LDL_Wave_Sensor eng UTF8 dataset service Lance Braasch Scripps Institution of Oceanography +1 858 534 4770 9500 Gilman Dr La Jolla CA 92093 USA lance@ucsd.edu pointOfContact 2026-07-11 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 3 column row temporal Lagrangian Drifter Laboratory near real-time, Global Time Series of Wave Sensor Data, 2015-Present 2026-07-11 creation erddap.ldl.ucsd.edu LDL_Wave_Sensor LDL https://ldl.ucsd.edu/ldl/gdp-drifter-data information web browser Background Information Background information from the source information originator Global time series of near real-time significant wave height (Hs), peak period, average period and dominant wave direction from Directional Wave Spectra Drifter (DWSD), where data is observed over a 30-minute period. The DWSD drifters are undrogued. Data spans from 2015-present. Quality control flags for certain variables are also provided. 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. Centurioni, Luca R., Schönau, Martha C. and Braasch, Lancelot (2026): Lagrangian Drifter Laboratory near real-time, Global Time Series of Wave Sensor Data, 2015-Present. Lagrangian Drifter Laboratory, Scripps Institution of Oceanography. Dataset. https://doi.org/10.57969/S91S3T LDL https://ldl.ucsd.edu/ldl/gdp-drifter-data information web browser Background Information Background information from the source information pointOfContact 0.006f 0.006f-4 2015-present above aggregate air average bands california certainty change control cumulative data degrees deigo density deviations direction domwavedir domwaveperiod drifter earth east filter first flag flags frequency geostationary global gps gradient gts hdop hour hs- humidity identifier imei institution iridium laboratory lagrangian lagrangian drifter laboratory ldl leading less level low low-power m2/hz maximum mean median meteorological meteorology meteosat mode more near near real time north not nrt observation ocean oceanography oceans one only percent period platform point positioning power present pressure quality real real time real-time realtime recorded reporting retry rssi san satellite science scripps sea seawater second segment sensor series significant sigwaveht sio spectra spectral spiking sst standard statistics status sum surface surface waves swell swells swh system telecommunications temperature than third three three-point time series timestamp ucsd university value variance water wave wave speed/direction waves theme Ocean Waves > Wave Period Ocean Waves > Swells Earth Science > Oceans > Ocean Waves > Wave Spectra Earth Science > Oceans > Ocean Waves > Wave Period Earth Science > Oceans > Ocean Waves > Significant Wave Height Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature theme GCMD Science Keywords UCSD SIO project platform_id latitude longitude time sea_surface_wave_significant_height sea_surface_temperature air_pressure_at_mean_sea_level sea_surface_wave_mean_period sea_surface_wave_period_at_variance_spectral_density_maximum sea_surface_wave_direction_at_variance_spectral_density_maximum aggregate_quality_flag quality_flag quality_flag quality_flag quality_flag quality_flag quality_flag quality_flag quality_flag quality_flag quality_flag quality_flag quality_flag theme CF Standard Name Table v70 Copyright Notice This data is Copyright © 2024 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. UCSD SIO largerWorkCitation project Unidata Common Data Model Point largerWorkCitation project eng geoscientificInformation 1 -179.9965 179.9866 -59.044 80.8576 seconds 2015-10-12T03:26:00Z 2026-04-09T03:00:00Z Lagrangian Drifter Laboratory near real-time, Global Time Series of Wave Sensor Data, 2015-Present 2026-07-11 creation LDL https://ldl.ucsd.edu/ldl/gdp-drifter-data information web browser Background Information Background information from the source information originator Global time series of near real-time significant wave height (Hs), peak period, average period and dominant wave direction from Directional Wave Spectra Drifter (DWSD), where data is observed over a 30-minute period. The DWSD drifters are undrogued. Data spans from 2015-present. Quality control flags for certain variables are also provided. 