ERDDAP > tabledap > Data Access Form

Dataset Title:	Nutrients, pigments, silicate and experimental data collected aboard the OCEANUS during cruise OC1504A in the North Pacific Ocean from 2015-04-19 to 2015-05-06
Institution:	BCO-DMO   (Dataset ID: bcodmo_dataset_650831)
Information:	Summary | License | ISO 19115 | Metadata | Background | Subset | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum    or a List of Values	Maximum
cruise_id (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"OC1504A"
brief_desc (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"MUSiCC"
event (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"201504200217"	"201505011646"
station (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"10"	"test2-stn01"
date_utc (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"1-May-15"	"30-Apr-15"
time_utc (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"14:04"	"2:18"
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		34.551	43.654
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-124.482	-120.81
depth_w (Depth, meters)	!= =~ <= >= = < >		!= =~ <= >= = < >		55	683
cast (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"CTD002"	"CTD025"
time (ISO Date Time UTC, UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2015-04-20T02:18:00Z	2015-05-01T16:46:00Z
depth (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		1.0	150.5
sample_no (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"1"	"NaN"
bottle_rosette (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"1"	"NaN"
PAR_percent (percent)	!= =~ <= >= = < >		!= =~ <= >= = < >		1	100
bottle_pooled (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"1"	"pooled"
depth_target (Depth, meters)	!= =~ <= >= = < >		!= =~ <= >= = < >		1.0	150.0
PO4 (micromoles per liter)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.072	2.662
NO3_NO2 (micromoles per liter)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.402	31.466
chl_total (micrograms per liter)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.382	38.664
chla (micrograms per liter)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.173	39.198
phaeo (micrograms per liter)	!= =~ <= >= = < >		!= =~ <= >= = < >		-1.085	3.953
dSi (micromoles per Si per liter)	!= =~ <= >= = < >		!= =~ <= >= = < >		1.325	57.583
bSi (micromoles per Si per liter)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.338	19.606
Si_prod_4h (micromoles per Si per liter per day)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0438	7.5783
Si_prod_bionorm_4h (per day)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0199	0.9546
Si_prod_Na2SiO3_4h (micromoles per Si per liter per day)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.7552	15.1251
Si_prod_bionorm_Na2SiO3_4h (per day)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.499	1.044
Si_prod_12h (micromoles per Si per liter per day)	!= =~ <= >= = < >		!= =~ <= >= = < >		1.3336	5.8146
Si_prod_bionorm_12h (per day)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.3916	1.023
Si_prod_Na2SiO3_12h (micromoles per Si per liter per day)	!= =~ <= >= = < >		!= =~ <= >= = < >		1.842	22.5253
Si_prod_bionorm_Na2SiO3_12h (per day)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.4869	1.7049

 

Server-side Functions

distinct()

orderBy orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean (" cruise_id brief_desc event station date_utc time_utc latitude longitude depth_w cast time depth sample_no bottle_rosette PAR_percent bottle_pooled depth_target PO4 NO3_NO2 chl_total chla phaeo dSi bSi Si_prod_4h Si_prod_bionorm_4h Si_prod_Na2SiO3_4h Si_prod_bionorm_Na2SiO3_4h Si_prod_12h Si_prod_bionorm_12h Si_prod_Na2SiO3_12h Si_prod_bionorm_Na2SiO3_12h cruise_id brief_desc event station date_utc time_utc latitude longitude depth_w cast time depth sample_no bottle_rosette PAR_percent bottle_pooled depth_target PO4 NO3_NO2 chl_total chla phaeo dSi bSi Si_prod_4h Si_prod_bionorm_4h Si_prod_Na2SiO3_4h Si_prod_bionorm_Na2SiO3_4h Si_prod_12h Si_prod_bionorm_12h Si_prod_Na2SiO3_12h Si_prod_bionorm_Na2SiO3_12h cruise_id brief_desc event station date_utc time_utc latitude longitude depth_w cast time depth sample_no bottle_rosette PAR_percent bottle_pooled depth_target PO4 NO3_NO2 chl_total chla phaeo dSi bSi Si_prod_4h Si_prod_bionorm_4h Si_prod_Na2SiO3_4h Si_prod_bionorm_Na2SiO3_4h Si_prod_12h Si_prod_bionorm_12h Si_prod_Na2SiO3_12h Si_prod_bionorm_Na2SiO3_12h cruise_id brief_desc event station date_utc time_utc latitude longitude depth_w cast time depth sample_no bottle_rosette PAR_percent bottle_pooled depth_target PO4 NO3_NO2 chl_total chla phaeo dSi bSi Si_prod_4h Si_prod_bionorm_4h Si_prod_Na2SiO3_4h Si_prod_bionorm_Na2SiO3_4h Si_prod_12h Si_prod_bionorm_12h Si_prod_Na2SiO3_12h Si_prod_bionorm_Na2SiO3_12h cruise_id brief_desc event station date_utc time_utc latitude longitude depth_w cast time depth sample_no bottle_rosette PAR_percent bottle_pooled depth_target PO4 NO3_NO2 chl_total chla phaeo dSi bSi Si_prod_4h Si_prod_bionorm_4h Si_prod_Na2SiO3_4h Si_prod_bionorm_Na2SiO3_4h Si_prod_12h Si_prod_bionorm_12h Si_prod_Na2SiO3_12h Si_prod_bionorm_Na2SiO3_12h ")

