00000nam 2200000zi 4500 9.945543 CaOODSP 20250313092941 m o d f cr cn||||||||| 241125t20252025nscbd ob f000 0 eng d 9780660746555 CaOODSP eng rda CaOODSP eng eng fre n-cnm-- Fs97-18/387E-PDF Hardy, Melanie, author. SOPhyE satellite data processing technical report series. 2, Refining the Maritimes AZMP box boundaries using self-organizing maps (SOMs) / by Melanie Hardy, Emmanuel Devred. Refining the Maritimes AZMP box boundaries using self-organizing maps (SOMs) Dartmouth, Nova Scotia : Fisheries and Oceans Canada, Bedford Institute of Oceanography, 2025. ©2025 1 online resource (vii, 16 pages) : maps, graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian technical report of hydrography and ocean sciences, 1488-5417 ; 387 Includes bibliographical references (page 16). "Chlorophyll-a concentration (Chl-a) derived from satellite ocean colour has been used to report on phytoplankton biomass in the Maritimes Atlantic Zone Monitoring Program (AZMP) at five key areas on the Scotian Shelf, namely, Georges Bank (GB), Central Scotian Shelf (CSS), Eastern Scotian Shelf (ESS),Western Scotian Shelf (WSS), and Lurcher Shoals (LS). For practical reasons, the areas were defined as rectangles that did not necessarily account for the effect of local hydrodynamic processes on the distribution of phytoplankton biomass. As a result, variation in Chl-a concentration may not reflect phytoplankton local dynamics but rather changes in water masses that may be amplified by cloud cover. A Self-Organizing Map (SOM) approach was applied to satellite-derived seasonal sea-surface temperature (SST) and Chl-a to identify the main patterns in phytoplankton dynamics on the Scotian Shelf in relation to physical forcing, and to redefine the boundaries of the AZMP Maritime boxes. The updated polygons had similar mean seasonal SST and Chl-a than the original boxes but with reduced variability as supported by smaller interquartile range. The updated polygons did not encroach on coastal areas that exhibit systematically high Chl-a as a result of contamination of the marine satellite signal by terrigenous inputs. Comparisons of the bloom metrics between the original boxes and the new SOM-derived polygons showed less extreme values in bloom characteristics for the SOM-derived polygons"--Abstract, page vi. Includes abstracts in English and French. Self-organizing maps. Ocean color Atlantic Coast (Canada) Remote sensing Data processing. Ocean color North Atlantic Ocean Remote sensing Data processing. Artificial satellites in oceanography North Atlantic Ocean. Artificial satellites in oceanography Atlantic Coast (Canada) Plankton blooms Atlantic Coast (Canada) Remote sensing Data processing. Plankton blooms North Atlantic Ocean Remote sensing Data processing. Cartes auto-organisatrices. Mer Couleur Atlantique, Côte de l' (Canada) Télédétection Informatique. Mer Couleur Atlantique Nord Télédétection Informatique. Satellites artificiels en océanographie Atlantique Nord. Satellites artificiels en océanographie Atlantique, Côte de l' (Canada) Poussées phytoplanctoniques Atlantique, Côte de l' (Canada) Télédétection Informatique. Poussées phytoplanctoniques Atlantique Nord Télédétection Informatique. Canada. Department of Fisheries and Oceans, issuing body. Bedford Institute of Oceanography, issuing body. Canadian technical report of hydrography and ocean sciences, 1488-5417 ; 387. (CaOODSP)9.504781 PDF 2.12 MB https://publications.gc.ca/collections/collection_2025/mpo-dfo/Fs97-18-387-eng.pdf