ࡱ> zRoot Entry Fh{@Data #1TablelWordDocument  !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~(      !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHabcdefghijklmnopqrstuvSummaryInformation(DocumentSummaryInformation8CompObjX0Table h [(@(NormalCJmH <@< Heading 1$@&>*OJPJQJ<@< Heading 2$@&6OJQJmH H@H Heading 3$<@&5CJOJQJmH@@@ Heading 4 $$@&5OJQJmH <A@<Default Paragraph Font(U@( Hyperlink>*B*>Q@> Body Text 3$OJQJmH nH >B@> Body Text$CJOJQJmH nH 0/@"0List  OJQJmH42@24List 2 6 OJQJmHFE@BFList Continue 2 6x OJQJmH>P@R> Body Text 2$KHOJQJmH LC@bLBody Text Indent $KHOJQJmH >Or> Normal-PL $CJOJQJnH ȍ!!!!!!!!! ! ! ! ! !!!! s D  (`16 <BOM]v_/a}h{ȍ  b   1>?@j@Aklab{|9samples were collected in 10-l Bullister style rosette bottles. CFC samples, the first samples taken from the bottles, were drawn into 100-cc precision ground glass syringes and stored in a sink continuously flushed with clean surface seawater until analysis. Samples were stored for no longer than 8 hours. Air samples were collected by pumping air from the bow directly to the CFC analysis system during periods when the bow was into the wind. The CFC samples were analyzed using an automated purge and trap system interfaced to a gas chromatograph with an electron capture detector for CFCs 11, 12, and 113. The column arrangement for the gas chromatograph consisted of a yyy x 1/8 inch diameter precolumn of zzzz, a yyy x 1/8 inch diameter main column of zzzz and a yyy x 1/8 inch diameter post column of molecular sieve 5A. The precolumn and main column were operated at 95C and the post column at dddC. The post column separated N2O from CFC-12 and was valved out of the gas stream before CFC-11 and CFC-113 eluted. The precolumn and main column provided good separation between the CFCs methyl iodide. Chromatograms were acquired didgetly on a PC and the CFC peak areas determined using HP Chemstation software. Calibration curves were run at the beginning and end of the cruise and every 3-4 days in between. A gas standard with known amounts of CFCs 11, 12 and 113 in nitrogen in seawater ratios was used for calibration. This standard was prepared about one month prior to the cruise and since we had no history on its stability, it was calibrated several times during the course of the cruise against a standard kindly provided to us by John Bullister of PMEL/NOAA. From our initial analysis of these results, our standard appeared to be stable and a more careful analysis of these results will be carried out after the cruise. The standards are on the SIO 98 calibration scale. Two CFC analysis systems were used which enabled greater than 90% of the water samples collected to be analyzed. Duplicates were collected nearly every station for comparison of the two systems and for determination of the precision for each system. Preliminary calibration curves were fit to the calibration data and preliminary CFC concentrations calculated after the completion of each station. These preliminary data were merged with the preliminary hydrographic data at sea and made available for everyone on the cruise. Results About 3000 water samples were analyzed for CFCs 11, 12 and 113 and air samples (5 replicates per analysis) were measured daily. Both systems worked very well with little down time. A high quality and rich data set was obtained. Some of the prominent features in the data are given below. The highest CFC concentrations were observed in the cold surface and near surface water of the Iceland Sea. This feature was connected isopycnally to a subsurface maximum of CFC concentrations in the southern Norwegian Sea. In the central Greenland Sea relatively high concentrations were mixed down to about 1500 m indicating recent convection to that depth. There was also a hint of slightly higher CFC concentrations at the bottom relative to the low concentrations in the bottom few hundred meters of the Greenland Sea. There was a distinct difference in the CFC-11:CFC-12 ratio between ambient water in the Nordic seas and recent inflow of near surface Atlantic water. The warm Atlantic water had a lower ratio than the cold Nordic seas water. Recently formed dense water from xxx Fjord in the Barents Sea was observed as a high CFC feature along the continental slope off Svalbard. The CFC concentration in Iceland-Scotland Overflow Water was relatively low indicating its origin from a density horizon within the Norwegian Sea that is not rapidlly ventilated. Acknowledgements This work was supported by National Science Foundation grant OCE 01-xxxxx. Preliminary CO2 report (R. Bellerby): 1. Rationale The Nordic Seas play an important role in the transfer of carbon from the surface ocean to the intermediate and deep waters of the North Atlantic Ocean. The surface waters that enter the Nordic Seas from the North Atlantic are fully loaded with their anthropogenic quota of carbon and, generally, take up more natural carbon from the atmosphere due to cooling and biological productivity on the journey northwards. Factors that control the surface CO2-system properties of the Nordic Seas are poorly understood due to the scarcity of high quality data and intermittency of multi-parameter expeditions. The North Atlantic Oscillation has been shown to play an important role in determining the flux of carbon between the atmosphere and ocean in this area (Olsen et al. submitted) primarily by determining the wind-speed and route of storm tracks (Nondal, 2002). The transport fate of this carbon depends on many factors including: the surface propagation route across the Nordic Seas; the extent and timing of biological activity; and the deep and intermediate water formation rates in, primarily, the Greenland Sea. The Nordic Seas have shown considerable change since the 1980s