#OceanSITES Global Data Assembly Center (GDAC) Index File v2.0 #Two GDACs FTP servers are on-line at ftp://data.ndbc.noaa.gov/data/oceansites and ftp://ftp.ifremer.fr/ifremer/oceansites #Also the datasets are available at the THREDDS server http://dods.ndbc.noaa.gov/thredds/catalog/data/oceansites/catalog.html #For more information, please contact: http://www.oceansites.org # #This OceanSITES index file was last updated on : 2020-03-07T02:10:02Z. Columns are defined as follows: #FILE (relative to current file directory),DATE_UPDATE,START_DATE,END_DATE,SOUTHERN_MOST_LATITUDE,NORTHERN_MOST_LATITUDE,WESTERN_MOST_LONGITUDE,EASTERN_MOST_LONGITUDE,MINIMUM_DEPTH,MAXIMUM_DEPTH,UPDATE_INTERVAL,SIZE (in bytes),GDAC_CREATION_DATE,GDAC_UPDATE_DATE,DATA_MODE (R: real-time D: delayed mode M: mixed P: provisional),PARAMETERS (space delimited CF standard names) # DATA/PAP/OS_PAP-1_200210_D_CTD.nc,2010-11-18T15:45:26Z,2002-10-06T20:00:00Z,2003-07-08T12:00:00Z,48.5,50.5,-17,-16,40,40,void,194452,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_200307_D_CTD.nc,2010-11-18T16:25:35Z,2003-07-12T14:30:00Z,2003-11-16T08:30:00Z,48.5,49.5,-17,-16,32,370,void,1812236,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_200307_D_Chl.nc,2012-11-05T17:57:31Z,2003-07-12T14:15:06Z,2003-11-16T06:15:07Z,48,50,-16,-17,30.302,113.933,void,61948,2011-02-16T10:52:52Z,2012-11-07T04:11:09Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity mass_concentration_of_chlorophyll_in_sea_water DATA/PAP/OS_PAP-1_200311_D_CTD.nc,2010-11-18T16:32:50Z,2003-11-17T16:30:00Z,2004-06-18T16:45:00Z,48.5,50.5,-17,-16,39,39,void,585248,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_200311_D_Chl.nc,2010-12-09T13:04:53Z,2003-11-18T17:00:00Z,2004-06-20T15:00:00Z,48,50,-16,-17,22.159,143.438,void,96900,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity volume_concentration_of_chlorophyll-a_in_sea_water DATA/PAP/OS_PAP-1_200406_D_CTD.nc,2010-11-18T16:41:30Z,2004-06-22T22:00:00Z,2005-07-08T09:45:00Z,48.5,50.5,-17,-16,38,38,void,1032752,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_200406_D_Chl.nc,2010-12-09T13:06:57Z,2004-06-23T22:45:00Z,2005-07-18T08:44:59Z,48,50,-16,-17,20.154,999.999,void,166012,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity volume_concentration_of_chlorophyll-a_in_sea_water DATA/PAP/OS_PAP-1_200706_R_CTD.nc,2010-11-18T17:04:47Z,2007-06-22T18:00:00Z,2007-08-03T00:00:00Z,48,50,-17,-16,30,1000,void,95832,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_200905_D_CTD.nc,2013-01-22T15:25:54Z,2009-05-23T18:00:01Z,2009-07-20T11:00:00Z,48.95,49.05,-16.45,-16.34,30,1000,void,1140072,2012-12-22T04:11:06Z,2013-01-24T04:11:17Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_200905_D_Chl.nc,2012-12-18T16:35:27Z,2009-05-23T17:00:00Z,2009-07-20T11:00:00Z,48,50,-16,-17,30.959,36.48,void,56320,2012-11-23T16:11:04Z,2012-12-23T04:11:07Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity mass_concentration_of_chlorophyll_in_sea_water DATA/PAP/OS_PAP-1_200905_P_CTD.nc,2010-11-18T16:55:09Z,2009-05-23T18:00:01Z,2009-07-20T11:00:00Z,48.95,49.05,-16.45,-16.34,30,1000,void,1140076,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,P,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_201006_D_CTD.nc,2013-01-30T17:13:42Z,2010-06-01T11:00:01Z,2010-09-20T09:15:00Z,48,50,-16,-17,30,30,void,307344,2013-01-31T04:11:16Z,2013-02-01T04:11:18Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_201006_D_Chl.nc,2012-12-19T17:23:35Z,2010-06-01T11:00:07Z,2010-09-15T09:31:45Z,48,50,-16,-17,23.9814,31.4623,void,94472,2012-12-21T16:11:04Z,2012-12-23T04:11:07Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity