Future temperature and salinity in Puget Sound, Washington State, under CMIP6 climate change scenarios

Walker, Stevie; Mozaria-Luna, Hem Nalini; Kaplan, Isaac; Petatán-Ramírez, David

doi:10.2166/wcc.2022.282

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Future temperature and salinity in Puget Sound, Washington State, under CMIP6 climate change scenarios

2022
By Walker, Stevie ; Mozaria-Luna, Hem Nalini ; Kaplan, Isaac ; ...
Source: Journal of Water and Climate Change, 13(12), 4255-4272

[PDF-965.77 KB]

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Journal Title:

Journal of Water and Climate Change
Personal Author:

Walker, Stevie ; Mozaria-Luna, Hem Nalini ; Kaplan, Isaac ; Petatán-Ramírez, David

Walker, Stevie ; Mozaria-Luna, Hem Nalini ; Kaplan, Isaac ; Petatán-Ramírez, David Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center) Less -
Description:

Climate change will reshape estuarine ecosystems through bottom-up and top-down processes, directly affecting species at all trophic levels. To better understand future regional climate change effects on sea surface temperature and salinity, we used empirical downscaling to derive high-resolution time series of future sea surface temperature and salinity in Puget Sound (Washington State, USA). Downscaling was based on scenario outputs of two coarse-resolution Coupled Model Intercomparison Project Phase 6 (CMIP6) general circulation models, GFDL-CM4 and CNRM-CM6-1-HR. We calculated 30-year climatologies for historical and future simulations, calculated the anomalies between historical and future projections, interpolated to a fine-resolution, and applied these downscaled anomalies to a Regional Ocean Modeling System (ROMS) time series, yielding short-term and long-term delta-downscaled forecasts. Downscaled output for Puget Sound showed temperature and salinity variability between scenarios and models, but overall, there was a strong model agreement of future surface warming and freshening in Puget Sound. Spatially, we found regional differences for both temperature and salinity, including higher temperatures in South Puget Sound and lower salinity in Whidbey Basin. Interpreting and applying downscaled CMIP6 projections of temperature and salinity will help assess climate change vulnerability and inform future ecosystem-based management decisions in Puget Sound and other coastal and estuarine systems.
Keywords:

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Atmospheric Science Global And Planetary Change Management, Monitoring, Policy And Law Water Science And Technology
Source:

Journal of Water and Climate Change, 13(12), 4255-4272
DOI:

https://doi.org/10.2166/wcc.2022.282
ISSN:

2040-2244;2408-9354;
Format:

PDF
Publisher:

IWA Publishing
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by/4.0/
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CC BY
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Main Document Checksum:

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urn:sha256:947c57ed0f93ebfa43befb11ee9a27d3420e7ef62e4e04e3094960a184cba7cb
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https://repository.library.noaa.gov/view/noaa/54968/noaa_54968_DS1.pdf
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Future temperature and salinity in Puget Sound, Washington State, under CMIP6 climate change scenarios

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