NOBM_DAY: Global Daily Ocean Biogeochemical Model Data Assimilating Satellite Chlorophyll

Global open ocean data from the NASA Ocean Biogeochemical Model (NOBM), which assimilates satellite chlorophyll observations. The model spans from -84 to 72 degrees latitude at a 1.25 by 2/3-degree resolution and simulates four phytoplankton groups, nutrients, herbivores, and carbon components. This assimilated daily product is provided by NASA's Goddard Earth Sciences Data and Information Services Center (GES DISC).

Use Cases

• Modeling phytoplankton group distributions based on the four simulated groups.
• Analyzing global nutrient cycles based on the four nutrient groups included.
• Studying ocean carbon sequestration based on dissolved organic and inorganic carbon (DOC and DIC) components.
• Validating satellite-derived ocean color products using assimilated chlorophyll data.

Strengths

• Data is assimilated with satellite chlorophyll observations, likely improving realism.
• Model includes multiple interacting components: 4 phytoplankton groups, 4 nutrient groups, a herbivore group, and 3 detrital pools.
• Covers a defined global open ocean domain where bottom depth exceeds 200 meters.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Output from the NASA Ocean Biogeochemical Model (NOBM), which is coupled with circulation and radiative models and assimilates satellite data.

Time Range

Daily temporal resolution is indicated, but the specific date range is not provided.

Freshness

Last updated 2026-03-12 23:55:48.390436; freshness should be verified.

Geography

Global open oceans from -84 to 72 degrees latitude, excluding shallow coastal areas (bottom depth > 200m).