Cape Verde Ocean Observatory
This observatory is composed of a mooring and a small vessel maintaining the time-series continuity at Tropical Eastern North Atlantic.

Infrastructure Location
Study Area
Location | 17° 36.468' N; -24° 15.276' E | ||
---|---|---|---|
Distance from Land | 110 km | ||
Max Depth | 3603 m | ||
Oceanographic features of area | Located downwind of the Mauritanian upwelling, the Observatory provide unique information linking biological productivity and atmospheric composition. The location is critical for climate and greenhouse gas studies and for investigating dust impacts on marine ecosystems | ||
Relevant publications isi journals | Dammshäuser, A. and Croot, P. (2012) Low colloidal associations of aluminium and titanium in surface waters of the tropical Atlantic Geochimica et Cosmochimica Acta, 96 . pp. 304-318. DOI 10.1016/j.gca.2012.07.032.
[img] Fiedler, B., Fietzek, P., Vieira, N., Silva, P., Bittig, H. C. and Körtzinger, A. (2013) In situ CO2 and O2 measurements on a profiling float Journal of Atmospheric and Oceanic Technology, 30 . pp. 112-126. DOI 10.1175/JTECH-D-12-00043.1. [img] Hanel, R., John, H. C., Meyer-Klaeden, O. and Piatkowski, U. (2010) Larval fish abundance, composition and distribution at Senghor Seamount (Cape Verde Islands) Journal of Plankton Research, 32 (11). pp. 1541-1556. DOI 10.1093/plankt/fbq076. [img] Heller, M. and Croot, P. (2010) Application of a Superoxide (O2-) thermal source (SOTS-1) for the determination and calibration of O2- fluxes in seawater Analytica Chimica Acta, 667 . pp. 1-13. DOI 10.1016/j.aca.2010.03.054. [img] Heller, M. and Croot, P. (2010) Kinetics of superoxide reactions with dissolved organic matter in tropical Atlantic surface waters near Cape Verde (CVOO) Journal of Geophysical Research - Oceans, 115 (C12). C12038. DOI 10.1029/2009JC006021. Heller, M. and Croot, P. (2011) Superoxide decay as a probe for speciation changes during dust dissolution in Tropical Atlantic surface waters near Cape Verde Marine Chemistry, 126 (1-4). pp. 37-55. DOI 10.1016/j.marchem.2011.03.006. [img] [img] Heller, M., Gaiero, D. and Croot, P. (2013) Basin scale survey of marine humic fluorescence in the Atlantic: relationship to iron solubility and H2O2 Global Biogeochemical Cycles, 27 . pp. 1-14. DOI 10.1029/2012GB004427. [img] Müller, C., Iinuma, Y., Karstensen, J., van Pinxteren, D., Lehmann, S., Gnauk, T. and Herrmann, H. (2009) Seasonal variation of aliphatic amines in marine sub-micrometer particles at the Cape Verde islands Atmospheric Chemistry and Physics, 9 . pp. 9587-9597. [img] Ryabenko, E., Kock, A., Bange, H. W., Altabet, M. A. and Wallace, D. W. R. (2012) Contrasting biogeochemistry of nitrogen in the Atlantic and Pacific oxygen minimum zones Biogeosciences (BG), 9 . pp. 203-215. DOI 10.5194/bgd-8-8001-2011. [img] Stemmler, I., Rothe, M., Hense, I. and Hepach, H. (2013) Numerical modelling of methyl iodide in the eastern tropical Atlantic Biogeosciences (BG), 10 (6). pp. 4211-4225. DOI 10.5194/bg-10-4211-2013. [img] [img] Stramma, L., Prince, E. D., Schmidtko, S., Luo, J., Hoolihan, J. P., Visbeck, M., Wallace, D. W. R., Brandt, P. and Körtzinger, A. (2012) Expansion of oxygen minimum zones may reduce available habitat for tropical pelagic fishes Nature Climate Change, 2 (1). pp. 33-37. DOI 10.1038/NCLIMATE1304. [img] [img] Wuttig, K., Heller, M. I. and Croot, P. (2013) Pathways of Superoxide (O2-) decay in the Eastern Tropical North Atlantic Environmental Science & Technology, 47 (18). pp. 10249-10256. DOI 10.1021/es401658t. |
||
Relevant publications proceedings published in the context of conference |
Technicians
Name | |
---|---|
