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   set  data   graph     files  public Current velocities from ADCP from an R/V Lowell Weicker cruise in Fisher's Island Sound (NY/
CT) in May 2012
   ?     I   M   background (external link) RSS BCO-DMO bcodmo_dataset_3713

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
attribute NC_GLOBAL acquisition_description String Current velocities were collected at 5 stations by ADCP aboard a one-day
cruise in Fisher's Island Sound on R/V Lowell Weicker.
attribute NC_GLOBAL awards_0_award_nid String 54721
attribute NC_GLOBAL awards_0_award_number String OCE-1129734
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1129734 (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 Dr David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL awards_1_award_nid String 54820
attribute NC_GLOBAL awards_1_award_number String OCE-1130033
attribute NC_GLOBAL awards_1_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1130033 (external link)
attribute NC_GLOBAL awards_1_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_1_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_1_funding_source_nid String 355
attribute NC_GLOBAL awards_1_program_manager String Dr David L. Garrison
attribute NC_GLOBAL awards_1_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Current Velocities measured with Acoustic Doppler Current Profiler
R/V Lowell Weicker - 30 May 2012
PI: George B. McManus (UConn)
Co-PI: Laura A. Katz (Smith College)
Version: 06 Sept 2012
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 2.2d 13 Jun 2019
attribute NC_GLOBAL date_created String 2012-09-06T17:20:34Z
attribute NC_GLOBAL date_modified String 2018-12-07T18:00:01Z
attribute NC_GLOBAL defaultDataQuery String &time
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.3713.1
attribute NC_GLOBAL Easternmost_Easting double -71.93639
attribute NC_GLOBAL geospatial_lat_max double 41.3061
attribute NC_GLOBAL geospatial_lat_min double 41.29669
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -71.93639
attribute NC_GLOBAL geospatial_lon_min double -71.99368
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 25.0
attribute NC_GLOBAL geospatial_vertical_min double 1.5
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/3713 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String ADCP
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 5765
attribute NC_GLOBAL instruments_0_description String The ADCP measures water currents with sound, using a principle of sound waves called the Doppler effect. A sound wave has a higher frequency, or pitch, when it moves to you than when it moves away. You hear the Doppler effect in action when a car speeds past with a characteristic building of sound that fades when the car passes.
The ADCP works by transmitting "pings" of sound at a constant frequency into the water. (The pings are so highly pitched that humans and even dolphins can't hear them.) As the sound waves travel, they ricochet off particles suspended in the moving water, and reflect back to the instrument. Due to the Doppler effect, sound waves bounced back from a particle moving away from the profiler have a slightly lowered frequency when they return. Particles moving toward the instrument send back higher frequency waves. The difference in frequency between the waves the profiler sends out and the waves it receives is called the Doppler shift. The instrument uses this shift to calculate how fast the particle and the water around it are moving.
Sound waves that hit particles far from the profiler take longer to come back than waves that strike close by. By measuring the time it takes for the waves to bounce back and the Doppler shift, the profiler can measure current speed at many different depths with each series of pings. (More from WHOI instruments listing).
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/115/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Acoustic Doppler Current Profiler
attribute NC_GLOBAL instruments_0_instrument_nid String 405
attribute NC_GLOBAL instruments_0_supplied_name String Acoustic Doppler Current Profiler
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, cast, chemical, data, dataset, date, day, day_local, depth, diff, dmo, erddap, iso, latitude, local, longitude, management, month, month_local, oceanography, office, preliminary, sta, start, time, time_diff, time_start_local, u, u_m, v, v_m, year
attribute NC_GLOBAL license String The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/3713 (external link)
attribute NC_GLOBAL Northernmost_Northing double 41.3061
attribute NC_GLOBAL param_mapping String {'3713': {'depth': 'flag - depth', 'lon_start': 'flag - longitude', 'lat_start': 'flag - latitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/3713/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of Connecticut
attribute NC_GLOBAL people_0_affiliation_acronym String UConn - Avery Point
attribute NC_GLOBAL people_0_person_name String Dr George B. McManus
attribute NC_GLOBAL people_0_person_nid String 51375
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 Smith College
attribute NC_GLOBAL people_1_person_name String Dr Laura A. Katz
attribute NC_GLOBAL people_1_person_nid String 51376
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 University of Connecticut
attribute NC_GLOBAL people_2_affiliation_acronym String UConn - Avery Point
attribute NC_GLOBAL people_2_person_name String Dr George B. McManus
attribute NC_GLOBAL people_2_person_nid String 51375
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 Shannon Rauch
attribute NC_GLOBAL people_3_person_nid String 51498
attribute NC_GLOBAL people_3_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL project String Diversity and dynamics of planktonic ciliates - what can next-generation sequencing technologies tell us?
