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2 edition of Seasonal anomalies of temperature and salinity in the Northwest Atlantic in 1983 found in the catalog.

Seasonal anomalies of temperature and salinity in the Northwest Atlantic in 1983

J. R. Keeley

Seasonal anomalies of temperature and salinity in the Northwest Atlantic in 1983

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  • 25 Currently reading

Published by Marine Environmental Data Services Branch, Dept. of Fisheries and Oceans in Ottawa .
Written in English

    Subjects:
  • Ocean temperature -- North Atlantic Ocean -- Charts, diagrams, etc.,
  • Deep-sea temperature -- North Atlantic Ocean -- Charts, diagrams, etc.,
  • Salinity -- North Atlantic Ocean -- Charts, diagrams, etc.

  • Edition Notes

    Statementby J.R. Keeley and J.D. Taylor.
    SeriesCanadian technical report of hydrography and ocean sciences -- no. 74
    ContributionsTaylor, J. D., Canada. Marine Environmental Data Service., Canada. Dept. of Fisheries and Oceans.
    The Physical Object
    Pagination11, [32] p. :
    Number of Pages32
    ID Numbers
    Open LibraryOL15473758M

    The persistence of the warm pe- riod along the we51 coast is important. J. J +2* 0. J. Jan Fob Mar Apr May Jun Jul Aug Sop Oct Nov Doc Figure I.-Positive anomalies in SSl's observed oft' southern Calilornia during the warin periods of . out using the NCAR atmospheric general circulation model with specified sea surface temperature (SST) and sea ice anomalies confined to the North Atlantic sector. The spatial pattern of the anomalous forcing was chosen to be realistic in that it corresponds to the recent yr trend in SST and sea ice, but the anomaly amplitude.   title = "seasonal upwelling cycle along the eastern boundary of the north atlantic.", abstract = "Merchant ship observations are summarized for one-degree squares along the eastern shore of the Atlantic between 7 degree and 44 degree N; monthly averages are prepared for several properties including sea surface temperature and its difference Cited by: On the occurrence of "Grofwetterlagen" in winter related to anomalies in North Atlantic sea temperature J. OERLEMANS Utrecht (Netherlands) Summary. In this article, the main results of an investigation concerning the relation between deviating Atlantic sea tem-peratures and the frequency of occurrence of "Grof wetterla-gen" in winter are presented.

    Ménard, Observation of eddy fields in the Northwest Atlantic and Northwest Pacific by Seasat altimeter data,-J. GeoDhvs. Res. 88, () Y. Ménard, Observing the Seasonal Variability in the Tropical Atlantic from Altimetry, J. Geoohvs. Res., press. J.


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Seasonal anomalies of temperature and salinity in the Northwest Atlantic in 1983 by J. R. Keeley Download PDF EPUB FB2

The Northwest Atlantic (NWA) basin is one of few. regions in the World Ocean where the density of observations collected over the past 60 years is sufficient for reliable data mapping with spatial resolutions finer than one-degree. In the NWA, spatial resolution of gridded temperature and salinity fields.

that the North Atlantic low-frequency variations are closely related to the Great Salinity Anomalies (GSAs). A strong GSA event occurred in the s, when anomalous freshwater/sea ice from the Arctic ocean propagated into the North Atlantic subpolar gyre (Dickson et. The advective explanation of salinity changes recorded in various basins of the North Atlantic was suggested first by Ellett (), Ellett (), Lazier (), Taylor Seasonal anomalies of temperature and salinity in the Northwest Atlantic in 1983 book Stephens (), Taylor ().Northward propagation of anomalous TS-conditions (minima in both T and S) in the Norwegian Atlantic Current was implied by Gammelsrød and Holm ()and traced by Dickson and Blindheim Cited by: From DICKSON et a~).

Great salinity anomaly 5. DISCUSSION AND CONCLBSIONS The principal conclusion of this analysis is that the Great Salinity Anomaly was largely an advective event, traceable for 14 years around the northern North Atlantic from its origins around north of Iceland until its return to the Greenland Sea in Cited by: ally pronounced temperature and salinity anomalies in the mid-ocean in the study region, up to 4 C and 1, respec- tively (Richardson et al., ), and intensiv e sampling of.

In their work about the mechanisms behind salinity anomaly Seasonal anomalies of temperature and salinity in the Northwest Atlantic in 1983 book of the North Atlantic, Sundby and Drinkwater () stated that typical feature of the ocean is the large amplitude of inter.

Seasonal anomalies of temperature and salinity in the Northwest Atlantic in 1983 book The physical oceanography of the Middle Atlantic Bight (MAB) is investigated, with an emphasis on identifying seasonal and alongshore variability within the region.

While many previous studies assume uniform values throughout the MAB, and provide only a two-dimensional view of temperature, salinity and circulation, here a fully three dimensional spatial atlas of the MAB is Cited by: 3.

