Sentences with phrase «ocean observations show»
But ocean observations show that freshwater flows differently.
https://www.sciencenewsforstudents.org/ Not exact matches
Observations show that the Southern Ocean is still pulling CO2 from the sky, but that may not last forever
The models did not show as strong a shift as the observations, Frierson said, suggesting that ocean circulation also played a role in the drought.
Scientific observations show that in the Arctic, warming temperatures have led to a 75 % loss in sea ice volume since the 1980s, and recent reports suggest the Arctic Ocean will be nearly free of summer sea ice by 2050, said Sullivan.
Their observations show that since the calving event, the berg has started to drift away from the Larsen - C, with open ocean clearly visible in the ~ 5 kilometre gap between the berg and the ice - shelf.
As Stephen C. Riser and M. Susan Lozier note in their February 2013 Scientific American article, «Rethinking the Gulf Stream,» «A comparison of the Argo data with ocean observations from the 1980s, carried out by Dean Roemmich and John Gilson of the Scripps Institution of Oceanography, shows that the upper few hundred meters of the oceans have warmed by about 0.2 degree C in the past 20 years.
Total sea ice cover on the Arctic Ocean peaked on March 7, satellite observations show, reaching a total area of 14.42 million square kilometers.
They used a high - resolution ocean model that has been shown to do a good job of matching direct satellite observations of the global ocean system.
«These surprising observations show us how a deep - sea animal reproduces,» says Barbara Ransom, a program director in the National Science Foundation's Division of Ocean Sciences, which funded the research.
By using long - term observations, scientists from the GEOMAR Helmholtz Centre for Ocean Research Kiel have now shown that freshwater has already impacted convection in the last decade.
Co-author Dr Ivan Haigh, lecturer in coastal oceanography at the University of Southampton and also based at NOCS, adds: «Historical observations show a rising sea level from about 1800 as sea water warmed up and melt water from glaciers and ice fields flowed into the oceans.
Observations of upper ocean heat show some short term cooling but measurements to greater depths (down to 2000 metres) show a steady warming trend: However, the ocean cooling myth does seem to be widespread so I'll shortly update this page to clarify the issue.
http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-11-00148.1 Global satellite observations show the sea surface temperature (SST) increasing since the 1970s in all ocean basins, while the net air — sea heat flux Q decreases.
You speak of heat going into the oceans, but didn't the last IPCC report show model projections of ocean heat content vs observations, and there was no extra heat in the oceans?
However, comparison of the global, annual mean time series of near - surface temperature (approximately 0 to 5 m depth) from this analysis and the corresponding SST series based on a subset of the International Comprehensive Ocean - Atmosphere Data Set (ICOADS) database (approximately 134 million SST observations; Smith and Reynolds, 2003 and additional data) shows a high correlation (r = 0.96) for the period 1955 to 2005.
The figure below, taken from the 2007 IPCC report, shows model runs with only natural forcings; model runs with all forcings; and observations of surface temperatures for the whole globe — land areas and ocean areas.
The key observation here is the increase in ocean heat content over the last half century (the figure below shows three estimates of the changes since 1955).
It seems to me that they must show deeper mixing than 50 M, since there is not enough mass in the upper 50 meters of ocean to account for the annual heat storage changes that are implied by observations for the the full integrated 700 meter volume of ocean.
You speak of heat going into the oceans, but didn't the last IPCC report show model projections of ocean heat content vs observations, and there was no extra heat in the oceans?
Abstract:... Here we show that a pronounced strengthening in Pacific trade winds over the past two decades — unprecedented in observations / reanalysis data and not captured by climate models — is sufficient to account for the cooling of the tropical Pacific and a substantial slowdown in surface warming through increased subsurface ocean heat uptake.
This is supported by historic observations (Figure 1), which shows roughly decade - long hiatus periods in upper ocean heat content during the 1960s to 1970s, and the 1980s to 1990s.
Observations in the tropical Atlantic ocean (11) show that the clear sky downwelling infrared flux incident on the surface (Fa ---RRB- also increases faster than the surface emission with increasing SST.
One of the things pointed out in that post is that we know that the rise in atmospheric CO2 is entirely caused by fossil fuel burning and deforestation because many independent observations show that the carbon content has also increased in the ocean.
Scientific observations show that ocean acidification is already occurring around the globe and is amplified in some coastal regions by changing ocean circulation, pollution, and land management practices.
However, comparison of the global, annual mean time series of near - surface temperature (approximately 0 to 5 m depth) from this analysis and the corresponding SST series based on a subset of the International Comprehensive Ocean - Atmosphere Data Set (ICOADS) database (approximately 134 million SST observations; Smith and Reynolds, 2003 and additional data) shows a high correlation (r = 0.96) for the period 1955 to 2005.
