Principal Investigator: Anne M. Thompson (Penn State University)
Archiver/Webmaster: Jacquelyn Witte

In recent years a number of methods have been developed for estimating tropical tropospheric ozone (TTO) from satellites. Several are based on TOMS (Total Ozone Mapping Spectrometer) instruments. However, there is not a consistent verification data set from balloon-borne ozonesondes.

A number of stations are operating in the southern hemisphere tropics and subtropics, but with differing frequency and reporting procedures. SHADOZ (Southern Hemisphere ADditional OZonesondes) is designed to remedy this data discrepancy, by coordinating launches, supplying additional sondes in some cases, and by providing a central archive location. Data will be collected in a timely manner and will be available through this website to the SHADOZ and TOMS Science Teams, as well as to the scientific community as a whole.

Currently, twelve active sites are participating in SHADOZ. The sites are at Ascension Island; American Samoa; Fiji; Irene, South Africa; Java, Indonesia; Malindi and Nairobi, Kenya; Natal, Brazil; Paramaribo, Surinam; La Réunion, France; San Cristóbal, Galapagos; and Kuala Lumpur, Malaysia.

To have access to the ozonesonde data click on THE DATA ARCHIVE under the SHADOZ Contents. Note that not all the sites will contain up-to-date data.

Data Disclaimer:

The data on this website is preliminary: subject to revision and reprocessing. Check dates of creation to download the most current version. Contact the co-investigators for questions concerning data techniques and quality.