Seasonal Salinification of the US Northeast Continental Shelf Cold Pool Driven by Imbalance between Cross-Shelf Fluxes and Vertical Mixing: Code and Data

Code and Data to reproduce results of the accompanying publication: Taenzer, L.L., Chen, K., Plueddemann, A., & Gawarkiewicz, G. (2025 accepted). Seasonal Salinification of the US Northeast Continental Shelf Cold Pool Driven by Imbalance between Cross-Shelf Fluxes and Vertical Mixing. Journal of Geophysical Research: Oceans.

Contact: Lukas Taenzer ([e-mail])

Code:

1] ColdPoolSali_MeanAdvectionOffline.m

Task: Computes mean advection fluxes for salinity flux budget as outlined in section 2.3 of accompanying manuscript

Input: NESS model output from Chen et al. (2022)

2] ColdPoolSali_ControlVolumeAvg.m

Task: Computes budget flux terms, averaged across a cold pool control volume outlined in section 2.3 of accompanying manuscript 

Input: Mean advection fluxes produced by "ColdPoolSali_MeanAdvectionOffline.m" + NESS model data from Chen et al. (2022)

Output: "ColdPoolSalinityBudget_Fluxes_v1.mat" (provided in folder "Data")

3] ColdPoolSali_CrossShelfTransect.m

Task: Provide NESS-model output along a meridional cross-shelfbreak transect along 70.875°W on an equidistant time-depth-latitude grid

Input: NESS model data from Chen et al. (2022)

Output: "ColdPoolCrossSection_Fields_v1.mat" (provided in folder "Data")

4] ColdPoolSali_MakeFigures_v3.m

Task: Reproduce Figures of accompanying manuscript 

Input: 

OOI Coastal Pioneer hydrography data files (doi: 10.26025/1912/66379):

OOIcp_CTD_ISSM_stat.nc

OOIcp_CTD_PMUI_prof.nc

OOI Coastal Pioneer PMCI ADCP velocity data (provided in folder "Data")

ColdPoolCrossSection_Fields_v1.mat (provided in folder "Data")

ColdPoolSalinityBudget_Fluxes_v1.mat (provided in folder "Data")

Output: 

Figures 2, 4, 5, 6, 7, 8, 9, 10, 11, S1, S2, and S3 of accompanying manuscript. 

Code has been written in MATLAB R2023a.

Results rely on the following two datasets:

Observations from the OOI Coastal Pioneer Array: Taenzer, L.L., Gawarkiewicz, G., and Plueddemann, A. (2023). Gridded Hydrography and Bulk Air-Sea interactions observed by the Ocean Observatories Initiative (OOI) Coastal Pioneer New England Shelf Mooring Array (2015-2022) (1.0.0). [Dataset] WHOAS Woods Hole Open Access Server. doi: 10.26025/1912/66379

Required as input for code "ColdPoolSali_MakeFigures_v3.m"

Required for reproducing Figures 2, 4, 5a, S1 of accompanying publication

High-resolution NorthEast Shelf and Slope (NESS) regional model output described in Chen, K., Gawarkiewicz, G., & Yang, J. (2022). Mesoscale and Submesoscale Shelf-Ocean Exchanges Initialize an Advective Marine Heatwave. Journal of Geophysical Research: Oceans, 127 (1). doi: 10.1029/2021JC017927794

Required as input for code "ColdPoolSali_MeanAdvectionOffline.m" and "ColdPoolSali_ControlVolumeAvg.m" 

Provided datasets in folder "Data"

ColdPoolCrossSection_Fields_v1.mat

Output of code "ColdPoolSali_MakeFigures_v3.m"

Required for reproducing Figures 5b, 9, 10, S1, S2, and S3

ColdPoolSalinityBudget_Fluxes_v1.mat

Output of code "ColdPoolSali_ControlVolumeAvg.m"

Required for reproducing Figures 6, 7, 8, and 11 of accompanying publication

OOIcp_ADCP_PMCI.mat

Gridded ADCP velocity record from OOI Coastal Pioneer Inshore Central Profiler Mooring (PMCI)

Required for reproducing Figure S2