Accession Number : ADA138257

Title :   Comparisons of Sea-Surface Temperature Obtained from Ship and Satellite Data.

Descriptive Note : Technical memo.,


Personal Author(s) : Hamilton,L J

PDF Url : ADA138257

Report Date : Oct 1983

Pagination or Media Count : 57

Abstract : Sea-surface-temperatures (SST) obtained by thermosalinograph on five cruises during the period 23 September 1982 to 30 January 1983 in waters east and north-east of the Australian coastline are compared graphically with SST obtained from three sources of satellite data, GOSSTCOMP charts (Global Operational Sea Surface Temperature Computation), NWS charts (National Weather Service), and GMS (Geostationary Meteorological Satellite) tables. The data is plotted as temperatures versus cumulative ship distance travelled. For these cruises, fronts and features were seldom discernible in the satellite data but broad scale average trends were well shown. GOSSTCOMP was found to be the most reliable temperature indicator, often closely following the graph of highly smoothed ship temperature. NWS often tended to follow peak temperatures while GMS often overestimated SST by more than 3 C. Estimates are given on the usefulness of absolute values of satellite SST in real-time analyses.

Descriptors :   *Oceanographic data, *Surface temperature, Ocean surface, Comparison, Patterns, Indicators, Data acquisition, Sea based, Shipboard, Artificial satellites, Space based, Australia, Coastal regions, Fronts(Oceanography), South Pacific Ocean, Peak values, Estimates, Algorithms, Accuracy

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE