Sentences with phrase «years of the temperature record»

«Looking at 1,000 years of temperature records, researchers found that natural variability in surface temperatures over the course of just a decade can account for increases and dips in warming rates.»

The comparison spanned years 1880 (the first year of the temperature records) through 1997 (the last year of the tree - ring data).

As far as the original post goes, if you simply look at calculated forcings from known sources (Volcanic Aerosol, Solar Irradience and Greenhouse gases) you can replicate the last 150 years of temperature records surprisingly well; take any of these factors out and you can not.

Huffingtonpost: Time has proven that even 22 years ago climate scientists understood the dynamics behind global warming well enough to accurately predict warming, says an analysis that compares predictions in 1990 with 20 years of temperature records.

I used the mean of the first 30 years of the temperature record.

Even 250 years of temperature records, and quite sparse records in early periods, is only as long as a gnat's eyelash on a climatic scale.

(80 is chosen because we have about 100 years of temperature record, and we have to at least test a prediction on 1966 - 1988 in order to test a model which will be used to predict 1988 to 2010).

Not exact matches

In the U.S., temperatures continue to set new records as the fire season in many parts of the country has now stretched to as many as 300 days of the year.

During the first third of the year, from January through April, the average temperature for the contiguous United States was 4 degrees Fahrenheit above the 20th - century average, making this period the second warmest on record, according to the National Oceanic and Atmospheric Administration.

It was a «roller - coaster ride» of a growing year that ended with a long, likely below - average - sized harvest punctuated by record September temperatures and October wildfires...

El Niño Now Among Strongest in Modern History; Unusually Warm and Unsettled Conditions Persist in California: Not only is 2015 California's warmest year on record to date (beating the previous record set all the way back in 2014), but the details of the persistently elevated temperatures have been particularly oppressive...

The amount of carbon dioxide in the Earth's atmosphere grew at a record rate in 2016 to a level not seen for millions of years, potentially fueling a 20 - meter (65 - foot) rise in sea levels and adding 3 degrees to temperatures, the United Nations said.

«We only have about 150 years of direct measurements of temperature, so if, for example, we want to estimate how great of variations that can be expected over 100 years, we look at the temperature record for that period, but it can not tell us what we can expect for the temperature record over 1000 years.

For a start, observational records are now roughly five years longer, and the global temperature increase over this period has been largely consistent with IPCC projections of greenhouse gas — driven warming made in previous reports dating back to 1990.

Manley's Central England record coincides well with the year - to - year rises and falls of temperature proxies: tree rings and written records of when winter ice spread over rivers or harbors and trees sprouted leaves.

Dust found in the ice gives a record of what was in the air thousands of years ago, whether from volcanic eruptions or human activity, and the isotopic composition of the hydrogen and oxygen molecules in the snow give a record of the temperature of the earth at the time.

This year, the waters in Lake Superior are on track to reach — and potentially exceed — the lake's record - high temperature of 68 degrees Fahrenheit

Boersma and Rebstock looked at the cause of every recorded chick mortality in an Argentinian colony of Magellanic penguins, over a nearly 30 - year period, and compared these with changes in temperature and precipitation over the same time.

The scientists, led by Eric Oliver of Dalhousie University in Canada, investigated long - term heat wave trends using a combination of satellite data collected since the 1980s and direct ocean temperature measurements collected throughout the 21st century to construct a nearly 100 - year record of marine heat wave frequency and duration around the world.

So Javier Martin - Torres of the Luleå University of Technology in Kiruna, Sweden, and colleagues have tracked the weather conditions on Mars throughout Curiosity's first Martian year, recording humidity, air and ground temperatures with its Rover Environmental Monitoring Station (REMS).

The team used records of oxygen isotope ratios (which provide a record of ancient water temperature) from microscopic plankton fossils recovered from the Mediterranean Sea, spanning the last 5.3 million years.

The temperature record of the past 1000 years describes the reconstruction of temperature for the last 1000 years on the Northern Hemisphere.

The team studied the records of temperature, cool - season precipitation and stream flow for the years 1906 to 2012.

The units recorded the location and temperature of the animals every 15 minutes for two years.

The researchers analyzed temperature records for the years 1881 to 2013 from HadCRUT4, a widely used data set for land and sea locations compiled by the University of East Anglia and the U.K. Met Office.

