ERDDAP

Data Hosted via this data server

Animal Borne Ocean Sensors (AniBOS) data

• movement data
• platform metadata

Argo

• Argo float vertical profile measurements

CLIVAR and Carbon Hyrdrographic Data Office (CCHDO) GO SHIP data

• bottle data
• CTD data

Global Drifter Program

• 1 hour interpolated QC Drifter data
• 6 hour interpolated QC Drifter data

Joint Archive for Sea Level (JASL)/University of Hawaii Sea Level Center (UHSLC) Research Quality Data Set

• hourly tide gauge data
• daily tide gauge data

Marine Mammals Exploring the Oceans Pole to Pole (MEOP) data

• animal profile data

OceanOPS metadata

• active WMO ID list
• operational platform metadata
• passport metadata

Observing System Monitoring Center (OSMC) data

• past 90 days of realtime OSMC data
• Argo profile data
• flattened observations from the GTS
• normalized observations from the GTS
• profile data from the GTS
• surface trajectory data from the GTS
• timeseries data from the GTS

TAO/TRITON, RAMA, and PIRATA Buoys

• 1977-present daily air temperature data
• 1977-present daily sea surface temperature data
• 1977-present daily sea water temperature data
• 1977-present daily wind speed and direction data
• 1987-present daily sea water salinity data
• 1988-2020 daily ADCP data
• 1989-present daily wind stress data
• 1992-present daily sea surface salinity data
• 1997-present daily precipitation data

Easier Access to Scientific Data

Our focus is on making it easier for you to discover and use scientific data.

• ERDDAP acts as a middleman between you and various remote data servers. When you request data from ERDDAP, ERDDAP reformats the request into the format required by the remote server, sends the request to the remote server, gets the data, reformats the data into the format that you requested, and sends the data to you.
• ERDDAP offers an easy-to-use, consistent way to request data: via the OPeNDAP standard. Many datasets can also be accessed via ERDDAP's Web Map Service (WMS).
• ERDDAP returns data in the common file format of your choice. ERDDAP offers all data as .html table, ESRI .asc and .csv, Google Earth .kml, OPeNDAP binary, .mat, .nc, ODV .txt, .csv, .tsv, .json, and .xhtml. ERDDAP can also return a .png or .pdf image with a customized graph or map. ERDDAP also standardizes dates and times. For string times, ERDDAP always uses the ISO 8601:2004(E) standard format. For numeric times, ERDDAP always uses "seconds since 1970-01-01T00:00:00Z". ERDDAP always uses the Zulu (UTC, GMT) time zone to remove the difficulties of working with different time zones and standard time versus daylight saving time. ERDDAP has a service to convert a string time to/from a numeric time.
• ERDDAP has web pages (for humans with browsers) and RESTful web services (for computer programs).

For a quick introduction to ERDDAP, watch the first half of this video. (5 minutes) In it, a scientist downloads ocean currents forecast data from ERDDAP to model a toxic spill in the ocean using NOAA's GNOME software (in 5 minutes!). Thanks to Rich Signell. (One tiny error in the video: when searching for datasets, don't use AND between search terms. It is implicit.)

Find out more about ERDDAP.

PMEL Data Providers: You can set up your own ERDDAP server and serve your own data. To have your data hosted here, contact Ellen Koukel.

Start Using ERDDAP:
    Search for Interesting Datasets

• Do a Full Text Search for Datasets

  Search

• View a List of All 30 Datasets

• Search for Datasets by Category

  Datasets can be categorized in different ways by the values of various metadata attributes. Click on an attribute (cdm_data_type, institution, ioos_category, keywords, long_name, standard_name, variableName) to see a list of categories (values) for that attribute. Then, you can click on a category to see a list of relevant datasets.

• Search for Datasets with Advanced Search 

• Search for Datasets by Protocol

  Protocols are the standards which specify how to request data. Different protocols are appropriate for different types of data and for different client applications.
   

  Protocol	Description
  griddap datasets	Griddap lets you use the OPeNDAP hyperslab protocol to request data subsets, graphs, and maps from gridded datasets (for example, satellite data and climate model data). griddap documentation
  tabledap datasets	Tabledap lets you use the OPeNDAP constraint/selection protocol to request data subsets, graphs, and maps from tabular datasets (for example, buoy data). tabledap documentation
  "files" datasets	ERDDAP's "files" system lets you browse a virtual file system and download source data files. WARNING! The dataset's metadata and variable names in these source files may be different than elsewhere in ERDDAP! You might prefer using the dataset's Data Access Form instead. "files" documentation
  WMS datasets	The Web Map Service (WMS) lets you request an image with data plotted on a map. WMS documentation

   

• Developers of computer programs and JavaScripted web pages can search for datasets via

  • ERDDAP's RESTful search services
  • ERDDAP's allDatasets tabular dataset that has a row of information for each dataset
  • ERDDAP's OpenSearch 1.1 Service

• Search Multiple ERDDAPs

  There are two unofficial ways to search multiple ERDDAPs for datasets: Search Multiple ERDDAPs and ERDDAP Dataset Discovery.

Converters
In addition to serving data, ERDDAP has some handy converters:

Metadata
ERDDAP has an
FGDC Web Accessible Folder (WAF) with FGDC‑STD‑001‑1998 metadata files and an
ISO 19115 Web Accessible Folder (WAF) with ISO 19115‑2/19139 metadata files for all of the geospatial datasets in this ERDDAP.

RESTful Web Services
You can bypass ERDDAP's web pages and use ERDDAP's RESTful web services (for example, for searching for datasets, for downloading data, for making maps) directly from any computer program (for example, Matlab, R, or a program that you write) and even from web pages (via HTML image tags or JavaScript). RESTful Web Services documentation

Other Features