(OAD) Document for Ozone Mapping and Profiler Suite ... - NASA

OAD – OMPS TC EDR D37031
Rev C5
Page 4
2.0 OPERATIONAL ALGORITHM DESCRIPTION
The OMPS TC ozone algorithm is based on the Total Ozone Mapping Spectrometer (TOMS)
Version 7 algorithm. This algorithm is similar in concept to previous versions of the algorithm,
but contains a number of enhancements that improve the treatment of surface reflectivity,
clouds, profile mixing, and high solar zenith angles. The OMPS total ozone EDR is computed
after the Sensor Data Record (SDR) and Intermediate Product process is done. This
processing relationship is illustrated in Figure 1 below.
Figure 1: Processing Chain Associated with the OMPS TC Ozone EDR
The OMPS total ozone EDR benefits from true multi-spectral capability and significant
compatibility with the heritage TOMS sensor and algorithm. The OMPS Charge Coupled
Device (CCD) combined with the push broom sensor design allows simultaneous measurement
of all 35 fields of regard (FOR) across the swath.
2.1 OMPS Total Column Ozone EDR Description
2.1.1 Interfaces
The OMPS Total Column (TC) EDR algorithm is initiated by the Infrastructure (INF) Software
Item (SI) to begin processing data. INF SI provides tasking information to the algorithm
indicating which granule to process. DMS SI provides data storage and retrieval capability. A
library of C++ classes is used to implement the SI interfaces. More information regarding these
topics is found in document UG60917-IDP-026 with reference in particular to sections regarding