reflecting increases in the flow of deep water from the Arctic and a reduction in the influx of surface North Atlantic waters. This is generally assumed to be linked to a reduction in the deep-water convection in the Greenland Sea, although the cause is still a matter of speculation, reducing the southward meridional transport of carbon into the subsurface waters of the North Atlantic and also altering the biogeochemical characteristics of the waters entering the Barents Sea and the Arctic Ocean. Finally, the increase in atmospheric carbon concentrations is reflected, to some extent, in the surface pH of the oceans. Predicted surface pH decreases will have a deleterious effect on the physiology of some, particularly calcareous, marine organisms and may alter the efficiency of the biological pump due to changing the plankton community structure and its carbon utilisation efficiency. The aim of the CO2 system study is thus multi-faceted: To gather surface pCO2 and pHT data to model the mechanistic controls on the surface CO2 system. The pH measurements will be the first extensive survey of the study area and will provide a benchmark from which future pH decreases may be determined. To determine basin-wide, full profile characteristics of the CO2 system, through TCO2 and total alkalinity measurements and the determination of meridional and zonal carbon transfer rates. These will be compared to previous studies onward from the TTO-NAS and through the ESOP, IMCORP and NORCLIM campaigns. The long term monitoring of the CO2 system in waters associated with the deliberately released tracer SF6 (see section on SF6 measurements) will be continued and used to determine the movement and rate of carbon transport in the tagged patch. In association with other biogeochemical measurements within the tagged water, the regeneration rate of biologically derived nutrients, including carbon, will be possible if there is sufficient variation with the surrounding waters to enable mixing rates to be determined. 2. Methods and preliminary results 2.1. Total inorganic carbon Discrete measurements of total inorganic carbon (TCO2) were made from water samples from Niskin bottles on the CTD rosette. The SOMMA (Single Operator Multiparameter Metabolic Analyzer) system was used (Johnson et al. (1993)) where acidification of a known volume of seawater releases the TCO2 as CO2 gas which is bubbled through an organic solution to form a titratable acid. The titration is performed against a colour indicator by electrolytically generated hydroxyl ions and the total current required gives a direct value of the amount of carbon titrated. All samples were measured within 24 hours of collection. The precision of the instrument during the test station was ( 1.3 (mol.kg-1 (n = 20) based on multiple measurements on samples from same-depth rosettes. The accuracy of the method is assured against certified reference materials (CRMs) from Prof. Andrew Dicksons laboratory at SIO. CRM Batch 56 was used for both TCO2 and total alkalinity calibration. In total xxxx samples were measured for TCO2. Specimen depth profiles are shown in Figure 1 for stations 5,6 and 10 in the Iceland Sea. Total alkalinity Total alkalinity was measured in the remaining sample after the TCO2 measurement. A known amount of sample was titrated, potentiometrically, against 0.05M HCl in 0.6M NaCl using GRAN titration with sample temperature measured during each electrode potential reading. Analyses at the same-depth CTD test station resulted in a poor precision due to insufficient  warming-up of the system. However, the final Niskin showed a precision of 1.7 mmol.l-1 (n=6) and replicate analysis of CRMs show that this precision was obtained, or exceeded throughout the majority of the cruise. Due to a leak in the acid burette water jacket, it was not possible to thermally regulate the acid prior to addition. Therefore, it is possible that there may be some inaccuracy incurred due to room temperature variations between sample and CRM measurements. Following an unprecedented number of sample measurements it was necessary to make up new acid with table salt as the NaCl base (due the unavailability of NaCl on the ship). The salt was re-crystallised to increase purity prior to use. Due to the crossing of cruise tracks, it was possible to compare the analysis of similar surface waters measured with the two acids and the obtained alkalinities agreed to 1 mmol.l-1. There was an offset between the two acid batches used and this has been partially ascribed to the salt containing traces of carbonate. The acid will be thoroughly analysed back in the laboratory. In total xxxx samples were measured for total alkalinity. Specimen depth profiles are shown in Figure 1 for stations 5,6 and 10 in the Iceland Sea. Partial pressure of carbon dioxide The partial pressure of CO2 (pCO2) was measured using an adaptation of the traditional moored role of the Submersible Autonomous Moored Instrument for CO2 (SAMI-CO2) (DeGrandpre et al., 1993; DeGrandpre and Bellerby, 1995). Seawater pCO2 was measured on seawater, in a specially designed hat, from the shipboard seawater supply following equilibration of CO2 gas, across a Figure 1. Depth profiles of TCO2 and total alkalinity for stations 5, 6 and 10 in the Iceland Sea. The data is preliminary but shows that, contrary to earlier studies of the Nordic Seas, the deep water CO2 system is not monotonous but shows distinct features that are common between stations. The profile detail and inter-profile congruency also suggest that the precision of the instrumentation declared in the text (and shown as the error bar in each diagram box) may have been underestimated.  