NASA's Aura satellite provides vertical profile estimates of nitric acid (HNO3) in the atmosphere, along with associated error matrices and retrieval diagnostics. The data includes retrieved surface temperature, cloud optical depth, column estimates, quality flags, averaging kernels, and a priori constraints. This Level 2 product was created by the LARC_CLOUD organization and last updated in April 2005.
Use Cases
- Validate and improve atmospheric chemistry models based on vertical profile estimates.
- Study stratospheric ozone depletion processes based on nitric acid concentration data.
- Assess retrieval algorithm performance based on provided averaging kernels and a priori constraints.
- Analyze cloud interference in trace gas measurements based on cloud effective optical depth data.
- Perform uncertainty quantification in satellite retrievals based on provided error covariance matrices.
Strengths
- Includes comprehensive retrieval diagnostics such as averaging kernels and a priori constraint vectors.
- Provides detailed error characterization with diagonal errors and full covariance matrices.
- Data originates from the NASA Aura satellite, a trusted source for atmospheric composition measurements.
Limitations
- Last updated 2005-04-10 11:14:13.619000; freshness should be verified for contemporary studies.
- 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
- NASA Earthdata (LARC_CLOUD organization)
- Collection Method
- Satellite remote sensing via the Tropospheric Emission Spectrometer (TES) on the Aura spacecraft.
- Time Range
- null
- Freshness
- Last updated 2005-04-10 11:14:13.619000
- Geography
- Global, from satellite orbit.