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Dataset Title:  Nearshore Larval Transport (NLT) temperature time-series data from nearshore
La Jolla, Southern California, 2014-2016
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_709181)
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Files | Make a graph
Variable ?   Optional
Constraint #1 ?
Constraint #2 ?
   Minimum ?
   Maximum ?
 sampling_year (unitless) ?          2014    2016
 season (unitless) ?          "fall"    "spring"
 site (unitless) ?          "1-meter"    "intertidal"
 site_name (unitless) ?          "Birdrock"    "Surfmoor"
 depth (m) ?          -2.0    7.9
  < slider >
 latitude (degrees_north) ?          32.8098    32.8689
  < slider >
 longitude (degrees_east) ?          -117.281    -117.258
  < slider >
 month (unitless) ?          1    12
 year (unitless) ?          2014    2016
 day (unitless) ?          1    31
 hour (unitless) ?          0    23
 time (ISO Date Time UTC, UTC) ?          2014-04-18T18:00:00Z    2016-11-20T00:00:00Z
  < slider >
 yrday_utc (unitless) ?          1.0    365.95833
 depth_w (Depth, meters) ?          0.39    10.23
 temp (Temperature, degrees Celsius) ?          10.87    27.72
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")

File type: (more info)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  sampling_year {
    Int16 _FillValue 32767;
    Int16 actual_range 2014, 2016;
    String bcodmo_name "year";
    String description "sampling year";
    String long_name "Sampling Year";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/";
    String units "unitless";
  season {
    String bcodmo_name "season";
    String description "season: spring or fall";
    String long_name "Season";
    String units "unitless";
  site {
    String bcodmo_name "site";
    String description "depth specific site";
    String long_name "Site";
    String units "unitless";
  site_name {
    String bcodmo_name "site";
    String description "site name if available";
    String long_name "Site Name";
    String units "unitless";
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue NaN;
    Float64 actual_range -2.0, 7.9;
    String axis "Z";
    String bcodmo_name "depth";
    String description "depth at which temperature was recorded";
    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";
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 32.8098, 32.8689;
    String axis "Y";
    String bcodmo_name "latitude";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "latitude; north is positive";
    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 -117.281, -117.258;
    String axis "X";
    String bcodmo_name "longitude";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "longitude; east is positive";
    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";
  month {
    Byte _FillValue 127;
    Byte actual_range 1, 12;
    String bcodmo_name "month";
    String description "month";
    String long_name "Month";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/MNTHXXXX/";
    String units "unitless";
  year {
    Int16 _FillValue 32767;
    Int16 actual_range 2014, 2016;
    String bcodmo_name "year";
    String description "year";
    String long_name "Year";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/";
    String units "unitless";
  day {
    Byte _FillValue 127;
    Byte actual_range 1, 31;
    String bcodmo_name "day";
    String description "day";
    String long_name "Day";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/DAYXXXXX/";
    String units "unitless";
  hour {
    Byte _FillValue 127;
    Byte actual_range 0, 23;
    String bcodmo_name "hour_gmt";
    String description "hour";
    String long_name "Hour";
    String units "unitless";
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.397844e+9, 1.4796e+9;
    String axis "T";
    String bcodmo_name "ISO_DateTime_UTC";
    String description "ISO formatted date and time: yyyy-mm-ddThh:mm:ss";
    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";
  yrday_utc {
    Float64 _FillValue NaN;
    Float64 actual_range 1.0, 365.95833;
    String bcodmo_name "yrday_utc";
    String description "UTC day and decimal time; as 326.5 for the 326th day of the year or November 22 at 1200 hours (noon)";
    String long_name "Yrday Utc";
    String units "unitless";
  depth_w {
    Float32 _FillValue NaN;
    Float32 actual_range 0.39, 10.23;
    String bcodmo_name "depth_w";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String description "depth of the water";
    String long_name "Depth";
    String standard_name "depth";
    String units "meters";
  temp {
    Float32 _FillValue NaN;
    Float32 actual_range 10.87, 27.72;
    String bcodmo_name "temperature";
    String description "temperature";
    String long_name "Temperature";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/TEMPP901/";
    String units "degrees Celsius";
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt";
    String acquisition_description 
"Current profilers, pressure sensors and temperature sensors mounted on bottom
Refer to the following sampling reports for details:  
    String awards_0_award_nid "505563";
    String awards_0_award_number "OCE-1357290";
    String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward?AWD_ID=1357290";
    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 awards_1_award_nid "505564";
    String awards_1_award_number "OCE-1357327";
    String awards_1_data_url "http://www.nsf.gov/awardsearch/showAward?AWD_ID=1357327";
    String awards_1_funder_name "NSF Division of Ocean Sciences";
    String awards_1_funding_acronym "NSF OCE";
    String awards_1_funding_source_nid "355";
    String awards_1_program_manager "David L. Garrison";
    String awards_1_program_manager_nid "50534";
    String cdm_data_type "Other";
    String comment 
