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Dataset Title:  CAGES Texas Lengths CPUE IOOS Standard Subscribe RSS
Institution:  GCOOS   (Dataset ID: CAGES_Texas_Trawls_Lengths_IOOS_Standard)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form
 
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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 {
 s {
  modified {
    String description "The most recent date the data originator updated or verified the record, expressed in the standard ISO 8601:2004(E). Can be the record creation date or date of subsequent update or verification. If the data originator does not record or provide this information, IOOS will populate this date with the date the record became available to IOOS.";
    String ioos_category "Time";
    String long_name "Modified";
    String reference "dcterms:modified";
    String section "AdminAndId";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  dataset_ID {
    String description "An abbreviated name for the dataset that contains the occurrence record. This may also be the technical name for the data resource in a database or web service. The datasetID occurs on each row to preserve record identity in case records served by the resource become distributed to other resources or applications.";
    String ioos_category "Biology";
    String reference "dwc:datasetID";
    String section "AdminAndId";
  }
  datasetName {
    String description "This is a long-form name for the dataset, more explanatory than the datasetID. The datasetName will read as a recognizable title that reflects information about the dataset. Suggested information to include in the datasetName can refer to originator, content, purpose, method, geography, or other characteristics of the dataset. This datasetName term in the data record will match the dataset name in metadata.";
    String ioos_category "Biology";
    String reference "dwc:datasetName";
    String section "AdminAndId";
  }
  higherInstitutionCode {
    String description "Institution codes, in the form of abbreviated institution names, separated by semicolons, that define the hierarchy of institutions within which the data originator operates. Includes the originating institution as the lowest level (rightmost) code. Abbreviations for institutions in all levels of the hierarchy will be explained in dataset metadata.";
    String ioos_category "Biology";
    String reference "ioosbiology:higherInstitutionCode";
    String section "AdminAndId";
  }
  institutionCode {
    String description "An abbreviation for the institution that is the originator of this data resource; the institution involved in research, data collection and/or data management that most directly produced this dataset. This institution also appears as the lowest level (rightmost) code in the higherInstitutionCode term.";
    String ioos_category "Biology";
    String reference "dwc:institutionCode";
    String section "AdminAndId";
  }
  ownerInstitutionCode {
    String description "An abbreviation that identifies the institution, within the higherInstitutionCode hierarchy, that is considered the owner or controller of the data.";
    String ioos_category "Biology";
    String reference "ioosbiology:ownerInstitutionCode";
    String section "AdminAndId";
  }
  collectionCode {
    String description "An identifier for a subset(s) of data within the dataset, partitioned by methods or parameters meaningful to the data originators. The system and purpose for defining and partitioning by collectionCode within a dataset will be explained in metadata.";
    String ioos_category "Biology";
    String reference "dwc:collectionCode";
    String section "AdminAndId";
  }
  time {
    String _CoordinateAxisType "Time";
    String axis "T";
    String description "The date and time of observation expressed in local time using the standard ISO 8601:2004(E). Where date and time are imprecise, for example, time not recorded or day not recorded, ISO 8601 practice is to omit the components of the date and time string for those unspecified details. Where date and time imprecision are more complex, for example, \"observed between 10am and noon\" or \"observed during the first half of July\", supplement the use of ISO 8601 in this term with the use of verbatimObservationDateTime, nominalObservationDateTime, nominalObservationDateTimeUncertainty, and observationDateTimeAnnotation.";
    String ioos_category "Time";
    String long_name "Time";
    String reference "dwc:eventDate";
    String section "DateTime";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  nominalObservationDateTime {