attribute NC_GLOBAL projects_0_acronym String CiliateSequencing
attribute NC_GLOBAL projects_0_description String The Ocean's biomass and diversity are predominantly microbial, yet this aspect of diversity remains underexplored. Efforts in recent years have begun to document microbial diversity in marine systems, and to elucidate the processes that structure assemblages across space and time. This project focuses on two important sister clades of microbial eukaryotes, the oligotrich and choreotrich ciliates. These organisms comprise a major component of planktonic food webs as they graze on phytoplankton, and are in turn eaten by zooplankton and larval fish.
Earlier molecular work on ciliate diversity relied on light microscopy, construction of clone libraries and Sanger sequencing. This revealed a high degree of cryptic diversity (similar species that are genetically distinct), which is surprising, given the long-held idea that all microbes are globally distributed and that few species exist, at least as compared to animals and plants. This past work also showed that ciliate assemblages contain a few highly abundant forms and many rare ones, consistent with the concept of a "rare biosphere". However, these methods are limited by high costs of both labor and materials, so that efforts to sample any local assemblage comprehensively usually resulted in undersaturation (repeated sampling continued to uncover new species). Next generation approaches are needed to truly assess the depths of biodiversity in planktonic ciliates.
This project brings together investigators with strengths in ecology, taxonomy and oceanography (PI McManus) and in molecular evolution, systematics and bioinformatics (PI Katz). Pyrosequencing will be used to sample the oligotrich and choreotrich ciliates ’to exhaustion’ in coastal environments. Denaturing gradient gel electrophoresis (DGGE), a technique that generates a fingerprint of the diversity in a sample, will be used to pre-select samples for pyrosequencing based on where strong gradients are observed in the composition of assemblages in relation to environmental factors (density fronts, thermolclines, etc.). Using these approaches, combined with the informatics pipeline already in place, this project will address three specific objectives:
Objective 1. Determine the spatial scale of variability in ciliate diversity by measuring how ciliate assemblages change over meter, kilometer, 100 km, and basin scales.
Objective 2. Assess the contributions of different size classes of ciliates to overall assemblage diversity.
Objective 3. Experimentally evaluate factors that control the temporal shift of individual species from rarity to commonness in a natural assemblage, and vice versa.
Note: See the related collaborative project, "Patterns of diversity in planktonic ciliates: spatio-temporal scales and community assembly in the coastal ocean", funded by awards OCE-1435515 and OCE-1436003.
attribute NC_GLOBAL projects_0_end_date String 2015-08
attribute NC_GLOBAL projects_0_geolocation String NW Atlantic Continental Shelf
attribute NC_GLOBAL projects_0_name String Diversity and dynamics of planktonic ciliates - what can next-generation sequencing technologies tell us?
attribute NC_GLOBAL projects_0_project_nid String 2164
attribute NC_GLOBAL projects_0_project_website String http://microzooplankton.uconn.edu (external link)
attribute NC_GLOBAL projects_0_start_date String 2012-07
attribute NC_GLOBAL publisher_name String Shannon Rauch
attribute NC_GLOBAL publisher_role String BCO-DMO Data Manager(s)
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 41.29669
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v29
attribute NC_GLOBAL subsetVariables String month_local, day_local, year, time_diff
attribute NC_GLOBAL summary String This dataset contains northward and eastward components of current velocity measured by Acoustic Doppler Current Profiler (ADCP). Velocity components are given at every 0.5 meter depth.
