The PMEL ERDDAP

Data Hosted via this data server

By PMEL Research Efforts

Arctic research at PMEL focuses on integrated, multi-disciplinary high latitude research, conducted by a consortium of PMEL principal investigators, using a variety of conventional, remotely controlled, and autonomous platforms.

• Arctic Saildrone missions

The Atmospheric Chemistry Group (ACG) has led and participated in research cruises for over 30 years to map spatial and temporal distributions of natural and anthropogenic aerosol particles in remote marine regions and downwind of continental sources. ACG has also measured the chemical composition of aerosol particles at stationary sites since 1992, as well as moving towards measuring aerosol properties using unmanned aerial systems.

• Global dms database
• Long-term air chemistry sub and super micron experiments
• Atmospheric chemistry data

Climate-Weather Interface (CWI) research at PMEL focuses on understanding how weather and climate are connected through subseasonal variability. CWI’s Arctic surface flux project estimates surface latent and sensible fluxes using in situ Arctic observations.

• CGBN US and Canadian Arctic flux data
• Saildrone Arctic flux data
• Sikuliaq Arctic flux data

The Earth-Ocean Interactions (EOI) program works to discover, measure, understand, and predict ecological impacts of natural chemical, biological, and geological processes between the solid Earth and ocean.

• Miniature temperature recorder data

The Ecosystems & Fisheries-Oceanography Coordinated Investigations (EcoFOCI) joint research program studies the ecosystems of the northern Pacific Ocean, Bering Sea, and US Arctic Ocean to improve the understanding of ecosystem dynamics, applying that understanding to management of living marine resources.

• M2 surface mooring weather data
• Prawler data
• Cruise profile data
• Bering and Chukchi Seas and Arctic Ocean profile data

Global Observations of Biogeochemistry and Ocean Physics (GOBOP) research at PMEL monitors and studies the distribution and variations in ocean temperature, salinity, oxygen, carbon, nutrients, and currents, and how those relate to climate, ocean dynamics, and ecosystems. Specifically, they work on all three Argo missions (Core, Deep, and BGC).

• Argo OHCA and RFROM data
• Engineering data for BGC Navis floats

The Global Tropical Moored Buoy Array (GTMBA) program designs, develops, and sustains moored buoy observing systems in the tropics for climate research and forecasting through multi-national efforts. The TAO/TRITON array is set in the Pacific Ocean, PIRATA in the Atlantic Ocean, and RAMA in the Indian Ocean.

• OceanSITES hourly long time series data for PIRATA array
• OceanSITES hourly long time series data for RAMA array
• OceanSITES air-sea flux data for TAO array
• Daily measurements for PIRATA, RAMA, and TAO/TRITON

Ocean Carbon research at PMEL documents the evolving state of ocean carbon chemistry with high quality measurements, studies the processes controlling the role of the ocean in the global carbon cycle, and investigates how rising atmospheric CO2 and climate change affect the chemistry of the oceans.

• Surface ocean CO2 and ocean acidification mooring time series from over 40 moorings
• GLODAP Arctic data profile

The Ocean Climate Stations (OCS) project focuses on making meteorological and oceanic reference measurements from autonomous platforms, which are used to improve understanding of air-sea interactions and their role within the climate system.

• OceanSITES air-sea flux data for KEO mooring
• OceanSITES hourly long time series data for KEO mooring
• OceanSITES air-sea flux data for PAPA mooring
• OceanSITES hourly long time series data for PAPA mooring
• TPOS Saildrone missions

PMEL also hosts joint hurricane observation missions with NOAA’s Atlantic Oceanographic & Meteorological Laboratory (AOML).

• Hurricane Monitoring Saildrone missions

By PMEL Collaborators

NOAA Fisheries is responsible for the stewardship of the nation’s ocean resources and habitat, with an emphasis on healthy ecosystems.

• Alaska Fisheries Science Center (AFSC) Bering Sea Pollock Survey Saildrone mission
• Northwest Fisheries Science Center (NWFSC) Hake Survey Saildrone mission
• NWFSC West Coast Survey Saildrone missions
• Southwest Fisheries Science Center (SWFSC) Saildrone missions

NOAA's National Ocean Service (NOS) provides data, tools, and services that protect ecosystems and enhance climate and economic resilience.

• Arctic Single Beam Mapping Saildrone mission

NOAA's Observing System Monitoring Center (OSMC) works to facilitate broad discovery ocean and climate observations.

• Forecast uncertainty cones
• 60-day real time data

OceanSITES is a global system of long-term ocean reference stations that collect high-quality, high-frequency data.

• Deep time series global mooring data

Woods Hole Oceanographic Institution is an independent organization dedicated to ocean research, exploration, and education.

• WHOI OceanSITES surface flux data from moorings

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 . (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 Eugene Burger, Kevin O'Brien, or Ellen Koukel.

Start Using ERDDAP:
    Search for Interesting Datasets

• Do a Full Text Search for Datasets

  Search

• View a List of All 321 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