LDL LDL's ERDDAP
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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL acknowledgement String Centurioni, Luca R., Braasch, Lancelot, and Schönau, Martha C. (2025): Global Drifter Program 3-Hourly, Real-Time, Time Series of Mean Wave Period, 2015-Present. Lagrangian Drifter Laboratory, Scripps Institution of Oceanography. Dataset. https://doi.org/10.57969/S9J01S
attribute NC_GLOBAL cdm_data_type String Point
attribute NC_GLOBAL Conventions String COARDS, CF-1.10, ACDD-1.3
attribute NC_GLOBAL creator_country String USA
attribute NC_GLOBAL creator_institution String UCSD SIO
attribute NC_GLOBAL creator_name String LDL
attribute NC_GLOBAL creator_sector String academic
attribute NC_GLOBAL creator_type String group
attribute NC_GLOBAL creator_url String https://ldl.ucsd.edu/ (external link)
attribute NC_GLOBAL Easternmost_Easting double 179.9986
attribute NC_GLOBAL featureType String Point
attribute NC_GLOBAL geospatial_lat_max double 72.97878
attribute NC_GLOBAL geospatial_lat_min double -23.30343
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 179.9986
attribute NC_GLOBAL geospatial_lon_min double -179.9974
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://ldl.ucsd.edu/ldl/gdp-drifter-data (external link)
attribute NC_GLOBAL institution String UCSD SIO
attribute NC_GLOBAL keywords String 2015-present, 3-hourly, average_period, california, control, current, currents, data, degrees, deigo, direction, drifter, earth, east, given, global, gps, gts, hour, hourly, identifier, institution, iridium, lagrangian drifter laboratory, latitude, ldl, longitude, mean, meteorological, meteorology, microsvp, north, ocean, oceanography, oceans, organisation, organization, period, positioning, present, program, quality, real, real time, real-time, realtime, san, sap, science, scripps, sea, sea_surface_wave_mean_period, seawater, second, series, sio, spd, speed, sst, statistics, status, surface, surface velocity program, surface waves, system, telecommunications, temperature, time, time series, timestamp, ucsd, university, velocity, water, wave, waves, wmo, wmo_id, world
attribute NC_GLOBAL license String Copyright Notice This data is Copyright © 2025 The Regents of the University of California. All Rights Reserved. Permission to copy, modify, and distribute this data and its documentation for educational, research and non-profit purposes, without fee, and without a written agreement is hereby granted, provided that the above copyright notice, this paragraph and the following three paragraphs appear in all copies. Permission to make commercial use of this data may be obtained by contacting: Office of Innovation and Commercialization 9500 Gilman Drive, Mail Code 0910 University of California La Jolla, CA 92093-0910 innovation@ucsd.edu  This data and documentation are copyrighted by The Regents of the University of California. The data and documentation are supplied “as is”, without any accompanying services from The Regents. The Regents does not warrant that the operation of the program will be uninterrupted or error-free. The end-user understands that the program was developed for research purposes and is advised not to rely exclusively on the program for any reason. IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS DATA AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE DATA PROVIDED HEREUNDER IS ON AN “AS IS” BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
attribute NC_GLOBAL Northernmost_Northing double 72.97878
attribute NC_GLOBAL publisher_email String ldl-datasets [at] ucsd [dot] edu
attribute NC_GLOBAL publisher_institution String UCSD SIO
attribute NC_GLOBAL publisher_name String Lagrangian Drifter Laboratory (LDL)
attribute NC_GLOBAL publisher_type String group
attribute NC_GLOBAL reference_doi String https://doi.org/10.57969/S9J01S (external link)
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -23.30343
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL summary String Global time series of 3-hourly, real-time mean wave period (Ta) measured by Directional Wave Spectra Drifters (DWSDs), where Ta is defined as the frequency of mean wave energy averaged over the observed frequency range, typically from 0.031 to 0.5 Hz, in a 30-minute period. The DWSD drifters are undrogued. Data spans from 2015-present. This file is for Year: 2026; Month: 04. The data was funded by NOAA under the Global Drifter Program and collected and provided by the Lagrangian Drifter Laboratory at Scripps Institution of Oceanography. No quality control has been applied except to indicate missing data values. Data that was reported not on the 3-hourly timestamp have had their timestamp adjusted to 3-hrly if within an hour of the reported time.
attribute NC_GLOBAL testOutOfDate String now-17days
attribute NC_GLOBAL time_coverage_end String 2026-04-14T15:00:00Z
attribute NC_GLOBAL time_coverage_start String 2021-01-27T03:00:00Z
attribute NC_GLOBAL title String Global Drifter Program 3-Hourly, Real-Time, Time Series of Mean Wave Period, 2015-present
attribute NC_GLOBAL Westernmost_Easting double -179.9974
variable wmo_ID long
attribute wmo_ID _FillValue long 9223372036854775807
attribute wmo_ID actual_range long 1401802, 7810916
attribute wmo_ID ioos_category String Identifier
attribute wmo_ID long_name String ID given by World Meteorological Organization
attribute wmo_ID standard_name String wmo_id
variable time double
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.6117164E9, 1.7761788E9
attribute time axis String T
attribute time ioos_category String Time
attribute time long_name String Time
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 float
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range float -23.30343, 72.97878
attribute latitude axis String Y
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude ioos_category String Location
attribute latitude long_name String degrees north
attribute latitude missing_value float -999.0
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude float
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range float -179.9974, 179.9986
attribute longitude axis String X
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude ioos_category String Location
attribute longitude long_name String degrees east
attribute longitude missing_value float -999.0
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable average_period double
attribute average_period _FillValue double -999.0
attribute average_period actual_range double 3.0, 20.25
attribute average_period colorBarMaximum double 20.0
attribute average_period colorBarMinimum double 0.0
attribute average_period ioos_category String Surface Waves
attribute average_period long_name String Sea Surface Wave Mean Period
attribute average_period missing_value double -999.0
attribute average_period short_name String Ta
attribute average_period standard_name String sea_surface_wave_mean_period
attribute average_period units String s

 
ERDDAP, Version 2.25_1
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