    String description "In an IOOS service, this variable may appear simply with the name \"time\" or with the full name \"nominalObservationDateTime\". This term identifies a specific instant chosen to represent the date and time of the observation, in Coordinated Universal Time (UTC). Both date and time are specified in this term in order to facilitate some searches and services that require resolution of events to this level of precision in time. Some observation events occur with uncertainty at the level of minutes, hours, or even days or more. A nominal event date and time is determined, even for observations with date and time uncertainty, for IOOS services to best represent the instant of the event. The companion term, nominalObservationDateTimeUncertainty, defines an interval of uncertainty that quantifies precision to correspond to the precision the original data recorded. Methods for determining nominal time and uncertainty will be documented in metadata, and they can be explained (if concise) in the \"observationDateTimeAnnotation\" term.";
    String ioos_category "Time";
    String long_name "Nominal Observation Date Time";
    String reference "ioosbiology:nominalObservationDateTime";
    String section "DateTime";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  nominalObservationDateTimeUncertainty {
    String description "In an IOOS service, this variable may appear simply with the name \"timeUncertainty\" or with the full name \"nominalObservationDateTimeUncertainty\". This is the uncertainty in seconds before and after the nominalObservationDateTime, as a result of both precision and accuracy factors in determining observation time. This use of uncertainty makes the nominalObservationDateTime the mid-point in the range of uncertainty equal to twice the value of this term.";
    String ioos_category "Biology";
    String reference "ioosbiology:nominalObservationDateTimeUncertainty";
    String section "DateTime";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    String axis "Y";
    String description "The position of the observation north or south of the equator in decimal degrees. Latitudes north of the equator are positive and range to +90 degrees. Positions south of the equator are negative, and range to -90 degrees. The data type for latitude and longitude terms is defined as \"string\" for xsd purposes. These data elements may be converted upon use to platform-specific data types for GIS, web services and other applications. The use of \"xsd:string\" in the term definition is to preserve the exact information provided by the data originator, because exact features, particularly the number of decimal places, must be retained to remain true to the original information.";
    String ioos_category "Location";
    String long_name "Latitude";
    String reference "dwc:decimalLatitude";
    String section "Georeference";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    String axis "X";
    String description "The position of the observation east or west of the prime meridian in decimal degrees. Positions west of the prime meridian are negative, and range to -180. Positions east of the prime meridian are positive, and range to +180. The data type for latitude and longitude terms is defined as \"string\" for xsd purposes. These data elements may be converted upon use to platform-specific data types for GIS, web services and other applications. The use of \"xsd:string\" in the term definition is to preserve the exact information provided by the data originator, because exact features such as the number of decimal places must be retained to remain true to the original information.";
    String ioos_category "Location";
    String long_name "Longitude";
    String reference "dwc:decimalLongitude";
    String section "Georeference";
    String standard_name "longitude";
    String units "degrees_east";
  }
  coordinateUncertaintyInMeters {
    String description "An expression in meters of the overall uncertainty of the georeference provided by the latitude and longitude data. The uncertainty can combine issues of both accuracy and precision, and depends on the method the data originator used to determine coordinates. Methods and considerations that go into determinations of uncertainty will be described in metadata.";
    String ioos_category "Biology";
    String reference "dwc:coordinateUncertaintyInMeters";
    String section "Georeference";
  }
  basisOfRecord {
    String description "Identifies the source of information or observation that generated the biological occurrence record.";
    String ioos_category "Biology";
    String reference "dwc:basisOfRecord";
    String section "RecordOrigination";
  }
  geodeticDatum {
    String description "The ellipsoid, geodetic datum, or spatial reference system used in latitude and longitude. IOOS preference is to provide all coordinates using EPSG:4326, also known as WGS 84. This element will identify the actual datum used, confirming WGS 84 or identifying what other datum applies.";
    String ioos_category "Biology";
    String reference "dwc:geodeticDatum";
    String section "Georeference";
  }
  minimumDepthInMeters {
    Float64 actual_range 0.2, 62.4;
