Sentences with phrase «decades of observations at»

Not exact matches

Given that this was the decade that saw two whole parliamentary sessions without a single vote being cast against their whip by a member of the governing party, this observation was at least more accurate then than modern - day attempts to paint politicians as a bunch of spineless sheep.

Jaroslav Flegr, a professor of biology at Charles University in Prague in the Czech Republic who was not involved in the study, said this was a confirmation of observations made by his research team over the last two decades.

Truly comprehending the world's waters and how they react to climate change requires observations spanning decades, says Uwe Send, a physical oceanographer at the Scripps Institution of Oceanography in La Jolla, Calif..

This new research confirmed those observations, with average warming rates of 1.3 degrees Fahrenheit (0.72 degrees Celsius) per decade at high latitudes.

Dr. Arcadio Rodaniche, one of the paper's co-authors, was the first to record the species» striking appearance and describe its uncharacteristic behaviors both in the field and in captivity during the 1970s, but his unprecedented observations were so unique that they were largely ignored at the time, leaving the octopus's fascinating behavior unstudied for decades.

Detecting a solar system like our own (in which the most massive planet, Jupiter, takes a full 12 years to complete one orbit) would require at least another decade or two of high - precision Doppler observations.

AT (N) nomenclature represents a conceptual framework that is based on the past decade's observations of relationships between markers of amyloid, tau, and neurodegeneration.

This is in line with field observations of hybrid birds made by study co-authors Peter and Rosemary Grant, evolutionary biologists at Princeton University in New Jersey who have worked in the Galapagos for decades.

The space agency is launching these missions at a time when decades of observations from the ground, air, and space have revealed signs of change in Earth's ice sheets, sea ice, glaciers, snow cover and permafrost.

Despite these observational challenges, astronomers have successfully spotted many thousands of such microlensing events as part of various comprehensive deep - sky surveys during the last couple decades which have monitored hundreds of millions of stars for many years at a time, like the MACHO Collaboration project, the Microlensing Observations in Astrophysics, or MOA, and the Optical Gravitational Lensing Experiment, or OGLE.

«The study is unique in taking observations by different instruments and different field campaigns separated by a decade to document that changes in the region include the flow connecting these two outlets,» Charles Jackson, a geophysicist at the University of Texas who wasn't part of the study, told Earther.

Astronomer Vera Cooper Rubin found over decades of radio observations that the rotational velocity of clouds of ionized hydrogen (HII regions) in spiral galaxies like the Milky Way was not decreasing at increasing distance from their galactic cores, like the velocity of the planets around the Sun.

The sway between a structured, observational approach to image making and the free - form, improvisational gestures of his interventions is very much at the crux of Divola's practice and can be traced from his earliest foundational work of the 1970's to more recent bodies of work such as Dogs Chasing My Car in the Desert (1996 - 2001), where Divola documents the dogs that chased his car while working in the Southern California desert; As Far as I Could Get (1996/1997), where Divola sets up a camera and runs away from it during a given exposure; and Dark Star (2008), where his melding of intervention and observation continues to be in the foreground in large - format, color work made during the last decade.»

In some cases, reviewers and / or editors supportive of mainstream views totally block important papers from being published; McKitrick, McIntyre and Herman had to completely rewrite their recent paper — showing that high tropical tropospheric temperature trends for the last three decades produced by climate models are inconsistent with observations — as a study of applying statistical methods developed in econometrics, and submit it to a journal with a more open - minded editor, in order to get it published at all.

«Although our technique has been very good at reproducing the Atlantic overturning circulation so far, more than a decade of observations would be required for a thorough validation.

Observations show a general increase in permafrost temperatures during the last several decades in Alaska, northwest Canada, Siberia and Northern Europe, with a significant acceleration in the warming of permafrost at many Arctic coastal locations during the last five years.

Observations of shrub expansion in tundra, increased tree growth at the tundra - forest transition, and tree mortality at the southern extent of the boreal forest in recent decades are consistent with model projections.

