Sentences with phrase «recorded signals change»

Not exact matches

The euro fell to a two - week low versus the dollar, for its biggest weekly drop in two months, as investors trimmed record high bets before a European Central Bank meeting next week where policymakers are largely expected to signal no change in policy.

Above the seismic record is a spectrogram that shows how frequency of the signals changes over time.

It measures blood flow to the brain by sending light signals from sensors mounted in a 3 - pound headcap, then producing images of blood oxygen changes — representing brain activity — by recording the absorption of light at different colors.

The indications of climate change are all around us today but now researchers have revealed for the first time when and where the first clear signs of global warming appeared in the temperature record and where those signals are likely to be clearly seen in extreme rainfall events in the near future.

Closer to the poles the emergence of climate change in the temperature record appeared later but by the period 1980 - 2000 the temperature record in most regions of the world were showing clear global warming signals.

An ecologist records nature's color signals to understand the feedback between plants and a changing climate.

Neural signal patterns can change when the electrodes move even slightly; a neuron whose signal was not previously detected can end up joining the recorded ensemble while another might become excluded.

The result is a mixture of background sequences that record time and signal sequences that change depending on the cell's environment.

But there are also many spurious signals in the data record which scientists must beware of treating as if they represented climate changes in the real world.»

Babies who had heard the recordings showed the neural signal for recognizing vowel and pitch changes in the pseudoword, and the signal was strongest for the infants whose mothers played the recording most often.

At the same time, she measured electrical signals in neighboring neurons using microelectrodes that can record small voltage changes across a neuron's membrane.

To provide records for the global background signal of greenhouse gases and climate change, we will investigate areas largely unaffected by methane and use them as control areas.

Flood frequency in the River Ammer discharge record is significantly correlated to changes in solar activity when the flood record lags the solar signal by 2 — 3 years (2 - year lag: r = − 0.375, p = 0.01; 3 - year lag: r = − 0.371, p = 0.03).

Though ocean temperature represents a clear signal of climate change, one challenge for researchers is that the record only goes back so far.

And with 2017 likely going down as one of the warmest years on record worldwide, this year's climate change signal was amplified at the Earth's poles.

But it's being layered on top of a long - term climate change signal, which has seen the world get hotter and hotter since record keeping began in the late 1800s.

The GDPR will, from 25 May 2018, replace the Data Protection Act (DPA), signalling a change in the way schools manage and look after a wide variety of data and information: from paper in filing cabinets, through to the keeping of student and staff records to monitoring day - to - day activities and security.

A tropical SST link would explain why the signal is strongest with a 10 to 20 year lag of the long - term changes (Waple et al, 2001), but the noise in the NAO record could mean that you only see significant changes after long term averaging.

There is extensive discussion of the high - profile studies by Emanuel, Webster, Curry and coworkers (see e.g. here and here) which, eerily coincident with the record - setting 2005 season, first suggested a detectable climate change signal in hurricane behavior.

«One of the most significant signals in the thermometer - observed temperature record since 1900 is the decrease in the diurnal temperature range over land, largely due to warming of the minimum temperatures... Climate models have in general not replicated the change in diurnal temperature range well.

By overemphasizing the trivially short instrumental record, and greatly underemphasizing the varied changes that exist in geological records... the IPCC signals its failure to comprehend that climate change is as much a geological phenomenon as it is a meteorological one.

Scientists say the record drought is due in part to the expansion of the Hadley Cell — the atmospheric regions on both sides of the equator that circulates warm tropical air poleward — which is known climate change signal.

I would not dispute 100 - 300 year oscillations as a possibility, but my reading of the climate records reveals no evidence for a significant role for such oscillations — or at least, no role substantial enough on a global scale to have created a discernible signal outside of changes occasioned by solar variations, volcanism, and other known entities (changes on a regional scale are a very different matter and may have involved such oscillations).

Changes in vegetation are a potent source of error signals, and have exerted major climate impacts over the paleoclimatologic record.

It would have to be shown that the recent temperature record can be statistically significantly distinguished from the statistically significant warming signal, which can be detected when performing an analysis that uses data over multiple decades, from the mid-1970ies to present, or from the mid-1970ies up to the time, when the alleged change in the behavior of the global atmospheric temperature is supposed to have occurred.

«Here we present an analysis based on sea - level data from the altimetry record of the past ~ 20 years that separates interannual natural variability in sea level from the longer - term change probably related to anthropogenic global warming... Our results confirm the need for quantifying and further removing from the climate records the short - term natural climate variability if one wants to extract the global warming signal.»

While the climate change signal is much clearer in the northern latitudes - where longer - term records show a relatively steady retreat of Arctic sea ice - evidence of global warming's impact around Antarctica is also showing up in the observations.

Dr Santer's research has been invaluable in helping to identify a human - induced «signal» in observed records of climate change.

Because sea level behavior is such an important signal for tracking climate change, skeptics seize on the sea level record in an effort to cast doubt on this evidence.

«They find that tropospheric temperature records must be at least 17 years long to discriminate between internal climate noise and the signal of human - caused changes in the chemical composition of the atmosphere.

The indications of climate change are all around us today but now researchers have revealed for the first time when and where the first clear signs of global warming appeared in the temperature record and where those signals...

Key is to see whether or not the natural influences, UHI effects and changes / «modifications» in temp records are really so clear identificable / recognized that a tiny signal (like 2/3 of a degree over a century) can be identified clearly as caused by humans.

In summary, despite various caveats in each individual result, time - series studies suggest that natural signals and internal variability alone are unlikely to explain the instrumental record, and that an anthropogenic component is required to explain changes in the most recent four or five decades.

This is because imperfections in climate models and observations are still obscurring the climate change signal in some places, even despite technical advances and a satellite record that spans over more than 30 years.

In 2015 the company posted a record operating profits, signalling Ennis remains at the legal helm of a steady ship, despite this change of ownership.

This shift could be signaling a change in that positioning as both XBT search volumes and the price hit record highs last week.