    String description "The minimumDepthInMeters and maximumDepthInMeters express the depth range in which the observation was made. If the data originator provides a single depth measurement, the minimumDepthInMeters and maximumDepthInMeters show that measurement and will be equal. If no depth information is provided, both the min and max terms will be NULL.";
    String ioos_category "Biology";
    String reference "dwc:minimumDepthInMeters";
    String section "Depth";
  }
  maximumDepthInMeters {
    Float64 actual_range 0.2, 62.4;
    String description "The minimumDepthInMeters and maximumDepthInMeters express the depth range in which the observation was made. If the data originator provides a single depth measurement, the minimumDepthInMeters and maximumDepthInMeters show that measurement and will be equal. If no depth information is provided, both the min and max terms will be NULL.";
    String ioos_category "Biology";
    String reference "dwc:maximumDepthInMeters";
    String section "Depth";
  }
  vernacularName {
    String description "A common or vernacular name for the taxon observed. A vernacularName is not required. Use of this term is at the discretion of the data originator. If this term is used, then authorities, references and procedures for making identifications and translating vernacular name to scientific name should be documented in metadata. The recommended practice is that vernacular names be used consistently within a dataset.";
    String ioos_category "Biology";
    String reference "dwc:vernacularName";
    String section "TaxonomicIdentification";
  }
  scientificName {
    String description "The taxonomic identification of the observation as either 1) Genus and species (and subspecies if provided) in Latin binomial nomenclature form, or 2) the lowest-level taxonomic name to which the observation is identified, expressed in Latin form. scientificName is a required term. Authorities, references and procedures for making identifications should be documented in metadata.";
    String ioos_category "Biology";
    String reference "dwc:scientificName";
    String section "TaxonomicIdentification";
  }
  individualCount {
    Int32 actual_range 0, 1;
    String description "The number of individuals represented in the observation record. Valid values include positive integers, zero, and null. Positive integers represent presence. If the observation record and metadata also contain other required information such as details about the sampling activity, individualCount can contribute to the abundance calculations. Null value for individualCount represents a record of presence, with quantity unspecified, and null values do not support abundance calculations. Zero value represents absence. Zero values for absence are only valid if methodology for establishing absence is recorded in metadata.";
    String ioos_category "Biology";
    String reference "dwc:individualCount";
    String section "OccurrenceDetail";
  }
  observedIndividualLengthInCm {
    Float64 actual_range 0.3, 115.2;
    String description "If a single individual is observed and measured, record length in centimeters here.";
    String ioos_category "Biology";
    String reference "ioosbiology:individualLengthInCm";
    String section "OccurrenceDetail";
  }
  sampleID {
    String description "A unique identifier for a unit of material, or other medium of observation, gathered at a discrete point in time, that serves as a sample for a survey of biological occurrence (presence, quantification, absence, or derived value). The definition of a sample and assignment of IDs is controlled by the data originator. If applicable, details about how sample are are defined and IDs assigned will be provided in metadata.";
    String ioos_category "Biology";
    String reference "ioosbiology:sampleID";
    String section "SampleEvent";
  }
  subsampleID {
    String description "If a sample is further divided by the data originator for purposes of organization, handling, or analysis, and if the data originator wants to maintain the identity of the subsample, capture the ID of the subsample here. Explain in metadata if applicable.";
    String ioos_category "Biology";
    String reference "ioosbiology:subsampleID";
    String section "SampleEvent";
  }
  samplingProtocol {
    String description "Information about the intended sampling method as defined by the data originator. Contents in this term (either verbatim or by vocabulary) will be used consistently in a dataset and will be explained in metadata. If there is more than one aspect of sampling protocol worth capturing, information can be concatenated into this term, delimited by semicolon. Contents in this term (either verbatim or by vocabulary) will be used consistently in a dataset. More extensive discussion of sampling protocol, effort and conditions may be provided in metadata as needed.";
    String ioos_category "Biology";
    String reference "dwc:samplingProtocol";