mass_concentration_of_chlorophyll_in_sea_water DATA/PAP/OS_PAP-1_201006_R_CTD.nc,2010-11-05T14:28:26Z,2010-06-01T10:45:00Z,2010-09-19T08:15:00Z,48,50,-16,-17,30,30,void,154008,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_201006_R_O.nc,2012-11-05T17:16:23Z,2010-06-01T10:44:59Z,2010-09-18T00:15:00Z,48,50,-16,-17,24.358,99999,void,389812,2011-02-16T10:52:52Z,2012-11-07T04:11:09Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity mass_concentration_of_oxygen_in_sea_water temperature_of_sensor_for_oxygen_in_sea_water DATA/PAP/OS_PAP-1_201006_R_PCO2.nc,2010-11-10T14:46:02Z,2010-06-02T00:51:02Z,2010-09-09T18:50:08Z,48,50,-16,-17,27.94,31.44,void,26580,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity surface_partial_pressure_of_carbon_dioxide_in_sea_water Standard deviation of DATA/PAP/OS_PAP-1_201009_D_Chl.nc,2012-12-19T17:22:28Z,2010-09-19T23:59:00Z,2011-07-28T06:00:00Z,48,50,-16,-17,23.8196,32.0777,void,51796,2012-12-21T16:11:04Z,2012-12-23T04:11:07Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity mass_concentration_of_chlorophyll_in_sea_water DATA/PAP/OS_PAP-1_201009_R_CTD.nc,2011-01-31T03:55:48Z,2010-09-19T20:30:01Z,2011-01-23T14:30:00Z,48,50,-16,-17,29,30,void,296364,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_201009_R_PCO2.nc,2011-02-07T03:57:24Z,2010-09-20T01:35:55Z,2011-01-10T14:23:21Z,48,50,-16,-17,27.885,31.0595,void,23552,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity surface_partial_pressure_of_carbon_dioxide_in_sea_water Standard deviation of DATA/PAP/OS_PAP-1_201107_D_Chl.nc,2012-12-20T12:08:02Z,2011-07-30T01:46:00Z,2012-05-02T13:46:00Z,48,50,-16,-17,20.5267,30.6114,void,47336,2012-12-21T16:11:04Z,2012-12-23T04:11:07Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity mass_concentration_of_chlorophyll_in_sea_water DATA/PAP/OS_PAP-1_201107_R_CTD.nc,2012-07-30T03:56:20Z,2011-07-29T22:00:47Z,2012-05-02T14:00:56Z,48,50,-16,-17,30,30,void,381840,2011-08-24T04:31:04Z,2012-07-31T04:11:05Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_201107_R_PCO2.nc,2013-02-08T16:53:27Z,2011-07-30T01:07:11Z,2012-02-28T01:07:32Z,48,50,-16,-17,20.931,31.2245,void,31940,2013-02-09T04:11:33Z,2013-02-10T04:19:50Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity surface_partial_pressure_of_carbon_dioxide_in_sea_water Standard deviation of DATA/PAP/OS_PAP-1_201205_R_CTD.nc,2013-01-08T03:56:10Z,2012-05-06T16:45:01Z,2013-01-07T23:45:01Z,48,50,-16,-17,1,30,void,513588,2012-10-01T16:11:04Z,2013-01-10T04:11:06Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-1_201205_R_PCO2.nc,2013-02-08T16:58:47Z,2012-05-07T01:15:40Z,2012-07-03T13:15:32Z,48,50,-16,-17,29.525,31.615,void,16460,2013-02-09T04:11:33Z,2013-02-10T04:19:50Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity surface_partial_pressure_of_carbon_dioxide_in_sea_water Standard deviation of DATA/PAP/OS_PAP-1_201304_P_P_Chl.nc,2016-03-09T09:40:52Z,2013-04-25T03:25:00Z,2013-12-20T03:48:22Z,48,50,-16,-17,30,30,void,23248,2016-03-04T01:45:03Z,2016-03-08T01:45:02Z,P,time depth latitude longitude DATA/PAP/OS_PAP-1_201304_P_Wetlabs_Chl_30m.nc,2016-05-18T15:37:55Z,2013-04-25T03:25:00Z,2013-12-20T03:48:22Z,48,50,-16,-17,30,30,void,60028,2016-03-08T13:45:03Z,2016-05-19T00:45:02Z,P,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure mass_concentration_of_chlorophyll_a_in_sea_water