SBC LTER: pH time series: Water-sample pH and CO2 system chemistry, ongoing since 2011

Data are a time-series of pH and carbonate chemistry in manually-collected sea water samples
from nine near-shore locations along the Santa Barbara Channel, California, USA, and intended to
benchmark data from moored pH instruments. Data collection began in June 2011 and is ongoing. Time-series
for pH sensors deployed in the field (e.g., SeaFET) are available elsewhere. Discrete seawater samples were collected by hand or using a Niskin bottle. In the laboratory,
samples were analyzed for pH (total scale), total alkalinity and/or total CO2 (sum of carbon
dioxide, bicarbonate and carbonate). Two parameters were used to calculate the full suite of
carbonate chemistry parameters using the CO2calc algorithms. Program outputs are included for
laboratory conditions as input, and adjusted for situ temperature. See Methods for more information,
e.g., Lunden, et al. Data were collected by a consortium of research groups with the intent to leverage their
collective assets and expertise. These groups (and sponsors) include Santa Barbara Coastal LTER
(NSF), OMEGAS Project (NSF), Passow Lab (Calif. State Water Board), Hofmann Lab (NSF, CINMS, US
NPS).