    String section "SampleEvent";
  }
  sampleShape {
    String description "The shape of the sample space in which the observation was made, such as R for rectangular, C for cylindrical.";
    String ioos_category "Biology";
    String reference "ioosbiology:sampleShape";
    String section "SampleEvent";
  }
  sampleWidthInMeters {
    String description "The width in meters of the sample space in which the observation was made.";
    String ioos_category "Biology";
    String reference "ioosbiology:sampleWidthInMeters";
    String section "SampleEvent";
  }
  sampleHeightInMeters {
    String description "The height in meters of the sample space in which the observation was made.";
    String ioos_category "Biology";
    String reference "ioosbiology:sampleHightInMeters";
    String section "SampleEvent";
  }
  samplingEffort {
    String description "Information about the extent, duration or other variable aspects of the sampling activity, as conducted by the data originator, that occurred at the time of the sampling event. In contrast to the samplingProtocol, which describes the intended method of sampling prior to the event, samplingEffort describes actual phenomena as they occur at the time of sampling. More than one type of effort information can be concatenated into this term, delimited by semicolon. Other terms are available in this terminology for some specific details of sampling effort, such as sample dimensions, that are expected to be frequently used in IOOS services. Use the samplingEffort term for additional effort information that is not addressed by other terms. Contents in this term (either verbatim or by vocabulary) will be used consistently in a dataset. More extensive discussion of sampling protocol, effort and conditions may be provided in metadata as needed.";
    String ioos_category "Biology";
    String reference "dwc:samplingEffort";
    String section "SampleEvent";
  }
  samplingConditions {
    String description "Information about the state of the sampling location, determined by external factors such as weather, water conditions, lighting and visibility, etc., at the time of the sampling event. More than one type of information about conditions can be concatenated into this term, delimited by semicolon. Other terms are available in this terminology for some specific details of sampling conditions, such as habitat, bottomType, visibilty and temperature, that are expected to be frequently used in IOOS services. Use the samplingConditions term for additional information about conditions that is not addressed by other terms. Like samplingEffort, this term describes phenomena other than the method intended by the data collector in the samplingProtocol. The difference between samplingEffort and samplingConditions is that samplingConditions describes the state of the environment, and samplingEffort describes the actions of the sampler. More than one type of information about conditions can be concatenated into this term, delimited by semicolon. Contents in this term (either verbatim or by vocabulary) will be used consistently in a dataset and will be explained in metadata. More extensive discussion of sampling protocol, effort and conditions may be provided in metadata as needed.";
    String ioos_category "Biology";
    String reference "ioosbiology:samplingConditions";
    String section "SampleEvent";
  }
  quantificationType {
    String description "This is a one-character string with enumerated values indicating what type of quantification this record represents. \"P\" for presence (and no quantification), \"Q\" for quantified or \"A\" for absence.";
    String ioos_category "Biology";
    String reference "ioosbiology:quantificationType";
    String section "Quantification";
  }
  waterBody {
    String description "The name of the water body in which the observation was made. For marine data, this is the ocean name. If there is a more specific named region, such as a bay or reef, or sector of the ocean (for example, northwest Pacific), add the regional name after the ocean name, separated by a semicolon. Note that the locality term will contain the most specific name, such as a pier or other named feature, so that lowest level of detail need not be included in the waterbody term. The waterbody term is for the ocean and any named intermediate geography such as a region.";
    String ioos_category "Biology";
    String reference "dwc:waterBody";
    String section "NamedGeography";
  }
  locality {
    String description "The locality is the most specific named place to identify the location of the observation. Many marine data rely strictly on geographic coordinates, so the locality term may be null. If a locality is used, it may be a specific location or feature name, such as \"Pier 39\" or \"Atafu Atoll\", or it may include a descriptive phrase, such as \"a tidal pool 1500 meters north of Pier 39\". Note that in marine observations, the latitude and longitude may be more precise than any named place would suggest, because the coordinates often come from navigation of GPS systems. Geographic names can be secondary locality identifiers and they can be less precise than coordinates.";
