Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL ast_qual_min double 108.0
attribute NC_GLOBAL ast_qual_sf double 0.93
attribute NC_GLOBAL atmospheric_pressure_correction_file String 11261sig-atmpres.cdf
attribute NC_GLOBAL atmospheric_pressure_correction_offset_applied float -9.483928
attribute NC_GLOBAL average_duration int 240
attribute NC_GLOBAL average_interval int 360
attribute NC_GLOBAL basefile String mat/S102410A006_11261sig
attribute NC_GLOBAL beam_angle int 25
attribute NC_GLOBAL bin_size double 1.0
attribute NC_GLOBAL cdm_data_type String TimeSeries
attribute NC_GLOBAL cdm_timeseries_variables String station_id
attribute NC_GLOBAL clip_f String true
attribute NC_GLOBAL ClockError int 0
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL COORD_SYSTEM String GEOGRAPHIC
attribute NC_GLOBAL creator_url String https://www.usgs.gov (external link)
attribute NC_GLOBAL cutoff_ampl int 0
attribute NC_GLOBAL DATA_CMNT String No magnetic variation recorded, used data from IGRF model via ngdc.noaa.gov.
attribute NC_GLOBAL DATA_ORIGIN String USGS WHCMSC Coastal and Estuarine Dynamics Group
attribute NC_GLOBAL DATA_SUBTYPE String MOORED
attribute NC_GLOBAL data_type String Burst
attribute NC_GLOBAL DELTA_T int 3600
attribute NC_GLOBAL Deployment_date String 10-Mar-2021 16:00
attribute NC_GLOBAL DEPTH_CONST double 0.0
attribute NC_GLOBAL DESCRIPTION String Cape Cod Bay, Sandy Neck Beach, Barnstable, MA
attribute NC_GLOBAL diwasp String optimized
attribute NC_GLOBAL diwasp_ibin int 3
attribute NC_GLOBAL diwasp_iter int 100
attribute NC_GLOBAL diwasp_method String IMLM
attribute NC_GLOBAL diwasp_names String diwasp
attribute NC_GLOBAL diwasp_pow2 String true
attribute NC_GLOBAL diwasp_smooth String ON
attribute NC_GLOBAL DRIFTER double 0.0
attribute NC_GLOBAL Easternmost_Easting double -70.330452
attribute NC_GLOBAL EXPERIMENT String CCB21
attribute NC_GLOBAL experiment_name String 10.5066-P19NUBNW
attribute NC_GLOBAL featureType String TimeSeries
attribute NC_GLOBAL Field_Activity_Number String 2021-018-FA, 2021-020-FA
attribute NC_GLOBAL filename String 11261sig
attribute NC_GLOBAL frequency double 1000.0
attribute NC_GLOBAL geopotential_datum_name String NAVD88
attribute NC_GLOBAL geopotential_datum_note String Elevation at seabed using VDatum with LMSL and GEOID18
attribute NC_GLOBAL geospatial_lat_max double 41.742658
attribute NC_GLOBAL geospatial_lat_min double 41.742658
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -70.330452
attribute NC_GLOBAL geospatial_lon_min double -70.330452
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL head_rotation String horizontal
attribute NC_GLOBAL height_above_geopotential_datum double -9.01
attribute NC_GLOBAL history String 2025-09-17T16:21:14.706172+00:00: Processed using mat2cdf.py with stglib 1.6.1+51.gd44a195.dirty, xarray 2024.2.0, NumPy 1.26.4, netCDF4 1.6.5, Python 3.11.8.\n2025-09-17T16:22:16.155998+00:00: Atmospherically corrected using time-series from 11261sig-atmpres.cdf and offset of -9.483927726745605\n2025-09-17T16:22:16.257850+00:00: Data clipped using Deployment_date of 10-Mar-2021 16:00 and Recovery_date of 07-Apr-2021 14:07.\n2025-09-17T16:22:16.298974+00:00: Rotating heading and horizontal velocities by -14.47 degrees.\n2025-09-17T16:22:16.431554+00:00: Trimmed velocity data using atmospherically corrected pressure (water level) and sidelobes.\n2025-09-17T16:22:19.340344+00:00: brangeAST trimmed where ast_quality < 108.0\n2025-09-17T16:22:19.343335+00:00: Create water_level variable relative to NAVD88 as brangeAST + zsen\n2025-09-17T16:22:19.344337+00:00: Processed to CF-1.10 using runots.py.\n2025-09-17T16:22:19.362339+00:00: make time encoding to dtype double because tstep <xarray.DataArray 'time' ()> Size: 8B\narray(249998000, dtype='timedelta64[ns]') seconds is < 1 minute\n2025-09-17T16:23:49.787726+00:00: Wave statistics computed using scipy.signal.welch(), assigning cutoff following Jones & Monismith (2007), and applying f^-4 tail past cutoff.\n2025-09-17T16:23:49.875748+00:00: Create water_depth variable by converting P_1ac to sensor depth using S_41 and T_28 from file 11263mc-a.nc + pressure_sensor_height\n2025-09-17T16:23:49.878766+00:00: Create water_level variable relative to NAVD88 as brangeAST + zsen\n
attribute NC_GLOBAL horizontal_datum_name String NAD83(2011)
attribute NC_GLOBAL infoUrl String https://cmgds.marine.usgs.gov/ocean-time-series/
attribute NC_GLOBAL initial_instrument_height double 2.12
attribute NC_GLOBAL initial_instrument_height_note String From seabed
attribute NC_GLOBAL institution String Coastal and Marine Hazards and Resources Program, U.S. Geological Survey
attribute NC_GLOBAL institution_url String https://woodshole.er.usgs.gov (external link)
attribute NC_GLOBAL instrument_type String Signature1000
attribute NC_GLOBAL latitude double 41.742658
attribute NC_GLOBAL license String The data may be used and redistributed for free but is not intended\nfor legal use, since it may contain inaccuracies. Neither the data\nContributor, ERD, NOAA, nor the United States Government, nor any\nof their employees or contractors, makes any warranty, express or\nimplied, including warranties of merchantability and fitness for a\nparticular purpose, or assumes any legal liability for the accuracy,\ncompleteness, or usefulness, of this information.
attribute NC_GLOBAL longitude double -70.330452
attribute NC_GLOBAL magnetic_variation double -14.47
attribute NC_GLOBAL MOORING String 1126
attribute NC_GLOBAL NCProperties String version=2,netcdf=4.9.2,hdf5=1.14.3
attribute NC_GLOBAL nominal_sensor_depth double 6.739999999999999
attribute NC_GLOBAL nominal_sensor_depth_note String WATER_DEPTH - initial_instrument_height
attribute NC_GLOBAL Northernmost_Northing double 41.742658
attribute NC_GLOBAL orientation String UP
attribute NC_GLOBAL P_1ac_note String Corrected for variations in atmospheric pressure using MesoWest Station FW7612 Dennis.
attribute NC_GLOBAL platform_type String Quadpod
attribute NC_GLOBAL POS_CONST double 0.0
attribute NC_GLOBAL pressure_sensor_height double 2.12
attribute NC_GLOBAL PROJECT String USGS Coastal and Marine Hazards and Resources Program
attribute NC_GLOBAL publisher_url String https://www.usgs.gov (external link)
attribute NC_GLOBAL puv String false
attribute NC_GLOBAL Recovery_date String 07-Apr-2021 14:07
attribute NC_GLOBAL sample_interval double 0.25
attribute NC_GLOBAL sample_mode String CONTINUOUS
attribute NC_GLOBAL sample_rate int 4
attribute NC_GLOBAL SciPi String John Warner
attribute NC_GLOBAL sea_floor_depth_below_mean_sea_level double 8.86
attribute NC_GLOBAL serial_number int 102410
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 41.742658
attribute NC_GLOBAL start_time String 2021-03-10T16:00:00.125997000
attribute NC_GLOBAL stop_time String 2021-04-07T14:07:59.875996000
attribute NC_GLOBAL summary String Unspecified
attribute NC_GLOBAL time_coverage_end String 2021-04-07T13:00:00Z
attribute NC_GLOBAL time_coverage_start String 2021-03-10T16:00:00Z
attribute NC_GLOBAL title String CCB21 - 11261sigs-a
attribute NC_GLOBAL transducer_offset_from_bottom double 2.12
attribute NC_GLOBAL trim_ast String true
attribute NC_GLOBAL trim_avg_vel_bins int 1
attribute NC_GLOBAL trim_method String water level sl
attribute NC_GLOBAL VAR_FILL double NaN
attribute NC_GLOBAL vel_b5_bad_ens String 2021-03-10 15:39\n2021-03-10 18:12
attribute NC_GLOBAL WATER_DEPTH double 8.86
attribute NC_GLOBAL WATER_DEPTH_NOTE String (meters), Mean water level from Signature pressure data, converted to depth using density and gravity
attribute NC_GLOBAL water_level_var String brangeAST
attribute NC_GLOBAL WATER_MASS String Cape Cod Bay
attribute NC_GLOBAL wave_duration int 2048
attribute NC_GLOBAL wave_interval int 3600
attribute NC_GLOBAL wave_samples_per_burst int 8192
attribute NC_GLOBAL wave_start_time String 2021-03-10 16:00:00
attribute NC_GLOBAL wavedat_tolerance String 2 s
attribute NC_GLOBAL Westernmost_Easting double -70.330452
attribute NC_GLOBAL zeroed_pressure String No
variable station_id String
attribute station_id actual_range String 10_5066_P19NUBNW_11261sigs_a_nc\n10_5066_P19NUBNW_11261sigs_a_nc
attribute station_id cf_role String timeseries_id
attribute station_id ioos_category String Identifier
attribute station_id long_name String Station ID
variable time double
attribute time _ChunkSizes uint 1024
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.615392E9, 1.6178004E9
attribute time axis String T
attribute time calendar String proleptic_gregorian
attribute time ioos_category String Time
attribute time long_name String time (UTC)
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 z double
attribute z actual_range double -6.89, -6.89
attribute z axis String Z
attribute z geopotential_datum_name String NAVD88
attribute z ioos_category String Other
attribute z long_name String height relative to NAVD88
attribute z positive String up
attribute z standard_name String height
attribute z units String m
variable depth_m double
attribute depth_m actual_range double 6.739999999999999, 6.739999999999999
attribute depth_m ioos_category String Other
attribute depth_m long_name String depth below mean sea level
attribute depth_m positive String down
attribute depth_m standard_name String depth
attribute depth_m units String m
variable latitude double
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range double 41.742658, 41.742658
attribute latitude axis String Y
attribute latitude epic_code int 500