silicone membrane, with a solution of bromothymol blue. The resultant pH of the solution was determined photometrically and pCO2 calculated from a predetermined pCO2/pH dependency of the solution and the measurement temperature. pCO2 measurements are reported every 30 minutes. The data is logged on an internal computer and the indicator solution will be recalibrated back in the laboratory. 2.4. Spectrophotometric pHT Seawater pHT was measured on-line from the ships underway laboratory seawater supply via a constant header tank. The multi-wavelength spectrophotometric method of Bellerby et al. (2002) was employed where the change in absorption of a seawater sample is measured after the addition of the pH-sensitive sulfonephthalein indicator thymol blue. The method has a measurement frequency of 20 samples per hour and a precision of ( 0.0007 pH units. pH is reported on the total hydrogen ion scale with an estimated accuracy of 0.003 units. Problems with light levels meant that seawater pH was not measured through the Iceland Sea. However, surface pHT was measured for the duration of the cruise resulting a dataset consisting of an estimated 15000 data points. Significant post cruise analysis is required, such as recalculation of pHT using in situ salinity and temperature, so no data is ready for reporting at present. Acknowledgements We would like to acknowledge the excellent support from the Captain and crew of the RV Knorr. The outstanding input from the SSSG, particularly at the onset of the study, made the instrument setup go smoothly. We were encouraged by the stimulating scientific discussions with the Chief Scientist Bill Smethie, Jim Swift and the rest of the science team. The contribution of George Anderson to the well being of the TCO2 and total alkalinity instrumentation (and for the insight into the use of a NaCl substitution) can never be overstated. This research was funded by Grants # xxxx and XXXX; blah blah References Bellerby R.G.J., Olsen A., Johannessen T. and Croot P., 2002. The Automated Marine pH Sensor (AMpS): a high precision continuous spectrophotometric method for seawater pH measurement. Talanta. Degrandpre M.D., Hammar T.R., Smith S.P. and Sayles F.L., 1995. In situ measurements of seawater pCO2. Limnology and Oceanography, 40, 969-975. DeGrandpre M.D. and Bellerby R.G.J., 1995. Chemical Sensors in Marine Science. Oceanus, 38(1), 30-32 Johnson K.M., Willis K.D., Butler D.B., Johnson W.K. and Wong C.S., 1993. Coulometric total carbon dioxide analysis for marine studies: maximizing the performance of an automated gas extraction system and coulometric detector. Marine Chemistry, 44, 167-187. Nondal G., 2002. Great Sea Journeys a survival guide. Oddas Tidene, July 2002, p6. Olsen A., Bellerby R.G.J., Johannessen T., Omar A. And Skjelvan I., 2002. Interannual variability in the wintertime flux air-sea flux of carbon dioxide in the North Atlantic 1981-2001, and the relation with the North Atlantic Oscillation. Deep-Sea Research I, in revision. Preliminary SF6 report (M.J. Messias): Introduction and objectives The Greenland Sea (GS) is believed to be one of the most important regions to ventilate the world oceans, and convective processes there is regarded to be an important contributor to drive the general thermohaline circulation of the oceans. For this reason, in August 1996, a tracer release experiment was launched in the intermediate-depth waters (GAIW) of the central Greenland Sea, to study convection, vertical mixing, lateral dispersion, and exchange with the surrounding seas and current systems. The tracer, 320 kg of sulfur hexafluoride, was injected on the 28.049 potential density surface (300m) in the center of the Greenland Sea Gyre at 75 N and approximately 3 W. Since then, the evolving tracer distribution has been documented in time and space from the Greenland Sea to the surrounding oceans by a survey at least once a year (1996-1998: EU project ESOP2, 1999-2000: UK NERC project ARCICE, 2001-2003: EU project TRACTOR). Sulphur hexafluoride (SF6) is an excellent tracer (non-toxic, conservative and inert anthropogenic compound) of large-scale experiments because it has an exceptional low limit detection in sea water at ~0.01 fmol/l (1fmol=10-15 mol) and the release of only few hundreds of kilograms in the open ocean can last up to several years and cover hundreds of kilometres. The experiment, specifically designed to enable study of regional as well as large-scale circulation, focuses on water mass transformations associated with dense water production and contributing to the Northern component of the global thermohaline circulation. The objective of the SF6 survey conducted from R/V KNORR was to document the lateral and vertical extent of the patch over the Nordic Seas and the Iceland-Shetland outflow 6 years after release, to determine the important processes/routes allowing tagged Greenland Intermediate Waters to spread through the Nordic Seas into the North Atlantic Ocean, and to measure the amount of tracer that had reached the Boreas Basin and the Fram Strait to the north, the Icelandic Sea to the southwest and the Norwegian Sea /Iceland-Scotland system to the southeast. The Knorr cruise was carried on in conjunction with the icebreaker Oden cruise that was in charge of the survey of the East Greenland Current system from Fram Strait to south of the Denmark Strait and complete the coverage of the April-June 2002 Nordic Seas survey. Work at Sea SF6 was sampled at 153 of the 159 stations occupied during the cruise, from most of the rosette bottles tripped at these stations. Sampling depths were chosen to obtain 100-meter spacing in the tracer patch. The water samples for SF6 were sampled into 500-ml glass bottles (BOD) in third position after CFCs, helium and oxygen. Samples were run, usually within 3-6 hours