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  cruise_id {
    String bcodmo_name "cruise_id";
    String description "cruise during which sample was collected";
    String long_name "Cruise Id";
    String units "unitless";
  }
  brief_desc {
    String bcodmo_name "brief_desc";
    String description "the way the project refers to the cruise";
    String long_name "Brief Desc";
    String units "unitless";
  }
  event {
    String bcodmo_name "event";
    String description "event number from Bruland event log";
    String long_name "Event";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/";
    String units "unitless";
  }
  station {
    String bcodmo_name "station";
    String description "sampling station number";
    String long_name "Station";
    String units "unitless";
  }
  date_utc {
    String bcodmo_name "date";
    String description "date at longitude 0; the universal time coordinate (UTC);format:dd-mon-yy";
    String long_name "Date Utc";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String units "unitless";
  }
  time_utc {
    String bcodmo_name "time_utc";
    String description "time at longitude 0; the universal time coordinate (UTC);format:HH:MM";
    String long_name "Time Utc";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 34.551, 43.654;
    String axis "Y";
    String bcodmo_name "latitude";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "latitude in decimal degrees";
    String ioos_category "Location";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -124.482, -120.81;
    String axis "X";
    String bcodmo_name "longitude";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "longitude in decimal degrees; West is negative";
    String ioos_category "Location";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth_w {
    Int16 _FillValue 32767;
    Int16 actual_range 55, 683;
    String bcodmo_name "depth_bottom";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "bottom depth in meters";
    String long_name "Depth";
    String standard_name "depth";
    String units "meters";
  }
  cast {
    String bcodmo_name "cast_type";
    String description "cast type (CTD)";
    String long_name "Cast";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.42949628e+9, 1.43049876e+9;
    String axis "T";
    String bcodmo_name "ISO_DateTime_UTC";
    String description "date and time formatted to ISO 8601 standard; added by DMO;format:YYYY-mm-ddTHH:MM:SS.xx";
    String ioos_category "Time";
    String long_name "ISO Date Time UTC";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/";
    String source_name "ISO_DateTime_UTC";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue NaN;
    Float64 actual_range 1.0, 150.5;
    String axis "Z";
    String bcodmo_name "depth";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "sampling depth in meters";
    String ioos_category "Location";
    String long_name "Depth";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/DEPH/";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  sample_no {
    String bcodmo_name "sample";
    String description "identifier for all types of samples at the given depth";
    String long_name "Sample No";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/ACYC/";
    String units "unitless";
  }
  bottle_rosette {
    String bcodmo_name "bottle";
    String description "rosette bottle number";
    String long_name "Bottle Rosette";
    String units "unitless";
  }
  PAR_percent {
    Byte _FillValue 127;
    Byte actual_range 1, 100;
    String bcodmo_name "PAR";
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String description "percent light level; original name: percent lo";
    String long_name "PAR Percent";
    String units "percent";
  }
  bottle_pooled {
    String bcodmo_name "bottle";
    String description "sample identifier denoting whether sample was pooled from several Niskins";
    String long_name "Bottle Pooled";
    String units "unitless";
  }
  depth_target {
    Float32 _FillValue NaN;
    Float32 actual_range 1.0, 150.0;
    String bcodmo_name "depth";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "target depth for sample collection";
    String long_name "Depth";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/DEPH/";
    String standard_name "depth";
    String units "meters";
  }
  PO4 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.072, 2.662;
    String bcodmo_name "PO4";
    String description "dissoved phosphate concentration in micromoles; analyzed in UCSB MSI Analytical lab;http://www.msi.ucsb.edu/services/analytical-lab/seawater-nutrients-fia";
    String long_name "Mass Concentration Of Phosphate In Sea Water";
    String units "micromoles per liter";
  }
  NO3_NO2 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.402, 31.466;
    String bcodmo_name "NO3_NO2";
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String description "dissolved nitrate+nitrite concentration in micromoles; analyzed in UCSB MSI Analytical lab; http://www.msi.ucsb.edu/services/analytical-lab/seawater-nutrients-fia";