The Great Salinity Anomaly originally referred to a significant disturbance caused by a major pulse of freshwater input to the Nordic Seas in the late s and early s.

(Hakkinen. ) Since the discovery of this GSA, the term "Great Salinity Anomaly" has been applied to successive occurrences of the same phenomenon, including the Great Salinity Anomaly of the s and the Great.

It has been known that strong decadal variations can be found in the Kuroshio–Oyashio Extension Seasonal anomalies of temperature and salinity in the Northwest Atlantic in 1983 book region, characterized by extremely cool sea surface temperature (SST) anomalies in the s (e.g., White ; Deser et al.

; Schneider and Miller ).Using a coupled general circulation model, Latif and Barnett (, ) suggested that a slow dynamic adjustment in upper Cited by: 8. pronounced effect on the seasonal variation of temper- ature and salinity. The seasonal variation of these characteristics was discussed at length by Reid, Roden, and Wyllie ().

They gave representative curves of the variations for diverse areas constructed from monthly means of. The weekly sea surface temperature (SST) data of the whole North Sea and selected areas are analyzed using empirical orthogonal functions (EOF’s) and related to the North Atlantic Oscillation (NAO) index.

With the exception of the inflow area of the Fair Isle current, the SST anomalies of the whole North Sea and the selected areas show a good correlation to the NAO index, which Cited by: The eastern part of the North Atlantic subtropical gyre is found in the region between the Azores and the Cape Verde Islands.

A study of the gyre structure in the area east of. This work presents detailed maps of climatic temperature– salinity distribution of ocean characteristics in the subtropi-cal northeastern Atlantic (25–45 N and 6–35 W), with spe-cial focus on the propagation of the Mediterranean Water (MW).

The subtropical northeastern Atlantic region is dominatedCited by: 5. Recent hiatus caused by varying heat sink and the salinity anomalies in the North Atlantic surface warming started to slow down at the beginning of the 21st century which is Author: H.

The geostrophic circulation of active and intermediate layers in the north Tropical Atlantic is analysed on the basis of data collected in the transatlantic study area in – Its seasonal features are also found.

Quasi-steady eddy formations and their relation to the bottom topography are considered for the intermediate region. The influence of these formations on the kinematics of Cited by: 3. ON NONSEASONAL TEMPERATURE AND SALINITY VARIATIONS ALONG THE WEST COAST OF THE UNITED STATES AND CANADA GUNNAR I.

RODEN' The seasonal variations have been studied by McEwen (, ), and Pickard () and the temperature anomalies there is a slight dependence upon latitude, the anomalies bring somewhat larger. The mean surface temperature and salinity were °C and ‰ in summer and °C and ‰ in winter.

Over the nearly 13‐year observational period the surface temperature range was from 2° to 14%C and the surface salinity range was 26 to ‰. Abnormal warming throughout the water column was evident in – and JOURNAL OF CLIMATE VOLUME 15 FIG The SC of the first MCA mode between Pan-Atlantic SST and Z anomalies (the SCs are dimensionless as the SST and height fields have been normalized—see section 2).

SST leads Z at neg- ative lags indicated (in months) on the y axis while the x axis denotesCited by: Variability of temperature and salinity in the Middle Atlantic Bight and Gulf of Maine based on data collected as part of the MARMAP Ships of Opportunity Program, Published Date: Cited by: The average salinity of seawater is S = 35 which means that SW is % salt and % H2O by weight.

Why is salinity important. Salinity, along with temperature, determines the density of seawater, and hence its vertical flow patterns in thermohaline circulation.

Salinity records the physical processes affecting a water mass when it was File Size: 1MB. Two seasonal volumetric temperature/salinity diagrams have been prepared for the waters of the Middle Atlantic Bight from Nantucket Shoals to Cape Hatteras, to a depth of m and extending as much as km beyond the edge of the continental shelf.

Total volume included is 23, km 3, of which about half is slope water, more saline than 35 Cited by: Vertical variations of temperature and salinity in the upper layer can reach ˚C and 1‰ respectively. If we put these numbers into equation (1) we can obtain the contributions of variations in temperature and salinity to changes in water density, which are about 4% and 96%, : Ekaterina A.

Chernyavskaya, Ivan Sudakov, Kenneth M. Golden, Leonid A. Timokhov. In Australia, successful seasonal predictions of wet and dry conditions are achieved by utilizing the remote impact of sea surface temperature (SST) variability in tropical oceans, particularly the Pacific Ocean, on the seasonal timescale.

Beyond seasonal timescales, however, it is still unclear which processes and oceans contribute to interannual-to-decadal wet/dry conditions in by: 2.

News & Features; See all Recent Posts. May temperature and precipitation outlook. May 4, The May temperature and precipitation outlook issued by NOAA's Climate Prediction Center forecasts a warmer-than-average May for the western United States and Gulf Coast and a drier-than-average month for the Great Lakes.

