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Title Sum-
Institution Dataset ID
     data   graph     files  public Event logs from R/V Oceanus, R/V Endeavor cruises OC468-02, EN496, EN509, EN510 in the Gulf
of Mexico; 2010-2012 (GoMX - N2 Fixation project)
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The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt
attribute NC_GLOBAL acquisition_description String Generated by science party aboard vessel
attribute NC_GLOBAL awards_0_award_nid String 54918
attribute NC_GLOBAL awards_0_award_number String OCE-0928495
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0928495 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Version: 15 March 2013
PIs: Montoya, Villareal
Event Logs - All Cruises
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2013-03-15T18:45:00Z
attribute NC_GLOBAL date_modified String 2019-10-29T16:24:06Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.3895.1
attribute NC_GLOBAL Easternmost_Easting double -75.00037
attribute NC_GLOBAL geospatial_lat_max double 30.35938
attribute NC_GLOBAL geospatial_lat_min double 25.81505
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -75.00037
attribute NC_GLOBAL geospatial_lon_min double -95.51763
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/3895 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, block, chemical, cruise, CruiseId, data, dataset, date, Date_Local, dmo, erddap, evt, iso, ISO_DateTime_UTC, latitude, Latitude_Deg_N, Latitude_Min_N, lease, Lease_Block, local, longitude, Longitude_Deg_W, Longitude_Min_W, management, notes, number, oceanography, office, Op_Number, operation, preliminary, seq, Seq_Number, stn, time, Time_Local
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/3895/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/3895 (external link)
attribute NC_GLOBAL Northernmost_Northing double 30.35938
attribute NC_GLOBAL param_mapping String {'3895': {'Latitude': 'flag - latitude', 'Longitude': 'flag - longitude', 'ISO_DateTime_UTC': 'flag - time'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/3895/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Georgia Institute of Technology
attribute NC_GLOBAL people_0_affiliation_acronym String Georgia Tech
attribute NC_GLOBAL people_0_person_name String Joseph P. Montoya
attribute NC_GLOBAL people_0_person_nid String 51125
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String University of Texas at Austin
attribute NC_GLOBAL people_1_affiliation_acronym String UT Austin
attribute NC_GLOBAL people_1_person_name String Tracy A. Villareal
attribute NC_GLOBAL people_1_person_nid String 51591
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String Georgia Institute of Technology
attribute NC_GLOBAL people_2_affiliation_acronym String Georgia Tech
attribute NC_GLOBAL people_2_person_name String Joseph P. Montoya
attribute NC_GLOBAL people_2_person_nid String 51125
attribute NC_GLOBAL people_2_role String Contact
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL people_3_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_3_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_3_person_name String Stephen R. Gegg
attribute NC_GLOBAL people_3_person_nid String 50910
attribute NC_GLOBAL people_3_role String Data Manager
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL people_4_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_4_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_4_person_name String Stephen R. Gegg
attribute NC_GLOBAL people_4_person_nid String 50910
attribute NC_GLOBAL people_4_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_4_role_type String related
attribute NC_GLOBAL project String GoMX - N2 Fixation
attribute NC_GLOBAL projects_0_acronym String GoMX - N2 Fixation
attribute NC_GLOBAL projects_0_description String From the NSF proposal abstract
This project will study the interplay of physical, chemical, and biological factors in supplying nitrogen, an essential nutrient, to temperate coastal and offshore waters of the Gulf of Mexico. The Gulf is an economically important but understudied marginal sea with major commercial and recreational fisheries as well as extensive fossil fuel deposits. Diazotrophic (N2-fixing) cyanobacteria bloom regularly in offshore and coastal waters of the Gulf and the limited data suggest that they contribute significant quantities of both nitrogen and carbon to the pelagic food web. These diazotrophs may play also a critical role in supplying N to other organisms, including the ichthyotoxic red tide dinoflagellate Karenia brevis. Despite its importance, little is currently known of the factors that promote N2-fixation in the Gulf or the relative significance of different physical and biological processes in creating conditions that favor N limitation in the water column. The Gulf of Mexico is strongly influenced by both riverine inputs and advective processes, providing an excellent model system for studying nutrient dynamics, physical forcing of productivity, terrestrial-oceanic linkages, and the potential impact of land use and climate change on marine ecosystems.