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. ERDDAP tabledap 1 -179.9965 179.9866 -59.044 80.8576 seconds 2015-10-12T03:26:00Z 2026-04-09T03:00:00Z tight ERDDAPtabledapDatasetQueryAndAccess https://erddap.ldl.ucsd.edu/erddap/tabledap/LDL_Wave_Sensor ERDDAP:tabledap ERDDAP-tabledap ERDDAP's tabledap service (a flavor of OPeNDAP) for tabular (sequence) data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for different purposes. download Lagrangian Drifter Laboratory near real-time, Global Time Series of Wave Sensor Data, 2015-Present 2026-07-11 creation LDL https://ldl.ucsd.edu/ldl/gdp-drifter-data information web browser Background Information Background information from the source information originator Global time series of near real-time significant wave height (Hs), peak period, average period and dominant wave direction from Directional Wave Spectra Drifter (DWSD), where data is observed over a 30-minute period. The DWSD drifters are undrogued. Data spans from 2015-present. Quality control flags for certain variables are also provided. 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. OPeNDAP 1 -179.9965 179.9866 -59.044 80.8576 seconds 2015-10-12T03:26:00Z 2026-04-09T03:00:00Z tight OPeNDAPDatasetQueryAndAccess https://erddap.ldl.ucsd.edu/erddap/tabledap/LDL_Wave_Sensor OPeNDAP:OPeNDAP OPeNDAP An OPeNDAP service for tabular (sequence) data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes. download Lagrangian Drifter Laboratory near real-time, Global Time Series of Wave Sensor Data, 2015-Present 2026-07-11 creation LDL https://ldl.ucsd.edu/ldl/gdp-drifter-data information web browser Background Information Background information from the source information originator Global time series of near real-time significant wave height (Hs), peak period, average period and dominant wave direction from Directional Wave Spectra Drifter (DWSD), where data is observed over a 30-minute period. The DWSD drifters are undrogued. Data spans from 2015-present. Quality control flags for certain variables are also provided. 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. ERDDAP Subset 1 -179.9965 179.9866 -59.044 80.8576 seconds 2015-10-12T03:26:00Z 2026-04-09T03:00:00Z tight ERDDAP_Subset https://erddap.ldl.ucsd.edu/erddap/tabledap/LDL_Wave_Sensor.subset search Subset Web page to facilitate selecting subsets of the dataset download physicalMeasurement platform_ID long Platform Id time double Time significant_wave_height float Significant Wave Height sea_surface_temperature float Sea Surface Temperature sea_level_pressure float Sea Level Pressure average_period float Sea Surface Wave Mean Period peak_period float Sea Surface Wave Period At Variance Spectral Density Maximum dominant_direction float Sea Surface Wave Direction At Variance Spectral Density Maximum aggregate_wave_quality_flag float cumulative sum of quality flags for wave observation wave_qcflag1 float quality flag for significant wave height (Hs) > 4 standard deviations from mean(Hs) wave_qcflag2 float quality flag for average period (Ta) > 4 standard deviations from mean(Ta) wave_qcflag3 float quality flag for spiking significant wave height (Hs-(three-point median filter of Hs) > 4 standard deviations wave_qcflag4 float quality flag for first value of a0 > 4 standard deviations from mean of first value a0 wave_qcflag5 float quality flag for second value of a0 > 4 standard deviations from mean of second value a0 wave_qcflag6 float quality flag for third value of a0 > 4 standard deviations from mean of third value a0 wave_qcflag7 float quality flag for gradient a0(1) to a0(2) > 4 standard deviations from mean(gradient a0(1) to a0(2)) wave_qcflag8 float quality flag for gradient a0(2) to a0(3) > 4 standard deviations from mean(gradient a0(2) to a0(3)) wave_qcflag9 float quality flag for gradient a0(3) to a0(4) > 4 standard deviations from mean(gradient a0(3) to a0(4)) wave_qcflag10 float quality flag for less than 95% of data reporting wave_qcflag11 float quality flag for spectral wave density: frequency bands above 0.08 Hz do not change more 0.006f-4 m2/Hz in one hour wave_qcflag12 float quality flag for low-power mode: only one segment recorded leading to low spectra certainty Lance Braasch Scripps Institution of Oceanography +1 858 534 4770 9500 Gilman Dr La Jolla CA 92093 USA lance@ucsd.edu distributor OPeNDAP DAP/2.0 https://erddap.ldl.ucsd.edu/erddap/tabledap/LDL_Wave_Sensor.html order Data Subset Form ERDDAP's version of the OPeNDAP .html web page for this dataset. Specify a subset of the dataset and download the data via OPeNDAP or in many different file types. download https://erddap.ldl.ucsd.edu/erddap/tabledap/LDL_Wave_Sensor.graph order Make-A-Graph Form ERDDAP's Make-A-Graph .html web page for this dataset. Create an image with a map or graph of a subset of the data. mapDigital This record was created from dataset metadata by ERDDAP Version 2.25_1