The NASA OBPG routinely downloads V3 data from the AERONET-Ocean Color website for use in satellite sensor validation match-up analysis. As described by Zibordi et al. (2009), the AERONET-OC network consists of globally distributed autonomous radiometer systems maintained at fixed offshore sites. Please refer to the rest of the information in this article for details on how to acknowledge the use of AERONET-OC data and how the OBPG processes these data.
Table of Contents
AERONET-OC data have a usage policy stated on the web sites for the individual AERONET-OC stations (linked below). Please consult the following links, however at the time this Wiki article was written, the summary of the AERONET-OC policy is:
Due to the research and development phase characterizing AERONET Ocean Color, use of these data requires offering co-authorship to the Principal Investigator. If you intend to use the following data please consult with the Principal Investigator(s) of the particular AERONET-OC site.
Information about the AERONET-OC source used within SeaBASS can be derived from the "cruise" or cruise_name metadata label that SeaBASS picked and applied to results returned in the Validation Search results (cruise is synonymous with deployment). AERONET-OC site names were incorporated into the cruise name using the form:
aoc_[v#][l#]_[site-name]
for example, "aoc_v4l20_AAOT"
Please visit the following individual AERONET-OC web pages and view the contact information for the Principal Investigator(s) at each site.
AAOT(45.3N, 12.5E) [Venice, Italy] |
Abu_Al_Bukhoosh(25.5N, 53.1E) [Abu Al Bukhoosh] |
ARIAKE_TOWER(33.1N, 130.3E) [Ariake, Japan] |
Bahia_Blanca(39.1S, 61.7W) [Bahia Blanca, Argentina] |
Banana_River(28.4N, 80.6W) [Coco Beach, FL] |
Blyth_NOAH(55.1N, 1.4W) [Blyth, Englad] |
Casablanca_Platform(40.7N, 1.4E) | Chesapeake_Bay(39.1N, 76.3W) [Annapolis, MD] |
COVE_SEAPRISM(36.9N, 75.7W) [Cove, Virginia] |
Galata_Platform(43.0N, 28.2E) [Bulgaria] |
Gloria(44.6N, 29.4E) [Constanta, Romania] |
GOT_Seaprism(9.3N, 101.4E) |
Grizzly_Bay(38.1N, 122.1W) [Grizzly Bay, CA] |
Gustav_Dalen_Tower(58.6N, 17.5E) [Gustav Dalen Lighthouse] |
Helsinki_Lighthouse(59.9N, 24.9E) [Helsinki Lighthouse, Finland] |
Ieodo_Station(32.1N, 125.2E) [Ieodo, Korea] |
Irbe_Lighthouse(57.8N, 21.7E) [Irbe Lighthouse, Baltic Sea] |
Kemigawa_Offshore(35.6N, 140.0E) [Kemigawa offshore, Japan] |
Lake_Erie(41.8N, 83.2W) [Monroe, MI] |
Lake_Okeechobee(26.9N, 80.8W) [Fort Pierce, FL] |
Lake_Okeechobee_N(27.1N, 80.8W) [Lake Okeechobee, FL] |
LISCO(41.0N, 73.3W) [LISCO, New York] |
Lucinda(18.5S, 146.4E) [Lucinda, Australia] |
MVCO(41.3N, 70.6W) [Martha's Vineyard Coastal Observatory (MVCO), Massachusetts] |
Palgrunden(58.8N, 13.2E) [Granvik, Sweden] |
PLOCAN_Tower(28.0N, 15.4W) [Canary Islands, Spain] |
RdP-EsNM(34.8S, 57.9W) [Beunos Aires, Argentina] |
Sacramento_River(38.0N, 121.9W) [Sacramento, CA] |
San_Marco_Platform(2.9S, 40.2E) | Section-7_Platform(44.5N, 29.4E) [Constanta, Romania] |
Socheongcho(37.4N, 124.7E) [Socheongcho, Republic of Korea] |
South_Greenbay(44.6N, 88.0W) [Green Bay, WI] |
Thornton_C-power(51.5N, 3.0E) [Brussels, Belgium] |
USC_SEAPRISM(33.6N, 118.1W) [Newport Beach, CA] |
Venise(45.3N, 12.5E) [Venice, Italy] |
WaveCIS_Site_CSI_6(28.9N, 90.5W) [Gulf of Mexico] |
Zeebrugge-MOW1(51.4N, 3.1E) [Brussels, Belgium] |
SeaBASS labels data in the Validation Search results with a cruise or cruise_name (a metadata field synonymous with deployment name). AERONET-OC site names were incorporated into the cruise name using the form:
aoc_[site-name]_l##
for example, "aoc_Venise_l20"
Please visit the following individual AERONET-OC pages and the contact information for the Principal Investigator(s) at each site.
