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Dataset Title:  NOAA-Navy Sanctuary Soundscape Monitoring Project, Red Grouper Sound
Production, Florida Keys, SanctSound_FK01_01_redgrouper_1min
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Institution:  NOAA   (Dataset ID: noaaSanctSound_FK01_01_redgrouper_1min)
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Data Access Form | Files
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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.5451596e+9, 1.5557118e+9;
    String axis "T";
    String bounds "time_bounds";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00.000Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  redgrouper_detection_count {
    String comment "Sum of red grouper sounds per 1 minute";
    String ioos_category "Statistics";
    String long_name "red grouper detection count";
    String standard_name "redgrouper_detection_count";
    String units "count";
  time_stamp {
    String axis "T";
    String ioos_category "Time";
    String long_name "Timestamp in ISO 8601 date format";
    String standard_name "time";
    String units "ms";
    String abstract "This record represents red grouper sound production detected from raw passive acoustic data. For each one-minute segment of data, calibrated spectrograms were generated and manually viewed for red grouper calls. Sounds with low signal strength were verified aurally. The number of red grouper sounds detected were summed, yielding a count of red grouper sounds per minute at ten-minute increments. These data were recorded at SanctSound Site FK01_01 between December 18, 2018 and April 19, 2019.";
    String acknowledgement "This project received funding from the U.S. Navy.";
    String cdm_data_type "TimeSeries";
    String citation "Cite as: NOAA Office of National Marine Sanctuaries and U.S Navy. 2021. Red Grouper Sound Production Recorded at SanctSound Site FK01_01, SanctSound Data Products. NOAA National Centers for Environmental Information. Accessed [date]. DOI:";
    String comment 
"Data quality: The fixed hydrophone mooring was turned over on December 20th, 2018 and was not returned upright until March 26th, 2019; during this time the hydrophone was in contact with the seafloor. Reductions in sound levels (received levels) in frequencies above 1 kHz were observed from 2018-12-20 20:00:00 until 2019-03-26 14:45:00. Levels may differ from what would be expected if the hydrophone was not moved or impacted by these two events.
    String contributor_name "Simone Baumann-Pickering, Scripps Institution of Oceanography; Leila Hatch, NOAA Stellwagen Bank National Marine Sanctuary; John Joseph, U.S. Naval Postgraduate School; Anke Kuegler, Hawai'i Institute of Marine Biology, University of Hawai'i at Manoa; Marc Lammers, NOAA Hawaiian Islands Humpback Whale National Marine Sanctuary; Tetyana Margolina, U.S. Naval Postgraduate School; Karlina Merkens, NOAA Pacific Islands Fisheries Science Center; Lindsey Peavey Reeves, NOAA Channel Islands National Marine Sanctuary; Timothy Rowell, NOAA Northeast Fisheries Science Center; Jenni Stanley, Woods Hole Oceanographic Institution; Alison Stimpert, Moss Landing Marine Laboratories; Sofie Van Parijs, NOAA Northeast Fisheries Science Center; Eden Zang,NOAA Hawaiian Islands Humpback Whale National Marine Sanctuary";
    String contributor_role "Principal Investigator";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "";
    String creator_name "NOAA NCEI";
    String creator_url "";
    String date_created "2022-03-21";
    String date_issued "2022-03-21";
    String featureType "TimeSeries";
    String geospatial_bounds "POINT (24.43313 -81.93068)";
    String history 
"All continuous data were subsampled to examine one minute of data every ten minutes (10% duty cyle). For each one-minute segment of data, calibrated spectrograms were generated in Matlab (FFT length = 16,384 points, Kaiser-Bessel window with beta = 7.85, FFT overlap of 75%) and viewed by an analyst. Sounds with low signal strength were verified aurally. The number of red grouper sounds detectable after manual examination of each one-minute spectrogram were summed, yielding a count of red grouper sounds per minute at ten-minute increments. Data were processed with Matlab 2017a
2022-08-14T01:12:15Z (local files)
    String id "";
    String infoUrl "";
    String institution "NOAA";
    String instrument "SoundTrap ST500";
    String keywords "acoustic attenuation/transmission, acoustics, ambient noise, aquatic ecosystems, cetacean, environmental, fish, frequency, intensity, marine environment monitoring, marine habitat, national centers for\\n                environmental information, Navy, NOAA, ocean acoustics, oceans, office of national marine sanctuaries, passive acoustic recorder, pressure, sound_intensity_level_in_water, soundscapes";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "The data may be used and redistributed for free but are not intended for legal use, since it may contain inaccuracies. Neither the data creator, 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 naming_authority "NOAA-Navy";
    String project "NOAA-Navy Sanctuary Soundscape Monitoring Project";
    String publisher_email "";
    String publisher_name "NOAA NMFS SWFSC ERD";
    String publisher_type "institution";
    String publisher_url "";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "NOAA and the U.S. Navy are working to better understand underwater sound within the U.S. National Marine Sanctuary System. From 2018 to 2021, these agencies will work with numerous scientific partners to study sound within seven national marine sanctuaries and one marine national monument, which includes waters off Hawai'i and the east and west coasts. Standardized measurements will assess sounds produced by marine animals, physical processes (e.g., wind and waves), and human activities. Collectively, this information will help NOAA and the Navy measure sound levels and baseline acoustic conditions in sanctuaries. This work is a continuation of ongoing Navy and NOAA research, including efforts by NOAA's Office of National Marine Sanctuaries This dataset represents the derived products from the raw acoustic data that are archived at NOAA National Centers for Environmental Information.";
    String time_coverage_end "2019-04-19T22:10:00.000Z";
    String time_coverage_start "2018-12-18T19:00:00.000Z";
    String title "NOAA-Navy Sanctuary Soundscape Monitoring Project, Red Grouper Sound Production, Florida Keys, SanctSound_FK01_01_redgrouper_1min";


Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request a data subset, graph, or map from a gridded dataset (for example, sea surface temperature data from a satellite), via a specially formed URL. griddap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its projection constraints (external link).

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.

griddap request URLs must be in the form{?query}
For example,[(2002-06-01T09:00:00Z)][(-89.99):1000:(89.99)][(-179.99):1000:(180.0)]
Thus, the query is often a data variable name (e.g., analysed_sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][latitude][longitude]).

For details, see the griddap Documentation.

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