[{"dataset_parameter_nid":"762863","supplied_name":"Date","supplied_units":"unitless","value_format":null,"description":"\u003Cp\u003EUTC sampling date formatted as yyyy-mm-dd.\u003C\/p\u003E\n","no_data_value":"not applicable","conversion_necessary":"no","conversion_utility":null,"parameter_nid":"798","parameter_description":"\u003Cp\u003EUTC month, day and year, usually as a text string, e.g. feb10_1995. It is better to use one of the other forms of presenting date and time data so that the data can be used in computations and for comparisons. Note, if the string begins with numbers but also includes letters, there may be problems using the field name for retrieval. Use date_gmt for future data sets.\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":null,"parameter_official_name":"date_utc","parameter_external_identifier":null,"parameter_short_description":"date_utc","parameter_short_name":"date_utc","parameter_units":null,"parameter_units_external_identifier":null,"order":null,"types":[{"type":"Primary ISODateTime variable","dataset_parameter_type_nid":"762903","type_rankable":"0","type_tid":"148"}]},{"dataset_parameter_nid":"762864","supplied_name":"Depth","supplied_units":"meters","value_format":null,"description":"\u003Cp\u003EDepth at which the samples were collected.\u003C\/p\u003E\n","no_data_value":"not applicable","conversion_necessary":"no","conversion_utility":null,"parameter_nid":"808","parameter_description":"\u003Cp\u003EObservation\/sample depth below the sea surface. Units often reported as: meters, feet.\u003C\/p\u003E\n\u003Cp\u003E\nWhen used in a JGOFS\/GLOBEC dataset the depth is a best estimate; usually but not always calculated from pressure; calculated either from CTD pressure using Fofonoff and Millard (1982; UNESCO Tech Paper #44) algorithm adjusted for 1980 equation of state for seawater (EOS80) or simply equivalent to nominal depth as recorded during sampling if CTD pressure was unavailable.\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":"nd","parameter_official_name":"depth","parameter_external_identifier":"http:\/\/vocab.nerc.ac.uk\/collection\/P09\/current\/DEPH\/","parameter_short_description":"depth","parameter_short_name":"depth","parameter_units":"various","parameter_units_external_identifier":null,"order":null,"types":[{"type":"Primary depth variable","dataset_parameter_type_nid":"768899","type_rankable":"0","type_tid":"22"}]},{"dataset_parameter_nid":"762865","supplied_name":"Station","supplied_units":"unitless","value_format":null,"description":"\u003Cp\u003ENumeric identifier for the station where the data was collected.\u003C\/p\u003E\n","no_data_value":"not applicable","conversion_necessary":"no","conversion_utility":null,"parameter_nid":"987","parameter_description":"\u003Cp\u003EStation identifier; a unique number or alphanumeric string\u00a0designating a general geographic location at which one or more sampling activities may occur.\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":"nd","parameter_official_name":"station","parameter_external_identifier":null,"parameter_short_description":"station","parameter_short_name":"station","parameter_units":"dimensionless","parameter_units_external_identifier":null,"order":null,"types":[{"type":"profile discrete","rank":"1","dataset_parameter_type_nid":"768900","type_rankable":"1","type_tid":"27"},{"type":"aggregate values","dataset_parameter_type_nid":"768901","type_rankable":"0","type_tid":"28"}]},{"dataset_parameter_nid":"762866","supplied_name":"CTD_Cast","supplied_units":"unitless","value_format":null,"description":"\u003Cp\u003ENumeric identifier for the CTD cast where the data was collected.\u003C\/p\u003E\n","no_data_value":"not applicable","conversion_necessary":"no","conversion_utility":"","parameter_nid":"761","parameter_description":"\u003Cp\u003Ecast or profile number\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":"nd","parameter_official_name":"cast","parameter_external_identifier":null,"parameter_short_description":"cast","parameter_short_name":"cast","parameter_units":"dimensionless","parameter_units_external_identifier":null,"order":null},{"dataset_parameter_nid":"762867","supplied_name":"PO4","supplied_units":"umol per liter","value_format":null,"description":"\u003Cp\u003EPhosphate concentration.Samples were NOT pre-concentrated with MAGIC; bdl = 0.014 umol per liter\u003C\/p\u003E\n","no_data_value":"nd = not determined; bdl = below detection limit","conversion_necessary":"no","conversion_utility":"","parameter_nid":"937","parameter_description":"\u003Cp\u003EOrthophosphate\u00a0(phosphate, reactive phosphorus), Various units.