of being taken, by electron-capture gas chromatography. If not run immediately, the samples were stored at low temperature in cool boxes on deck. The number of rosette samples successfully analyzed for SF6 during the 30-day cruise was 2554. Preliminary concentration data were calculated using a set of 4 secondary gas standards (10.6 ppt, 15 ppt, 33 ppt, 51 ppt) and plotted during the cruise as individual profiles. Back at UEA, these standards will be calibrated against a primary standard provided to UEA by NOAA in May 2002 and subsequently a corrected SF6 data set will be calculated. Preliminary Results SF6 from the tracer patch was found at every station reaching potential density anomalies greater than 28.025 kg/m^3. The scatter plots of all the SF6 data for the all cruise versus  (range 27.5 to 28.01) is presented Figure 1. The vertical distribution of the main tracer patch still appears symmetrical around relatively sharp peaks with maximum concentrations found between potential density anomalies of 28.03 and 28.058 kg/m^3. Six year after the release, the higher concentration of the tracer still resides in the Greenland Sea basin but a large part of it appeared to be now in transit to/within the other ocean basins (Boreas basin, Icelandic Sea, Norwegian Sea, Arctic Ocean and North Atlantic). Figure 2 gives an illustration of the SF6 profiles measured in the basins surveyed during section 1 from Iceland to Spitzbergen and across the East Greenland Current at 70N. Station 40, located in an area of the GS not affected by winter convection, presents peak concentration greater than 4.5 fM (1 fM = 10^-15 moles/L). High tracer concentrations around 4 fM were also found, however, over the Boreas basin (ST29) and at ST33 into the West Spitzbergen Current at the Fram Strait, indicating a major direct route for the intermediates waters from the GS (and the Boreas Basin) to the Arctic. To the southwest, concentrations appeared lower, falling to 2.5 fM in the Icelandic Sea (ST7) and the ECG at 70N (ST93/94/95). High concentrations greater than 3 fM were found again along the Jan Mayen Ridge (ST87 at 70N and then ST 103 at 66N) spreading into the Norwegian Sea and southeast towards the overflows in the Iceland-Faroe-Shetland ridges. Inside the Faroes-Schetland Channel tracer had clearly penetrated into the western side of the channel (ST 154, figure 3). Figure 4 presents the SF6 profiles in the GS Abyssal Plain itself. At the level of the injection, the tracer patch appears to be redistributed over the water column from 300 to 1500 dbars as the result of winter convection. The enrichment of SF6 at the bottom of the Greenland Sea was first observed 1 year after the release with concentration 0.8 fmol/l. It was likely due to SF6 that was misinjected during the release and fell to the bottom before dissolving. Six years later this tracer is still measureable with concentrations at the bottom of approximately 0.3 fM (toward the background level below 0.1 fM). The lateral distribution will be used to provide important information on the contribution, the pathways and their rate of speed of the tagged GS water spreading towards the Nordic Seas and its outflows. The distribution of the tracer across density surfaces has been well resolved. It will be used to estimate rates of diapycnal dispersion due to convection and to shear-induced turbulence. 6 year after the release, the rate of spread will enable to test if it has been accelerated by boundary mixing as the tracer entered regions with topographic features. The distribution of the tracer patch at the bottom of the GS when compared to measurements from previous years, should provide estimates of the diapycnal diffusivity in the GS bottom boundary layer. The SF6/CFCs data association may be of special interest in investigating the renewal (diffusion/downslope motion in the bottom boundary layer) of bottom and deep waters of the GS. Acknowledgements Cruise coordinators and chief scientists were Bill Smethie and Jim Swift. Many thanks are due to the captain and crew of the Knorr and in particular to the electrician engineer for his productive assistance. Thanks are also due to Vassili Alfimov for his help in sampling and cooperation. The present work is funded by the European Project Tractor (Tracer and Circulation in the Nordics Seas region, European commission under the fifth framework programme, contract number EVK2-2000-00080).  Figure 1: Scatter plot of SF6 versus potential density  Figure 2: SF6 versus pressure in the Iceland Sea (ST7), north of Jan Mayen (St15), in the Boreas basin (ST29), in the Fram Strait (ST33), in the GS basin (ST40) and in ECG at 70N (ST94).  Figure 3: SF6 versus Pr at the Faroe-Shetland chanel: The profile (ST154) in the western part of the channel clearly shows the SF6 signal from the release at 850 dbars depth in opposite to the profile (ST155) in the eastern part of the channel.  