Nuno Vieira | <Please login to view> |
Ivanice Monteiro | <Please login to view> |
Pericles Silva | <Please login to view> |
Status / Maintenance
System Status | Operational | Planned Frequency | 12 month(s) |
---|---|---|---|
Platform Required | Deep Sea Research Vessel | People Involved | 3 |
Duration of Operations | 1 day(s) | Cleaning | Yes |
Replacments | Yes | Download Data | Yes |
Data Information
Final data output format | ASCII | Data Quality Check | Yes |
---|---|---|---|
Type of quality check on real-time/near-real time data | Manual | Real Time – Data availability target | |
Type of Quality check on delayed mode data | Manual | Delayed Mode – Data availability target | |
Own data management | Yes | Type of use of data | Research |
Data Management Link | portal.geomar.de/ | ||
GEOSS URN | |||
GEOSS Link |
TNA
Avaliable for TNA | Yes | ||
---|---|---|---|
Prefered time period for TNA | From July to December | ||
TNA Support offered | Assistance and logistical support preparing small cruises to the site. | ||
Services Available | Duplicate CTD casts to 500 m: salinity, temperature, chlorophyll/fluorescence, turbidity, oxygen, Photosynthetically Available Radiation (PAR). • Bottle samples: 10 standard depth (10, 20, 40, 60, 80, 100, 150, 250, 350, 450 dbar) for nuts (nitrate, nitrite, phosphate, silicate), O2, DIC, TOC, TON, TA, and chlorophyll-a |
||
Potential Additional Uses | gliders and float deployments. Additional sensors can be attached to the mooring line. Eddy location. | ||
Data Ports | -Self-logging | ||
Availability of External Power | Self-powered | ||
Instrument installation methodology | Depending on instrument |
||
Data History | Data: This provides acess to the most important data in the contest of CVOO. Meta data: The Ocean Science Information System (OSIS) provides meta data for all espeditions such as dadte, location, collected parameters and a lot more. Registered users may also acess the collected data (such as CTD data) as soon as it has been published. Bottle data: The Niskin data base is a recently developed feature. It is implemented into OSIS and provides direct acess to the calibrated bottle data. With the integrated search function you can directly acess the data you want (e.g all Oxygen measurements from 2010-today north of 10º N”). Near realtime data: Since November 2012, the mooring is transmitting temperature, salinity and oxygen measurements from the upper 50 meters. The data is sent every is sent every 2 hours and can be viewed on the website. Since August 2012 a tracking software analyzes daily satellite data and tracks eddies in the eastern tropical Atlantic |
||
Instrument installation methodology | 1 per month | ||
Observatory maintenance estimated or planned schedules | April 2014 | ||
Data policy and access | FixO3/EuroSITES data policy: http://www.eurosites.info/pdf/EuroSITES%20Data%20Policy.pdf NERC data policy: http://www.nerc.ac.uk/research/sites/data/policy.asp |
||
Additional comments | |||
Modality of access | In-Person |
Software Services
Sensor type/model | Software for the pre-processing | Software for the post post-processing | Software for the production of graphical output |
---|---|---|---|
CTD | Seasoft V2 | Seabird postprocessing | Matlab |
Sensors
Deployed | Planned | ||
---|---|---|---|
Instrument/Sensor Type | Parameter(s) | ||
Platform | Buoy | Manufacturer | |
Instrument/Sensor documentation (URL) | |||
Sensor Type / Model | Power Supply | ||
Approximate Depth / Height | Sampling interval | ||
Calibration Samples Available | Yes | Frequency of Calibration Samples | |
Intercalibration Available | Yes | Intercalibration Platform | |
