edu.ucar.opensky::articles:26777 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T19:01:49.546693 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7td9z4h https://doi.org/10.1594/PANGAEA.915466 https Related Dataset #1 Model output of organic binding of iron and biological productivity from REcoM2 with a pH/DOC parameterisation of organic complexation https://doi.org/10.48670/MOI-00149 https Related Dataset #2 GLOBAL OCEAN GRIDDED L4 SEA SURFACE HEIGHTS AND DERIVED VARIABLES NRT https://doi.org/10.5065/MGB4-CD43 https Related Dataset #3 CESM2 and CESM1 data supporting Long et al. (2021): Simulations with the Marine Biogeochemistry Library https://doi.org/10.5067/AQUA/MODIS/L3M/PIC/2022 https Related Dataset #4 Aqua MODIS Level 3 Mapped Particulate Inorganic Carbon Data, Version R2022.0 https://doi.org/10.6075/J0MC905G https Related Dataset #5 SOCCOM float data - Snapshot 2022-05-19. In Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) Float Data ArchiveSouthern Ocean Carbon and Climate Observations and Modeling (SOCCOM) Float Data Archive Environmental drivers of coccolithophore growth in the Pacific sector of the Southern Ocean 2023-11-09T00:00:00Z publication https://n2t.org/ark:/85065/d7td9z4h https://doi.org/10.1029/2023GB007751 Oliver, H. author McGillicuddy, D. J. author Krumhardt, Kristen author Long, Matthew author Bates, N. R. author Bowler, B. C. author Drapeau, D. T. author Balch, W. M. author UCAR/NCAR - Library publisher The Great Calcite Belt (GCB) is a band of high concentrations of suspended particulate inorganic carbon (PIC) spanning the subantarctic Southern Ocean and plays an important role in the global carbon cycle. The key limiting factors controlling coccolithophore growth supporting this high PIC have not yet been well-characterized in the remote Pacific sector, the lowest PIC but largest area of the GCB. Here, we present in situ physical and biogeochemical measurements along 150 degrees W from January to February 2021, where a coccolithophore bloom occurred. In both months, PIC was elevated in the Subantarctic Zone (SAZ), where nitrate was >1 mu M and temperatures were similar to 13 degrees C in January and similar to 14 degrees C in February, consistent with conditions previously associated with optimal coccolithophore growth potential. The highest PIC was associated with a relatively narrow temperature range that increased about 1 degrees C between occupations. A fresher water mass had been transported to the 150 degrees W meridian between occupations, and altimetry-informed Lagrangian backtracking estimates show that most of this water was likely transported from the southeast within the SAZ. Applying the observations in a coccolithophore growth model for both January and February, we show that the similar to 1.7 degrees C increase in temperature can explain the rise in PIC between occupations. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2023 American Geophysical Union (AGU). None eng geoscientificInformation