Figure 4: SF6 versus pressure in the Greenland abyssal plain: the tracer peak appears to be redistributed over the water column from 300 to 1500 dbars as the result of winter convection. Preliminary I-129 report: I-129 and Be-10 samples collected by the University of Uppsala (V. Alfimov) The project will aim to establish data series for the radioactive isotopes 129I and 10Be in ocean water and sediments of the Nordic Seas (Iceland, Norwegian and Greenland Seas), which can serve as: basic information (temporal and spatial) about pattern and sources of water mass exchange routes and rates within the Nordic seas and between the North Atlantic and Arctic Oceans. For example, tracing the East Greenland Current and its branches (Jan Mayen Current, East Icelandic Current), the different water masses of the interior basins of the Nordic Seas and details of inflow and outflow of the Nordic Seas, mainly in the eastern Fram Strait, the Denmark Strait and the Iceland-Scotland sill. means of quantifying further contributions from anthropogenic (bomb-tests, nuclear accidents and nuclear reprocessing facilities) releases. a tool for understanding of preservation and/or dissipation and cycling behaviour of radioactive isotopes between the oceans and ocean sediment which is crucial knowledge for tracer modelling. basic data about the interaction between chemical entities that share the same environment (the ocean), but have variable geochemical behaviour. The use of chemical tracers (natural and anthropogenic) has expanded our understanding of circulation pattern and ventilation rates in the ocean. For example, tritium (3H), helium (3He) and chlorofluorocarbons (CFCs) were valuable tools for estimating age and ventilation in the North Atlantic, among other oceans. Numerous studies have, however, shown that we are still far away from complete understanding of most oceanic processes and further development in tracer technology can, without doubt, substantially increase our knowledge. In addition to basic oceanographic research, two issues have strongly increased the interest in oceanic tracers. These are: 1) significant influence of the ocean circulation on climate and 2) the fate of man-made pollution in the environment. Recent studies indicate that even the pristine environment of the Arctic Ocean has not been spared from man-made pollution and evidently this process is rapidly increasing. This dilemma needs to be evaluated or at least carefully understood with all possible scientific methods and tracer technology provides important approaches to resolve problems related to the temporal and spatial variability of oceanic processes. Three problems are generally faced during such approaches: 1) sensitivity of the tracer and analytical techniques 2) origin of the tracer and 3) the span of time window to be used. To overcome these problems, we plan to investigate, simultaneously, the distribution of two radioactive tracers (129I and 10Be) and to compare them with other tracer data from the Odin-Knorr cruises. The radioactive isotopes to be used in this study are 129I (half-life 15.7 million years) and 10Be (half-life 1.5 million years). These isotopes have different source, geochemical cycle and residence time in the ocean and thus form a strong base for integration of oceanic processes. Although these isotopes are produced by interaction of cosmic rays with the Earth's atmosphere and surface, 129I is also naturally produced by the spontaneous and neutron-induced fission of 238U. From the middle of the last century 129I is produced anthropogenically. This latter source has apparently contaminated large areas of the oceans and lands and elevated the natural ratio of 129I/127I from about 10-12 to as much as 10-7-10-10. 129I is usually incorporated in the organic cycle, but not 10Be. The latter is more common in nonbiogenic particles such as clay minerals and Fe-Mn compounds. Our interest in 129I is to trace spatial and temporal distribution, of presently the voluminous release path of this isotope, from the discharges of the nuclear fuel reprocessing facilities at Sellafield in the United Kingdom (operating since 1954) and La Hague in France (operating since 1965). These facilities have released up to 95% of total anthropogenic 129I in the environment. This 129I is transported into the North Sea, then with the Norwegian Coastal Current to the Nordic Seas and further to the Arctic Ocean. 129I occurs in the biological cycle and thus forms an important tracer in all components of the ocean (water, organisms and sediments). To utilise chemical features of these isotopes and their ultra-sensitive concentrations (at the levels of <10-8 g per liter of ocean water or gram of sediments), we shall measure their distribution in different compartments of the Nordic Seas (Iceland, Norwegian and Greenland Seas). This approach can provide an effective tool for understanding interactions between the North Atlantic and Arctic Oceans. The Nordic Seas act as a mediator for the exchange of flow between the two oceans and thus form a priority target for our investigation. Measurements of 129I and 10Be at the Uppsala AMS system The Accelerator Mass Spectrometry (AMS) is an ultra-sensitive method for the analysis of isotopic ratios. In this method atoms are ionised from a sample, then they are accelerated to high energies and separated according to their momentum, energy and charge. This gives the discrimination between ions of interest and interfering ions. At the end every ion is individually counted on the detector and identified by its atomic number and mass. Typical AMS energies are located in millions of electron volts (MeV) region, whereas traditional mass spectrometry deals with thousands of electron volts (keV). Such high energies of AMS are necessary for obtaining the proper sensitivity for isotopic analysis; at isotopic ratio of 10-15 that is about 5 orders of magnitude more sensitive than in most conventional mass spectrometry systems. Additional features of AMS are much faster analytical time and smaller amount of sample. The investigation of 10Be and 129I at Uppsala was started in 1990 and 1995 respectively with the necessary technical development of the accelerator and detection system. Chemical separation procedures of the isotopes from water and solid materials (sediment, rocks and variety of organic matters) were developed. Data and co-operation Data of the project are expected to be ready within the years 2003/2004. The project will benefit from collaboration with the other research groups attended the cruise in particular