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Publication . Article . 2016

Technical note: Algal Pigment Index 2 in the Atlantic off the southwest Iberian Peninsula: standard and regional algorithms

Priscila Goela; Sónia Cristina; Tamito Kajiyama; John Icely; Gerald Moore; Bruno Fragoso; Alice Newton;
Open Access
English
Published: 01 Dec 2016
Publisher: European Geosciences Union
Abstract

Abstract. In this study, Algal Pigment Index 2 (API2) is investigated in Sagres, an area located in the Atlantic off the southwestern Iberian Peninsula. Standard results provided by the MEdium Resolution Image Spectrometer (MERIS) ocean colour sensor were compared with alternative data products, determined through a regional inversion scheme, using both MERIS and in situ remote sensing reflectances (Rrs) as input data. The reference quantity for performance assessment is in situ total chlorophyll a (TChl a) concentration estimated through a phytoplankton absorption coefficient (i.e. equivalent to API2). Additional comparison of data products has also been addressed for TChl a concentration determined by high-performance liquid chromatography. The MERIS matchup analysis revealed a systematic underestimation of TChl a, which was confirmed with an independent comparison of product map analysis. The study demonstrates the importance of regional algorithms for the study area that could complement upcoming standard results of the current Sentinel-3/OLCI space mission.

Subjects by Vocabulary

Library of Congress Subject Headings: lcsh:Geography. Anthropology. Recreation lcsh:G lcsh:Environmental sciences lcsh:GE1-350

Microsoft Academic Graph classification: Remote sensing Spectrometer Ocean colour Technical note Medium resolution Algal pigment Peninsula geography.geographical_feature_category geography Phytoplankton absorption Environmental science Algorithm Data products

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EC| AQUA-USERS
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AQUA-USERS: AQUAculture USEr driven operational Remote Sensing information services
  • Funder: European Commission (EC)
  • Project Code: 607325
  • Funding stream: FP7 | SP1 | SPA
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EC| DEVOTES
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DEVOTES
DEVelopment Of innovative Tools for understanding marine biodiversity and assessing good Environmental Status
  • Funder: European Commission (EC)
  • Project Code: 308392
  • Funding stream: FP7 | SP1 | ENV
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FCT| SFRH/BD/78356/2011
Project
SFRH/BD/78356/2011
ASSINATURA ESPECTRAL DAS COMUNIDADES FITOPLANCTÓNICAS NA COSTA SUDOESTE DE PORTUGAL: IMPACTO NOS DADOS DE DETECÇÃO REMOTA
  • Funder: Fundação para a Ciência e a Tecnologia, I.P. (FCT)
  • Project Code: SFRH/BD/78356/2011
  • Funding stream: OE
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EC| AquaSpace
Project
AquaSpace
Ecosystem Approach to making Space for Aquaculture
  • Funder: European Commission (EC)
  • Project Code: 633476
  • Funding stream: H2020 | RIA
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Related to Research communities
European Marine Science Marine Environmental Science : DEVelopment Of innovative Tools for understanding marine biodiversity and assessing good Environmental Status
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