| Parameter | Description | Units |
|---|
| event | unique sampling event composite of GMT yday and time | YYyday_hhmm |
| Vnum | filter sample ID number | dimensionless |
| ev_code | event code for sampling event | dimensionless |
| MULVFS_ID | | MULVFS pump ID |
| depth | sampling depth | meters |
| filter_type | type of filter used | dimensionless |
| layer | layer of MULFVS QMA sampled | dimensionless |
| pore_sz | nominal pore size | micrometers |
| d13C_susp | delta 13C of suspended particulate organic carbon relative to PDB std | permil vs. PDB |
| d13C_sd | delta 13C (standard deviation) | permil |
| d15N_susp | delta 15N of suspended particulate organic nitrogen relative to AIR | permil vs. AIR |
| d15N_sd | delta 15N (standard deviation) | permil |
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