Arabian Sea Bio-Optical Data for PACE Satellite Validation

Data from 2024-2025 cruises provides high-resolution bio-optical and biogeochemical measurements for the Arabian Sea. This dataset is collected through Indo-US collaboration led by the OB_DAAC and partners for validating NASA's PACE OCI satellite products. It focuses on a region undergoing significant ecosystem shifts, including phytoplankton transitions to Noctiluca blooms.

Use Cases

• Validating hyperspectral ocean color products from the PACE OCI satellite using in-situ bio-optical measurements.
• Analyzing phytoplankton community transitions, such as diatom to Noctiluca scintillans dominance, over a two-decade period.
• Studying the impact of monsoon cycles and climate change on Arabian Sea biogeochemistry and optics.
• Calibrating satellite-derived estimates of ocean temperature, salinity, and ocean chemistry with cruise-based discrete samples.

Strengths

• Targets a highly under-sampled region, providing rare in-situ data for the optically data-sparse Arabian Sea.
• Supports validation of advanced satellite products with high-resolution, sub-pixel scale measurements from planned cruises.
• Involves a long-term collaborative effort between US (NASA/ONR) and Indian (ISRO/MoES) scientific organizations.

Limitations

• Specific column names, row counts, and dataset size are not provided by any source.
• Sources conflict on license details: one specifies 'other-license-specified', while another lists 'None'.
• The exact temporal coverage is limited to planned cruises in 2024 and 2025, with no historical data confirmed.

Provenance

Source

OB_DAAC, with collaboration from Space Applications Centre (ISRO, India) and the Office of Naval Research.

Collection Method

Collection via continuous underway and discrete sampling during research cruises in the Arabian Sea.

Time Range

2024-2025

Freshness

2026-03-13 14:31:22.392070

Geography

Arabian Sea