Easier access to scientific acoustic and optical data
Brought to you by UW FAR IOOS NCEI AOOS UAF CFOS
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Fisheries Acoustics Research: Acoustic and Optical Sensor Data
Easier access to scientific acoustic and optical data |
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Brought to you by UW FAR IOOS NCEI AOOS UAF CFOS |
| Dataset Title: | Data from a local source.
|
| Institution: | ??? (Dataset ID: unit_507_20240512T0000_ek80) |
| Information: | Summary
| License
| Metadata
| Background
| Subset
| Files
| Make a graph
|
Attributes {
s {
channel {
String ioos_category "Identifier";
String long_name "Vendor channel ID";
}
ping_time {
Float64 actual_range 1.715558779e+9, 1.715559865e+9;
String axis "T";
String calendar "proleptic_gregorian";
String ioos_category "Time";
String long_name "Timestamp of each ping";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
range_sample {
Float64 _FillValue 9223372036854775807;
Float64 actual_range 0, 1349;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
String ioos_category "Statistics";
String long_name "Along-range sample number, base 0";
}
Sv {
Float64 _FillValue NaN;
Float64 actual_range -140.5922731519628, 27.633694360861245;
Float64 colorBarMaximum 50.0;
Float64 colorBarMinimum -150.0;
String encode_mode "complex";
String ioos_category "Unknown";
String long_name "Volume backscattering strength (Sv re 1 m-1)";
Float64 missing_value NaN;
String units "dB";
String waveform_mode "CW";
}
echo_range {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 59.99573154567249;
String ioos_category "Unknown";
String long_name "Range distance";
String units "m";
}
frequency_nominal {
Float64 _FillValue NaN;
Float64 actual_range 200000.0, 200000.0;
Float64 colorBarMinimum 0.0;
String ioos_category "Unknown";
String long_name "Transducer frequency";
String standard_name "sound_frequency";
String units "Hz";
Float64 valid_min 0.0;
}
sound_speed {
Float64 _FillValue NaN;
Float64 actual_range 1482.41492, 1482.41492;
String ioos_category "Currents";
String long_name "Sound Speed";
}
sound_absorption {
Float64 _FillValue NaN;
Float64 actual_range 0.05047433431463723, 0.05047433431463723;
String ioos_category "Unknown";
String long_name "Sound Absorption";
}
temperature {
Float64 _FillValue NaN;
Float64 actual_range 8.0, 8.0;
String ioos_category "Temperature";
String long_name "Temperature";
}
salinity {
Float64 _FillValue NaN;
Float64 actual_range 35.0, 35.0;
Float64 colorBarMaximum 37.0;
Float64 colorBarMinimum 32.0;
String ioos_category "Salinity";
String long_name "Sea Water Practical Salinity";
String standard_name "sea_water_practical_salinity";
String units "PSU";
}
pressure {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 0.0;
String ioos_category "Pressure";
String long_name "Pressure";
}
pH {
Float64 _FillValue NaN;
Float64 actual_range 8.0, 8.0;
Float64 colorBarMaximum 9.0;
Float64 colorBarMinimum 7.0;
String ioos_category "Salinity";
String long_name "Sea Water Ph Reported On Total Scale";
String standard_name "sea_water_ph_reported_on_total_scale";
}
formula_absorption {
String ioos_category "Unknown";
String long_name "Formula Absorption";
}
sa_correction {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 0.0;
String ioos_category "Unknown";
String long_name "Sa Correction";
}
gain_correction {
Float64 _FillValue NaN;
Float64 actual_range 25.0, 25.0;
String ioos_category "Unknown";
String long_name "Gain Correction";
}
equivalent_beam_angle {
Float64 _FillValue NaN;
Float64 actual_range -21.0, -21.0;
Float64 colorBarMaximum 15.0;
Float64 colorBarMinimum 0.0;
String ioos_category "Unknown";
String long_name "Equivalent beam angle";
String units "sr";
Float64 valid_range 0.0, 12.566370614359172;
}
angle_offset_alongship {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 0.0;
String comment "Introduced in echopype for Simrad echosounders. The alongship angle corresponds to the minor angle in SONAR-netCDF4 vers 2.";
String ioos_category "Unknown";
String long_name "electrical alongship angle offset of the transducer";
}
angle_offset_athwartship {
Float64 _FillValue NaN;
Float64 actual_range 0.0, 0.0;
String comment "Introduced in echopype for Simrad echosounders. The athwartship angle corresponds to the major angle in SONAR-netCDF4 vers 2.";
String ioos_category "Unknown";
String long_name "electrical athwartship angle offset of the transducer";
}
angle_sensitivity_alongship {
Float64 _FillValue NaN;
Float64 actual_range 26.0, 26.0;
String comment "Introduced in echopype for Simrad echosounders. The alongship angle corresponds to the minor angle in SONAR-netCDF4 vers 2.";
String ioos_category "Unknown";
String long_name "alongship angle sensitivity of the transducer";
}
angle_sensitivity_athwartship {
Float64 _FillValue NaN;
Float64 actual_range 26.0, 26.0;
String comment "Introduced in echopype for Simrad echosounders. The athwartship angle corresponds to the major angle in SONAR-netCDF4 vers 2.";
String ioos_category "Unknown";
String long_name "athwartship angle sensitivity of the transducer";
}
beamwidth_alongship {
Float64 _FillValue NaN;
Float64 actual_range 7.0, 7.0;
Float64 colorBarMaximum 400.0;
Float64 colorBarMinimum 0.0;
String comment "Introduced in echopype for Simrad echosounders to avoid potential confusion with convention definitions. The alongship angle corresponds to the minor angle in SONAR-netCDF4 vers 2. The convention defines one-way transmit or receive beamwidth (beamwidth_receive_minor and beamwidth_transmit_minor), but Simrad echosounders record two-way beamwidth in the data.";
