Diel seawater carbonate chemistry observations from a suite of instrumentation deployed at coral reef sites in Batangas, Philippines from May 21-31, 2015

The data provided in this data set are from diel surveys conducted by the NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD)---formerly the Coral Reef Ecosystem Division---in the Philippines from May 21-31, 2015. The ocean acidification diel suite is an autonomous instrument package that measures diel variability in coral reef seawater carbonate chemistry. These diel suites were deployed on hard-bottom shallow-water (< 15 m) habitats at fixed climate survey sites located within coral reef ecosystems. 

The diel suites were deployed on the reef for at least 24 hours to measure in-situ salinity, temperature, pressure, pH, current direction and magnitude, and dissolved oxygen. Seawater samples were also collected for laboratory analyses of dissolved inorganic carbon (DIC) and total alkalinity (TA). Components of the carbonate system--including pH, pCO2 (partial pressure of carbon dioxide), and aragonite saturation state--are calculated from DIC, TA, temperature, salinity and pressure. Each diel suite consisted of: 1 SBE-19plus CTD sensor, 1 Nortek Acoustic Doppler Current Profiler (ADCP), 1 Satlantic SeaFET Ocean pH sensor, 1 SBE 43 dissolved oxygen sensor co-located with the CTD, and up to 9 Programmable Underwater Collectors (PUCs), each of which collected 1 water sample at 4-hour intervals. Instruments deployed, samples collected, and sample intervals are recorded in the summary file in the data package.

Tags: 483, acoustic doppler current profiler, adcp, alkalinity, aquatic habitat, aragonite saturation state, balayan bay, baseline data from climate stations in batangas, baseline studies, batalang bato, batangas, batong buhay, biodiversity and fisheries in the coral triangle: embracing the e in ecosystem approaches to fisheri, biosphere, bottom, carbon dioxide, carbonate chemistry, chemistry monitoring and assessment, climate, climate change, coastal processes, conductivity, conductivity temperature depth, continuous, coral reef conservation program, coral reef ecosystem division, coral reef ecosystem program, coral reef studies, coral reefs, coral triangle initiative, corals, coulometer for dic measurement, country/territory, cred, crep, ctd, ctd - moored ctd, current measurements, current meter - direction, current meter - speed, density, depth - sensor, diel, dissolution, dissolved gases, dissolved inorganic carbon, dissolved inorganic carbon (dic), dissolved oxygen, doc/noaa/nmfs/pifsc, earth science, ecosystem sciences division, esd, hydrostatic pressure, in situ, in situ chemical, in situ physical, laboratory analyses, mabini (13n120e0032), maricaban island, national marine fisheries service, nmfs, noaa, numeric data sets, nw pacific (limit-180), ocean acidification, ocean basin, ocean chemistry, ocean circulation, ocean ph, ocean temperature, oceanography, oceans, oxygen, oxygen meter, pacific islands fisheries science center, pacific ocean, partial pressure, partial pressure of carbon dioxide - water, ph, ph sensors, philippines, philippines from 2012 to 2015, physical, pifsc, programmable underwater collector, puc, reef habitat, reef monitoring and assessment, salinity, salinity/density, saturation state, sigma-t, south china sea, time series profile, tingloy (13n120e0009), titrator, total alkalinity, twin rocks, twin rocks sanctuary (13n120e0005), u.s. department of commerce, united states agency for international development, us doc, usaid, verde island passage, water chemistry, water current direction, water samples, water temperature, water velocity, zoology
Organization: National Oceanic and Atmospheric Administration, Department of Commerce