with Jean-Claude Gascards group in order to have complete coverage of the main oceanographical features of the Nordic Seas. Sampling locations (See separate file for the detailed information) In order to comply with the selected objectives, samples of the seawater (Oden, Knorr) and rainwater (Knorr) were taken. Surface samples were taken from almost all stations, but the deep water sampling program was carried out on the following stations The Iceland Sea 4, 7, 9, 11 The Jan Mayen Current 15 The Greenland Sea 17, 18, 20, 24, 26, 29 The eastern part of the Fram Strait: 33, 35, 36, 37, 39 Section 75 20N (from the Greenland Sea to the West Spitsbergen Current): 41, 43, 45, 48 Section 18 E (from Spitsbergen to Norway): 54, 56, 59, 61, 63, 65, 67 Section 70 N (the Norwegian Sea, the Iceland Sea, the East Greenland Current): 68, 70, 71, 73, 75, 79, 84, 88, 91, 94, 95 Section 66 N (the Norwegian Sea): 101, 103, 108, 111, 114, 123 Section Station M-Faeroe (the Norwegian Sea): 129, 131, 132, 133, 134. Iceland-Faeroe: 139, 141, 142, 144, 145, 146 Faeroe Bank Channel: 149 Faeroe-Shetland: 153, 154, 155, 157, 158, 159 I-129 samples collected by LOYDC (J.-C. Gascard) Iodine 129 (I129) is a powerful tracer for improving our understanding of the general circulation in the North Atlantic subpolar gyre and the Arctic Ocean (pathways and residence time). This is mainly due to several factors. (1) the main sources for this tracer are well known: 2 nuclear wastes reprocessing facilities in Europe, La Hague (France) and Sellafield (UK). The annual discharges from both nuclear reprocessing plants are well known. These discharges have increased drastically during the mid 90s and have levelled since then. (2) our ability using AMS technic to measure very low level of Iodine 129 (ratio I129/I127 = 10-10) from small volume samples (250 cm3). The sampling technic is straightforward and does not need any special care as for sampling gases for instance. The main contribution of our group to the Odden-Knorr joint cruises in the NORDIC SEAS are twofold: A/ on the short term it mainly concerns warm waters of atlantic origin: to estimate the transfer of Iodine 129 from the Norwegian Coastal Current into the North Atlantic Current between 60N and 70N to estimate the amount of Iodine 129 transported northward by the Norwegian Atlantic Current across Knorr section 5 (70N) and Knorr section 6 (66N), west of Norway to estimate the amount of Iodine 129 transported northward by the West Spitsbergen current across Knorr sections 4 and 3 (Fram Strait). to estimate the amount of Iodine 129 transported into the Barents Sea across Knorr section 4 via the Norwegian Coastal Current and via the Atlantic Current entering the Barents Sea south and north of Bear island. to compare these estimations based on samples collected in 2002 from R/V Knorr with similar measurements (400 samples) taken in 2000 during MAIA (Monitoring the Atlantic Inflow towards the Arctic), in light of the large increase of Iodine 129 discharge occuring during mid and late 90s from the 2 main nuclear wastes reprocessing facilities in Europe A publication resulting from measurements collected during MAIA (EU 5th framewrok program) is underway. B/ on the longer term it mainly concerns cold waters of polar (surface) and subpolar (deep) origins: to estimate the transfer of Iodine 129 in the other cold and deep compartments of the North Atlantic Subpolar gyre and in particular via the east Greenland current and via the deep overflows (Denmark Strait- Faeroe-Shetland channel) in the North Atlantic. To compare the situation in 2002 with Iodine 129 concentrations measured in 600 samples taken during previous experiments in cold waters (ESOP 1 1993-1996 ESOP 2 1996- 1999, GINS august 1999) and more recently (250 samples) in the Irminger Sea during the OVIDE program We are expecting a fruitful cooperation with the group based in Uppsala, Sweden as far as Iodine 129 is concerned (PIs: Ala Aldahan and Vassili Alfimov) and also with other groups attending both cruises as far as other tracers (SF6, PIs: M-J. Messias and A. Watson and CFCs) and hydrological parameters (T,S) are concerned. During the Marion Dufresne cruise in august 1999 (GINS program) we already started a cooperation with another swedish group from Goteborg University (PI A. Olsson) and a first publication is underway. The data collected recently in the Irminger sea during the experiment OVIDE on board the french research vessel Thalassa, is a cooperation with a group in Brest (PI: H. Mercier). Preliminary Tritium, He-3, O-18 report (W. Smethie): Preliminary noble gas report (W. Smethie): Preliminary C-13 report (W. Smethie): @O$%&>?AEFlyzby{p 469dfiJnpqD!E!{""#&'''''' 6KHmH  H*KHmH KHmH 6H* 5KHmH  5OJQJ5>*OJQJ0JjOJQJUjOJQJU >*OJQJOJQJG1>?@j@Aklab{|$$1>?@j@Aklab{|    9 : N T Z a b u y   $ % 4 D H L M X d i m n o p    '  c ;$$l t   F ,";$$l t   F ,"   $     9 : N T Z a b u y $$$l t     ,"   $ % 4 D H L M X d i m n o p ޠބ$$l t     ,"$   f$$l t     ,";$$l t   F ,"$;$$l t   F ,"    ' , 0 1 G K ` g h { ތ޼ްp$$l t     ,"$' , 0 1 G K ` g h {      ! " 5 G T X Y i y }   ! 4 8 R a b p t .8<@ARW\`ay c      ! 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Smethie, Jr.8llMicrosoft Word 8.0 @` FMicrosoft Word DocumentNB6WWord.Document.8.UA?,*bO U,,Q2D| ՜.+,D՜.+,D hp|  'an; Preliminary Cruise Report Title 8@ _PID_HLINKS@"d<@ltptpzu1=jxa4nO@0uu˨~gk}ɦ HqTϘuTJ4>.uĔOHzD1:.4Z?d2 Rh+f4`7M t1/w i0`ua Ap#-ԻW/y!ez}` u\sv ~ņ-KSw A*P}A>O>FkT p*uSy8 vTM0UT" ozif\ \6Άzk8}4p'aDGn6<:ֹ/%4絎}hKE ~ Jk/4XW(8 Jfu!}T``v/dOAŋJh_y)%4KcO:u76ďɯW7 06}ArED ֧޻dt&Fv=(Mݗ6]])1(Uu?