    String long_name "Mole Concentration Of Nitrate In Sea Water";
    String units "micromoles per liter";
  }
  chl_total {
    Float32 _FillValue NaN;
    Float32 actual_range 0.382, 38.664;
    String bcodmo_name "chlorophyll a";
    String description "total chlorophyll (a+b+c) in micrograms per litre determined fluorometrically";
    String long_name "Chl Total";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/";
    String units "micrograms per liter";
  }
  chla {
    Float32 _FillValue NaN;
    Float32 actual_range 0.173, 39.198;
    String bcodmo_name "chlorophyll a";
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.03;
    String colorBarScale "Log";
    String description "chlorophyll a in micrograms per litre determined fluorometrically";
    String long_name "Concentration Of Chlorophyll In Sea Water";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/";
    String units "micrograms per liter";
  }
  phaeo {
    Float32 _FillValue NaN;
    Float32 actual_range -1.085, 3.953;
    String bcodmo_name "phaeopigment";
    String description "phaeophytin in micrograms per litre determined fluorometrically";
    String long_name "Phaeo";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PHAEFMP1/";
    String units "micrograms per liter";
  }
  dSi {
    Float32 _FillValue NaN;
    Float32 actual_range 1.325, 57.583;
    String bcodmo_name "Si_bio";
    String description "silicic acid concentration in micromoles (also known as dissolved silicon concentration or dSi)";
    String long_name "D Si";
    String units "micromoles per Si per liter";
  }
  bSi {
    Float32 _FillValue NaN;
    Float32 actual_range 0.338, 19.606;
    String bcodmo_name "Si_bio";
    String description "particulate biogenic silica in micromoles Si per litre";
    String long_name "B Si";
    String units "micromoles per Si per liter";
  }
  Si_prod_4h {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0438, 7.5783;
    String bcodmo_name "Si_rho";
    String description "four hour incubation silica production rate; original name=4h-32Si rho";
    String long_name "Mass Concentration Of Silicate In Sea Water";
    String units "micromoles per Si per liter per day";
  }
  Si_prod_bionorm_4h {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0199, 0.9546;
    String bcodmo_name "Si_Vb";
    String description "four hour incubation biomass normalized silica production rate; original name=4h-32Si Vb";
    String long_name "Mass Concentration Of Silicate In Sea Water";
    String units "per day";
  }
  Si_prod_Na2SiO3_4h {
    Float32 _FillValue NaN;
    Float32 actual_range 0.7552, 15.1251;
    String bcodmo_name "Si_rho";
    String description "four hour incubation silica production rate after the addition of sodium silicate to a final concentration of ~20uM Na2SiO3; original name=4h-32Si E rho";
    String long_name "Mass Concentration Of Silicate In Sea Water";
    String units "micromoles per Si per liter per day";
  }
  Si_prod_bionorm_Na2SiO3_4h {
    Float32 _FillValue NaN;
    Float32 actual_range 0.499, 1.044;
    String bcodmo_name "Si_Vb";
    String description "four hour incubation biomass normalized silica production rate after the addition of sodium silicate to a final concentration of ~20uM Na2SiO3; original name=4h-32Si E Vb";
    String long_name "Mass Concentration Of Silicate In Sea Water";
    String units "per day";
  }
  Si_prod_12h {
    Float32 _FillValue NaN;
    Float32 actual_range 1.3336, 5.8146;
    String bcodmo_name "Si_rho";
    String description "twelve hour incubation silica production rate; original name=12h-32Si rho";
    String long_name "Mass Concentration Of Silicate In Sea Water";
    String units "micromoles per Si per liter per day";
  }
  Si_prod_bionorm_12h {
    Float32 _FillValue NaN;
    Float32 actual_range 0.3916, 1.023;
    String bcodmo_name "Si_Vb";
    String description "twelve hour incubation biomass normalized silica production rate; original name=12h-32Si Vb";
    String long_name "Mass Concentration Of Silicate In Sea Water";
    String units "per day";
  }
  Si_prod_Na2SiO3_12h {
    Float32 _FillValue NaN;
    Float32 actual_range 1.842, 22.5253;
    String bcodmo_name "Si_rho";
    String description "twelve hour incubation silica production rate after the addition of sodium silicate to a final concentration of ~20uM Na2SiO3; original name=12h-32Si E rho";
    String long_name "Mass Concentration Of Silicate In Sea Water";
    String units "micromoles per Si per liter per day";
  }
  Si_prod_bionorm_Na2SiO3_12h {
    Float32 _FillValue NaN;
    Float32 actual_range 0.4869, 1.7049;
    String bcodmo_name "Si_Vb";
    String description "twelve hour incubation biomass normalized silica production rate after the addition of sodium silicate to a final concentration of ~20uM Na2SiO3; original name=12h-32Si E Vb";
    String long_name "Mass Concentration Of Silicate In Sea Water";
    String units "per day";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt";
    String acquisition_description 
"See the following protocol documents:
 