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude double
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range double -70.330452, -70.330452
attribute longitude axis String X
attribute longitude epic_code int 502
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable wp_peak double
attribute wp_peak _ChunkSizes uint 512
attribute wp_peak actual_range double 2.782608695652174, 16.0
attribute wp_peak epic_code int 4063
attribute wp_peak FillValue String nan
attribute wp_peak ioos_category String Other
attribute wp_peak long_name String Dominant (peak) wave period
attribute wp_peak maximum double 16.0
attribute wp_peak minimum double 2.782608695652174
attribute wp_peak standard_name String sea_surface_wave_period_at_variance_spectral_density_maximum
attribute wp_peak units String s
variable wh_4061 double
attribute wh_4061 _ChunkSizes uint 335
attribute wh_4061 actual_range double 0.023231722617291947, 3.1092214326104544
attribute wh_4061 epic_code int 4061
attribute wh_4061 FillValue String nan
attribute wh_4061 ioos_category String Other
attribute wh_4061 long_name String Significant wave height
attribute wh_4061 maximum double 3.1092214326104544
attribute wh_4061 minimum double 0.023231722617291947
attribute wh_4061 standard_name String sea_surface_wave_significant_height
attribute wh_4061 units String m
variable wp_4060 double
attribute wp_4060 _ChunkSizes uint 335
attribute wp_4060 actual_range double 1.9061811324762536, 6.572031321657955
attribute wp_4060 epic_code int 4060
attribute wp_4060 FillValue String nan
attribute wp_4060 ioos_category String Other
attribute wp_4060 long_name String Average wave period
attribute wp_4060 maximum double 6.572031321657955
attribute wp_4060 minimum double 1.9061811324762536
attribute wp_4060 standard_name String sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment
attribute wp_4060 units String s
variable frequency double
attribute frequency actual_range double 0.015625, 2.0
attribute frequency ioos_category String Other
attribute frequency long_name String Frequency
attribute frequency standard_name String sea_surface_wave_frequency
attribute frequency units String Hz
variable pspec double
attribute pspec _ChunkSizes uint 1, 255
attribute pspec actual_range double 7.338097488395315E-9, 12.10350657527063
attribute pspec FillValue String nan
attribute pspec ioos_category String Other
attribute pspec long_name String Pressure-derived non-directional wave energy spectrum
attribute pspec maximum double 12.10350657527063
attribute pspec minimum double 7.338097488395315E-9
attribute pspec note String Use caution: all spectra are provisional
attribute pspec standard_name String sea_surface_wave_variance_spectral_density
attribute pspec units String m^2/Hz
variable water_depth double
attribute water_depth _ChunkSizes uint 335
attribute water_depth actual_range double 6.7557313747257774, 10.955753993494003
attribute water_depth epic_code int 3
attribute water_depth FillValue String nan
attribute water_depth ioos_category String Other
attribute water_depth long_name String Total water depth
attribute water_depth maximum double 10.955753993494003
attribute water_depth minimum double 6.7557313747257774
attribute water_depth note String Water depth calculated by converting P_1ac to sensor depth using S_41 and T_28 from file 11263mc-a.nc + pressure_sensor_height
attribute water_depth standard_name String sea_floor_depth_below_sea_surface
attribute water_depth units String m
variable water_level double
attribute water_level _ChunkSizes uint 335
attribute water_level actual_range double -2.272221698760986, 1.9173778152465824
attribute water_level FillValue String nan
attribute water_level geopotential_datum_name String NAVD88
attribute water_level ioos_category String Other
attribute water_level long_name String Water level NAVD88
attribute water_level maximum double 1.9173778152465824
attribute water_level minimum double -2.272221698760986
attribute water_level note String Water level calculated as brangeAST + zsen
attribute water_level standard_name String sea_surface_height_above_geopotential_datum
attribute water_level units String m