ESD_USAID_H2O_DataDictionary_CT_2015

Defined as the Ship ICES code + departure date formatted as YYYYMMDD

Mission Identifier

An identifier for the station at the island or atoll (LOCATION) associated with the sample. Combines a 3-letter island code (derived from LOCATIONCODE) with a 2-4 digit site number.

Cast number, where a cast is the lowering of equipment over the side at one station (STATION_ID). Cast_number is sequential and starts with 1 for each station.

Unique numeric identifer for each water sample (4-digit number) associated with Station_ID and Cast_number

4-digit year of the water sample collected by a Programmable Underwater Collector (PUC)

Numeric month in UTC of water sample collected by a Programmable Underwater Collector (PUC)

Numeric day in UTC of water sample collected by a Programmable Underwater Collector (PUC)

UTC time of water sample collected by a Programmable Underwater Collector (PUC), hh:mm:ss in 4-hr intervals.

Decimal value of the days, hours, and minutes from the beginning of the year

Latitude in decimal degrees, WGS84, for the given Site

Longitude in decimal degrees, WGS84, for the given Site

Hydrostatic pressure recorded from CTD at the depth where the sample is taken

Pressure calculated from depth (using the R package "oce") for samples not associated with a CTD cast

Depth at which sample was collected (meters).

In situ temperature recorded from CTD with the scale of ITS-90.

Quality control flag for CTDTEMP

Temperature measured by Scientific Computer System, SCS (SBE38)

Salinity calculated from conductivity recorded by CTD using the equation of the Practical Salinity Scale of 1978

Quality control flag for CTDSAL

Salinity calculated from conductivity measured from discrete bottles using the equation of the Practical Salinity Scale of 1978

Quality control flag for Salinity_PSS78

Salinity measured by Scientific Computer System, SCS (SBE45)

Dissolved inorganic carbon measured in micromoles per kilogram. NULL values result from insufficiently filled sample bags in which the sample volume only allowed for TA analysis.

Flag for dissolved inorganic carbon values

Total alkalinity measured in micromoles per kilogram.

Quality control flag for TALK; TA_QC from V_OCC_A_H2O_FIELDDATA_OBS

Unique numeric ID of CTD cast (4-digit number).

An identifier for the fixed NCRMP climate site associated with the sample, if any. An OCC_SITEID is a 3-dimensional identifier that describes a location (LATITUDE and LONGITUDE) and depth of a fixed climate site and includes "OCC" prefix, a 3-letter location code (derived from LOCATIONCODE), and a 3-digit site number. A sample is assigned an ASSOC_OCC_SITEID only if its coordinates (LATITUDE and LONGITUDE) are within a 150-m radius of a pre-existing OCC_SITEID; otherwise, no ASSOC_OCC_SITEID is assigned (NULL).

The name of the region where the CTD cast was conducted in the Pacific Islands region: American Samoa, Pacific Remote Island Areas, Mariana Archipelago, main Hawaiian Islands, Northwestern Hawaiian Islands.

Code for the region surveyed in the Pacific Islands region: American Samoa (SAMOA), Pacific Remote Island Areas (PRIA), Mariana Archipelago (MARIAN), main Hawaiian Islands (MHI), Northwestern Hawaiian Islands (NWHI).

Name of island or atoll where the sample was collected in the Pacific Islands region (REGION).

3-Letter unique code for LOCATION.

NCRMP survey design associated with the sample. Survey designs include: samples collected by small boat at permanent climate sites (Permanent); samples collected by small boat and co-located with fish or benthic stratified random survey sites (Stratified_Random); samples collected by small boat at random sites not associated with climate, benthic, or fish sites (Random); shipboard samples collected offshorefor end member data (End_member); and shipboard samples collected to calibrate underway systems (Calibration).

Indicates if water sample is discrete (Single) or if the sample is part a series of water samples collected ~every 4 hrs in a ~24-hr period at the same STATION_ID using a Programmable Underwater Collector (Diel).

Best temperature value associated with the sample, derived from either TEMPERATURE_ITS90_CTD or TEMPERATURE_ITS90_SCS

source of 'TEMPERATURE_ITS90_BEST' measurement: CTD (TEMPERATURE_ITS90_CTD) or SCS (TEMPERATURE_ITS90_SCS)

Best salinity value associated with the sample, derived from either SALINITY_PSS78_CTD, SALINITY_PSS78_BOTTLE, or SALINITY_PSS78_SCS.

source of 'SALINITY_PSS78_BEST' measurement: CTD (SALINITY_PSS78_CTD), discrete bottle sample (SALINITY_PSS78_BOTTLE), or SCS (SALINITY_PSS78_SCS)

pH calculated on Total Scale (TS) from DIC and TALK

Partial pressure of carbon dioxide, calculated from DIC, TA, temperature, salinity, and pressure.

Calculated aragonite saturation based on CTD measurements made during sample collection. Calculated from DIC, TA, temperature, salinity and pressure.

Date and time of water sample in UTC