The statewide average temperature for the first six months of 2014 was 1.1 degree F warmer than it has been for the past 120 years of records

The record exemplifies a temperature pattern that has held across the country for much of the year, with above - average temperatures in the West and below average in the East.

To create their new temperature record, which spans 3.5 million years at the end of the Cretaceous and the start of the Paleogene Period, the researchers analyzed the isotopic composition of 29 remarkably well - preserved shells of clam - like bivalves collected on Antarctica's Seymour Island.

The tags, developed by CSIRO and Zelcon Technic, a small electronics company in Hobart, record measurements of temperature, depth and location for five years and store them for 20.

Scientists expect it to wind down by early 2017, as global temperatures recede after three successive years of record heat.

«Ice cores only tell you about temperatures in Antarctica,» Shakun notes of previous studies that relied exclusively on an ice core from Antarctica that records atmospheric conditions over the last 800,000 years.

The researchers found that due to warm spring temperatures on Kodiak, the berries were developing fruit weeks earlier, at the same time as the peak of the salmon migration; 2014 was one of the warmest years on the island since record - keeping began 60 years ago.

Shakun and his colleagues started by creating the first global set of temperature proxies — a set of 80 different records from around the world that recorded temperatures from roughly 20,000 years ago to 10,000 years ago.

Subtracting known influences and comparing their results with satellite records of Earth's day length, they found that elevated temperatures in the pool during El Niño years correlated with days that were a few microseconds longer than in other years.

If 2014 maintains this temperature departure from average for the remainder of the year, it will be the warmest year on record.

We present a synthesis of decadally resolved proxy temperature records from poleward of 60 ° N covering the past 2000 years, which indicates that a pervasive cooling in progress 2000 years ago continued through the Middle Ages and into the Little Ice Age.

After six months of preparation, Bartholomaus was ready to set loose the instruments that will record temperature and current changes in the fjord for a full year.

Minor winter storms the previous year contributed to less snowfall, drier soil, and recorded temperatures of more than 30 degrees Fahrenheit higher in some states than in summer 2011.

«The new record high calendar year temperature averaged across Australia is remarkable because it occurred not in an El Niño year, but a normal year,» David Karoly, a climate scientist from the School of Earth Sciences, University of Melbourne, said in an emailed statement.

It is part of a trend that saw Sydney's temperature climb to over 47 °C earlier this month — the highest recorded in the city for 79 years — and could see both it and Melbourne experiencing mega ‑ heatwaves with highs of 50 °C by 2040.

These elevated temperatures have led to a record third year of a global coral bleaching event.

The first half of 2016 has blown away temperature records, capped off by a record hot June, once again bumping up the odds that 2016 will be the hottest year on record globally, according to data released Tuesday.

According to NOAA, the global average ocean temperature for the first half of the year is 1.42 °F (0.79 °C) above the 20th century average, the largest such departure in 137 years of records.

Temperatures last year broke a 2015 record by almost 0.2 C (0.36 F), Copernicus said, boosted by a build - up of greenhouse gases in the atmosphere and by a natural El Nino weather event in the Pacific Ocean, which releases heat to the atmosphere.

The Arctic has been one of the areas of the world that has seen sky - high temperatures this year, which have led to record - low sea ice levels.

As of 30 November, worldwide surface temperatures mark 2000 as the fifth - warmest year since 1880, while the United States was headed for an all - time record until a frigid November set in.

Last year was the third hottest on record in the United States, with an average temperature of 54.6 degrees Fahrenheit — 2.6 F above average.

The succession of temperature records has also been accompanied by other notable climate records, including thebiggest ever year - to - year jump in carbon dioxide levels at the Mauna Loa observatory in Hawaii, as well as a record low winter Arctic sea ice peak.

«Last year's temperatures had an assist from El Niño, but it is the cumulative effect of the long - term trend that has resulted in the record warming that we are seeing.»

So the report notes that the current «pause» in new global average temperature records since 1998 — a year that saw the second strongest El Nino on record and shattered warming records — does not reflect the long - term trend and may be explained by the oceans absorbing the majority of the extra heat trapped by greenhouse gases as well as the cooling contributions of volcanic eruptions.