The relatively small basin of the Gulf of Mexico provides an opportunity to quantify and study interactions among physical, chemical, and biological processes relevant to a broad range of other coastal and oceanic systems. Land-use and climate change are likely to affect the circulation and hydrography of the Gulf, as well as the magnitude and nature of riverine inputs, all with uncertain impacts on the biogeochemistry of the Gulf of Mexico. This research will provide timely insights into these processes and will generate a baseline of understanding for evaluating and predicting the impact of future land use and climate changes in the system. This project will make an important contribution to our understanding of the factors that regulate N2-fixation and its role in supporting the biota in temperate waters. The following specific goals are included in the work:
1. Identify the major diazotroph groups in the Gulf of Mexico and characterize their distribution and activity in different regions and water masses.
2. Quantify the impact of advective processes, mesoscale features, and riverine inputs on nutrient limitation and N2-fixation in the Gulf, and evaluate the controls on N2-fixation and the degree of spatial and temporal niche differentiation among diazotroph assemblages in different regions affected by these processes.
3. Use satellite data and physical models to scale up our measurements spatially and to evaluate the regional significance of N2-fixation in the Gulf of Mexico. The researchers will also use a coupled physical/biological model to explore variability in the physical forcing and the potential impact of likely land use and climate change scenarios in altering nutrient dynamics and N2-fixation in the Gulf of Mexico.
The investigators and their institutions have a strong commitment to undergraduate and graduate education. This project includes support for graduate students, a technician, and undergraduates. In addition to peer-reviewed papers and websites, workshops aimed at K-12 teachers, and a program involving high school teachers in research will be used to disseminate the results of this project broadly in the local community. The investigators are committed to increasing the diversity of the ocean science community and are active in recruiting and training efforts at their institutions.
attribute NC_GLOBAL projects_0_end_date String 2012-10
attribute NC_GLOBAL projects_0_geolocation String Northern Gulf of Mexico
attribute NC_GLOBAL projects_0_name String Nitrogen fixation, nutrient supply and biological production in the Gulf of Mexico
attribute NC_GLOBAL projects_0_project_nid String 2144
attribute NC_GLOBAL projects_0_start_date String 2009-10
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 25.81505
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Event logs from R/V Oceanus, R/V Endeavor cruises OC468-02, EN496, EN509, EN510 in the Gulf of Mexico; 2010-2012 (GoMX - N2 Fixation project)
attribute NC_GLOBAL time_coverage_start String 1999-11-30T00:00:00Z
attribute NC_GLOBAL title String Event logs from R/V Oceanus, R/V Endeavor cruises OC468-02, EN496, EN509, EN510 in the Gulf of Mexico; 2010-2012 (GoMX - N2 Fixation project)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -95.51763
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable CruiseId   String  
attribute CruiseId bcodmo_name String cruiseid
attribute CruiseId description String Cruise Id
attribute CruiseId long_name String Cruise Id
attribute CruiseId units String text
variable Op_Number   String  
attribute Op_Number bcodmo_name String operation
attribute Op_Number description String Operation Number in xxx.xx format
attribute Op_Number long_name String Op Number
attribute Op_Number units String unitless
variable Stn   String  
attribute Stn bcodmo_name String station
attribute Stn description String Station Number (First 3 digits of Op_Number)
attribute Stn long_name String STN
attribute Stn units String dimensionless
variable Evt   String  
attribute Evt bcodmo_name String event
attribute Evt description String Event Number (Last digits after decimal point of Op_Number)
attribute Evt long_name String Evt
attribute Evt nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/ (external link)
attribute Evt units String dimensionless
variable Date_Local   String  
attribute Date_Local bcodmo_name String date_local
