heating up while oceans are slightly cooling, but I feel strange that they are heating up so much to reverse global trend from slightly negative / stable to slightly positive; but, in the end, all this is not an evidence that lands» warming is led by UHI (but, this effect, I would not exclude it from having a small part in temperature trends for some regional area, but just small); both because, as writtend, it is normal to have waters warming slower than lands, and because lands» temperatures are often measured in a not so precise way (despite they continue to give us a global uncertainity in TT values which is barely the instrumental's one)-- but, to point out, HadCRU and MSU of last years (I mean always 2002 - 2006) follow much better waters» temperatures trend; — metropolis and larger cities temperature trends actually show an increase in UHI effect, but I think the sites are few, and the covered area is very small worldwide, so the global effect is very poor (but it still can be sensible for regional effects); but I would not run out a small warming trend for airport measurements due mainly to three things: increasing jet planes traffic, enlarging airports (then more buildings and more asphalt — if you follow motor sports, or simply live in a town / city, you will know how easy they get very warmer than air during day, and how much it can slow night - time cooling) and overall having airports nearer to cities (if not becoming an area inside the city after some decade of hurban growth, e.g. Milan - Linate); — I found no point about UHI in towns and villages; you will tell me they are not large cities; but, in comparison with 20-40-60 years ago when they were «countryside», many small towns and villages have become part of larger hurban areas (at least in Europe and Asia) so examining just larger cities would not be enough in my opinion to get a full view of UHI effect (still remembering that it has a small global effect: we can say many matters are due to UHI instead of GW, maybe even that a small part of measured GW is due to UHI, and that GW measurements are not so precise to make us able to make good analisyses and predictions, but not that GW is due to UHI).

The pH range is over one pH unit, so I am more than highly skeptical of anyone claiming to have measured a change of a few hundredths of the natural variability locally, and extrapolating to the «world's oceans.»

Data from NASA's Tropical Rainfall Measuring Mission (TRMM) show that annual mean rainfall is greater over the oceans than over land.

The combination of all these forces — consumption, deforestation, agriculture and food, emissions — underscores more than ever the value of a comprehensive measure like the Ecological Footprint that takes into account all competing demands on the biosphere, including CO2 emissions and the capacity of our forests and oceans to absorb carbon.

Nations of the world have launched a cooperative program to measure changing ocean heat content, distributing more than 3000 Argo floats around the world ocean, with each float repeatedly diving to a depth of 2 km and back [66].

The details of heat flow into the ocean is much harder to measure than surface temperature and the details of it much less well understood.

In part, because it has been well - measured by ships, has a long history of relationship to the SOI which has been carefully measured for more than 150 years, has a long relationship with fish catches and ocean temperaturee off of Peru, has a long relationship with its impact on global temperatures, etc. etc..

A team of scientists gathered data from 175 satellite images that tracked the passage of 17 giant icebergs (measuring more than 18km / 11 miles in length) through the open waters of the ocean surrounding Antarctica.

Unfortunately using global average surface air temperatures as a measure of total warming ignores the fact that most of the heat (more than 93 %) goes into our oceans, which continue to warm without any sign of a pause, as you can see below.

Can't speak for Dr Spencer but my understanding is that most of this would be measured in Ocean terms where the time lags are longer (and heat capacity greater) than those for land.

Sea levels are rising (ask the Mayor of Miami who has spent tax monies to raise road levels), we've had 15 of the hottest years eve measured, more precipitation is coming down in heavy doses (think Houston), we're seeing more floods and drought than ever before (consistent with predictions), the oceans are measuring warmer, lake ice in North America is thawing sooner (where it happens in northern states and Canada), most glaciers are shrinking, early spring snowpacks out west have declined since the 1950's, growing seasons are longer throughout the plains, bird wintering ranges have moved north, leaf and bloom dates recorded by Thoreau in Walden have shifted in that area, insect populations that used to have one egg - larva - adult cycle in the summer now have two, the list goes on and on.

I do think, however, that it is significant (short term, not a firm trend) that CO2, as measured at MLO, has been increasing at a smaller rate than in previous years despite the fact that overall anthropogenic CO2 output is not decreasing and, furthermore, that the short term trend of the absolute increase is also down which indicates a greater rate of absorption of CO2 than in previous years — which to me would indicate an ongoing cooling of the oceans as per the theory that a cooling ocean absorbs more CO2 while a warming ocean releases more CO2.

For example, the warming of the deep oceans over the last 50 years is described in terms of gazillions of joules (which sounds impressive) rather than what was actually measured... hundredths of a degree (not so impressive).

It has been measured as globally averaging 0.3 C cooler than the ocean bulk below it.

Feely's chart, first mentioned, begins in 1988 — which is surprising as instrumental ocean pH data has been measured for more than 100 years since the invention of the glass electrode pH (GEPH) meter.

«'' On both a monthly and annual scale, even the most stable open ocean sites see pH changes many times larger than the annual rate of acidification,» say the authors of the study, adding that because good instruments to measure ocean pH have only recently been deployed, «this variation has been under - appreciated.»

As ocean heat drives climate far more than tropospheric sensible heat, OHC, with its huge effects on atmospheric circulation and the cryosphere is a much better measure of climate sensitivity.

The good news is that such air capture could be less expensive and invasive than, for instance, such measures, mentioned above, as «seeding the oceans with iron to spur plankton blooms» (which strikes me as a global ecological disaster waiting to happen if a mutation occurs or terrorists do a genetic hack.)

Airborne Researchers Measure Greenland's Ice (Reporter package) View Animation Greenland's coastal ice is disappearing fast enough that at its current rate of decline it will contribute to a rise in the world's oceans of a little less than a centimeter in the space of a single human lifetime.

Thus in terms of impacts the problem is surface warming — which is described much better by actually measuring surface temperatures rather than total ocean heat content.

And again, scientists have directly measured that the ocean is absorbing more carbon dioxide than it is releasing, measurable as a slightly reduction the the pH of the ocean, as shown below: