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HOAPS - A new satellite-derived freshwater flux climatology

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Abstract:

HOAPS (Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data) is a global climatology of sea surface parameters and surface energy and freshwater uxes derived from satellite radiances for the time period July 1987 to December 1998. Data from polar orbiting radiometers, the Special Sensor Microwave/Imager (SSM/I) and the Advanced Very High Resolution Radiometer (AVHRR), have been used to get global fields of surface meteorological and oceanographic parameters but also latent heat flux, evaporation, precipitation and net freshwater flux over ice free ocean areas for various averaging periods and grid sizes. All retrieval methods have been validated with in situ data on a global scale to the extent possible. In this paper some of the major outcomes are exemplarily shown together with the results of comparison studies with the in situ climatology provided by the Southampton Oceanography Centre (SOC).

HOAPS (Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data) ist eine globale Klimatologie ozeanographischer und meteorologischer Parameter sowie von Energie- und Süßwasserüssen an der Meeresoberäche, die für den Zeitraum Juli 1987-Dezember 1998 aus Satellitenmessungen gewonnen wurden. Daten von Sensoren polarumlaufender Satelliten, nämlich des Special Sensor Microwave/Imager (SSM/I) und des Advanced Very High Resolution Radiometer (AVHRR), wurden genutzt, um globale Felder dieser ozeanographischen und meteorologischen Parameter, aber auch des latenten Wärmeusses, der Verdunstung, des Niederschlags und des Süsswasserusses über dem eisfreien Ozean in unterschiedlichen räumlichen und zeitlichen Auösungen abzuleiten. Soweit möglich wurden alle dabei genutzten Fernerkundungsverfahren mit in situ Daten auf einer globalen Skala verglichen. In diesem Artikel werden die wichtigsten Ergebnisse beispielhaft vorgestellt und gemeinsam mit den Resultaten aus Vergleichsstudien mit der in-situ Klimatologie des Southampton Oceanography Centre (SOC) diskutiert.

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Document Type: Research Article

DOI: http://dx.doi.org/10.1127/0941-2948/2002/0011-0061

Publication date: January 1, 2002

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  • Meteorologische Zeitschrift (originally founded in 1866) is the joint periodical of the meteorological societies of Austria, Germany and Switzerland. It accepts high-quality peer-reviewed manuscripts on all aspects of observational, theoretical and computational research out of the entire field of meteorology, including climatology. Meteorologische Zeitschrift represents a natural forum for the meteorological community of Central Europe and worldwide.
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