Sentences with phrase «periods of the temperature record»

To compare temperatures during the earliest and latest periods of the temperature record, minima and maxima at Perth Botanic Gardens from 1876 to 1899 can be compared against Perth Airport from 1981 to 2010.

Can you explain why the proper comparison is with the very first and very last periods of the temperature record?

Not exact matches

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 has been the practice for a woman trying to conceive to keep careful records of her monthly cycles, especially by keeping a log of her basal body temperature — the temperature of a 24 hour period where her temperature is lowest.

«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.

The June temperatures meant that the first half of 2012 was one of the warmest on record, and contributed to the warmest 12 - month period in the United States since records began in 1895.

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.

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.

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.

This way, scientists studied three variables (maximum temperature, minimum temperature and precipitation) in the Pyrenees in the period 1910 - 2013; «this is one of the most extensive climate records to date for this study area,» stresses Sigró.

After giving the dunnarts a month to get used to their diet, the team continued the diets for a further 19 days and recorded the length and times of the animals» torpor over this period, using nests installed with temperature sensors and video recorders.

The scientists compared the results to summertime temperatures recorded between 1920 and 2014 as well as to 15 sets of simulated summertime temperatures for the same historic period.

The oxygen and carbon isotopes present in the remains provided them with records of temperature and humidity levels during the period.

The new method has already been used to examine climatic records of sea surface temperature at 65,000 points around the world over a period of 28 years and provided scientists with a clear understanding of when and where temperature fluctuations occur.

A scientist from the nearby Oak Ridge National Laboratory (ORNL) set up thermal cameras to record the temperature of the graves over 24 - hour periods while the bodies decomposed.

The records showed that precipitation and temperature patterns had hardly fluctuated during the period, meaning that the amount of water flowing into the lake from nearby streams is likely the same today as it was in 1847.

The June 2013 globally - averaged temperature across ocean surfaces was the 10th highest in the 134 - year period of record, at 0.48 °C (0.86 °F) above the 20th century average.

One station in Antarctica also reported a record cold August temperature for its 30 - year period of record.

The average global sea surface temperature tied with 2010 as the second highest for January — August in the 135 - year period of record, behind 1998, while the average land surface temperature was the fifth highest.

According to the Land & Ocean Temperature Percentile map above, a region of coastal west Africa, part of Greece, northwestern Iran, much of the southern Philippines, and central and south central Australia were record warm for the period.

Vast numbers of corals died suddenly during a record - breaking El Niño that raised sea - surface temperature 1 °C over a 3 - month period.

``... In particular, there was a period in the late - 1980s and early - 1990s when retreat slowed down along most of the coast, and we don't see any cause for this in the temperature records — so there may be some other factors at work, perhaps ocean temperature.»

Following its warmest year on record in 2013 and third warmest in 2014, 2015 remained warm in Australia, with the country experiencing its fifth highest nationally - averaged annual temperature in the 106 - year period of record, with a mean temperature 0.83 °C (1.49 °F) higher than the 1961 — 1990 average, according to the Bureau of Meteorology.

The State of the Climate November 2015 report noted that in order for 2015 to not become the warmest year in the 136 - year period of record, the December global temperature would have to be at least 0.81 °C (1.46 °F) below the 20th century average — or 0.24 °C (0.43 °F) colder than the current record low December temperature of 1916.

study published June 25 by the Proceedings of the National Academy of Sciences, the Greenland ice core drifts notably from other records of Northern Hemisphere temperatures during the Younger Dryas, a period beginning nearly 13,000 years ago of cooling so abrupt it's believed to be unmatched since.

Unless low - level cloud albedo substantially decreased during this time period, the reduced solar absorption caused by the reported enhancement of cloud cover would have resulted in cooling of the climate system that is inconsistent with the observed temperature record.»

Some studies have attempted to estimate the statistical relationship between temperature and global sea level seen in the period for which tide gauge records exist (the last 2 - 3 centuries) and then, using geological reconstructions of past temperature changes, extrapolate backward («hindcast») past sea - level changes.