ѪVcA [(@(NormalCJmH <@< Heading 1$@&>*OJPJQJ<@< Heading 2$@&6OJQJmH H@H Heading 3$<@&5CJOJQJmH@@@ Heading 4 $$@&5OJQJmH <A@<Default Paragraph Font(U@( Hyperlink>*B*>Q@> Body Text 3$OJQJmH nH >B@> Body Text$CJOJQJmH nH 0/@"0List  OJQJmH42@24List 2 6 OJQJmHFE@BFList Continue 2 6x OJQJmH>P@R> Body Text 2$KHOJQJmH LC@bLBody Text Indent $KHOJQJmH >Or> Normal-PL $CJOJQJnH !!!!!!!!! ! ! ! ! !!!!!s D  (`16 <BOM]v_/a}h{:  b   1>?@j@Aklab{|9:NTZabuy "&'?DIMN]mquv078KUY]^ly~  *078EJOSTejost   ( - 1 2 B j n r s   ! . 2 G N O a h l p q    & 9 = A B C D V W X Y     C D L "8:;<MNs0 e"##'$)$"%V&Z([(\(((((,,--C3D3g3h366X8Y8u8v8: < <<<z>{>I??>@@AABBBBBBBFHALBLCLOLPLPP-P.P&WY;]<]M]N];_<_>_u_v_x_5`6`8`9`.a/a1a2aaaa b b bWbXbcceeee`fafff i!mprEuFu~uuyVzWzmznzz{{{{a|||}}I}}}~~~Leڂۂ@A :nևׇ<==JKGHIJuvwx!!!!!!!!!!!!!!!!!!!!! !!!!       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De Hullu Robert Aller Michelle Roos David AubreyRobinsonBOLDIZSA Jerome GAYOLHERNAN G. CHAMORRO SAUCEDOMELFAO MacfarlanefoobarAPC 1686PC2437GntherIAEAPC730K.H.TamkhtTLNgHKOkhtamSO(R)5cbfungHong Kong Observatory Peter BodeBannerPeer BrretzenLAK-NLH Anna NrenMorten A.K. SickelJoel Jane DavisonI. BarracloughBalsam Al-MadhiThe University of AucklandFRYROBINSON, CarolNENSStephanie Pfirman Jos Kgeler Jos Kgeler Lyn Shaterian Bev Wuerfel John MutterCharles LangmuirKerstin LehnertIRIGeorgiana C. AybarWord Development Marc Nerlove Suzi Kerr Lyn and Dave AREC Dept.Chris William SanchiricoChris Sanchirico Alex Pfaffsanjeev aggarwalDLR Perrin MeyerPaul E Waggonermavis sinkular Iddo WernickForestry and HorticultureAUTHORIZED GATEWAY 2000 USERAuthorized UserPreferred CustomerColumbia Earth InstituteSBVJames E. ColvinAcquisition DivisionProcurement DivisionPhillip R. BarelaStephen A. MitchellBob Martin StuteEarth InstituteCERCUser James BarkerMSRC SedimentologyRebecca Johnson Dale Chayes Amy Shapiro Lisa ShafferRichard S. GreenfieldrgreenfiRoberta JohnsonClifford A. JacobsNickolas J. ThemelisProf. Themelis George FlynnMerrill CorporationTaro TakahashiPool 2#SUBDIRECCION GENERAL DE INFORMATICAGDGPbevCarla J. Moore P. WorstellwwDoug SchnurrenbergerNorman & Janell LovanKRKEmi ItoDepartment of Geography Mark Person D.R. EngstromChenierChantal St-Germain Feng Sheng Hu Jim WrightFellous Joel E. CohenLynLewis E. GilbertViniciusEletrobras-DOEFurnasSergio CanellaGERASUL/DGH/SEPRO Yves Tourre Chris TuckerDaniel SarewitzCIEbarry l. bozemanChristopher Tucker Barry Bozeman Dan SarewitzOSTDCT Tania Martincolumbia universityMargot LansingJoseph Di Dio, IIIJoseph Di Dio, IIIDKRMike MacCrackenUCARShardul Agrawala Tim L. Miller R. FriedlCode Yswoodruf Phil ShanerOSATCODE YAnthony C. 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Smethie, Jr.LMacintosh HD:Knorr 166 XI:prelim. cruise report:Prelim. Cruise rpt. kn166/11William M. Smethie, Jr./Macintosh HD:Temporary Items:Word Work File A 1William M. Smethie, Jr.LMacintosh HD:Knorr 166 XI:prelim. cruise report:Prelim. Cruise rpt. kn166/11William M. Smethie, Jr./Macintosh HD:Temporary Items:Word Work File A 4William M. Smethie, Jr./Macintosh HD:Temporary Items:Word Work File A 4William M. Smethie, Jr.LMacintosh HD:Knorr 166 XI:prelim. cruise report:Prelim. Cruise rpt. kn166/11William M. Smethie, Jr.<Macintosh HD:Temporary Items:AutoRecovery save of Prelim. CrWilliam M. Smethie, Jr.LMacintosh HD:Knorr 166 XI:prelim. cruise report:Prelim. Cruise rpt. kn166/11William M. Smethie, Jr.LMacintosh HD:Knorr 166 XI:prelim. cruise report:Prelim. 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Smethie, Jr. Lamont-Doherty Earth Observatory PO Box 1000 Palisades, New York 10964 Phone: 845-365-8566 Fax: 845-365-8176 e-mail:  HYPERLINK mailto:bsmeth@ldeo.columbia.edu bsmeth@ldeo.columbia.edu Ship: R/V Knorr, Captain Carl Christensen Ports of Call: Reykjavik, Iceland Glasgow, Scotland Dates: 30 May 2002 1 July 2002 Cruise Track: see Figure 1 Sampling and Measurements Overview: A total of 159 CTD/Rosette stations were taken. Vertical profiles of temperature and salinity were measured at each station using the CTD and vertical profiles of current velocity were measured using a lowered ADCP. Vertical profiles of water samples were collected at each station for salinity, oxygen, nutrients, CFCs, Total CO2, alkalinity, and SF6. Samples were also collected at a subset of these stations for tritium, 3He, 18O, 129I, noble gases, and 13C. Underway measurements were made between stations for surface water pCO2 and pH and for current velocity using the hull mounted ADCP. Principle Investigators: InvestigatorParameterAffiliationAla AldahanI-129University of Uppsala SWEDENRichard BellerbyCO2University of Bergen NORWAYSteve EmersonNoble gasesUniversity of Washington USAJean-Claude GascardI-129LOYDC FRANCEMarie-Jose MessiasSF6University of East Anglia UNITED KINGDOMPaul QuayC-13University of Washington USAPeter SchlosserTritium, He-3, O-18LDEO USAWilliam M. Smethie, Jr.CFCsLDEO USAJames H. SwiftCTD-hydrographySIO USADan TorresLADCP, ADCPWHOI USA Cruise Participants: ParticipantDutiesAffiliationVassile AlfimovI-129, Be-10, SF6University of Uppsala SWEDENGeorge C. AndersonNutrientsSIO USAFrank B. BahrLADCP, ADCPWHOI USARichard G.J. BellerbyCO2University of Bergen NORWAYJohn K. CalderwoodOxygenSIO USAAnthony DachilleTritium, He-3, O-18LDEO USASandra De SequeiroSF6, I-129LOYDC FRANCERyan N. GhanCFCsLDEO USAEugene P. GormanCFCsLDEO USAIrina GorodetskaiaCTD - hydrographyLDEO and SIO USAScott M. HillerCTD/Rosette, ETSIO USAMary C. JohnsonCTD data processingSIO USAGuy G. MathieuCFCs, noble gases, C-13LDEO USACarl W. MattsonCTD/Rosette, ET, Technical group leaderSIO USAMarie-Jose MessiasSF6University of East Anglia UNITED KINGDOMBenoit MignonCO2University of Bergen NORWAYDavid A. MuusBottle data processing, Water samplingSIO USAGisle NondalCO2University of Bergen NORWAYRonald G. PatrickOxygenSIO USAErik W. QuirozNutrientsSIO USASarah C. SearsonCFCsLDEO USAWilliam M. Smethie, Jr.Chief ScientistLDEO USAHelen B. SmithSF6University of East Anglia USAJames H. SwiftCo-Chief ScientistSIO USA Cruise narrative: Preliminary CTD report (J. Swift, M. Johnson): Preliminary LADCP and ADCP report (F. Bahr): Preliminary oxygen report (J. Swift, R. Patrick): Preliminary nutrient report (G. Anderson): Preliminary CFC report (W. 