They came from model results, by using the recorded
sea surface temperatures during the two periods.
[later in the report:]
Sea surface temperatures during June 2009 were warmer than average across much of the world's oceans, with the exception of cooler - than - average conditions across the southern oceans.
They found that
sea surface temperatures during the Medieval Warm Period are approximately equal to today's temperatures.
Cooler
sea surface temperatures during La Nià ± a cause a particular form of oxygen to build up in the coral skeletons.
The greatest changes in
sea surface temperature during the El Nino occurs there and biologically, it has the greatest impact.
«In the North Atlantic region, where tropical cyclone records are longer and generally of better quality than elsewhere, power dissipation by tropical cyclones is highly correlated with
sea surface temperature during hurricane season in the regions where storms typically develop»
Sea surface temperature during the 2005 Caribbean bleaching event.
9) The correlation between CO2 content in atmosphere and sea surface temperature is connected especially with global
sea surface temperature during time periods when El Niño events are dominating.
Composite analysis of global
sea surface temperature during unusually wet and dry years also suggests a linkage between reconstructed rainfall and ENSO.
Not exact matches
One of the challenges has been accurately determining the difference between
sea surface temperatures at the poles and the equator
during the Eocene, with models predicting greater differences than data suggested.
During the IOD's positive phase,
sea surface temperatures rise in the Arabian Sea and fall around Indonesia, changes which reverse in the negative pha
sea surface temperatures rise in the Arabian
Sea and fall around Indonesia, changes which reverse in the negative pha
Sea and fall around Indonesia, changes which reverse in the negative phase.
This is a strong indication that agriculture, and not changing
sea surface temperature, caused the regional changes in climate
during the last third of the 20th century, the researchers say.
The future of the currents, whether slowing, stopping or reversing (as was observed
during several months measurements), could have a profound effect on regional weather patterns — from colder winters in Europe to a much warmer Caribbean (and hence warmer
sea surface temperatures to feed hurricanes).
But
sea surface temperatures in tropical areas are now warmer
during today's La Niña years (when the water is typically cooler) than
during El Niño events 40 years ago, says study coauthor Terry Hughes, a coral researcher at James Cook University in Townsville, Australia.
Kevin Trenbeth, a climate scientist at the National Center for Atmospheric Research in Boulder, Colo., said the study didn't account for changes in
sea surface temperatures, which are the main drivers of changes in the position of the rain belts (as is seen
during an El Nino event, when Pacific warming pushes the subtropical jet over the Western U.S. southward).
According to their observations,
sea surface temperatures in the Atlantic can be up to 1.5 °C warmer in the Gulf Stream region
during the positive phase of the AMO compared to the negative, colder phase.
During 2016, average
temperatures were the highest reported since record keeping began in 1880, reaching 1.69 degrees F (0.94 degrees C) above the average for land and
sea surfaces in the 20th century.
Radiocarbon dating of the charcoal samples provided an age for the shells; measurements of oxygen isotopes found in the clam fossils gave
sea surface temperatures every 2 to 4 weeks
during the clam's life.
The new results, published in Nature Geoscience, contradict those previous studies and indicate that tropical
sea surface temperatures were warmer
during the early - to - mid Pliocene, an interval spanning about 5 to 3 million years ago.
Vast numbers of corals died suddenly
during a record - breaking El Niño that raised
sea -
surface temperature 1 °C over a 3 - month period.
al, (June, 2005): [
During the Paleocene - Eocene thermal maximum (PETM),
sea surface temperature (SST) rose by 5 Deg C in the tropics and as much as 9 Deg C at high latitudes, whereas bottom - waters
temperatures increased 4 to 5 C.
A study published in the journal Geophysical Research Letters in December found: «The warmer (cooler) the Gulf of Mexico
sea surface temperatures, the more (less) hail and tornadoes occur
during March — May over the southern U.S.»
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.
Trenberth, K.E., et al., 1998: Progress
during TOGA in understanding and modeling global teleconnection associated with tropical
sea surface temperatures.
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.
During El Nino events the ocean circulation changes in such a way as to cause a large and temporary positive
sea surface temperature anomaly in the tropical Pacific.
Cooler than normal
sea surface temperatures (blue shades) were developing in the tropical Pacific Ocean
during October, signaling the possible development of La Nina.
However, climate change is causing abnormally high
sea -
surface temperatures, which is causing corals to bleach
during summer months (see below for detail).
Surface air
temperatures over the Barents and Kara
seas during winter, compared to the 1979 - 2013 average.
Even
during the region's warmest months,
sea surface temperatures can range from 80 down to below 70 degrees, and winter may bring chilly waters in the mid 60s, and occasionally as low as 58 degrees.
According to the investigation: «There is a strong increasing trend in
sea surface temperature over the northern Indian Ocean
during the 1952 - 96 time period» and «Soot was a sizeable fraction of the aerosol mix and caused substantial absorption of solar radiation.
The warm
sea surface temperatures in the gyres,
during hiatus decades, indicate convergence of near -
surface currents and strong downwelling of heat.
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)...
During a recent cruise of the New Zealand research vessel Tangaroa, skin
sea -
surface temperatures were measured to high accuracy by the Marine - Atmospheric Emitted Radiance Interferometer (M - AERI), and contemporaneous measurements of the bulk
temperature were measured at a depth of ~ 5 cm close to the M - AERI foot print by a precision thermistor mounted in a
surface - following float.
Combined climate / ice sheet model estimates in which the Greenland
surface temperature was as high
during the Eemian as indicated by the NEEM ice core record suggest that loss of less than about 1 m
sea level equivalent is very unlikely (e.g. Robinson et al. (2011).
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).
Particularly «The
Sea Surface Temperatures of the East Indian and West Pacific Oceans remain elevated
during the La Nina because the stronger trade winds reduce cloud cover.»
Second,
during the El Niño, note how the
sea surface temperatures warm first in the Atlantic, then in the Indian Ocean, and then in the western Pacific.
Surface air
temperatures over the Barents and Kara
seas during winter, compared to the 1979 - 2013 average.
The
Sea Surface Temperatures of the East Indian and West Pacific Oceans remain elevated
during the La Nina because the stronger trade winds reduce cloud cover.
Satellite
sea surface temperatures along the West Coast of the United States
during the 2014 — 2016 northeast Pacific marine heat wave (Geophysical Research Letters)
Sea -
surface temperatures, which drive the big tropical storms, have been high, and
during the past few years have seemed to correlate with increased coldness aloft.
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.»
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.
The periods of intense hurricanes uncovered by the new research were driven in part by intervals of warm
sea surface temperatures that previous research has shown occurred
during these time periods, according to the new study.
The intense prehistoric hurricanes were fueled in part by warmer
sea surface temperatures in the Atlantic Ocean
during the ancient period investigated than have been the norm off the U.S. East Coast over the last few hundred years, according to the study.
Key factors expected to influence the regional climate
during the OND 2016 season include the evolution of
Sea Surface Temperature (SST) anomalies over the tropical Oceans.
Sea Surface Emissivity,
Temperature and Atmospheric Measurements from the M - AERI
during the ACAPEX Campaign.
Ocean warming: «Assessing recent warming using instrumentally homogeneous
sea surface temperature records» «Tracking ocean heat uptake
during the
surface warming hiatus» «A review of global ocean
temperature observations: Implications for ocean heat content estimates and climate change» «Unabated planetary warming and its ocean structure since 2006»
Show data which shows ocean heat content increasing and
sea surface temperatures increasing
during a prolonged solar minimum period or vice versa.