NASA NOBM Project: Global Ocean Biogeochemical Model Data

Assimilated daily and monthly data from NASA's Ocean Biogeochemical Model (NOBM). The model simulates ocean biogeochemistry, including 4 phytoplankton groups, 4 nutrient groups, herbivores, detrital pools, and carbon components like DOC and DIC. It covers open ocean areas from -84 to 72 degrees latitude at a 1.25° longitude by 2/3° latitude resolution.

Use Cases

• Modeling global ocean carbon flux based on simulated dissolved organic and inorganic carbon components.
• Analyzing phytoplankton group distributions and interactions based on the four modeled functional types.
• Studying nutrient cycling in open ocean ecosystems based on the four included nutrient groups.
• Validating satellite-derived ocean color data with assimilated model outputs for biogeochemical parameters.

Strengths

• Model includes multiple interacting components: 4 phytoplankton groups, 4 nutrient groups, a herbivore group, and 3 detrital pools.
• Covers a defined global spatial domain for open ocean areas where bottom depth exceeds 200 meters.
• Provides data at both daily (NOBM_DAY) and monthly (NOBM_MON) temporal resolutions.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total dataset size are unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

NASA Global Modeling and Assimilation Office (GMAO)

Collection Method

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

Time Range

null

Freshness

null

Geography

Global oceans, from -84 to 72 degrees latitude, excluding areas where bottom depth is ≤ 200m.