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This document outlines proposals made during the ESIP Summer Meeting 2012 regarding extensions to satellite data standards, focusing on spectral bands and data quality. Key proposals include defining spectral bands as dimensions rather than coordinate variables, pre-defining band names according to wavelength and frequency, and introducing data quality modifiers such as "percent_cloud_free." Additionally, it addresses Level-specific considerations for satellite data and the need for new standard names to ensure compatibility with the NetCDF library.
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CF extensions for satellite data ESIP Summer Meeting 2012
Possible extensions circa Winter 2011 • 1. Spectral bands • Define as dimension rather than coordinate variable • Pre-define band names • Pre-define by wavelength/frequency range • Proposal by Tom Whittaker • 2. Data quality • Modifiers such as "percent_cloud_free" • 3. Level 3-specific • Local/solar time • 4. Level 2-specific • Orbital parameters/swath geometry • 5. Level 1-specific • Calibration tables/engineering parameters
Whittaker proposal for spectral bands • Create two coordinate axis types ("wavelength" and "wavenumber") that can be recognized by the NetCDF library as defining a "spectral coordinate". • Similar to time dimension variable • New standard names also needed • center_wavelength, or wavelength • center_wavenumber, or wavenumber