"water temperature and depth 2014-2016 time series: intertidal through 8-meter sites 
   Southern California nearshore 
   PI: S. Lentz (WHOI), N. Reyns (USD), J. Pineda (WHOI) 
   version: 2017-07-06";
    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 "2017-07-19T15:06:31Z";
    String date_modified "2020-01-08T15:01:01Z";
    String defaultDataQuery "&amp;time&lt;now";
    String doi "10.1575/1912/bco-dmo.709181.1";
    Float64 Easternmost_Easting -117.258;
    Float64 geospatial_lat_max 32.8689;
    Float64 geospatial_lat_min 32.8098;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -117.258;
    Float64 geospatial_lon_min -117.281;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 7.9;
    Float64 geospatial_vertical_min -2.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2020-07-13T01:25:28Z (local files)
2020-07-13T01:25:28Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_709181.html";
    String infoUrl "https://www.bco-dmo.org/dataset/709181";
    String institution "BCO-DMO";
    String instruments_0_dataset_instrument_nid "709205";
    String instruments_0_description "Records temperature data over a period of time.";
    String instruments_0_instrument_name "Temperature Logger";
    String instruments_0_instrument_nid "639396";
    String keywords "bco, bco-dmo, biological, chemical, data, dataset, date, day, depth, depth_temp, depth_w, dmo, erddap, hour, iso, latitude, longitude, management, month, name, oceanography, office, preliminary, sampling, sampling_year, season, site, site_name, temperature, time, year, yrday, yrday_utc";
    String license "https://www.bco-dmo.org/dataset/709181/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/709181";
    Float64 Northernmost_Northing 32.8689;
    String param_mapping "{'709181': {'lat': 'master - latitude', 'lon': 'master - longitude', 'ISO_DateTime_UTC': 'flag - time', 'depth_temp': 'master - depth'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/709181/parameters";
    String people_0_affiliation "Woods Hole Oceanographic Institution";
    String people_0_affiliation_acronym "WHOI";
    String people_0_person_name "Steve Lentz";
    String people_0_person_nid "50422";
    String people_0_role "Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "Woods Hole Oceanographic Institution";
    String people_1_affiliation_acronym "WHOI";
    String people_1_person_name "Jesus Pineda";
    String people_1_person_nid "472830";
    String people_1_role "Co-Principal Investigator";
    String people_1_role_type "originator";
    String people_2_affiliation "University of San Diego";
    String people_2_affiliation_acronym "USD";
    String people_2_person_name "Nathalie Reyns";
    String people_2_person_nid "505561";
    String people_2_role "Co-Principal Investigator";
    String people_2_role_type "originator";
    String people_3_affiliation "Woods Hole Oceanographic Institution";
    String people_3_affiliation_acronym "WHOI BCO-DMO";
    String people_3_person_name "Nancy Copley";
    String people_3_person_nid "50396";
    String people_3_role "BCO-DMO Data Manager";
    String people_3_role_type "related";
    String project "Nearshore larval transport,RAPID_Settlement_Hydrodynamics";
    String projects_0_acronym "Nearshore larval transport";
    String projects_0_description 
"Description from NSF award abstract:
Providing an award for this study will provide essential knowledge required for management of coastal resources. This study addresses near shore cross-shore larval transport processes that operate over wide geographic areas in open coast settings, namely larval transport by wave circulation / Stokes drift, and by internal tidal bores. Larval transport by wave circulation / Stokes drift is a ubiquitous process that has not been studied observationally, and it is not known how internal tidal bores deliver larvae to intertidal habitats. This project will examine near shore (region between 20 m depth and intertidal) physical and biological processes that account for the delivery of larvae to adult habitats. The study system in Southern California shares similarities with most other temperate areas and we will study marine taxa that are widely distributed and successful in a variety of environments.
Recent studies suggest that larval transport in the near shore zone plays a central role in larval dispersal and connectivity of shallow water species. These recent advances, however, have not been matched with process-oriented studies addressing circulation and behavioral processes at the appropriate temporal and spatial scales, and only a few larval transport mechanisms have been considered for near shore open coastlines. Recent advances in our understanding of hydrodynamic processes driving cross-shore flows and growing awareness of the importance of the processes to larval transport, however, make this study timely. The investigators hypothesize that a series of physical and biological events results in the delivery of invertebrate larvae to the intertidal habitat. These events include physical transport due to wave circulation / Stokes drift near the surface and internal tide circulation near the bottom, alteration of behavior for terminal larval stages, and larval use of \"adaptive\" behavioral responses to exploit event-dependent flows. Further, they suggest that the predominance of wave circulation / Stokes drift and internal tide circulation varies seasonally, with internal tidal bores important in spring/summer, when the water column is well-stratified, and wave circulation / Stokes drift more pervasive in fall/winter, coinciding with winter storms. The hypotheses in this study will be tested with estimates of physical transport, larval supply and settlement. These measurements will be combined with use of adaptive sampling to test the dependence of larval vertical distribution on changes in hydrodynamic conditions.