attribute NC_GLOBAL title String Current velocities from ADCP from an R/V Lowell Weicker cruise in Fisher's Island Sound (NY/CT) in May 2012
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -71.99368
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.5-beta
variable month_local   String  
attribute month_local description String Two-digit month, local time (e.g. 05 = May)
attribute month_local ioos_category String Time
attribute month_local long_name String Month Local
attribute month_local units String unitless
variable day_local   byte  
attribute day_local _FillValue byte 127
attribute day_local actual_range byte 30, 30
attribute day_local description String 2-digit day of month, local time
attribute day_local ioos_category String Time
attribute day_local long_name String Day Local
attribute day_local units String unitless
variable year   short  
attribute year _FillValue short 32767
attribute year actual_range short 2012, 2012
attribute year description String 4-digit year, local time
attribute year ioos_category String Time
attribute year long_name String Year
attribute year units String unitless
variable sta   byte  
attribute sta _FillValue byte 127
attribute sta actual_range byte 1, 5
attribute sta description String Station ID number.
attribute sta ioos_category String Unknown
attribute sta long_name String Sta
attribute sta units String unitless
variable cast   byte  
attribute cast _FillValue byte 127
attribute cast actual_range byte 0, 4
attribute cast description String Cast number.
attribute cast ioos_category String Unknown
attribute cast long_name String Cast
attribute cast units String unitless
variable time_start_local   String  
attribute time_start_local description String Local time at start of the measurements.
attribute time_start_local ioos_category String Time
attribute time_start_local long_name String Time Start Local
attribute time_start_local units String HHMM.mm
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 41.29669, 41.3061
attribute latitude axis String Y
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String Latitude at start of measurement. North = positive.
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude source_name String lat_start
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 -71.99368, -71.93639
attribute longitude axis String X
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String Longitude at start of measurement. West = negative.
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude source_name String lon_start
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable ISO_DateTime_Local   String  
attribute ISO_DateTime_Local description String Date and time formatted to ISO8601 standard (local time). See time_diff for time zone info. Format:�yyyy-MM-dd'T'HH:mm:ss'Z'
attribute ISO_DateTime_Local ioos_category String Time
attribute ISO_DateTime_Local long_name String ISO Date Time Local
attribute ISO_DateTime_Local source_name String ISO_DateTime_Local
attribute ISO_DateTime_Local units String unitless
variable time_diff   byte  
attribute time_diff _FillValue byte 127
attribute time_diff actual_range byte 4, 4
attribute time_diff colorBarMaximum double 10.0
attribute time_diff colorBarMinimum double -10.0
attribute time_diff description String The number of hours added to local time to convert to GMT.
attribute time_diff ioos_category String Time
attribute time_diff long_name String Time Diff
attribute time_diff units String hours
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 1.5, 25.0
attribute depth axis String Z
attribute depth colorBarMaximum double 8000.0
attribute depth colorBarMinimum double -8000.0
attribute depth colorBarPalette String TopographyDepth
attribute depth description String Depth, in meters. Velocity components are given at every 0.5 meter.
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable u_m   float  
attribute u_m _FillValue float NaN
attribute u_m actual_range float -0.2936, 0.5865
attribute u_m description String Eastward component of current velocity, in meters per second. Eastward flow is positive.
attribute u_m ioos_category String Unknown
attribute u_m long_name String U M
attribute u_m units String m/s
variable v_m   float  
attribute v_m _FillValue float NaN
attribute v_m actual_range float -0.1182, 0.2457
attribute v_m description String Northward component of current velocity, in meters per second. Northward flow is positive.
attribute v_m ioos_category String Unknown
attribute v_m long_name String V M
attribute v_m units String m/s

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


 
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