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Predicted surface pH decreases will have a deleterious effect on the physiology of some, particularly calcareous, marine organisms and may alter the efficiency of the biological pump due to changing the plankton community structure and its carbon utilisation efficiency. The aim of the CO2 system study is thus multi-faceted: To gather surface pCO2 and pHT data to mo ,Ljbjbۮۮ ȍ]V$.,.,.,.,4b,z gZ8CNCNCNCNC9E>wEE eeeeeee,jleEE"9EEEeSNCNCB-SSSE& NCNCeEeSSZ6e|e,Dz .,PePreliminary Cruise Report Nordic Seas Expedition Knorr 166/11 Chief Scientist: William M. Smethie, Jr. Lamont-Doherty Earth Observatory PO Box 1000 Palisades, New York 10964 Phone: 845-365-8566 Fax: 845-365-8176 e-mail:  HYPERLINK mailto:bsmeth@ldeo.columbia.edu bsmeth@ldeo.columbia.edu Ship: R/V Knorr, Captain Carl Christensen Ports of Call: Reykjavik, Iceland Glasgow, Scotland Dates: 30 May 2002 1 July 2002 Cruise Track: see Figure 1 Sampling and Measurements Overview: A total of 159 CTD/Rosette stations were taken. Vertical profiles of temperature and salinity were measured at each station using the CTD and vertical profiles of current velocity were measured using a lowered ADCP. Vertical profiles of water samples were collected at each station for salinity, oxygen, nutrients, CFCs, Total CO2, alkalinity, and SF6. Samples were also collected at a subset of these stations for tritium, 3He, 18O, 129I, noble gases, and 13C. Underway measurements were made between stations for surface water pCO2 and pH and for current velocity using the hull mounted ADCP. Principle Investigators: InvestigatorParameterAffiliationAla AldahanI-129University of Uppsala SWEDENRichard BellerbyCO2University of Bergen NORWAYSteve EmersonNoble gasesUniversity of Washington USAJean-Claude GascardI-129LOYDC FRANCEMarie-Jose MessiasSF6University of East Anglia UNITED KINGDOMPaul QuayC-13University of Washington USAPeter SchlosserTritium, He-3, O-18LDEO USAWilliam M. Smethie, Jr.CFCsLDEO USAJames H. SwiftCTD-hydrographySIO USADan TorresLADCP, ADCPWHOI USA Cruise Participants: ParticipantDutiesAffiliationVassile AlfimovI-129, Be-10, SF6University of Uppsala SWEDENGeorge C. AndersonNutrientsSIO USAFrank B. BahrLADCP, ADCPWHOI USARichard G.J. BellerbyCO2University of Bergen NORWAYJohn K. CalderwoodOxygenSIO USAAnthony DachilleTritium, He-3, O-18LDEO USASandra De SequeiroSF6, I-129LOYDC FRANCERyan N. GhanCFCsLDEO USAEugene P. GormanCFCsLDEO USAIrina GorodetskaiaCTD - hydrographyLDEO and SIO USAScott M. HillerCTD/Rosette, ETSIO USAMary C. JohnsonCTD data processingSIO USAGuy G. MathieuCFCs, noble gases, C-13LDEO USACarl W. MattsonCTD/Rosette, ET, Technical group leaderSIO USAMarie-Jose MessiasSF6University of East Anglia UNITED KINGDOMBenoit MignonCO2University of Bergen NORWAYDavid A. MuusBottle data processing, Water samplingSIO USAGisle NondalCO2University of Bergen NORWAYRonald G. PatrickOxygenSIO USAErik W. QuirozNutrientsSIO USASarah C. SearsonCFCsLDEO USAWilliam M. Smethie, Jr.Chief ScientistLDEO USAHelen B. SmithSF6University of East Anglia USAJames H. SwiftCo-Chief ScientistSIO USA Cruise narrative: Preliminary CTD report (J. Swift, M. Johnson): Preliminary LADCP and ADCP report (F. Bahr): Preliminary oxygen report (J. Swift, R. Patrick): Preliminary nutrient report (G. Anderson): Preliminary CFC report (W. Smethie): Methods Water 3b:VcqZ4>['/ž=ۻoqv%ֺ#1Ǿ=(pl;]i؁1;c_lñtձ"Z 9LڧGrant RaisbeckI-129CSNSM-ORSAY FRANCEFrancoise YiouI-129CSNSM-ORSAY FRANCELĐҐԐ$&޸$$l t     ,"$ "&6 OJQJmH OJQJ/ =!"#$%0T[2%pŗI;Dl5s(&liI]Fe-`i9x]w|߹{!&Ä&.-(Yx)HbAJj"M *PQ > UEE0yߙn ogO93l&7闠#v'OWrE=.GGbPBG(WYBFtfjH!#h+K/yU\_W2h-τ2v; jb=3)6Gܕޢ6W[bU蟱Xic Zr}\U -UG(g!10;02%`FƷ1|e$`LQa0:J"c1U%`<$c1$`t1Cƛ0:JxRv c0HȖ\Z}  %`q{%`41DFϜcC0Z gP!ثnJXI,3ܦ5"%-µ!!I5ͭ.`3_xxn)RxR*o?0ܧ*P{%-?n~oϛJZiROkT@A:ST:'D{+b‰/+b‰/+ՕԎuÙzb:B`9N|12%`FƷ1ps1AF c)06K8'>I"s ct1Cƛ0:9Ɠ0K8'>}$`dKPFs c,9N|1H"#Gg1psa&JZuvN5_*l{H= j$i5Ui5=82lUNIh1$?)/4dB&ùƚB>Lq$p菐:iC;CQڒ$ c:Ҍ !C?d0ZcXHs\O&ў 2d Obzn";F,D.2hBzFQ[b5Am5/3WИ?C/ց $wC_fҏ ȚL7)Q݆ZVt~@ *gSYdCm 50)uhd2Sȩr8 @n|?h+ﮤ;g6; }%_sOr'U<>wW&}CBFvҗ܅Xhuť'ֽlKmyNz@ۃ*Xc%b!a/ۏ~|삖XvCk \6>,Vf #)A!@D>ncq@ fnX?,qð xȼ$R+?£aEˊQAc|7@*"mg 9+)pYYigEc~ΫeE~ު\ƌ?x6/J-}~rU=fAP!Z(34UX;TlloZ@|?_߿)S 8ZG mˊhen׌sY yvV#Mh2I[Ӛ]P L\ZVĕl1hm GfVeג+Z  K𧫅ok"g`0{_S/{@;!и6TL+f9jG#`iѤ>Z@ǐzh݀J :\L<8R-yS:Bo3s̽&zYv*53!FZk|K'b?sN"3=񀩅>)Z#ymNR %ý 8)O@&yNgC!(:qܨzˎyVDBFZتeVVDڳWUj s5sk-9T13ϳ}ɺo ְɚkK/[دXnSuc] = }kw~Ȫ #ףPzѽ1pb\ҏrIT?ϢjWL-/f,S *+_éo޷y 8}(E#Q{Ѩ_+x"(E$\mncD`,ViXgbx"XBsccb?ì)ngLl4qG_}EkT/&=p,FBFF 5FuFF􍑑&F›0^%G'.gxŇ$A6icSmbŅ ;,60ۭw~QM`&[[ggz\]d~]Zy8{ihTatvqO4O1Q2Oy 5>gk1OYSg*g*LYHk$W] ;x~|E c^8:gyA_"Yx,:cMeLe0NTKp3.#f*qm[4|`㘍crfۙmgv f҉J'6$f+dnfWw#f*2ejf Nl`wby=Yfc$f*0+`f`"f*0a6\fmdٍnb72+eVͬ!f92`#daaVìaf~/#VάY-ZfGa溜 v7-eY:fǘ\^7Vo _XvkwvvqSa?u&g'7`e厰[DӡDnlچ['o{wW{MkVizRժVW~4YVisrkՍyyX5@5@5@5@5@^|6ȿ08f˙-gvf'`F]^lV2l73" B.\ffVϬYYw{!Yg=l}ȿ  m`fr0l.62k`ȿPʬY5jfbF]^l$33f53;̌ȿPάY-ZfGaF]^̖2[ʬYc[V}oX{j߆͵'â*m؜nFvCEȆG]d︚#>3"{?Ì,+"r3Qt*P^X>yZ?/mUٕg`}tegBjZ TT}Nioڭ%Z#TlTBcP  4{_tt?w2(FWomx=@d+CuJK~zdKd'`yݨ^ף޷}1+WwYP7 iEK{bk])FEoCiS4H^\ZVSϨߪ#qR3%{}EhdwdJop_'[sո;WNj,l *&`jcA{BTU*emz(p bAU#f5cA`Jg #Q#nO1ܬ9QURN`&ӝT߲:bV{k%4F }m[}D<@x${(6:qtVJ-c݃/ilQɐ?82`oO6J-$G٘IYѹ + YWDi:b-% nl1SDJ$Մ t9+P:$Y%,#Y 4聟o8QmV)HMjjZ`9 }jRྸB5N;H_86d| ?;Ɏ ٕW ĥiw5'O zS*zɎ͵Hr&;~J~PMЛP_Pdls ~+X71\/]&;faz~tO]Ӥk!}X71J{2Yo˒]Uc3-37bskl&eXznUJRcW:eWZ ]0O<=6O5['/ž=ۻoqv%ֺ#1Ǿ=(pl;]i؁1;c_lñtձ"Z 9Lڧ A total of about 430 samples were collected A total of about 450 samples were collected.