Results from this study will have important ecological implications as wave circulation / Stokes drift and internal motions may represent critical and regular transport mechanisms for larvae of marine organisms that must return to near shore habitats to complete their life cycle, thereby impacting population connectivity and management strategies used by coastal planners (e.g., ecosystem-based fisheries management, placement of Marine Protected Areas).";
    String projects_0_end_date "2016-12";
    String projects_0_geolocation "Southern California";
    String projects_0_name "Nearshore larval transport: physical and biological processes";
    String projects_0_project_nid "472824";
    String projects_0_start_date "2014-01";
    String projects_1_acronym "RAPID_Settlement_Hydrodynamics";
    String projects_1_description 
"NSF Award Abstract:
Understanding how larvae are transported in the coastal ocean is key for characterizing the population fluctuations of marine organisms. Studies demonstrate that larvae of species that inhabit shallow waters can behaviorally respond to changing oceanographic conditions by moving vertically into currents that can promote their transport to coastal, nearshore habitats where they settle to bottom habitats and complete their life cycle. However, the oceanographic mechanisms that promote such transport, and how they might be impacted by infrequent events such as El Ni�o, are poorly resolved. Given that El Ni�o events might increase in frequency and magnitude under climate change, it is imperative to assess how El Ni�o affects larval transport and larval settlement. To this end, this study will use an unprecedented set of nearshore biological and physical measurements spanning pre-El-Ni�o, during El Ni�o, and the predicted return to El Ni�o neutral conditions, to test mechanistically how larval transport and settlement respond in a nearshore coastal environment. This project will also provide educational and research opportunities for students at the University of San Diego, a liberal arts university. At least one laboratory exercise demonstrating the impacts of El Ni�o on larval transport and settlement will be developed for undergraduate students, and students will be recruited to participate in all aspects of the project to provide them with hands-on research experience. This research will form the basis for the thesis work of at least one M.S. graduate student. Finally, given that the research falls within a Marine Protected Area, results will be broadly disseminated and shared with coastal managers and the CA Department of Fish and Wildlife.
Larval transport and settlement are fundamental processes for understanding the population dynamics of benthic invertebrates. Previous studies and unpublished observations indicate that El Ni�o events profoundly impact community and population processes, and in Southern California, El Ni�o effects range from alteration of larval transport and settlement of local populations, to the geographic expansion of subtropical species. This research will test the hypothesis that the current (2015-2016) El Ni�o event will result in a reduction of barnacle larval transport and settlement in Southern California nearshore habitats. Two mechanisms might be involved; first, a deepening of the thermocline forced by El Ni�o would result in reduction of larval transport by internal tidal bores, a mechanism that requires shallowing of the thermocline. Second, the distribution of larvae of littoral barnacles would be deeper, more offshore, and less constrained to nearshore habitats during El Ni�o than in El Ni�o neutral conditions, resulting in a reduction of nearshore larval abundance and settlement. The effects of El Ni�o on nearshore circulation, hydrography, larval transport and settlement in Bird Rock, Southern California, will be measured by a) deploying an array of instrumentation to measure temperature, pressure (waves) and currents; b) measuring daily barnacle larval settlement, and; c) assessing cross-shore and depth distribution of invertebrate larvae. These observations will be contrasted with two years of comparable observations taken at Bird Rock in 2014 (El Ni�o neutral conditions) and 2015 (during El Ni�o). Additionally, the investigators will measure weekly settlement at Bird Rock, and at Dike Rock, a site 7 km to the north, where previous observations at the end of the 1997/1998 El Ni�o indicated that barnacle settlement was very high. This will enable the evaluation of the generality of the settlement response as El Ni�o conditions eclipse, and examination of how settlement varies along a coastline.";
    String projects_1_end_date "2018-02";
    String projects_1_geolocation "Southern California";
    String projects_1_name "RAPID:  Nearshore settlement and hydrodynamics in Southern California during El Nino, and the transition to normal ocean conditions: boom and bust?";
    String projects_1_project_nid "638919";
    String projects_1_start_date "2016-03";
    String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
    String publisher_type "institution";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 32.8098;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "This dataset includes temperature and water depth time series data from intertidal, 1, 2, 5, 6, and 8-meter sites located nearshore Calumet Park, La Jolla, Southern California, April 2014 through November 2016.";
    String time_coverage_end "2016-11-20T00:00:00Z";
    String time_coverage_start "2014-04-18T18:00:00Z";
    String title "Nearshore Larval Transport (NLT) temperature time-series data from nearshore La Jolla, Southern California, 2014-2016";
    String version "1";
    Float64 Westernmost_Easting -117.281;
    String xml_source "osprey2erddap.update_xml() v1.3";


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