«However, the decrease in reflected SW radiation from the 1980s to the 1990s may be inconsistent with the increase in total and low cloud cover over oceans reported by surface observations (Norris, 2005a), which show increased low cloud occurrence.
Notably the observations show greater warming in the deeper layers, with the strongest deep ocean warming occurring in the Atlantic & Southern Oocean warming occurring in the Atlantic & Southern OceanOcean.
Along those lines, Watanabe et al. (2013) showed that ocean heat uptake has become more efficient over the past decade, which is consistent with the observations of Balmaseda et al. (2013), who found an unprecedented transfer of heat to the deep oceans over the past decade, consistent with the modeling in Meehl et al (2013).
Several studies have shown that observations of sea surface height (SSH) are strongly correlated with the thermal structure of the upper ocean (e.g. Goni et al. 1996; Gilson et al. 1998; Mayer et al. 2001; Willis et al. 2004).
Because the GISS analysis combines available sea surface temperature records with meteorological station measurements, we test alternative choices for the ocean data, showing that global temperature change is sensitive to estimated temperature change in polar regions where observations are limited.
«The authors write that North Pacific Decadal Variability (NPDV) «is a key component in predictability studies of both regional and global climate change,»... they emphasize that given the links between both the PDO and the NPGO with global climate, the accurate characterization and the degree of predictability of these two modes in coupled climate models is an important «open question in climate dynamics» that needs to be addressed... report that model - derived «temporal and spatial statistics of the North Pacific Ocean modes exhibit significant discrepancies from observations in their twentieth - century climate... conclude that «for implications on future climate change, the coupled climate models show no consensus on projected future changes in frequency of either the first or second leading pattern of North Pacific SST anomalies,» and they say that «the lack of a consensus in changes in either mode also affects confidence in projected changes in the overlying atmospheric circulation.»»
In an earlier study (Labe et al., 2018a), we show that the CESM - LENS sea ice thickness compares well with satellite observations and output from an ice - ocean model.
What I said was that the observations show the oceans are warming, contrary to what Nova claims.
The observations show that heat is accumulating in the ocean.
Recent ocean heat content (OHC) calculations have shown a dramatic shift during the period 2001 — 2003, which is nearly coincident with a major transition in the ocean observation network from a ship - based system to Argo floats.
However, the observations show that both surface temperatures as well as ocean heat content started to increase (during the 1970's and 80's) long after solar activity had reached its plateau (during the 1950's).
Observations show the oceans are a «sink» rather than a source of CO2 in the atmosphere
Most scientific observations show this effect appears to be taking place in the Atlantic, correlated with rising ocean temperatures.
http://www.sciencedaily.com/releases/2014/02/140202111055.htm «The satellite observations have shown that warming of the tropical Indian Ocean and tropical Western Pacific Ocean — with resulting increased precipitation and water vapor there — causes the opposite effect of cooling in the TTL region above the warming sea surface.
But then again, there is a set of observations showing that if you add some extra energy in the form of DLR, the part of the ocean that we are able to measure by its IR emission (the skin) warms up a little.
Observations now show that the seasonal cycle of CO2 in the ocean also changes, leading to earlier occurrence of detrimental conditions for ocean biota.
Observations showing that the skin (top tens of um) of the ocean is usually colder than the water below convincing demonstrate that increasing DLR will warm the upper ocean and that Hypothesis A and B are untenable.
The observation - based (Global Ocean Data Analysis Project; GLODAP) 1994 saturation horizon (solid white line) is also shown to illustrate the projected changes in the saturation horizon compared to the present.
For example, the calculations of Haywood et al. (1999) showed that the clear - sky outgoing flux at the TOA over oceans yields excellent agreement with Earth Radiation Budget Experiment (ERBE) observations when aerosol species are considered.
Yet the skin layer does show warming and the sub skin is cooler than the ocean bulk Observations rule and as we have seen already the science on these issues is vague and inconclusive so I wouldn't use the term «impossible».
Observations, however, show no evidence for cooling of the subsurface ocean.
I'm not aware of observations that show that deep ocean layers have cooled over the last 50 years.
New techniques in modelling have revealed that, from mainly non-direct satellite radiance observations of temperature, it is possible to show the Arctic amplification is at its maximum at the surface of the ocean.
An Alaskan glacier has lost its footing with the seafloor and is floating in the ocean, new first - of - their - kind observations show.
Still a lot of work to be done, and a deep - ocean observation system would be desirable but, as Balmaseda (2013) has demonstrated, the observations show that global warming has actually accelerated over the last 16 years.