Insights into the year-round vertical distribution of chlorophyll concentration in high-latitude Arctic Ocean
Implications for primary production
Bibliographic Data
| ID | 15546455 |
|---|---|
| Authors | Jisoo Park (0000-0002-3865-083X, Korea Polar Research Institute, corresponding author), Eunho Ko (0009-0000-7037-3353, Korea Polar Research Institute, corresponding author), Kyoung‐Ho Cho (0000-0001-5527-5851, Korea Polar Research Institute, corresponding author), Jinyoung Jung (0000-0003-0284-1519, Korea Polar Research Institute, corresponding author), Youngju Lee (0000-0003-1653-4085, Naval Postgraduate School, corresponding author), Jaeill Yoo (Korea Polar Research Institute, corresponding author), Jong Kuk Moon (Korea Polar Research Institute, corresponding author), Chorom Shim (0009-0004-0762-6214, Korea Polar Research Institute, corresponding author), Younjoo Lee (0000-0002-2869-9680, Naval Postgraduate School, corresponding author), Robert Osiński (0000-0001-8698-0799, Instytut Oceanologii Polskiej Akademii Nauk, corresponding author), Eun Jin Yang (0000-0002-8639-5968, Korea Polar Research Institute, corresponding author) |
| Year | 2025 |
| Volume | 20 |
| Issue | 10 |
| Pages | 104005-104005 |
| Publication date | 2025-08-14 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/adfb90 |
| OpenAlex | W4413382654 |
| Language | EN |
| References cited | 35 |
Climate-induced rapid changes in the Arctic Ocean, such as decreasing sea ice extent and increasing water temperature, are altering nutrient and light availability, profoundly impacting primary producer growth. However, access to the high-latitude Arctic Ocean is limited, and satellite data are primarily available only during summer, making continuous in-situ data collection challenging. We collected year-round chlorophyll-a (Chl-a) concentration data in high-latitude regions using a mooring system and performed a comparative analysis with reanalysis data. Unlike previous satellite-based studies, which typically rely on surface measurements, we used the annual vertical distribution of Chl-a. These data were applied to the vertically generalized production model to accurately estimate annual primary production. The moored Chl-a concentration data showed that phytoplankton exhibited a typical subsurface chlorophyll maximum (SCM) layer as sea ice retreated in June. Contrary to the gradually deepening SCM distribution predicted by model-based reanalysis data, the SCM layer persisted for approximately 4 months. This indicates that light and nutrient conditions within the SCM layer remained stable, sustaining continuous phytoplankton growth. Annual primary production, reflecting this vertical distribution of Chl-a concentration, was 6.85 gC m −2 yr −1 . This exceeded satellite-based estimates by at least two-fold, highlighting the significant underestimation of primary production by satellite approaches. Estimating primary production while accounting for the vertical distribution of phytoplankton and light is essential for improving ecological models to better understand carbon cycle and food web changes in the Arctic Ocean, with important implications for climate change predictions
Arctic · Atmospheric sciences · Biology · Chlorophyll a · Climatology · Distribution (mathematics · Geodesy · High latitude · Latitude · Physics · Primary (astronomy · Production (economics · The arctic · Arctic and Antarctic ice dynamics · Atmospheric and Environmental Gas Dynamics · Environmental Science · Mathematics · Methane Hydrates and Related Phenomena · Geology · Oceanography
| Highly cited | No |
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