The COPEPOD-2007 "short-form" format is designed for use in spreadsheet, graphical, or statistical software.
Each row in this format is a complete observation set with its own position, date, and sampling information.
An observation set can be a single-depth biomass tow, one depth of a multiple-depth biomass tow, or a single taxa (out of many) counted in a single tow or bottle.
Each individual "short-form" data file is an individual cruise.
If you want to reconstruct the original tow or bottle contents within that cruise, you can do this with the RECORD-ID.
The first four digits in this field are a unique identifier for each tow or bottle within the current file.
The second four digits count the observations measured from that net or bottle.
For example, "0001_0001" and "0001_0002" are two observations from the same net, but "0001_0001" and "0002_0001" are observations from two different nets.
Each row in this data file contains multiple comma-separated data fields (columns). Below are the column headings and contents for each data field:
SHP-CRUISE - NODC ship code + COPEPOD internal cruise identifier
YEAR - year of the tow or sample
MONTH - month of the tow or sample
DAY - GMT-based day of the tow or sample
TIMEloc - LOCAL time of the tow or sample ( in decimal hours )
LATITUDE - latitude of the tow or sample ( + = North, - = South )
LONGITDE - longitude of the tow or sample ( + = East, - = West )
UPPER_Z - upper depth of the tow or bottle
LOWER_Z - lower depth of the tow or bottle
T - tow type ( Vertical, Horizontal, Oblique )
MESH - net mesh size ( in micrometers )
NMFS_PGC - COPEPOD Plankton Grouping Code (PGC) for the observation
ITIS_TSN - ITIS Taxonomic Serial Number (TSN) or COPEPOD identifier (iff < 0)
PSC - COPEPOD Plankton [Life] Staging Code for the observation
0 = unspecified
1 = adult or sub-adult
2 = juvenile or larvae
3 = nauplius-like
4 = eggs
5 = incomplete body fragments
V - Type of (V)alue measurement in the Value fields
b = Biomass
c = Count,
l = Biomass (iff large plankter, like jellyfish, were NOT removed for the measurement)
VALUE-per-volu[me] - per-water-volume count or biomass measurement of the observation
UNITS - Units for the VALUE-per-volu[me]
F1 - COPEPOD-2007 global-annual range flag for the per-volu[me] value
F2 - COPEPOD-2007 basin-annual range flag for the per-volu[me] value
F3 - COPEPOD-2007 basin-seasonal range flag for the per-volu[me] value
F4 - COPEPOD-2007 basin-monthly range flag for the per-volu[me] value
VALUE-per-area - per-surface-area count or biomass measurement of the observation
These calculated "per area" values are currently in a testing state.
While the calculations appear sound, range flagging has not been run on these values.
Use these values at your own risk, with caution!.
UNITS - Units of the count or biomass measurement
F1 - place-holder for future global-annual range flag for the per-area value
F2 - place-holder for future basin-annual range flag for the per-area value
F3 - place-holder for future basin-seasonal range flag for the per-area value
F4 - place-holder for future basin-monthly range flag for the per-area value
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SCIENTIFIC NAME -[ descriptive modifiers ]- test description of the observation
RECORD-ID - COPEPOD unique record identifier
DATASET-ID - COPEPOD data set identifier
SHIP - numeric ship (vessel) identifier
PROJ - numeric project identifier
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