Not exact matches
«There has been an
average of one additional tropical cyclone for each 0.1 - degree Celsius increase in
sea surface temperature and one hurricane for each 0.2 - degree Celsius rise,» they write in Philosophical Transactions
of the Royal Society A.
Ocean Only: The August global
sea surface temperature was 1.17 °F (0.65 °C) above the 20th century
average of 61.4 °F (16.4 °C), the highest on record for August.
Ocean Only: The June - August global
sea surface temperature was 1.13 °F (0.63 °C), above the 20th century
average of 61.5 °F (16.4 °C), the highest for June - August on record.
Of course, while short - term changes in sea level can be predicted fairly accurately based on the motions of the moon and sun, it is a lot harder predicting the ups and downs of the average global surface temperature — there is a lot of noise, or natural variation, in the syste
Of course, while short - term changes in
sea level can be predicted fairly accurately based on the motions
of the moon and sun, it is a lot harder predicting the ups and downs of the average global surface temperature — there is a lot of noise, or natural variation, in the syste
of the moon and sun, it is a lot harder predicting the ups and downs
of the average global surface temperature — there is a lot of noise, or natural variation, in the syste
of the
average global
surface temperature — there is a lot
of noise, or natural variation, in the syste
of noise, or natural variation, in the system.
The team analyzed an index
of sea surface temperatures from the Bering Sea and found that in years with higher than average Arctic temperatures, changes in atmospheric circulation resulted in the aforementioned anomalous climates throughout North Ameri
sea surface temperatures from the Bering
Sea and found that in years with higher than average Arctic temperatures, changes in atmospheric circulation resulted in the aforementioned anomalous climates throughout North Ameri
Sea and found that in years with higher than
average Arctic
temperatures, changes in atmospheric circulation resulted in the aforementioned anomalous climates throughout North America.
The CPC officially considers it an event when the
sea surface temperatures in a key region
of the ocean reach at least 0.5 °C, or about 1 °F, warmer than
average.
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.
With higher levels
of carbon dioxide and higher
average temperatures, the oceans»
surface waters warm and
sea ice disappears, and the marine world will see increased stratification, intense nutrient trapping in the deep Southern Ocean (also known as the Antarctic Ocean) and nutrition starvation in the other oceans.
In a key region
of the tropical Pacific, the November
average sea surface temperature beat out records from 1983 and 1997, according to the European Centre for Medium - Range Weather Forecasts.
Below -
average sea -
surface temperatures commonly occur following an El Niño and appear to be associated with weather events opposite that
of El Niño.
The warmth was due to the near - record strong El Niño that developed during the Northern Hemisphere spring in the eastern and central equatorial Pacific Ocean and to large regions
of record warm and much warmer - than -
average sea surface temperatures in parts
of every major ocean basin.
Across the world's oceans, the September — November
average sea surface temperature was 0.84 °C (1.51 °F) above the 20th century
average of 16.0 °C (60.7 °F), the highest for September — November on record, surpassing the previous record set last year by 0.27 °C (0.15 °F).
(1) The warm
sea surface temperatures are not just some short - term anomaly but are part
of a long - term observed warming trend, in which ocean
temperatures off the US east coast are warming faster than global
average temperatures.
For the oceans, the November global
sea surface temperature was 0.84 °C (1.51 °F) above the 20th century
average of 15.8 °C (60.4 °F), the highest for November on record, surpassing the previous record set last year by 0.20 °C (0.36 °F).
The March — May globally
averaged sea surface temperature was 1.40 °F above the 20th century
average of 61.0 °F — the highest for March — May in the 1880 — 2016 record, surpassing the previous record
of 2015 by 0.20 °F.
The June globally
averaged sea surface temperature was 1.39 °F above the 20th century monthly
average of 61.5 °F — the highest global ocean
temperature for June in the 1880 — 2016 record, surpassing the previous record set in 2015 by 0.05 °F.
The June — August globally
averaged sea surface temperature was 1.39 °F above the 20th century
average of 61.5 °F the highest for June — August in the 1880 — 2016 record, surpassing the previous record
of 2015 by 0.02 °F.
The May globally
averaged sea surface temperature was 1.37 °F above the 20th century monthly
average of 61.3 °F — the highest global ocean
temperature for May in the 1880 — 2016 record, surpassing the previous record set in 2015 by 0.09 °F.
Much warmer - than -
average temperatures engulfed most
of the world's oceans during June 2016, with record high
sea surface temperatures across parts
of the central and southwest Pacific Ocean, northwestern and southwestern Atlantic Ocean, and across parts
of the northeastern Indian Ocean.
The April globally
averaged sea surface temperature was 1.44 °F above the 20th century monthly
average of 60.9 °F — the highest global ocean
temperature for April in the 1880 — 2016 record, surpassing the previous record set in 2015 by 0.25 °F and besting 1998, the last time a similar strength El Niño occurred, by 0.43 °F.
The year - to - date globally
averaged sea surface temperature was 1.42 °F above the 20th century
average of 60.9 °F.
The July globally
averaged sea surface temperature was 1.42 °F above the 20th century monthly
average of 61.5 °F — the highest global ocean
temperature for July in the 1880 — 2016 record, surpassing the previous record set in 2015 by 0.07 °F.
Any way you look it, from the Climate Prediction Center Outlook through May, to the ongoing warm anomalies in land and
sea surface temperatures, much
of the United States is likely to find above
average temperatures in the coming months.
The September globally
averaged sea surface temperature was 1.33 °F above the 20th century monthly
average of 61.1 °F, tying with 2014 as the second highest global ocean
temperature for September in the 1880 — 2016 record, behind 2015 by 0.16 °F.
