CBIOMES Provinces Working Group

Contact: Chris Follett

The Provinces Working Group is a cross-institutional collaboration that grew out of discussions at the 2019 Annual Meeting. Drawing together CBIOMES investigators with expertise in statistical methods, physical and biogeochemical modeling, and remote sensing, the group is exploring questions concerned with spatial and temporal controls on marine phytoplankton distributions observed in nature and in models.

Current work has focused around defining a simplified, gridded, monthly climatology to explore methods for comparing models and observations utilizing provinces. Group members have used this data-set to test methods for objectively defining provinces (Christian Müller, Flatiron; Thomas Jackson, PML); used previously defined ‘Longhurst Provinces’ to compare model-data distributionally (Bror Jönsson, PML); and are developing transport methods to optimally partition deviations into quantity, space, and time components (Sangwon Hyun, Jacob Bien; USC). Additional comparisons have been done focused on temporal shifts (Marie-Fanny Racault, PML).

Moving forward, group members are keen to utilize objectively defined provinces and their boundaries to test the mechanisms which control the location and time-evolution of ecosystems and the biogeochemical cycles they control.

In January 2023, working group members and others came together for a three-day in-person meeting CBIOMES Workshop on Transects and Eco-Provinces seeking to advance efforts to link transect and spatial provinces data.

Publications:

Bror F. Jönsson, Christopher L. Follett, Jacob Bien, Stephanie Dutkiewicz, Sangwon Hyun, Gemma Kulk, Gael L. Forget, Christian Müller, Marie-Fanny Racault, Christopher N. Hill, Thomas Jackson, and Shubha Sathyendranath (2023), Using Probability Density Functions to Evaluate Models (PDFEM, v1.0) to compare a biogeochemical model with satellite-derived chlorophyll, Geoscientific Model Development, doi: 10.5194/gmd-16-4639-2023

Sangwon Hyun, Aditya Mishra, Christopher L. Follett, Bror Jonsson, Gemma Kulk, Gael Forget, Marie-Fanny Racault, Thomas Jackson, Stephanie Dutkiewicz, Christian L. Müller and Jacob Bien (2022), Ocean mover’s distance: using optimal transport for analysing oceanographic dataProceedings of the Royal Society A, doi: 10.1098/rspa.2021.0875

Christopher L. Follett, Stephanie Dutkiewicz, Gael Forget, B.B. Cael, Michael J. Follows (2021), Moving ecological and biogeochemical transitions across the North PacificLimnology and Oceanography, doi: 10.1002/lno.11763

(CBIOMES investigators highlighted in bold)

Explore Related Media

GitHub Page for matched Model-Data Climatology

CMAP Link for Full DARWIN Climatology (CBIOMES-Global)

Moving Ecological and Biogeochemical Transitions Across the North Pacific – SCOPE 2020 Annual Meeting Microtalk (login required)

2019 Annual Meeting Plenary: Defining Provinces (login required)