Data Access Form

Dataset Title:	Seabird at-sea density anomaly
Institution:	Farallon Institute;NOAA NWFSC (Dataset ID: cciea_B_AS_DENS)
Information:	Summary \| License \| Metadata \| Background \| Subset \| Make a graph

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Variable

Optional
Constraint #1

Optional
Constraint #2

Minimum

or a List of Values

Maximum

time (UTC)

1987-01-01T00:00:00Z

2024-01-01T00:00:00Z

density_anomaly (anomaly)

-2.366071

2.450231

species_cohort

Server-side Functions

distinct()

Hover here to see a list of options. Click on an option to select it.

File type: (more information)

(Documentation / Bypass this form )

(Please be patient. It may take a while to get the data.)

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 5.364576e+8, 1.7040672e+9;
    String axis "T";
    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";
  }
  density_anomaly {
    Float32 actual_range -2.366071, 2.450231;
    String ioos_category "Other";
    String long_name "Density anomaly";
    String units "anomaly";
  }
  species_cohort {
    String ioos_category "Other";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String contributor_email "tom.good@noaa.gov";
    String contributor_name "Good";
    String Conventions "COARDS, CF-1.6, ACDD-1.3, NCCSV-1.2";
    String defaultGraphQuery "time,density_anomaly&species_cohort=\"Cassins auklet (Ce CC, Summer)\"&.draw=linesAndMarkers";
    String history 
"last updated: 2025-01-16 06:00:01
2025-05-16T11:54:09Z (local files)
2025-05-16T11:54:09Z http://erddap.caloos.org/erddap/tabledap/cciea_B_AS_DENS.html";
    String infoUrl "https://www.integratedecosystemassessment.noaa.gov/regions/california-current/about-california-current-integrated-ecosystem-assessment";
    String institution "Farallon Institute;NOAA NWFSC";
    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 sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "species_cohort";
    String summary "Data are from the SWFSC Rockfish Recruitment and Ecosystem Assessment Survey (https://swfsc.noaa.gov/textblock.aspx?Division=FED&ParentMenuId=54&id=20615), courtesy of Dr. Bill Sydeman of the Farallon Institute (wsydeman@faralloninstitute.org).. Additional Calculations: Data are shipboard counts, transformed as ln(bird density/km-2 +1) and expressed as an anomaly of log density relative to the long-term mean.;Data from Jen Zamon (jen.zamon@noaa.gov). Data are shipboard counts conducted during the NOAA Northwest Fisheries Science Center's Juvenile Salmon & Ocean Ecosystem Survey (JSOES). Additional Calculations: Data are shipboard counts, transformed as ln(bird density/km-2 +1) and expressed as an anomaly of log density relative to the long-term mean.;Data are from CalCOFI surveys (http://calcofi.org/field-work/underway-observations/380-bird-observations.html), courtesy of Dr. Bill Sydeman of the Farallon Institute (wsydeman@faralloninstitute.org). Additional Calculations: Data are shipboard counts, transformed as ln(bird density/km2 +1) and expressed as an anomaly of log density relative to the long-term mean.";
    String time_coverage_end "2024-01-01T00:00:00Z";
    String time_coverage_start "1987-01-01T00:00:00Z";
    String title "Seabird at-sea density anomaly";
  }
}

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.

(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

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.