The November globally
averaged sea surface temperature was 1.17 °F above the 20th century monthly
average of 60.4 °F.
The October globally
averaged sea surface temperature was 1.30 °F above the 20th century monthly
average of 60.6 °F.
Cooling
sea -
surface temperatures over the tropical Pacific Ocean — part
of a natural warm and cold cycle — may explain why global
average temperatures have stabilized in recent years, even as greenhouse gas emissions have been warming the planet.
La Niña is the positive phase
of the El Niño Southern Oscillation and is associated with cooler than
average sea surface temperatures in the central and eastern tropical Pacific Ocean.
Using monthly -
averaged global satellite records from the International Satellite Cloud Climatology Project (ISCCP [5]-RRB- and the MODerate Resolution Imaging Spectroradiometer (MODIS) in conjunction with
Sea Surface Temperature (SST) data from the National Oceanic and Atmospheric (NOAA) extended and reconstructed SST (ERSST) dataset [7] we have examined the reliability
of long - term cloud measurements.
The record - breaking year
of 2005 had below -
average dust over the Atlantic, very warm
sea surface temperatures, and an unprecedented four hurricanes that reached category 5, the highest classification.
The increase in these winds has caused eastern tropical Pacific cooling, amplified the Californian drought, accelerated
sea level rise three times faster than the global
average in the Western Pacific and has slowed the rise
of global
average surface temperatures since 2001.
Given all the independent lines
of evidence pointing to
average surface warming over the last few decades (satellite measurements, ocean
temperatures,
sea - level rise, retreating glaciers, phenological changes, shifts in the ranges
of temperature - sensitive species), it is highly implausible that it would lead to more than very minor refinements to the current overall picture.
For instance, Keigwin's NOV ’96 Science paper which showed 4 - 5 occurences higher sustained
sea -
surface temperatures oscillations over 3 milleniums
of core sample
averages, vs. our last 100 + years?
During the period 1992 - 2000, the
average sea -
surface temperature of the Indian Ocean increased by approximately 0.25 Celsius, this may be the cause
of an increased monsoon strength here (or more hurricanes on other places)...
So, although each molecule
of CO2 that escapes from the oceans will, on
average, be back in the ocean again in five years time, if the
sea surface temperature rises the increase in the atmospheric CO2 will remain.
Global
average temperature is lower during glacial periods for two primary reasons: 1) there was only about 190 ppm CO2 in the atmosphere, and other major greenhouse gases (CH4 and N2O) were also lower 2) the earth
surface was more reflective, due to the presence
of lots
of ice and snow on land, and lots more
sea ice than today (that is, the albedo was higher).
Sea surface temperatures remain in the range
of 2 - 4 degrees Celsius above
average as a heat dome high pressure system swelters Japan.
In our analysis we use eight well - known datasets: 1) globally
averaged well - mixed marine boundary layer CO2 data, 2) HadCRUT3
surface air
temperature data, 3) GISS
surface air
temperature data, 4) NCDC
surface air
temperature data, 5) HadSST2
sea surface temperature data, 6) UAH lower troposphere
temperature data series, 7) CDIAC data on release
of anthropogene CO2, and 8) GWP data on volcanic eruptions.
All we know for sure is that it hasn't warmed (according to the «globally and annually
averaged land and
sea surface temperature anomaly» record
of HadCRUT) since the end
of 1997.
Air
temperatures at 925 millibar (about 3,000 ft above the
surface) were mostly above
average over the Arctic Ocean, with positive anomalies
of 4 to 6º Celsius over the Chukchi and Bering
seas on the Pacific side
of the Arctic, and over the East Greenland
Sea on the Atlantic side.
It compiles a diverse set
of sea surface (not deep water)
temperature proxies to estimate a spatially - weighted global
average temperature anomaly.
The Oceanic Niño Index, the three - month -
average sea surface temperature departure from the long - term normal in one region
of the Pacific Ocean, is the primary number we use to measure the ocean part
of El Niño, and that value for November — January is 2.3 °C, tied with the same period in 1997 - 98.
For this reason, a number
of researchers have suggested that it should be possible to estimate the long term
Sea Surface Temperature trends for a given area by
averaging together all the available measurements from different voyages that went through that area in a given month.
Because hurricane caused flooding was more prevalent during the Little Ice Age when Atlantic
temperatures averaged 1 to 2 degrees F colder than today researchers concluded, «The frequent occurrence
of major hurricanes in the western Long Island record suggests that other climate phenomena, such as atmospheric circulation, may have been favorable for intense hurricane development despite lower
sea surface temperatures.»
Landsea said that NOAA's seasonal outlooks focused on the other pieces
of the puzzle that argued in favor
of an above
average to
average season, namely the absence
of El Nino and the presence
of warm
sea surface temperatures.
The NINO3.4 index is defined as the
average of sea surface temperature (SST) anomalies over the region 5 ° N - 5 ° S and 170 ° -120 ° W. El Niño (a warm event) is considered to occur when the NINO3.4 index persistently exceeds +0.8 °C.
In fact Trenberth 2015 cited Magnusson 2014 (a paper Trenberth helped craft) in which a ECMWF modeling experiment compared the most recent 20 - year
average sea surface temperatures with a swath
of the Atlantic's anomalously high
temperatures during Sandy's northward trek.
I downloaded these data and plotted them against the «globally and annually
averaged land and
sea surface temperature anomaly» record
of HadCRUT3, to see if there was any correlation.
This was defined as the date when the «globally and annually
averaged land and
sea surface temperature anomaly» (HadCRUT3 at the time) would exceed that
of 1990 by 0.5 ºC.
The negative phase
of IPO is characterized by cooler - than -
average sea surface temperatures in the Eastern Pacific, facilitating the expansion
of Antarctic
sea ice.