NOAA KLM User's Guide Section 9.7.1.1

Introduction Page, NOAA KLM TOC, Acronyms,
Previous Section, Next Section

---

9.7.1.1 Overview

The 1b data set contains:

(1) All SBUV/2 sensor data (except boost mode data [first several minutes after launch]; data with unreasonable year, day or time of day; and data within an orbit that is not time ascending) and support data necessary for the derivation of atmospheric ozone and solar flux;

(2) Instrument in-flight calibration data and housekeeping functions for monitoring post-launch instrument changes; and

(3) Prelaunch calibration factors, and computed current-day instrument calibration and albedo correction factors to adjust the ozone algorithm for actual instrument performance. Initially, only prelaunch calibration adjustments will be made until the Instrument Support Subsystem is implemented.

The SBUV/2 sensor data consists of radiance and irradiance measurements taken in both the discrete mode (12 wavelengths) and the sweepmode (1680 wavelengths) at approximately 2 Angstrom (Å ) intervals. The support data includes earth location data derived from predictive ephemeris, cloud and temperature from TOVS, ancillary data to initialize the algorithm, surface pressure data, and (to be added at a later date) snow/ice data.