Accession Number ADA583683
Title Flux of Nutrients Between the Middle and Southern Adriatic Sea (Gargano- Split section).
Publication Date Apr 2013
Media Count 15p
Personal Author A. Campanelli E. Paschini F. Grilli J. W. Book M. Marini
Abstract The transect Gargano-Split at the borderline between the middle and southern Adriatic on the Palagru a Sill is exposed to the influences both from the northern and southern Adriatic and is a main transition point for the Adriatic. During the Dynamic of the Adriatic in Real Time (DART) project, 12 bottom-mounted Acoustic Doppler Current Profilers (ADCPs) were deployed from November 2005 to September 2006 along the Gargano-Split section. During the same period four different oceanographic cruises were carried out (in November 2005, March, April and July 2006). Hydrographic stations were sampled with the CTD/Rosette to measure physical (temperature, salinity and density) and chemical (oxygen, orthosilicate, orthophosphate and nitrite+nitrate) parameters. The orthosilicate flux across the transect for inflow and for outflow was higher (except for March) than the nitrite + nitrate and the orthophosphate fluxes. The outflowing nutrient fluxes in the Western Adriatic Current (WAC) were much lower than the total nutrient flux outflow as a large portion of the nutrient flux towards the southern Adriatic was carried by other outflowing waters including North Adriatic Dense Water (NAdDW) flowing along the Italian bottom slope and Middle Adriatic Dense Water (MAdDW) flowing through the deepest passage in the center of the Sill. The July survey provided the first opportunity for direct measurements of total nutrient fluxes across a full basin transect of the central Adriatic. The measurements suggest that the nutrient import and nutrient export were roughly in balance. Modified Levantine Intermediate Water (MLIW) significantly contributed to a total nutrient influx across the transect that was strong enough to counter-balance the nutrient export by the WAC, NAdDW, MAdDW, and other sources.
Keywords Adcp(Acoustic doppler current profilers)
Adriatic sea
Current fields
Dart(Dynamic of the adriatic in real time)
Doppler systems
Flux(Rate)
Mliw(Modified levantine intermediate water)
Nutrient fluxes
Nutrients
Ocean currents
Salinity
Sea water
Thermohaline fields73-9858-a2-5
Velocity
Velocity fields
Wac(Western adriatic current). maddw(Middle adriatic dense w
Water masses
Water transport


 
Source Agency Non Paid ADAS
NTIS Subject Category 47D - Biological Oceanography
47C - Physical & Chemical Oceanography
48G - Hydrology & Limnology
Corporate Author Naval Research Lab., Stennis Space Center, MS. Ocean Sciences Branch.
Document Type Journal article
Title Note Journal article.
NTIS Issue Number 1402
Contract Number N/A

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