Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Comparison between remote-sensed data and in situ measurements in coastal waters: the Taranto sea case |
| Abstract | Monitoring and managing small coastal ecosystems requires a considerable understanding of the temporal dynamics of biophysical factors describing the coastal water systems. For this reason, daily observation from space could be a very efficient tool. The objective of the work described in this paper is to evaluate the contribution of remote sensing to the continuous monitoring of coastal areas. It is well known that in coastal areas, the presence of inorganic suspended sediments and coloured dissolved organic matter can make chlorophyll-concentration measurements from remote sensing difficult. To overcome these difficulties, an alternative approach to the SeaWiFS standard chlorophyll algorithm is presented, based on a semi-analytic model for sea water and on the use of MODIS data as input in a model for atmospheric effects removal. Moreover, land contamination (mixed sea-land pixels) can introduce ambiguities in sea-surface temperature measurements from remote sensing. This paper proposes the use of a hydrodynamic model as a time-space interpolator of in situ campaign data, to extensively validate the temperature values extracted from AVHRR sensor. We validated the proposed approach, using experimental field data collected over a two-year campaign in the Taranto Gulf. The results seem to indicate a good agreement between remote-sensed and in situ data. |
| Source | Chemistry in ecology (Print) 20 (3), pp. 225–237 |
| Journal | Chemistry in ecology (Print) |
| Editor | Gordon and Breach Science Publishers., New York, Stati Uniti d'America |
| Year | 2004 |
| Type | Articolo in rivista |
| DOI | 10.1080/02757540410001689795 |
| Authors | R. Matarrese; V. De Pasquale; L. Guerriero; A. Morea; G. Pasquariello; G. Umgiesser; I. Scroccaro; G. Alabiso |
| Text | 180263 2004 10.1080/02757540410001689795 Comparison between remote sensed data and in situ measurements in coastal waters the Taranto sea case R. Matarrese; V. De Pasquale; L. Guerriero; A. Morea; G. Pasquariello; G. Umgiesser; I. Scroccaro; G. Alabiso CNR, Univarsita di Bari Monitoring and managing small coastal ecosystems requires a considerable understanding of the temporal dynamics of biophysical factors describing the coastal water systems. For this reason, daily observation from space could be a very efficient tool. The objective of the work described in this paper is to evaluate the contribution of remote sensing to the continuous monitoring of coastal areas. It is well known that in coastal areas, the presence of inorganic suspended sediments and coloured dissolved organic matter can make chlorophyll concentration measurements from remote sensing difficult. To overcome these difficulties, an alternative approach to the SeaWiFS standard chlorophyll algorithm is presented, based on a semi analytic model for sea water and on the use of MODIS data as input in a model for atmospheric effects removal. Moreover, land contamination mixed sea land pixels can introduce ambiguities in sea surface temperature measurements from remote sensing. This paper proposes the use of a hydrodynamic model as a time space interpolator of in situ campaign data, to extensively validate the temperature values extracted from AVHRR sensor. We validated the proposed approach, using experimental field data collected over a two year campaign in the Taranto Gulf. The results seem to indicate a good agreement between remote sensed and in situ data. 20 Comparison between remote sensed data and in situ measurements in coastal waters Chemistry_and_Ecology_2007.pdf Articolo in rivista Gordon and Breach Science Publishers. 0275 7540 Chemistry in ecology Print Chemistry in ecology Print Chem. ecol. Print Chemistry in ecology. Print Chemistry and ecology Print georg.umgiesser UMGIESSER GEORG giorgio.alabiso ALABISO GIORGIO guido.pasquariello PASQUARIELLO GUIDO |