[32Si Sample
Processing](\\\\\"http://dmoserv3.whoi.edu/data_docs/brzezinski/32Si_Sample_Processing.doc\\\\\")
(.doc)  
[Biogenic Si
Analysis](\\\\\"http://dmoserv3.whoi.edu/data_docs/brzezinski/bSi_Protocol.doc\\\\\")
(.doc)  
[Dissolved Si
Analysis](\\\\\"http://dmoserv3.whoi.edu/data_docs/brzezinski/dSi_Protocol.doc\\\\\")
(.doc)";
    String awards_0_award_nid "558203";
    String awards_0_award_number "OCE-1334387";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1334387";
    String awards_0_funder_name "NSF Division of Ocean Sciences";
    String awards_0_funding_acronym "NSF OCE";
    String awards_0_funding_source_nid "355";
    String awards_0_program_manager "David L. Garrison";
    String awards_0_program_manager_nid "50534";
    String cdm_data_type "Other";
    String comment 
"MUSiCC data from OC1504A, 2015 
     M. Brzezinski, PI 
    version 30 June 2016";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "info@bco-dmo.org";
    String creator_name "BCO-DMO";
    String creator_type "institution";
    String creator_url "https://www.bco-dmo.org/";
    String data_source "extract_data_as_tsv version 2.3  19 Dec 2019";
    String date_created "2016-07-01T18:58:37Z";
    String date_modified "2018-07-03T19:46:27Z";
    String defaultDataQuery "&time<now";
    String doi "10.1575/1912/bco-dmo.745784";
    Float64 Easternmost_Easting -120.81;
    Float64 geospatial_lat_max 43.654;
    Float64 geospatial_lat_min 34.551;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -120.81;
    Float64 geospatial_lon_min -124.482;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 150.5;
    Float64 geospatial_vertical_min 1.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-04-27T03:51:52Z (local files)
2024-04-27T03:51:52Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_650831.html";
    String infoUrl "https://www.bco-dmo.org/dataset/650831";
    String institution "BCO-DMO";
    String keywords "available, bco, bco-dmo, biological, bottle, bottle_pooled, bottle_rosette, brief, brief_desc, bSi, cast, chemical, chemistry, chl, chl_total, chla, chlorophyll, chlorophyll-a, concentration, concentration_of_chlorophyll_in_sea_water, cruise, cruise_id, data, dataset, date, date_utc, depth, depth_target, depth_w, desc, dmo, dSi, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Chemistry > Nitrate, Earth Science > Oceans > Ocean Chemistry > Phosphate, Earth Science > Oceans > Ocean Chemistry > Silicate, erddap, event, iso, latitude, longitude, management, mass, mass_concentration_of_phosphate_in_sea_water, mass_concentration_of_silicate_in_sea_water, mole, mole_concentration_of_nitrate_in_sea_water, n02, nitrate, no3, NO3_NO2, ocean, oceanography, oceans, office, par, PAR_percent, percent, phaeo, phosphate, photosynthetically, po4, pooled, preliminary, radiation, rosette, sample, sample_no, science, sea, seawater, Si_prod_12h, Si_prod_4h, Si_prod_bionorm_12h, Si_prod_bionorm_4h, Si_prod_bionorm_Na2SiO3_12h, Si_prod_bionorm_Na2SiO3_4h, Si_prod_Na2SiO3_12h, Si_prod_Na2SiO3_4h, silicate, station, time, time_utc, total, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "https://www.bco-dmo.org/dataset/650831/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/650831";
    Float64 Northernmost_Northing 43.654;
    String param_mapping "{'650831': {'lat': 'master - latitude', 'depth': 'master - depth', 'lon': 'master - longitude', 'ISO_DateTime_UTC': 'master - time'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/650831/parameters";
    String people_0_affiliation "University of California-Santa Barbara";
    String people_0_affiliation_acronym "UCSB-MSI";
    String people_0_person_name "Mark A. Brzezinski";
    String people_0_person_nid "50663";
    String people_0_role "Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "Rutgers University";
    String people_1_affiliation_acronym "Rutgers IMCS";
    String people_1_person_name "Kimberlee Thamatrakoln";
    String people_1_person_nid "558200";
    String people_1_role "Co-Principal Investigator";
    String people_1_role_type "originator";
    String people_2_affiliation "Woods Hole Oceanographic Institution";
    String people_2_affiliation_acronym "WHOI BCO-DMO";
    String people_2_person_name "Hannah Ake";
    String people_2_person_nid "650173";
    String people_2_role "BCO-DMO Data Manager";
    String people_2_role_type "related";
    String people_3_affiliation "Woods Hole Oceanographic Institution";
    String people_3_affiliation_acronym "WHOI BCO-DMO";
    String people_3_person_name "Ms Dicky Allison";
    String people_3_person_nid "50382";
    String people_3_role "BCO-DMO Data Manager";
    String people_3_role_type "related";