DATA/PAP/OS_PAP-1_201304_P__Chl.nc,2016-03-09T11:59:41Z,2013-04-25T03:25:00Z,2013-12-20T03:48:22Z,48,50,-16,-17,30,30,void,16844,2016-03-09T13:45:03Z,2016-03-10T01:45:03Z,P,time depth latitude longitude DATA/PAP/OS_PAP-1_201304_R_CTD.nc,2014-05-28T12:10:45Z,2013-04-25T01:15:01Z,2014-01-18T08:45:01Z,48,50,-16,-17,1,30,void,410772,2013-12-05T16:11:02Z,2014-05-13T16:11:05Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_salinity sea_water_pressure DATA/PAP/OS_PAP-1_201304_R_PCO2.nc,2013-12-18T10:49:00Z,2013-04-25T01:14:39Z,2013-12-17T19:11:18Z,48,50,-16,-17,0.748,99999,void,51128,2013-12-19T04:11:03Z,2016-05-19T00:45:02Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity surface_partial_pressure_of_carbon_dioxide_in_sea_water Standard deviation of DATA/PAP/OS_PAP-1_201407_P_Cyclops_Chl_30m.nc,2016-03-01T14:39:12Z,2014-07-15T10:30:00Z,2015-03-01T06:30:00Z,48,50,-16,-17,30,30,void,192984,2016-03-02T01:45:02Z,2016-03-23T01:45:02Z,P,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure mass_concentration_of_chlorophyll_a_in_sea_water DATA/PAP/OS_PAP-1_201407_P_Wetlabs_Chl_30m.nc,2016-03-01T15:48:27Z,2014-07-15T12:59:46Z,2015-03-01T00:57:32Z,48,50,-16,-17,30,30,void,57680,2016-03-01T13:45:02Z,2016-03-23T01:45:02Z,P,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure mass_concentration_of_chlorophyll_a_in_sea_water DATA/PAP/OS_PAP-1_201407_R_CTD.nc,2015-07-08T10:58:55Z,2014-07-15T13:01:48Z,2015-02-28T12:12:10Z,48,50,-16,-17,1,1,void,24208,2014-11-22T16:11:27Z,2016-03-02T01:45:02Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure DATA/PAP/OS_PAP-1_201407_R_CTDO.nc,2015-02-02T03:57:02Z,2014-07-15T10:00:22Z,2015-02-01T19:30:53Z,48,50,-16,-17,1,30,void,565688,2014-09-29T19:32:28Z,2015-02-07T04:11:12Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure disolved_oxygensea_water_pressure DATA/PAP/OS_PAP-1_201407_R_PCO2.nc,2016-03-22T23:34:34Z,2014-07-15T13:01:48Z,2015-02-28T12:12:10Z,48,50,-16,-17,1,1,void,27956,2015-07-22T13:23:40Z,2016-03-23T01:45:02Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure partial_pressure_of_carbon_dioxide_in_water DATA/PAP/OS_PAP-1_201507_R_CTD.nc,2016-05-12T11:53:06Z,2015-07-01T12:45:01Z,2016-04-25T11:15:01Z,48,50,-16,-17,30,30,void,335524,2015-07-22T13:23:40Z,2016-05-01T00:45:03Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure DATA/PAP/OS_PAP-1_201507_R_CTDO.nc,2016-05-12T11:56:58Z,2015-07-01T12:30:46Z,2016-04-25T13:30:01Z,48,50,-16,-17,1,30,void,845192,2015-07-22T13:23:40Z,2016-05-01T00:45:03Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure moles_of_oxygen_per_unit_mass_in_sea_water DATA/PAP/OS_PAP-1_201507_R_Chl_30m.nc,unknown,,,unknown,unknown,unknown,unknown,unknown,unknown,void,4096,2015-11-04T13:45:03Z,2016-02-05T01:45:02Z,unknown, DATA/PAP/OS_PAP-1_201507_R_Cyclops_Chl_30m.nc,2016-05-10T03:59:29Z,2015-07-01T13:30:00Z,2016-04-25T09:30:00Z,48,50,-16,-17,30,30,void,248124,2015-11-19T01:45:03Z,2016-05-01T00:45:03Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure mass_concentration_of_chlorophyll_a_in_sea_water DATA/PAP/OS_PAP-1_201507_R_ISUS_N_30m.nc,2016-05-09T04:02:10Z,2015-07-01T19:20:31Z,2016-04-25T12:20:31Z,48,50,-16,-17,30,30,void,211100,2016-02-02T01:45:03Z,2016-05-01T00:45:03Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure DATA/PAP/OS_PAP-1_201507_R_PCO2_1m.nc,2016-05-10T03:55:30Z,2015-07-01T23:58:05Z,2016-03-03T03:53:25Z,48,50,-16,-17,1,1,void,29288,2015-07-22T13:23:40Z,2016-05-01T00:45:03Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure