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ERDDAP
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| Dataset Title: | Clam Survey OW1 Age Data
|
| Institution: | Rutgers University (Dataset ID: clam_ow1_clam_age) |
| Range: | longitude = -74.46855 to -74.0867°E, latitude = 38.818718 to 39.16725°N, time = 1677-09-21T00:12:43Z to 2023-08-13T02:49:55Z |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Data Access Form
| Files
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Attributes {
s {
index {
Float64 _FillValue 9223372036854775807;
Float64 actual_range 0, 391;
String ioos_category "Unknown";
String long_name "Index";
}
year {
Float64 _FillValue 9223372036854775807;
Float64 actual_range 2022, 2023;
String ioos_category "Time";
String long_name "Year";
}
station {
String ioos_category "Identifier";
String long_name "Station";
}
clam_id {
String description "ID used for clam (year_strata_station_clamnumber)";
String ioos_category "Identifier";
String long_name "Clam Id";
String source_name "UNIQUE_CLAM_ID";
}
sample_number {
Float64 _FillValue 9223372036854775807;
Float64 actual_range 1, 25;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
String description "number order of aged clams within sample; does not match clam_number in catch data";
String ioos_category "Statistics";
String long_name "Sample Number";
String source_name "SAMPLE_NUM";
}
length {
Float64 _FillValue -999.0;
Float64 actual_range 37.7, 181.8;
String description "length of longest dimension of clam shell";
String ioos_category "Unknown";
String long_name "Length";
String source_name "SHELL_LENGTH_mm";
String units "mm";
}
age {
Float64 _FillValue -999.0;
Float64 actual_range 1.0, 31.0;
String description "age of clam";
String ioos_category "Time";
String long_name "Age";
String source_name "AGE_YEARS";
String units "years";
}
additional_time {
String description "indicates whether the individual clam died mid-growth between two years [Y] or was the exact age it was assigned [N]. Meaning, if the clam laid 3 annual growth rings, and grew more after turning 3, before it died, then the clam would be aged 3+. But, if a clam died right after laying down its third annual growth ring, then it would be exactly 3.";
String ioos_category "Time";
String long_name "Additional Time";
String source_name "PLUS_Y_N";
}
towID {
String description "unique identifier for single tow within a cruise; Indicates year the tow took place, followed by station ID. The number that follows 'ST' indicates strata, the final number is the station number.";
String ioos_category "Identifier";
String long_name "Tow ID";
}
time {
String _CoordinateAxisType "Time";
Float64 actual_range -9.223372037e+9, 1.691894995e+9;
String axis "T";
String calendar "gregorian";
String description "time of dredge";
String ioos_category "Time";
String long_name "Time";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue -999.0;
Float64 actual_range 38.81871666666667, 39.16725;
String axis "Y";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String ioos_category "Location";
String long_name "Latitude";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float64 _FillValue -999.0;
Float64 actual_range -74.46855, -74.0867;
String axis "X";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String ioos_category "Location";
String long_name "Longitude";
String standard_name "longitude";
String units "degrees_east";
}
speciesID {
Float64 _FillValue NaN;
Float64 actual_range 403.0, 403.0;
String description "numeric identifier for species based on NOAA National Marine Fisheries Service codes";
String ioos_category "Identifier";
String long_name "NOAA species id code";
Float64 missing_value NaN;
}
species_scientific_name {
String ioos_category "Taxonomy";
String long_name "species scientific name";
}
species_common_name {
String ioos_category "Taxonomy";
String long_name "species common name";
}
}
NC_GLOBAL {
String acknowledgement "Funding provided by Orsted.";
String cdm_data_type "Point";
String comment "Survey performed aboard F/V Joey D with Captain Ed Platter";
String contributor_name "Daphne Munroe, Sarah Borsetti, Jason Morson, Ailey Sheehan, Kaycee Coleman, Laura Nazzaro";
String contributor_role "Principal Investigator, Fisheries Scientist, Fisheries Scientist and Program co-Principal Investigator, Lab Manager, Project Management, Data Management";
String Conventions "COARDS, CF-1.10, ACDD-1.3";
String creator_email "ecosystemdata at marine.rutgers.edu";
String creator_institution "Rutgers University";
String creator_name "Rutgers Center for Ocean Observing Leadership Ecosystem Data Team";
String creator_type "group";
String creator_url "rowlrs.marine.rutgers.edu";
Float64 Easternmost_Easting -74.0867;
String featureType "Point";
Float64 geospatial_lat_max 39.16725;
Float64 geospatial_lat_min 38.81871666666667;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -74.0867;
Float64 geospatial_lon_min -74.46855;
String geospatial_lon_units "degrees_east";
String history
"2025-12-23T04:06:11Z (local files)
2025-12-23T04:06:11Z https://rowlrs-data.marine.rutgers.edu/tabledap/clam_ow1_clam_age.das";
String id "clam_ow1_clam_age";
String infoUrl "rowlrs.marine.rutgers.edu";
String institution "Rutgers University";
String keywords "additional, additional_time, age, clam, clam_id, code, common, data, identifier, index, latitude, length, longitude, name, noaa, number, ow1, rutgers, sample, sample_number, scientific, species, species_common_name, species_scientific_name, speciesID, station, statistics, survey, taxonomy, time, tow, towID, university, year";
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.";
Float64 Northernmost_Northing 39.16725;
String platform_name "F/V Joey D";
String program "Ocean Wind 01 Fisheries Monitoring Plan";
String project "Ocean Wind 01 Fisheries Monitoring Plan, Clam Dredge";
String publisher_email "ecosystemdata at marine.rutgers.edu";
String publisher_institution "Rutgers University";
String references "Munroe, D., Morson, J., Borsetti, S., and Hennen, D. 2023. Sampling high biomass but rare benthic animals: Methods for surveying commercial clam stocks using a hydraulic dredge. Fisheries Research, 258";
String sea_name "Mid-Atlantic Bight";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 38.81871666666667;
String standard_name_vocabulary "CF Standard Name Table v70";
String summary "Fisheries Monitoring in Ocean Wind 01. One summer survey once per year pre-construction in 2022 and 2023. Target for each tow is 5 minutes at 2.5 knots with a goal of twenty stations in the lease area and ten at the control site. The dredge is a modified commercial clam dredge to better sample younger clam sizes (Munroe et al., 2023). For each tow, the total volume of clams caught, and the number of individual clams caught will be recorded. The realized tow distance will be calculated from dredge sensor data that records time on bottom and time hauled back, and vessel track recordings. This dataset includes age data from a subset of clams sampled each dredge.";
String time_coverage_end "2023-08-13T02:49:55Z";
String time_coverage_start "1677-09-21T00:12:43Z";
String title "Clam Survey OW1 Age Data";
Float64 Westernmost_Easting -74.46855;
}
}
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.