A high-resolution ocean bottom temperature product for the northeast U.S. continental shelf marine ecosystem

du Pontavice, H.; Chen, Z.; Saba, V.S.

doi:10.1016/j.pocean.2022.102948

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A high-resolution ocean bottom temperature product for the northeast U.S. continental shelf marine ecosystem

2023
By du Pontavice, H. ; Chen, Z. ; Saba, V.S.
Source: Progress in Oceanography 210 (2023) 102948

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Journal Title:

Progress in Oceanography
Personal Author:

du Pontavice, H. ; Chen, Z. ; Saba, V.S.

du Pontavice, H. ; Chen, Z. ; Saba, V.S. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory) ; CIMES (Cooperative Institute for Modeling the Earth System)

OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory) ; CIMES (Cooperative Institute for Modeling the Earth System) Less -
Description:

The northeast U.S. continental shelf is a highly productive and socio-economically important marine ecosystem in which annual and seasonal variations of bottom temperature play a major role in the distribution, phenology, and productivity of its predominately demersal marine taxa. However, bottom temperature measurements are limited spatially and temporally and thus do not provide the required resolution to assess sub-seasonal variability and trends. Here we combined three ocean products, a regional ocean model (ROMS) and two global ocean data assimilated models (GLORYS12v1 and PSY4V3R1) to build a high-resolution, long-term bottom temperature product for the northeast U.S. continental shelf between 1959 and 2021. We bias-corrected ROMS using monthly decadal climatologies from ocean observations and analyzed long-term changes in the combined time series. Model skill was assessed using a large number of in situ observations. The combined bottom temperature product showed a long-term warming of the northeast U.S. continental shelf of + 0.36 °C decade-1 over the past 63 years, with notable variations among seasons and regions. The strongest long-term warming occurred during the summer months and in the Gulf of Maine. Although biases were observed, the bottom temperature product exhibited good performance reproducing seasonal and annual variability in observed temperature. This high-resolution product could be used in a wide range of applications from local to regional spatial scales, from long-term to near-term time scales, and from fisheries to marine ecology.
Keywords:

[+]

Continental Shelf Marine Ecology Ocean Bottom Ocean Temperature
Source:

Progress in Oceanography 210 (2023) 102948
DOI:

https://doi.org/10.1016/j.pocean.2022.102948
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PDF
Document Type:

Journal Article
Funding:

Grant no. NA18OAR4320123
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Accepted Manuscript
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Submitted
Main Document Checksum:

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urn:sha256:d797e4f2602f01ac8a899e46bca99ac2012992fca8c53e92e67738dadf6bcb87
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https://repository.library.noaa.gov/view/noaa/50645/noaa_50645_DS1.pdf
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A high-resolution ocean bottom temperature product for the northeast U.S. continental shelf marine ecosystem

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