Data and reproducibility package for regional assessment and recalibration of daily Level-3 satellite chlorophyll-a products in the Bransfield Strait, Antarctica
Year: 2026
Type: dataset
Abstract: This record contains the data, analytical outputs, figures, tables, validation logs, documentation and reproducible Python workflow supporting the study “Regional assessment and recalibration of daily Level-3 satellite chlorophyll-a products in the Bransfield Strait, Antarctica”. The study evaluates daily Level-3 mapped chlorophyll-a products from MODIS-Aqua, VIIRS-SNPP and OLCI/Sentinel-3A/B against 196 surface in situ chlorophyll-a observations collected during Peruvian Antarctic campaigns in 2018, 2019, 2020 and 2024. Satellite–in situ match-ups were evaluated using ±1, ±2 and ±3 calendar-day windows, with ±2 days retained as the primary analytical condition. Regional product-specific log-linear recalibration models were assessed using leave-one-year-out cross-validation. The reproducibility package includes the quality-controlled observational data authorised for publication, detailed satellite–in situ match-ups, LOYO predictions, final recalibration models, uncertainty and sensitivity analyses, spatial-error analyses, main and supplementary tables, publication-quality figures, Python scripts, processing logs, validation checks, software-environment information and SHA-256 manifests. The primary ±2-day dataset contains 272 product-specific match-ups: 90 for MODIS-Aqua, 103 for VIIRS-SNPP and 79 for OLCI/Sentinel-3A/B. The analytical envelope covers 63.858–60.155°S and 62.224–53.232°W. The equations are regional empirical bias-correction models and should not be extrapolated beyond the observed satellite chlorophyll-a ranges or to other product versions, seasons or regions without independent validation. Satellite Level-3 products themselves are not redistributed in this record; file identifiers and traceability information are provided so that the source products can be retrieved from NASA OB.DAAC. Release: v1.3Primary temporal window: ±2 calendar daysCoordinate reference: WGS 84 (EPSG:4326)
Language: English
Subfield: Oceanography
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7204085301