String ioos_category "Unknown";
String long_name "Half power two-way beam width along alongship axis of beam";
String units "arc_degree";
Float64 valid_range 0.0, 360.0;
}
beamwidth_athwartship {
Float64 _FillValue NaN;
Float64 actual_range 7.0, 7.0;
Float64 colorBarMaximum 400.0;
Float64 colorBarMinimum 0.0;
String comment "Introduced in echopype for Simrad echosounders to avoid potential confusion with convention definitions. The athwartship angle corresponds to the major angle in SONAR-netCDF4 vers 2. The convention defines one-way transmit or receive beamwidth (beamwidth_receive_major and beamwidth_transmit_major), but Simrad echosounders record two-way beamwidth in the data.";
String ioos_category "Unknown";
String long_name "Half power two-way beam width along athwartship axis of beam";
String units "arc_degree";
Float64 valid_range 0.0, 360.0;
}
impedance_transducer {
Float64 _FillValue 9223372036854775807;
Float64 actual_range 75, 75;
String ioos_category "Unknown";
String long_name "Impedance Transducer";
}
impedance_transceiver {
Float64 _FillValue 9223372036854775807;
Float64 actual_range 10800, 10800;
String ioos_category "Unknown";
String long_name "Transceiver impedance";
String units "ohm";
}
receiver_sampling_frequency {
Float64 _FillValue 9223372036854775807;
Float64 actual_range 1500000, 1500000;
String ioos_category "Unknown";
String long_name "Receiver Sampling Frequency";
}
water_level {
Float64 _FillValue NaN;
String ioos_category "Sea Level";
String long_name "Distance from the platform coordinate system origin to the nominal water level along the z-axis";
Float64 missing_value NaN;
String units "m";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Float64 _FillValue NaN;
Float64 actual_range -58.23766796809186, 147.26069922898685;
String axis "Z";
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
String ioos_category "Location";
String long_name "Depth";
String positive "down";
String standard_name "depth";
String units "m";
}
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.715558779e+9, 1.715559865e+9;
String axis "T";
String calendar "proleptic_gregorian";
String ioos_category "Time";
String long_name "Timestamp of each ping";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
}
NC_GLOBAL {
String cdm_data_type "Other";
String Conventions "COARDS, CF-1.10, ACDD-1.3";
Float64 geospatial_vertical_max 147.26069922898685;
Float64 geospatial_vertical_min -58.23766796809186;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"2024-11-25T08:26:34Z (local files)
2024-11-25T08:26:34Z https://acoustics.fish.washington.edu/erddap/tabledap/unit_507_20240512T0000_ek80.html";
String infoUrl "???";
String institution "???";
String keywords "absorption, acoustic, acoustics, along, along-range, alongship, angle, angle_offset_alongship, angle_offset_athwartship, angle_sensitivity_alongship, angle_sensitivity_athwartship, athwartship, axis, backscattering, base, beam, beamwidth_alongship, beamwidth_athwartship, channel, chemistry, coordinate, correction, currents, data, density, depth, distance, each, earth, Earth Science > Oceans > Ocean Acoustics > Acoustic Frequency, Earth Science > Oceans > Ocean Chemistry > pH, Earth Science > Oceans > Salinity/Density > Salinity, echo_range, electrical, equivalent, equivalent_beam_angle, formula, formula_absorption, frequency, frequency_nominal, gain, gain_correction, half, identifier, impedance, impedance_transceiver, impedance_transducer, level, local, m-1, nominal, number, ocean, oceans, offset, origin, ping, ping_time, platform, power, practical, pressure, range, range_sample, receiver, receiver_sampling_frequency, reported, sa_correction, salinity, sample, sampling, scale, science, sea, sea level, sea_water_ph_reported_on_total_scale, sea_water_practical_salinity, seawater, sensitivity, sound, sound_absorption, sound_frequency, sound_speed, source, speed, statistics, strength, system, temperature, time, timestamp, total, transceiver, transducer, two, two-way, vendor, volume, water, water_level, way, width, z-axis";
String keywords_vocabulary "GCMD Science Keywords";
String license
"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.";
String processing_function "calibrate.compute_Sv";
String processing_software_name "echopype";
String processing_software_version "0.8.5.dev3+g66fda23";
String processing_time "2024-06-07T06:21:44Z";
String sourceUrl "(local files)";
String standard_name_vocabulary "CF Standard Name Table v70";
String subsetVariables "channel, frequency_nominal, sound_speed, sound_absorption, temperature, salinity, pressure, pH, formula_absorption, sa_correction, gain_correction, equivalent_beam_angle, angle_offset_alongship, angle_offset_athwartship, angle_sensitivity_alongship, angle_sensitivity_athwartship, beamwidth_alongship, beamwidth_athwartship, impedance_transducer, impedance_transceiver, receiver_sampling_frequency, water_level";
String summary "Data from a local source.";
String time_coverage_end "2024-05-13T00:24:25Z";
String time_coverage_start "2024-05-13T00:06:19Z";
String title "Data from a local source.";
}
}
Data Access Protocol (DAP) and its
selection constraints.
The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.
Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names,
followed by a collection of
constraints (e.g., variable<value),
each preceded by '&' (which is interpreted as "AND").
For details, see the tabledap Documentation.