The temperature departure from average for November is also the second highest among all months in the 136 - year period of record.

The Northern Hemisphere and Southern Hemisphere each had their record highest December land temperatures in the 136 - year period of record.

If the temperature record does plainly show a level line of global mean air temperature for the period in question it apparently won't be «seen» by those who are dubious about my remarks.

Christy was in fact included; the ensuing period must have been uncomfortable for him, as it included a major correction to his UAH troposhere temperature record, and the ascendant credibility of the competing tropospheric analysis from RSS.

Temperature and precipitation data were gathered for each market's period of record during meteorological summer.

Zooming in on the period after 1970, one sees a record of largely unabated warming, with temperatures increasing steadily accompanied by some short - term variability driven by El Niño and La Niña events, and also by major volcanic eruptions like Pinatubo in 1992.

The zircons record this period in the form of a narrow, 2 - micron - thick zone that most likely formed during a brief exposure to very high temperature.

«Those eruptions happened relatively early in our study period, which pushed down temperatures in the first part of the dataset, which caused the overall record to show an exaggerated warming trend,» Christy said.

The above diagram helps show that if a station were removed from the record or did not report data for some period of time, the average anomaly would not change significantly, whereas the overall average temperature could change significantly, depending on which station dropped out of the record.

Despite a period of record low temperatures this winter, it wasn't long enough to decrease tick populations.

Now I think that it is quite plausible that the temperature record is having a bit of a lazy period.

In the video clip Malcolm Roberts is saying that there is a period at the end of the 1600s / beginning of the 1700s in the CET record when there was a temperatures rise greater and faster than any rise in recent decades.

More than 95 % of the 5 yr running mean of the surface temperature change since 1850 can be replicated by an integration of the sunspot data (as a proxy for ocean heat content), departing from the average value over the period of the sunspot record (~ 40SSN), plus the superimposition of a ~ 60 yr sinusoid representing the observed oceanic oscillations.

(C) Mean of all records transformed to summer temperature anomaly relative to the 1961 — 1990 reference period, with first - order linear trend for all records through 1900 (green line), the 400 - year - long Arctic - wide temperature index of Overpeck et al. (2)(blue curve; 10 - year means), and the 10 - year - mean Arctic temperature through 2008 (red line).

# 46 ZH I am merely pointing out that your commentary on the temperature record points out that 2010 is not significantly warmer and is not an unamgiguous new record in the last decade, whereas the Foster and Rahmstorf while admitting their analysis shows «no sign of a change in the warming rate during the period of common coverage»

As luck would have it, the initial couple of years of data from OCO - 2 documented a period with the fastest rate of CO2 increase ever measured, more than 3 ppm per year (Jacobson et al, 2016; Wang et al, 2017) during a huge El Niño event that also saw global temperatures spike to record levels.

-- The combined global land and ocean average surface temperature for the December — February period was 0.41 °C (0.74 °F) above the 20th century average of 12.1 °C (53.8 °F), making it the 17th warmest such period on record and the coolest December — February since 2008.

``... In particular, there was a period in the late - 1980s and early - 1990s when retreat slowed down along most of the coast, and we don't see any cause for this in the temperature records — so there may be some other factors at work, perhaps ocean temperature.»

The paleoclimate record (8.2 kyr, and earlier «large lake collapses») shows a dramatic drop in surface temperatures for a substantial period of time when the ocean circulation shuts off or changes, but is that actually what would be expected under these warming conditions?

In this case, they have the long records from the weather stations, and the relationship of the wider temperatures to those stations over the satellite period, and this is what you get when you put that together.

In the case of this summer, to make it familiar, the NE North American Coast and most of Canada is cooler by extensive periods of cloud coverage, cooling caused by this region clashes with the US South extreme heat, given less bouts of clouds up North, the North American warming record would have been amazingly strong, but permanent cloud episodes over one region or another travel, never last forever, as such not causing a permanent shift in the temperature record (unless the clouds cover or not wide swats of the Polar regions).

levels matching those temperature highs recorded for the last historical period representative of that gas mixture.