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Validation problems for remotely sensed sea surface temperature

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Il Nuovo Cimento C

Summary

A linear algorithm developed for the split window technique was tested using high-quality in situ data obtained during the ADRIA-84 campaign. All the problems related to the validation process have been considered in detail: screening of the data, their preparation, their matching in space and time. The sea surface temperature derived from AVHRR-2 data, when compared with the corresponding in situ measured temperature, showed a standard deviation of 0.2K, after the removal of a bias of 0.1K.

Riassunto

Un algoritmo lineare sviluppato per calcolare la temperatura della superficie del mare con il metodo della finestra tagliata è stato provato con misure precise rilevatein situ durante la campagna ADRIA-84. Tutti i problemi relativi al procedimento di collaudo dell'algoritmo sono stati dettagliatamente esaminati: la selezione dei dati, la loro preparazione e la loro corrispondenza spaziale e temporale. Il confronto tra la temperatura della superficie del mare ottenuta con i dati del radiometro AVHRR-2 e quella corrispondente ottenuta in situ mostra una deviazione standard di 0.2K dopo la rimozione di una differenza sistematica di 0.1K.

Резюме

Проверяется линейный алгоритм, развитый для техники окна расшепления, используя данные, полученные во время кампании ADRIA-84. Подробно рассматриваются проблемы достоверности: экранирование данных, их приготовление, их согласование в пространстве и во времени. Температуры поверхности моря, полученные из данных AVHRR-2, при сравнении с соответствующими измерениями температуры на месте, обнаруживают стандартное отклонение 0.2 К, после удаления смещения 0.1 К.

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Authors and Affiliations

  1. Istituto di Fisica dell'Atmosfera del C.N.R., P. le L. Sturzo 31, 00144, Roma

    G. Dalu & G. L. Liberti

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  1. G. Dalu
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  2. G. L. Liberti
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Dalu, G., Liberti, G.L. Validation problems for remotely sensed sea surface temperature. Il Nuovo Cimento C 11, 589–607 (1988). https://doi.org/10.1007/BF02507003

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  • DOI: https://doi.org/10.1007/BF02507003

PACS 92.60

PACS 92.10

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