The following description applies to how AERONET-OC V2 sites were organized in SeaBASS. This description no longer applies to V3 data but is retained here as a reference.
A column called "cruise_name" is present in the data files you can download after performing a Validation Search. These names have been specially created by SeaBASS staff to include certain identifying information. These names all use the following structure:
aoc_[site-name]_l##_YYYYMM
Cruise names contain descriptions that correspond to the following site names which are linked to the individual AERONET-OC sites with the contact information for the PI(s) at each site.
Cruise name in SeaBASS | AERONET-OC site | Principal Investigator(s) |
bukhoosh | Abu_Al_Bukhoosh (25N,53E) | Giuseppe Zibordi |
cove | COVE_SEAPRISM (36N,75W) | Brent Holben |
gageocho | Gageocho_Station (33N,124E) | Jae-Seol Shim, Joo-Hyung Ryu |
galata | Galata_Platform (43N,28E) | Giuseppe Zibordi |
gloria | Gloria (44N,29E) | Giuseppe Zibordi |
got | GOT_Seaprism (9N,101E) | Brent Holben |
gustav | Gustav_Dalen_Tower (58N,17E) | Giuseppe Zibordi |
helsinki | Helsinki_Lighthouse (59N,24E) | Giuseppe Zibordi |
leodo | Ieodo_Station (32N,125E) | Young-Je Park,Hak-Yeol You |
kaust | KAUST_Campus (22N,39E) | Georgiy L. Stenchikov |
lake_erie | Lake_Erie (41N,83W) | Tim Moore, Steve Ruberg, Menghua Wang |
lisco | LISCO (40N,73W) | Sam Ahmed, Alex Gilerson |
lucinda | Lucinda (18S,146E) | Thomas Schroeder |
mvco | MVCO (41N,70W) | Hui Feng, Heidi M. Sosik |
palgrunden | Palgrunden (58N,13E) | Susanne Kratzer |
socheongch | Socheongcho (37N,125E) | Young-Je_Park |
thornton_c | Thornton_C-power (51N,2E) | Dimitry Van der Zande |
usc | USC_SEAPRISM (33N,118W) | Burton Jones, Curtiss Davis |
usc_2 |
USC_SEAPRISM_2 (33N,118W) | Brent Holben |
venise |
Venise (45N,12E) | Giuseppe Zibordi |
usc | WaveCIS_Site_CSI_6 (28N,90W) | Alan Weidemann, Bill Gibson, Robert Arnone |
zeebrugge | Zeebrugge-MOW1 (51N,3E) | Kevin Ruddick, Dimitry Van der Zande |
The OBPG uses normalized water leaving radiances (Lwn) downloaded from the AERONET-OC website. Remote Sensing Reflectance (Rrs) is calculated by dividing Lwn by the solar constant, a BRDF correction calculated by the OBPG is applied (for consistency with the satellite approach), and then validation is performed on those values as described by Bailey and Werdell (2006).
Bailey, S.W. and Werdell, P.J. (2006). A multi-sensor approach for the on-orbit validation of ocean color satellite data products. Rem. Sens. Environ. 102, 12-23.
Frouin, R., Lingner, D. W., Gautier, C., Baker, K. S., and Smith, R. C. (1989). A Simple Analytical Formula to Computer Clear Sky Total and Photosynthetically Available Solar Irradiance at the Ocean Surface. J. of Geophysical Res., Vol. 94, No. C7, 9731-9742.