Atlantic anomalies. temperature patterns in the North Atlantic. To appreciate the extent and speed of recent changes, consider these maps of some recent sea surface temperature anomalies. oscillation (QBO) to predict seasonal TC activity for the Atlantic basin.

The predictive utility of the pressure– TC relationship has been further refined by Gray et al. (, ). Though SLP anomalies in the TA seem to be strongly related to Atlantic TC activity, it is not clear in a dy-namic context how anomalous pressure variations of.

Seasonal cycles, by decade, of the abundance of diatoms (top row) and dinoflagellates (middle row) and the PCI (bottom row) in three regions of the Z Cited by: following Moisan and Niiler ().The terms represent, from left to right, local storage, horizontal advection, entrainment, vertical temperature/velocity covariance, net surface heat flux adjusted for the penetration of light below the mixed layer (q 0), and vertical turbulent diffusion at the base of the mixed layer (q − h).Here h is the depth of the mixed layer; T and υ are temperature Cited by: however, the warm period also appeared to be intense, exceeding that of and possibly equaling that of The magnitude and duration of positive temperature anomalies ob­ served off southern California during the warm periods of,and are shown in Figure I.

Sea ice concentration anomalies as long range predictors of hPa air temperature (T) anomalies in the to the regional nature of sea ice, it is not clear North Atlantic, taking SST anomalies as well as whether SIC anomalies could predict the large-various atmospheric variables as predictors.

The scale conditions in the North Atlantic. Multidecadal Ocean Temperature and Salinity Variability in the Tropical North Atlantic: Linking with the AMO, AMOC, and Subtropical Cell. Journal of Climate, 26, –, doi: /JCLI-D Wang, C., Zhang, L., and Lee, S.

Response of freshwater flux and sea surface salinity to variability of the Atlantic warm pool. Wide spread fresh anomalies in the surface salinity in the northern North Atlantic have been occurring nearly once a decade (Reverdin et. Belkin et al.

Individual 'fresh' events vary considerably from location to another, but by far the largest and most wide spread occurrence was the Great Salinity Anomaly (GSA) at the end of. Seasonal variation of nutrients and hydrological conditions in the State and adjacent continental shelf areas (South Atlantic Ocean - Brazil)* Parques marinhos constituem áreas importantes para a conservação da vida marinha e do patrimônio ge-nético em todo o mundo.

A criação de tais parques temperature, salinity, dissolved oxygen,Author: Elisabete de Santis Braga, Vitor Gonsalez Chiozzini, Chiara Machado Vieira.

Variability of Temperature and Salinity in the Middle Atlantic Bight and Gulf of Maine Based on Data Collected as Part of the MARMAP Ships of Opportunity Program, Jack W.

Jossi 1,2 and Robert L. Benway 1,3. The two main physical processes through which snow anomalies may affect climate on a seasonal timescale are the albedo effect and the hydrological ef- In practice, salinity is very difficult to measure and does not make a major contribution to the initial thermal state, so the direct method measures only temperature.

The National. The years through were largely devoid of persistent strong anomalies, but moderate cold conditions returned during – Warm conditions dominated the North Atlantic from onward. Within these thermal epochs, however, a total of five cold anomaly features and nine warm anomaly features have been by: A CPO-funded study found that wind speed variability associated with the Atlantic Meridional Mode contributes to anomalies in sea surface temperatures in the eastern equatorial Atlantic and the.

NOTES AND CORRESPONDENCE Impact of Great Salinity Anomalies on the Low-Frequency Variability of th e North Atlantic Climate R ONG Z HANG AND G EOFFREY K. V ALLIS Geophysical Fluid Dynamics Laboratory, and Atmospheric and Oceanic Scie nces Program, Princeton University. Assessment of Seasonal and Year-to-Year Surface Salinity Signals Retrieved from SMOS and Aquarius Missions in the Bay of Bengal, Int.

Remote Sens., 37 (5),doi: / Stochastic forcing of north tropical Atlantic sea surface temperatures by the North Atlantic Oscillation Cécile Penland1 and Leslie M. Hartten2, 1 Geophysical Research Letters In press 15 February Corresponding author: C.

Penland, NOAA/ESRL/Physical Sciences Division, R/PSD3, Broadway, Boulder COUSA ([email protected]). Pdf surface temperature and salinity variability at Bermuda during the end of the Little Ice Age Nathalie F. Goodkin,1,2 Konrad A.

Hughen,3 William B. Curry,4 Scott C. Doney,3 and Dorinda R. Ostermann4 Received 9 August ; revised 31 October ; accepted 13 March ; published 9 July Examination of download pdf and salinity data from the Scotian Shelf, Gulf of Maine, Gulf of St. Lawrence, and the adjacent continental slope has shown that the dominant low‐frequency event over the last 45 years was a cooling and subsurface freshening of the water masses from tofollowed by a rapid reversal of these by: Full text of "Introduction to Physical Oceanography" See other formats.