Intercalibration Frequency | |||
Problems | |||
Solution Adopted | |||
Datasheet URL | |||
Comments |
Deployed | Planned | ||
---|---|---|---|
Instrument/Sensor Type | Parameter(s) | ||
Platform | Buoy | Manufacturer | |
Instrument/Sensor documentation (URL) | |||
Sensor Type / Model | Power Supply | ||
Approximate Depth / Height | Sampling interval | ||
Calibration Samples Available | Yes | Frequency of Calibration Samples | |
Intercalibration Available | Yes | Intercalibration Platform | |
Intercalibration Frequency | |||
Problems | |||
Solution Adopted | |||
Datasheet URL | |||
Comments |
Deployed | Planned | ||
---|---|---|---|
Instrument/Sensor Type | PAR | Parameter(s) | Radiance |
Platform | Buoy | Manufacturer | |
Instrument/Sensor documentation (URL) | |||
Sensor Type / Model | Power Supply | ||
Approximate Depth / Height | Sampling interval | ||
Calibration Samples Available | Yes | Frequency of Calibration Samples | |
Intercalibration Available | Yes | Intercalibration Platform | |
Intercalibration Frequency | |||
Problems | |||
Solution Adopted | |||
Datasheet URL | |||
Comments |
Deployed | Planned | ||
---|---|---|---|
Instrument/Sensor Type | ECO FLNTURT | Parameter(s) | TURB |
Platform | Buoy | Manufacturer | |
Instrument/Sensor documentation (URL) | |||
Sensor Type / Model | Power Supply | ||
Approximate Depth / Height | Sampling interval | ||
Calibration Samples Available | Yes | Frequency of Calibration Samples | |
Intercalibration Available | Yes | Intercalibration Platform | |
Intercalibration Frequency | |||
Problems | |||
Solution Adopted | |||
Datasheet URL | |||
Comments |
Deployed | Planned | ||
---|---|---|---|
Instrument/Sensor Type | ECO FLNTURT | Parameter(s) | CPHL |
Platform | Buoy | Manufacturer | |
Instrument/Sensor documentation (URL) | |||
Sensor Type / Model | Power Supply | ||
Approximate Depth / Height | Sampling interval | ||
Calibration Samples Available | Yes | Frequency of Calibration Samples | |
Intercalibration Available | Yes | Intercalibration Platform | |
Intercalibration Frequency | |||
Problems | |||
Solution Adopted | |||
Datasheet URL | |||
Comments |
Deployed | Planned | ||
---|---|---|---|
Instrument/Sensor Type | SBE 43 | Parameter(s) | DOXY |
Platform | Buoy | Manufacturer | |
Instrument/Sensor documentation (URL) | |||
Sensor Type / Model | Power Supply | ||
Approximate Depth / Height | Sampling interval | ||
Calibration Samples Available | Yes | Frequency of Calibration Samples | |
Intercalibration Available | Yes | Intercalibration Platform | |
Intercalibration Frequency | |||
Problems | |||
Solution Adopted | |||
Datasheet URL | |||
Comments |
Deployed | Planned | ||
---|---|---|---|
Instrument/Sensor Type | CTD19 PLUS V2 | Parameter(s) | PSAL |
Platform | Buoy | Manufacturer | |
Instrument/Sensor documentation (URL) | |||
Sensor Type / Model | Power Supply | ||
Approximate Depth / Height | Sampling interval | ||
Calibration Samples Available | Yes | Frequency of Calibration Samples | |
Intercalibration Available | Yes | Intercalibration Platform | |
Intercalibration Frequency | |||
Problems | |||
Solution Adopted | |||
Datasheet URL | |||
Comments |
Deployed | Planned | ||
---|---|---|---|
Instrument/Sensor Type | CTD19 PLUS V2 | Parameter(s) | PRES |
Platform | Buoy | Manufacturer | |
Instrument/Sensor documentation (URL) | |||
Sensor Type / Model | Power Supply | ||
Approximate Depth / Height | Sampling interval | ||
Calibration Samples Available | Yes | Frequency of Calibration Samples | |
Intercalibration Available | Yes | Intercalibration Platform | |
Intercalibration Frequency | |||
Problems | |||
Solution Adopted | |||
Datasheet URL | |||
Comments |