    String project "Diatom Silicification";
    String projects_0_acronym "Diatom Silicification";
    String projects_0_description 
"Description from NSF award abstract:
Diatoms, unicellular, eukaryotic photoautotrophs, are among the most ecologically successful and functionally diverse organisms in the ocean. In addition to contributing one-fifth of total global primary productivity, diatoms are also the largest group of silicifying organisms in the ocean. Thus, diatoms form a critical link between the carbon and silicon (Si) cycles. The goal of this project is to understand the molecular regulation of silicification processes in natural diatom populations to better understand the processes controlling diatom productivity in the sea. Through culture studies and two research cruises, this research will couple classical measurements of silicon uptake and silica production with molecular and biochemical analyses of Silicification-Related Gene (SiRG) and protein expression. The proposed cruise track off the West Coast of the US will target gradients in Si and iron (Fe) concentrations with the following goals: 1) Characterize the expression pattern of SiRGs, 2) Correlate SiRG expression patterns to Si concentrations, silicon uptake kinetics, and silica production rates, 3) Develop a method to normalize uptake kinetics and silica production to SiRG expression levels as a more accurate measure of diatom activity and growth, 4) Characterize the diel periodicity of silica production and SiRG expression.
It is estimated that diatoms process 240 Teramoles of biogenic silica each year and that each molecule of silicon is cycled through a diatom 39 times before being exported to the deep ocean. Decades of oceanographic and field research have provided detailed insight into the dynamics of silicon uptake and silica production in natural populations, but a molecular understanding of the factors that influence silicification processes is required for further understanding the regulation of silicon and carbon fluxes in the ocean. Characterizing the genetic potential for silicification will provide new information on the factors that regulate the distribution of diatoms and influence in situ rates of silicon uptake and silica production. This research is expected to provide significant information about the molecular regulation of silicification in natural populations and the physiological basis of Si limitation in the sea.";
    String projects_0_end_date "2016-08";
    String projects_0_geolocation "Oregon/California Coastal Upwelling Zone, between 34-44N and 120-124W";
    String projects_0_name "Linking physiological and molecular aspects of diatom silicification in field populations";
    String projects_0_project_nid "558198";
    String projects_0_start_date "2013-09";
    String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
    String publisher_type "institution";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 34.551;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "cruise_id,brief_desc";
    String summary "These data include nutrient, pigment, silica and experimental data collected aboard the OCEANUS during cruise OC1504A in the North Pacific Ocean along the California Coast from 2015-04-19 to 2015-05-06. The water samples were collected by CTDs. Silica production rates were characterized by delivering incremental increases in silicic acid (Si) along with a radioactive isotope of silicon (32Si). This is an extremely sensitive assay and can determine the maximum production rates of the community being studied and the degree that its growth is being limited by lack of Si. These data were collected by Mark Brzezinski from the University of California at Santa Barbara as part of Linking Physiological and Molecular Aspects of Diatom Silicification.";
    String time_coverage_end "2015-05-01T16:46:00Z";
    String time_coverage_start "2015-04-20T02:18:00Z";
    String title "Nutrients, pigments, silicate and experimental data collected aboard the OCEANUS during cruise OC1504A in the North Pacific Ocean from 2015-04-19 to 2015-05-06";
    String version "1";
    Float64 Westernmost_Easting -124.482;
    String xml_source "osprey2erddap.update_xml() v1.3";
  }
}

 

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Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP Data Access Protocol (DAP) and its selection constraints.

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

• (easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
• (easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
• (not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.

 

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