    String ioos_category "Biology";
    String reference "dwc:locality";
    String section "NamedGeography";
  }
 }
  NC_GLOBAL {
    String abstract "The CAGES program (Comparative Assessment of Gulf Estuarine ecoSystems) is designed to examine the differences between estuarine ecosystems and investigate why some are more productive than others. The program focuses on estuarine areas important to commercial fisheries and includes data on commercial finfish and invertebrate species, as well as other species commonly captured in trawl sampling. The Texas dataset is a subset of the CAGES Relational Database which is a compilation of fishery-independent data contributed by natural resource agencies of the Gulf States (Texas, Louisiana, Mississippi, Alabama, and Florida). It includes data from trawls collected by the Texas Parks and Wildlife Department (TPWD), as well as associated hydrographic data. Trawl data were used to calculate CPUE (catch per unit effort) data for 26 target species at each sampling site, measured in number of organisms per hectare. Data presented here show the mean CPUE at each TPWD station for the years 1982 through 2005. Only stations sampled during these time periods are displayed.";
    String Access_Constraints "none";
    String Address "Galveston Laboratory, 4700 Avenue U";
    String Address_Type "mailing and physical";
    String Attribute_Definition "Institution codes, in the form of names, abbreviation or acronyms, separated by semicolons, that define the hierarchy of institutions within which the data originator operates. Includes the originating institution as the lowest level (rightmost) code. All abbreviations or acronyms for institutions in all levels of the hierarchy will be explained in dataset metadata.";
    String Attribute_Definition_Source "IOOS Schema Definition Document";
    String Attribute_Label "modified";
    String beginning_date "1982";
    String cdm_data_type "Point";
    String City "Galveston";
    String Completeness_Report "None";
    String Contact_Electronic_Mail_Address "ncddcmetadata@noaa.gov";
    String Contact_Facsimile_Telephone "228-688-2968";
    String Contact_Organization "NOAA Fisheries Service, formerly National Marine Fisheries Service, Fishery Ecology Branch";
    String Contact_Person "Dr. Harmon Brown";
    String Contact_Voice_Telephone "409-766-3500";
    String Country "USA";
    String defaultGraphQuery "time>=now-20years";
    String description_of_geographic_extent "Estuarine waters in the State of Texas.";
    String Distribution_Liability "NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA, NESDIS, NODC and NCDDC cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.";
    String east_bounding_coordinate "-93.758333";
    String ending_date "2005";
    String Entity_Type_Definition "This is the schema used for all IOOS datasets. It is based on DarwinCore terms.";
    String Entity_Type_Definition_Source "IOOS";
    String Entity_Type_Label "IOOS Schema";
    String Enumerated_Domain_Value "USDOC";
    String Enumerated_Domain_Value_Definition "United States Department of Commerce";
    String Enumerated_Domain_Value_Definition_Source "IOOS Schema Validation Document";
    String featureType "Point";
    String Geospatial_Data_Presentation_Form "database";
    String geospatial_lat_units "degrees_north";
    String geospatial_lon_units "degrees_east";
    String history 
"Not much yet.
2019-12-12T07:03:52Z (source database)
2019-12-12T07:03:52Z http://gcoos4.tamu.edu:8080/tabledap/CAGES_Texas_Trawls_Lengths_IOOS_Standard.das";
    String Hours_of_Service "Monday - Friday, 8am - 5pm, Central Standard Time";
    String infoUrl "http://www.galvestonlab.sefsc.noaa.gov/stories/2013/ecology/index.html";
    String institution "GCOOS";
    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 Logical_Consistency_Report "None";
    String maintenance_and_update_frequency "none planned";
    String Metadata_Contact "None";
    String Metadata_Conventions "CF-1.6, COARDS, Unidata Dataset Discovery v1.0";
    String Metadata_Date "20121010";
    String Metadata_Reference_Information "None";
    String Metadata_Standard_Name "FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata";
    String Metadata_Standard_Version "FGDC-STD-001.1-1999";
    String north_bounding_coordinate "29.991667";
    String Organism_Data_Entry_and_Validation "Fishery-independent monitoring data were electronically provided by each state independently. The data were imported into tables in the relational database. The data tables were compared to the original electronic files to ensure complete and accurate importation. The originally submitted electronic data files and the relational database created from such files are maintained at the NOAA/NMFS/SEFSC/Galveston Laboratory.";