partial_pressure_of_carbon_dioxide_in_water DATA/PAP/OS_PAP-1_201507_R_PCO2_30m.nc,2016-05-10T03:55:45Z,2015-07-01T23:59:47Z,2016-03-28T12:31:53Z,48,50,-16,-17,30,30,void,30664,2015-07-22T13:23:40Z,2016-05-01T00:45:03Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure partial_pressure_of_carbon_dioxide_in_water DATA/PAP/OS_PAP-1_201507_R_Wetlabs_Chl_30m.nc,2016-05-10T03:58:30Z,2015-07-01T14:00:27Z,2016-04-24T02:31:53Z,48,50,-16,-17,30,30,void,70632,2015-11-18T13:45:03Z,2016-05-01T00:45:03Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure mass_concentration_of_chlorophyll_a_in_sea_water DATA/PAP/OS_PAP-1_201704_R_CTDO.nc,2018-07-11T17:16:29Z,2017-04-20T12:30:00Z,2018-07-11T17:16:29Z,48,50,-17,-16,1,30,daily,1020860,2017-08-04T00:45:03Z,2018-07-12T00:45:02Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_practical_salinity moles_of_oxygen_per_unit_mass_in_sea_water DATA/PAP/OS_PAP-1_201704_R_PCO2.nc,2018-07-11T17:16:29Z,2017-04-20T12:30:00Z,2018-07-11T17:16:28Z,48,50,-17,-16,1,30,daily,113780,2018-07-06T00:45:02Z,2018-07-06T00:45:02Z,R,time depth latitude longitude partial_pressure_of_carbon_dioxide_in_sea_water sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_practical_salinity moles_of_oxygen_per_unit_mass_in_sea_water DATA/PAP/OS_PAP-1_201806_R_CTDO.nc,2019-06-23T21:00:08Z,2018-06-04T12:00:00Z,2019-06-23T21:00:08Z,48,50,-17,-16,1,30,daily,124220,2018-07-07T00:45:02Z,2019-05-06T14:45:04Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_practical_salinity moles_of_oxygen_per_unit_mass_in_sea_water DATA/PAP/OS_PAP-1_201806_R_PCO2.nc,2019-06-23T21:00:10Z,2018-06-04T12:00:00Z,2019-06-23T21:00:09Z,48,50,-17,-16,1,30,daily,28692,2018-07-12T00:45:02Z,2019-06-07T14:45:03Z,R,time depth latitude longitude partial_pressure_of_carbon_dioxide_in_sea_water sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_practical_salinity moles_of_oxygen_per_unit_mass_in_sea_water DATA/PAP/OS_PAP-1_201907_R_CTDO.nc,2019-07-25T15:37:56Z,2019-07-03T15:15:00Z,2019-07-25T15:37:56Z,48,50,-17,-16,1,30,daily,74172,2020-01-14T12:41:14Z,2020-01-14T12:41:14Z,R,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_practical_salinity moles_of_oxygen_per_unit_mass_in_sea_water DATA/PAP/OS_PAP-1_201907_R_PCO2.nc,2019-07-25T15:37:57Z,2019-07-03T15:15:00Z,2019-07-25T15:37:57Z,48,50,-17,-16,1,30,daily,23072,2020-01-14T12:41:14Z,2020-01-14T12:41:14Z,R,time depth latitude longitude partial_pressure_of_carbon_dioxide_in_sea_water sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_practical_salinity moles_of_oxygen_per_unit_mass_in_sea_water DATA/PAP/OS_PAP-2_200210_D_CTD.nc,2010-11-18T15:45:15Z,2002-10-06T20:00:00Z,2003-07-08T12:00:00Z,48.5,50.5,-17,-16,10,800,void,1251348,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-2_200311_D_CTD.nc,2010-11-18T16:32:28Z,2003-11-17T16:30:00Z,2004-06-18T16:45:00Z,48.5,49.5,-17,-16,10,1013,void,4285856,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-2_200406_D_CTD.nc,2010-11-18T16:40:51Z,2004-06-22T22:00:00Z,2005-07-08T09:45:00Z,48.5,49.5,-17,-16,25,1003,void,7610128,2011-02-16T10:52:52Z,2011-02-24T04:31:20Z,D,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_pressure sea_water_salinity DATA/PAP/OS_PAP-3_201205_P_deepTS.nc,2015-05-21T18:14:04Z,2012-05-05T12:00:01Z,2013-04-19T19:00:01Z,48,50,-16,-17,4850,4850,void,480904,2015-07-24T08:32:42Z,2015-07-24T08:32:42Z,P,time depth latitude longitude sea_water_temperature sea_water_electrical_conductivity sea_water_practical_salinity sea_water_pressure