author = "Valente, Andr{\'e} and Sathyendranath, Shubha and Brotas, Vanda 
                         and Groom, Steve and Grant, Michael and Taberner, Malcolm and 
                         Antoine, David and Arnone, Robert and Balch, William M. and 
                         Barker, Kathryn and Barlow, Ray and B{\'e}langer, Simon and 
                         Berthon, Jean-Fran{\c{c}}ois and Besiktepe, S{\"u}kr{\"u} and 
                         Borsheim, Yngve and Bracher, Astrid and Brando, Vittorio and 
                         Canuti, Elisabetta and Chavez, Francisco and Cianca, Andr{\'e}s 
                         and Claustre, Herv{\'e} and Clementson, Lesley and Crout, Richard 
                         and Frouin, Robert and Garc{\'{\i}}a-Soto, Carlos and Gibb, 
                         Stuart W. and Gould, Richard and Hooker, Stanford B. and Kahru, 
                         Mati and Kampel, Milton and Klein, Holger and Kratzer, Susanne and 
                         Kudela, Raphael and Ledesma, Jesus and Loisel, Hubert and Matrai, 
                         Patricia and McKee, David and Mitchell, Brian G. and Moisan, 
                         Tiffany and Muller-Karger, Frank and ODowd, Leonie and Ondrusek, 
                         Michael and Platt, Trevor and Poulton, Alex J. and Repecaud, 
                         Michel and Schroeder, Thomas and Smyth, Timothy and Smythe-Wright, 
                         Denise and Sosik, Heidi M. and Twardowski, Michael and Vellucci, 
                         Vincenzo and Voss, Kenneth and Werdell, Jeremy and Wernand, Marcel 
                         and Wright, Simon and Zibordi, Giuseppe",
          affiliation = "{Universidade de Lisboa} and {Plymouth Marine Laboratory} and 
                         {Universidade de Lisboa} and {Plymouth Marine Laboratory} and 
                         {Plymouth Marine Laboratory} and EUMETSAT and {Sorbonne 
                         Universit{\'e}} and {University of Southern Mississippi} and 
                         {Bigelow Laboratory for Ocean Sciences} and {ARGANS Ltd} and 
                         {Bayworld Centre for Research and Education} and {Universit{\'e} 
                         du Qu{\'e}bec {\`a} Rimouski} and European Commission, Joint 
                         Research Centre and {Dokuz Eylul University} and {Institute of 
                         Marine Research} and {Alfred Wegener Institute Helmholtz Centre 
                         for Polar and Marine Research} and {CSIRO Oceans and Atmosphere} 
                         and European Commission, Joint Research Centre and {Monterey Bay 
                         Aquarium Research Institute} and {PLOCAN  Oceanic Platform of the 
                         Canary Islands} and {Sorbonne Universit{\'e}} and {CSIRO Oceans 
                         and Atmosphere} and {Naval Research Laboratory} and {University of 
                         California San Diego} and {Spanish Institute of Oceanography 
                         (IEO)} and {University of the Highlands and Islands} and {Naval 
                         Research Laboratory} and {NASA Goddard Space Flight Center} and 
                         {University of California San Diego} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Federal Maritime and Hydrographic 
                         Agency} and {Stockholm University} and {University of California 
                         Santa Cruz} and {Instituto del Mar del Per{\'u}} and 
                         {Universit{\'e} du Littoral-C{\^o}te-dOpale} and {Bigelow 
                         Laboratory for Ocean Sciences} and {University of Strathclyde} and 
                         {University of California San Diego} and {NASA Goddard Space 
                         Flight Center} and {University of South Florida} and Fisheries and 
                         Ecosystem Advisory Services, Marine Institute and 
                         NOAA/NESDIS/STAR/SOCD and {Plymouth Marine Laboratory} and 
                         {Heriot-Watt University} and {9IFREMER Centre de Brest} and {CSIRO 
                         Oceans and Atmosphere} and {Plymouth Marine Laboratory} and 
                         {National Oceanography Centre} and Biology Department, Woods Hole 
                         Oceanographic Institution and {Harbor Branch Oceanographic 
                         Institute} and {Sorbonne Universit{\'e}} and {University of 
                         Miami} and {NASA Goddard Space Flight Center} and {Royal 
                         Netherlands Institute for Sea Research} and {Australian Antarctic 
                         Division and the Antarctic Climate and Ecosystems Cooperative 
                         Research Centre} and European Commission, Joint Research Centre",
                title = "A compilation of global bio-optical in situ data for ocean-colour 
                         satellite applications - version two",
              journal = "Earth System Science Data",
                 year = "2019",
               volume = "11",
               number = "3",
                pages = "1037--1068",
                month = "July",
             abstract = "A global compilation of in situ data is useful to evaluate the 
                         quality of ocean-colour satellite data records. Here we describe 
                         the data compiled for the validation of the ocean-colour products 
                         from the ESA Ocean Colour Climate Change Initiative (OC-CCI). The 
                         data were acquired from several sources (including, inter alia, 
                         HOT and GeP\&CO) and span the period from 1997 to 2018. 
                         Observations of the following variables were compiled: spectral 
                         remote-sensing reflectances, concentrations of chlorophyll a, 
                         spectral inherent optical properties, spectral diffuse attenuation 
                         coefficients and total suspended matter. The data were from 
                         multi-project archives acquired via open internet services or from 
                         individual projects, acquired directly from data providers. 
                         Methodologies were implemented for homogenization, quality control 
                         and merging of all data. No changes were made to the original 
                         data, other than averaging of observations that were close in time 
                         and space, elimination of some points after quality control and 
                         conversion to a standard format. The final result is a merged 
                         table designed for validation of satellite-derived ocean-colour 
                         products and available in text format. Metadata of each in situ 
                         measurement (original source, cruise or experiment, principal 
                         investigator) was propagated throughout the work and made 
                         available in the final table. By making the metadata available, 
                         provenance is better documented, and it is also possible to 
                         analyse each set of data separately. This paper also describes the 
                         changes that were made to the compilation in relation to the 
                         previous version (Valente et al., 2016). The compiled data are 
                         available at 
                         (Valente et al., 2019).",
                  doi = "10.5194/essd-11-1037-2019",
                  url = "http://dx.doi.org/10.5194/essd-11-1037-2019",
                 issn = "1866-3508 and 1866-3516",
             language = "en",
           targetfile = "valente_compilation.pdf",
        urlaccessdate = "27 jan. 2021"