FN Archimer Export Format PT J TI Circulation effects on nitrogen dynamics in the Ionian Sea BT AF CIVITARESE, G CRISE, A CRISPI, G MOSETTI, R AS 1:;2:;3:;4:; FF 1:;2:;3:;4:; C1 OSSERV GEOFIS SPERIMENTALE TRIESTE, I-34016 TRIESTE, ITALY C2 OSSERV GEOFIS SPERIMENTALE TRIESTE, I-34016 TRIESTE, ITALY IF 0.662 TC 14 UR https://archimer.ifremer.fr/doc/00096/20729/18366.pdf LA English DT Article DE ;Ionian Sea;nitrogen cycle;general circulation;ecomodel;primary production AB In this work the description of the interaction between the general circulation and the nitrogen cycle in the Ionian Sea is considered. Firstly, an analysis is made of nitrate data collected during POEM-BC cruises in October 1991 and April 1992; then a numerical experiment based on a coupled hydrodynamic ecomodel is presented. The model results relative to the periods corresponding to the cruises are discussed. The ecomodel is climatological and represents an aggregated description of the nitrogen cycle in terms of inorganic nitrogen, phytoplankton and detritus. The numerical results as nitrogen distributions, fluxes and primary production are presented. A strong dependence of nitrogen distribution on circulation emerges both from the observational data and from model simulations giving similar results in the upwelling areas and in the opposite effects of cyclonic and anticyclonic gyres. On a smaller scale, the experimental data present a more energetic structure than that obtained by the climatological model, suggesting the need for future development. PY 1996 SO Oceanologica Acta SN 0399-1784 PU Gauthier-Villars VL 19 IS 6 UT A1996VU43500003 BP 609 EP 622 ID 20729 ER EF