\u00a0\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":null,"parameter_official_name":"PO4","parameter_external_identifier":null,"parameter_short_description":"reactive phosphorus (PO4)","parameter_short_name":"PO4","parameter_units":"various","parameter_units_external_identifier":null,"order":null},{"dataset_parameter_nid":"762868","supplied_name":"Silicate","supplied_units":"umol per liter","value_format":null,"description":"\u003Cp\u003ESilica concentration; bdl = 0.23 umol per liter\u003C\/p\u003E\n","no_data_value":"nd = not determined; bdl = below detection limit","conversion_necessary":"no","conversion_utility":"","parameter_nid":"973","parameter_description":"\u003Cp\u003ESilicate (silicic acid, Orthosilicic Acid), Si(OH)4, uM (micromolar) or ug-at Si(OH)4-Si\/l (colloquially known as \u0027silicate\u0027)\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":null,"parameter_official_name":"SiOH_4","parameter_external_identifier":null,"parameter_short_description":"Silicate, Si(OH)4, silicic acid","parameter_short_name":"Silicate","parameter_units":null,"parameter_units_external_identifier":null,"order":null},{"dataset_parameter_nid":"762869","supplied_name":"NO3","supplied_units":"umol per liter","value_format":null,"description":"\u003Cp\u003ENitrate concentration; bdl = 0.288 umol per liter\u003C\/p\u003E\n","no_data_value":"nd = not determined; bdl = below detection limit","conversion_necessary":"no","conversion_utility":"","parameter_nid":"1194","parameter_description":"\u003Cp\u003ENitrate concentration in the water column\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":"nd","parameter_official_name":"NO3","parameter_external_identifier":"http:\/\/vocab.nerc.ac.uk\/collection\/P01\/current\/NTRAIGGS\/","parameter_short_description":"Nitrate","parameter_short_name":"NO3","parameter_units":"various","parameter_units_external_identifier":null,"order":null},{"dataset_parameter_nid":"762870","supplied_name":"NO2","supplied_units":"umol per liter","value_format":null,"description":"\u003Cp\u003ENitrite concentration; bdl = 0.011 umol per liter\u003C\/p\u003E\n","no_data_value":"nd = not determined; bdl = below detection limit","conversion_necessary":"no","conversion_utility":"","parameter_nid":"1192","parameter_description":"\u003Cp\u003ENitrite\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":"nd","parameter_official_name":"NO2","parameter_external_identifier":"http:\/\/vocab.nerc.ac.uk\/collection\/P01\/current\/NTRIAAZX\/","parameter_short_description":"Nitrite","parameter_short_name":"NO2","parameter_units":"various","parameter_units_external_identifier":null,"order":null},{"dataset_parameter_nid":"762871","supplied_name":"NH4","supplied_units":"umol per liter","value_format":null,"description":"\u003Cp\u003EAmmonium concentration; bdl = 0.047 umol per liter\u003C\/p\u003E\n","no_data_value":"nd = not determined; bdl = below detection limit","conversion_necessary":"no","conversion_utility":"","parameter_nid":"901","parameter_description":"\u003Cp\u003EAmmonium and ammonia concentration parameters in any body of fresh or salt water.\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":null,"parameter_official_name":"Ammonium","parameter_external_identifier":"http:\/\/vocab.nerc.ac.uk\/collection\/P01\/current\/AMONAAZX\/","parameter_short_description":"Ammonium","parameter_short_name":"NH4","parameter_units":null,"parameter_units_external_identifier":null,"order":null},{"dataset_parameter_nid":"762877","supplied_name":"lat","supplied_units":"decimal degrees","value_format":null,"description":"\u003Cp\u003Elatitude; north is positive\u003C\/p\u003E\n","no_data_value":"nd","conversion_necessary":"no","conversion_utility":null,"parameter_nid":"730","parameter_description":"\u003Cp\u003Elatitude, in decimal degrees, North is positive, negative denotes South; Reported in some datasets as degrees, minutes\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":"nd","parameter_official_name":"latitude","parameter_external_identifier":"http:\/\/vocab.nerc.ac.uk\/collection\/P09\/current\/LATX\/","parameter_short_description":"latitude","parameter_short_name":"lat","parameter_units":"decimal degrees","parameter_units_external_identifier":null,"order":null,"types":[{"type":"Primary latitude variable","dataset_parameter_type_nid":"768897","type_rankable":"0","type_tid":"23"}]},{"dataset_parameter_nid":"762878","supplied_name":"lon","supplied_units":"decimal degrees","value_format":null,"description":"\u003Cp\u003Elongitude; east is positive\u003C\/p\u003E\n","no_data_value":"nd","conversion_necessary":"no","conversion_utility":null,"parameter_nid":"731","parameter_description":"\u003Cp\u003Elongitude, in decimal degrees, East is positive, negative denotes West; Reported in some datsets as degrees, minutes\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":"nd","parameter_official_name":"longitude","parameter_external_identifier":"http:\/\/vocab.nerc.ac.uk\/collection\/P09\/current\/LONX\/ ","parameter_short_description":"longitude","parameter_short_name":"lon","parameter_units":"decimal degrees","parameter_units_external_identifier":null,"order":null,"types":[{"type":"Primary longitude variable","dataset_parameter_type_nid":"768898","type_rankable":"0","type_tid":"24"}]}]