    String Originator "NOAA Fisheries Service, Fishery Ecology Branch, Southeast Fisheries Science Center, Galveston, TX";
    String Postal_Code "77551-5997";
    String Process_Date "unknown";
    String Process_Description "Species Count and Measurement Description: Organisms greater than 5 mm total length, captured in trawl or stranded on boat deck, were identified to the lowest possible phylogenetic unit (genus and species preferred). Up to 19 individuals of each species to be measured were randomly selected from each trawl. If less than 19 individuals were caught then all were measured, if more than 19, the remainder were counted. For shrimp, 50 randomly selected shrimp of each commercial species (brown, white and pink) were measured. The sex was determined (1 = male and 2 = female) and female maturity stage (0 ? 9) was also determined for 50 white shrimp. Blue crabs were measured and the sex was determined (1 = male, 2 = female and 0 = unknown or sacculinid infested) for 35 randomly selected blue crabs; and the remainder was counted and the maturity stage (0 ? 4, 8 and 9) was determined for measured females. If species are present that could not be identified, they were placed in a labeled plastic bag on ice and transported to field station. Determinations of length were based on the following: Length measurements for fish followed the following procedures: Total length - tip of snout (mouth closed) to tip of longest caudal fin ray (caudal fin compressed). Standard length (used only if total length cannot be measured) - tip of snout (mouth closed) to base of caudal peduncle. Fork length (used only if total length cannot be measured) ? tip of snout (mouth closed) to center of fork on caudal fin.";
    String progress "complete";
    String Publication_Date "2012";
    String purpose "The purpose of CAGES is to compile the fishery independent data from five Gulf States into one searchable database that could be used to more easily compare the fisheries across the US Gulf of Mexico coast. This dataset includes data collected from Texas only. The CAGES database is intended for scientific research only.";
    String Sampling_Gear_Description "Coastal Fisheries trawls are 6.1 m (20 ft) wide otter trawls with 38 mm (1.5 in) stretched nylon multifilament mesh throughout. Trawl doors are 1.2 m (48 in) long and 0.5 m (20 in) wide, and constructed of 13 mm (0.5 in) plywood with angle iron framework and iron runners. Trawls were towed for 10 minutes at 3 mph parallel to fathom curve. The direction of the trawl tows were randomly selected for the first trawl tow and alternate directions were used for subsequent tows. In depths less than 6.1 m 30.5 m of bridle was deployed to a position just aft of stern. In depths greater than 6.1 m (20 ft) a 5:1 cable (length to water-depth ratio) was used (cable length includes bridle length). Trawls were made in water depths ranging from 0.2 ? 62.4 m. Trawls were not conducted in the same grid more than once per month and no trawling was conducted in marked navigational channels.";
    String Source_Citation_Abbreviation "CAGES Relational Database";
    String Source_Contribution "Fisheries catch data, including positional information of sampling locations, the water body where each was located, and catch per unit effort (CPUE) for given species. Data were collected from estuarine sampling stations in five Gulf Coast states.";
    String Source_Currentness_Reference "publication date";
    String Source_Produced_Citation_Abbreviation "CAGES Relational Database";
    String sourceUrl "(source database)";
    String south_bounding_coordinate "26.058333";
    String standard_name_vocabulary "IOOS Biological Data Terminology";
    String State_or_Provine "Texas";
    String subsetVariables "minimumDepthInMeters,maximumDepthInMeters,vernacularName,scientificName,individualCount,observedIndividualLengthInCm,subsampleID,samplingEffort,samplingConditions,quantificationType,waterBody,locality";
    String summary "CAGES (Comparative Assessment of Gulf Estuarine ecoSystems) is a relational database created by NMFS-Galveston that compiles estuarine trawl data collected independently by the five Gulf States. The data included in this database table were provided by Texas Parks and Wildlife Department (TPWD). The data covers the years 1982-2005.";
    String theme_keyword_thesaurus "none";
    String title "CAGES Texas Lengths CPUE IOOS Standard";
    String Type_of_Source_Media "digital database file";
    String Use_Constraints "none";
    String west_bounding_coordinate "-97.691667";
  }
}

 

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its selection 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.

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.


 
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