When that trend reverses, as past observations suggest it will (likely within the next decade, according to Trenberth & Fasullo [2013]-RRB- we'll experience an acceleration of warming at the Earth's surface.

It's very clear from the following graph that temperatures are lower in recent months (in fact, lower than at any point) than they were a decade ago, according to any of the four main observations.

These facts were enough for an NAS panel, including Christy, to publish a report Reconciling Observations of Global Temperature Change which concluded that «Despite differences in temperature data, strong evidence exists to show that the warming of the Earth's surface is undoubtedly real, and surface temperatures in the past two decades have risen at a rate substantially greater than average for the past 100 years»

Pingback: Another Peer - Reviewed Paper Predicting the Cessation of Global Warming Will Last At Least Another Decade Bob Tisdale — Climate Observations

So I asked Mr. Knappenberger to test the models» agreement with long - term observations using a new «third» scenario in which internal variability once again «enhances» the «externally forced trend» and global warming resumes at the 1984 - 1998 rate of 0.265 ºC / decade.

There have been many studies aiming to test this hypothesis since AR4, 50 which fall in two categories: i) studies that seek to establish a causal relationship between cosmic rays and 51 aerosols / clouds by looking at correlations between the two quantities on timescales of days to decades, and 52 ii) studies that test through observations or modelling one of the physical mechanisms that have been put 53 forward.

There have been many studies aiming to test this hypothesis since AR4, which fall in two categories: i) studies that seek to establish a causal relationship between cosmic rays and aerosols / clouds by looking at correlations between the two quantities on timescales of days to decades, and studies that test through observations or modeling one of the physical mechanisms that have been put forward.

The relationships between the NAO and deep water production are discussed by R. Dickson, «Observations of DecCen climate variability in convection and water mass formation in the northern hemisphere,» in the CLIVAR Villefranche workshop summary at http://www.dkrz.de/clivar/villesum.html. More generally, see the Climate Research Committee, National Research Council, Natural Climate Variability on Decade - to - Century Time Scales (National Academy Press 1995).

For the first six decades to 1720 the figures are printed in italics as an indication that they must be considered less reliable, based as they are on extrapolation from the results of readings of highly imperfect instruments in uncertain exposures at a considerable distance, generally in south - east England; or on estimates based on interpretations of daily observations of wind and weather.

So using the criteria of «noticeable» climate change that would affect humanity and nature, that can be reasonably validated against the benchmark of the 1920 - 40 period by such records as instrumental and crop, or observations, and as being of a duration of at least one decade, we have some 15 decadal episodes of «noticeable» climate change, (up and down) between1538 and 2012.

Dessler made a fascinating observation of cloud feedbacks in some of the models he looked at in - A determination of the cloud feedback from climate variations over the past decade, A.E. Dessler, Science 330, 1523 (2010); DOI 10.1126 / science.1192546 He writes, The sign of the short - wave feedback shows more variation among models; it is positive in five of the models and negative in three.

Rignot's study looked at more than four decades of observations of the Amundsen Sea sector of West Antarctica, which Rignot said has «passed the point of no return.»

Little more could be said without further decades of observations — and a theory to explain why there should be any connection at all between the sunspot cycle and weather.

My own goal is to have readers (and maybe even but not necessarily Graeme) understand the invalidity of his argument asserting that (essentially) one sea level time series observation at one coastal location that (allegedly) doesn't show much change in several decades does not imply that the sea level changes have been the same at all other coastal locations (give or take 100 mm)- which implies that any observed variations exceeding this level in sea level rise at different locations around the world are «not real» and hence sea level rise due to global warming isn't anything to worry about.

In a statement to the British House of Lords, Lord Hunt of King's Heath said «Observations collated at the Met Office Hadley Centre and the University of East Anglia Climate Research Unit indicate that the rate of increase in global average surface temperature between 1975 and 1998 was similar to the rates of increase observed between 1860 and 1880 and between 1910 and 1940 (approximately 0.16 C ° per decade).»