NSSDCA ID: ESAC-00023
Availability: Data Accessible Elsewhere
Time span: 1978-10-31 to 1990-06-21
This experimenter-supplied ozone data set is written in IBM 3081 binary format onto magnetic tape. The data set is a condensed version of the High Density Backscattered Ultraviolet ozone tapes (HDSBUV; NSSDC ID 78-098A-09D). Measured radiances (W/cu cm/AU), absorption coefficients in units of (atm-cm)-1 with base e, and instrument calibration for 13 instrument wavelengths (255.5 to 343.3 nm) are contained in the header record. Data records contain: 1) earth-located total ozone (in Dobson units, with and without IR cloud height information), 2) reflectivity measured mainly by the 339.8-nm channel, 3) ozone mixing ratios (microgram/g), and 4) layer ozone amounts (in Dobson units). The mixing ratios are given at 19 pressure levels: 0.3, 0.4, 0.5, 0.7, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 7.0, 10, 15, 20, 30, 40, 50, 70, and 100 mbar. The layer ozone amounts are given for 12 layers: 0-0.24, 0.24-0.49, 0.49-0.99, 0.99-1.98, 1.98-3.96, 3.96-7.92, 7.92-15.8, 15.8-31.7, 31.7-63.3, 63.3-127, 127-253, and 253-1013 mbar. There is also solar zenith angle information, a data quality flag, and a volcano contamination index. Designed to be the most convenient SBUV product for investigators, each CPOZ tape normally covers 1 yr of data. The data set was replaced in July 1992 for the period 10/31/78 to 2/12/87. The version 6 reprocessing of SBUV data utilized an internal calibration technique and an a prior SAGE II dataset for profile inversion. Data for the period 2/13/87 to 6/21/90 became available in 1993, after instrument non-sync problems were corrected. These data, however, have a different quality than those from before 2/13/87, and should be used with cautions.
This data set was transferred to the Goddard DAAC in January 1995.
Questions and comments about this data collection can be directed to: Coordinated Request and User Support Office
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Albert J. Fleig, Jr. | General Contact | NASA Goddard Space Flight Center | afleig@ltpsun.gsfc.nasa.gov |