NAMMA COBALT Carbon Monoxide Profiles From Airborne Laser Spectrometry

NAMMA Carbon mOnoxide By Attenuated Laser Transmission (COBALT) provides in-situ measurements of carbon monoxide mixing ratios and vertical profiles in the upper troposphere and lower stratosphere. The dataset was generated by NASA's Global Hydrology Resource Center Distributed Active Archive Center (GHRC DAAC) during the 2006 African Monsoon Multidisciplinary Analyses (NAMMA) field campaign based in the Cape Verde Islands. It captures data on African Easterly Waves and Mesoscale Convective Systems to assess their impacts on regional water and energy budgets.

Use Cases

• Analyzing carbon monoxide transport in African Easterly Waves (AEWs) using mixing ratio profiles.
• Studying the impact of Mesoscale Convective Systems on upper tropospheric chemistry via in-situ spectrometer data.
• Validating satellite retrievals of carbon monoxide with high-resolution airborne measurements from the NAMMA campaign.
• Investigating regional water and energy budget impacts through correlated trace gas and meteorological observations.

Strengths

• Data originates from a NASA-sponsored field campaign (NAMMA) using an in-situ laser absorption spectrometer, indicating high instrument fidelity.
• Cross-platform presence on NASA Earthdata and Data.gov signals importance and validation for atmospheric research.
• Provides derived vertical profiles of carbon monoxide mixing ratios, offering structured atmospheric data.

Limitations

• Specific row counts, column names, and dataset size are unknown across all sources, limiting precise assessment of scope.
• Sources conflict on the last updated date, with one listing 2006-09-12 and others listing 2026-03-12, creating uncertainty about maintenance.

Provenance

Source

NASA Global Hydrology Resource Center Distributed Active Archive Center (GHRC_DAAC).

Collection Method

In-situ measurements collected via laser absorption spectrometer aboard aircraft during the NAMMA field campaign.

Time Range

August 2006 onward.

Freshness

2026-03-12 23:32:57.673619

Geography

Cape Verde Islands and continental western Africa, focusing on the upper troposphere and lower stratosphere.