[Submission]: Bottom temperature - Seasonal Gridded

[jcaracappa1]

Primary Contact

joseph.caracappa@noaa.gov

Secondary Contact

No response

Data Name (This will be the displayed title in Catalog)

Bottom temperature - Seasonal Gridded

Indicator Name (as exists in ecodata)

bottom_temp_model_gridded

Family (Which group is this indicator associated with?)

• [X] Oceanographic
• [ ] Habitat
• [ ] Lower trophic levels
• [ ] Megafauna
• [ ] Social
• [ ] Economic

Data Description

Seasonal mean bottom temperatures on the Northeast Continental Shelf between 1959 and 2024 in a 1/12° grid.

Introduction to Indicator (Please explain your indicator)

The bottom temperature product is in a horizontal 1/12 degree grid between 1959 and 2024 and is made of daily bottom temperature estimates from:

Bias-corrected ROMS-NWA between 1959 and 1992 which was regridded in the same 1/12degree grid as GLORYS using bilinear interpolation; Years 1993 through fall 2024 are from CMEMS GLORYS12V1 global reanalysis bottom temperature.

Key Results and Visualization

Maps of seasonal mean bottom temperature across NE shelf.

Implications

Bottom temperature is a key environmental parameter in defining the habitat and metabolic conditions of demersal and benthic species. Interannual and seasonal changes in bottom temperature can provide significant indicators of species productivity, spatial distributions, or mortality. Long-term trends in bottom temperature are indicators of regional implications of global climate change and may be used in evaluating climate risk for fisheries management.

Spatial Scale

Whole shelf

Temporal Scale

Winter (Jan-Mar), Spring (April-June), Summer (July-Sept), Fall (Oct - Dec) from 1959-2024

Synthesis Theme

• [X] Multiple System Drivers
• [ ] Regime Shifts
• [ ] Ecosystem Reorganization

Define Variables

• Time: year
• Lat: latitude
• Lon: longitude
• Variable: season
• Value: bottom temperature (degrees Celcius)

Indicator Category

• [X] Published Methods
• [ ] Extensive analysis, not yet published
• [X] Syntheses of published information
• [ ] Database pull
• [X] Database pull with analysis
• [ ] Other

If other, please specify indicator category

No response

Data Contributors

Joseph Caracappa, Hubert du Pontavice, Vincent Saba, Zhuomin Chen

Point(s) of Contact

joseph.caracappa@noaa.gov

Affiliation

NEFSC

Public Availability

Source data are publicly available.

Accessibility and Constraints

No response

[jcaracappa1]

updated catalogue to disambiguate with other bottom temp products