attribute Date_Local description String Date Local in YYYYMMDD format
attribute Date_Local long_name String Date Local
attribute Date_Local units String unitless
variable Time_Local   String  
attribute Time_Local bcodmo_name String time_local
attribute Time_Local description String Time Local in HHMM format
attribute Time_Local long_name String Time Local
attribute Time_Local units String unitless
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 9.4392E8, NaN
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String Date/Time UTC
attribute time ioos_category String Time
attribute time long_name String ISO Date Time UTC
attribute time nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/ (external link)
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
variable Latitude_Deg_N   byte  
attribute Latitude_Deg_N _FillValue byte 127
attribute Latitude_Deg_N actual_range byte 25, 30
attribute Latitude_Deg_N bcodmo_name String latitude
attribute Latitude_Deg_N colorBarMaximum double 90.0
attribute Latitude_Deg_N colorBarMinimum double -90.0
attribute Latitude_Deg_N description String Latitude Degrees North
attribute Latitude_Deg_N long_name String Latitude
attribute Latitude_Deg_N nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute Latitude_Deg_N standard_name String latitude
attribute Latitude_Deg_N units String whole degrees
variable Latitude_Min_N   String  
attribute Latitude_Min_N bcodmo_name String latitude
attribute Latitude_Min_N description String Latitude Minutes North
attribute Latitude_Min_N long_name String Latitude
attribute Latitude_Min_N nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute Latitude_Min_N standard_name String latitude
attribute Latitude_Min_N units String decimal minutes
variable Longitude_Deg_W   byte  
attribute Longitude_Deg_W _FillValue byte 127
attribute Longitude_Deg_W actual_range byte 75, 95
attribute Longitude_Deg_W bcodmo_name String longitude
attribute Longitude_Deg_W colorBarMaximum double 180.0
attribute Longitude_Deg_W colorBarMinimum double -180.0
attribute Longitude_Deg_W description String Longitude Degrees West
attribute Longitude_Deg_W long_name String Longitude
attribute Longitude_Deg_W nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute Longitude_Deg_W standard_name String longitude
attribute Longitude_Deg_W units String whole degrees
variable Longitude_Min_W   String  
attribute Longitude_Min_W bcodmo_name String longitude
attribute Longitude_Min_W description String Longitude Minutes West
attribute Longitude_Min_W long_name String Longitude
attribute Longitude_Min_W nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute Longitude_Min_W standard_name String longitude
attribute Longitude_Min_W units String decimal minutes
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 25.81505, 30.35938
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String Latitude (South is negative)
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -95.51763, -75.00037
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String Longitude (West is negative)
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable Lease_Block   String  
attribute Lease_Block bcodmo_name String site
attribute Lease_Block description String Lease Block
attribute Lease_Block long_name String Lease Block
attribute Lease_Block units String text
variable Operation   String  
attribute Operation bcodmo_name String operation
attribute Operation description String Operation
attribute Operation long_name String Operation
attribute Operation units String text
variable Seq_Number   String  
attribute Seq_Number bcodmo_name String sampling_sequence
attribute Seq_Number description String Sequence Number:
Things that happen multiple times, are given a unique sequence number (ROV dives, CTD, MUC)
ROV dives will be sequentially numbered (1,2,3,4,5) across stations
CTDs will be sequentially numbered (1,2,3,4,5) across stations
MUCs will be sequentially numbered (1,2,3,4,5) across stations
attribute Seq_Number long_name String Seq Number
attribute Seq_Number units String dimensionless
variable Notes   String  
attribute Notes bcodmo_name String activity_and_comments
attribute Notes description String Activity and Comments
attribute Notes long_name String Notes
attribute Notes units String text

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.

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