Data sources

Every forecast on Burning Swell is built from open data. Here is each source, what we use it for, the credit its owner asks for in their own words, and its licence.

NOAA

Used for: Waves (GFS-Wave), air temperature and sky (GFS), sea temperature (OISST), tides on United States coasts (CO-OPS)
Licence: Public domain, as a work of the United States government

The National Oceanic and Atmospheric Administration asks for no credit line. Its terms set three conditions instead, which we keep:

The information on National Weather Service (NWS) Web pages are in the public domain, unless specifically noted otherwise, and may be used without charge for any lawful purpose so long as you do not: 1) claim it is your own (e.g., by claiming copyright for NWS information -- see below), 2) use it in a manner that implies an endorsement or affiliation with NOAA/NWS, or 3) modify its content and then present it as official government material.

As NOAA's National Weather Service publishes it

We credit NOAA anyway, and nothing on Burning Swell is official government material: our figures are our own reading of NOAA's.

NWS terms of use CO-OPS terms of use OISST at NCEI

ECMWF

Used for: Waves (IFS-WAM)
Licence: CC BY 4.0, with ECMWF's terms of use for open data

The European Centre for Medium-Range Weather Forecasts asks a service built on its open data to carry these four statements:

This service is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF)
Source www.ecmwf.int
This ECMWF data is published under a Creative Commons Attribution 4.0 International (CC BY 4.0). https://creativecommons.org/licenses/by/4.0/
ECMWF does not accept any liability whatsoever for any error or omission in the data, their availability, or for any loss or damage arising from their use.

As ECMWF publishes it

What we changed: we sample ECMWF's grids at each spot, combine them with the other models' figures and round them for display.

ECMWF terms of use ECMWF open data

Deutscher Wetterdienst

Used for: Waves (GWAM worldwide, EWAM in European waters)
Licence: CC BY 4.0, with DWD's rules for naming it as the source

Germany's national weather service sets the source note in its own words:

Quelle: Deutscher Wetterdienst
Source: Deutscher Wetterdienst

As DWD publishes it, in German and in English

We combine GWAM and EWAM with the other models rather than show them unchanged. For data that has been processed, DWD asks at least to be named in a central list of sources, which is this page, and suggests notes such as Based on data from Deutscher Wetterdienst, own elements added.

DWD rules for the source note DWD legal notice

Météo-France

Used for: Waves along the coasts of western Europe (MFWAM)
Licence: Licence Ouverte 2.0, the French government's open licence

France's national weather service publishes its model data under that licence, which asks a reuser to name the source this way:

An acknowledgement of the authorship of the “Information”: its source (at least, the name of the “Grantor”) and the date of the most recent update of the reused “Information”.

As Etalab's English version of the Licence Ouverte 2.0 words it

We name Météo-France MFWAM in the footer of every page its figures feed. The data is Météo-France's open data, published on meteo.data.gouv.fr and updated with each model run.

Licence Ouverte 2.0, in English Météo-France open data

Copernicus Marine Service

Used for: Waves in the Mediterranean (Mediterranean Sea Waves Analysis and Forecast)
Licence: The Copernicus Marine Service licence, free of charge

The European Union's ocean service asks a product built from its data to name it and its dataset this way:

Generated using E.U. Copernicus Marine Service Information; https://doi.org/10.48670/mds-00373

The wording of the Copernicus Marine licence, with the dataset's DOI in its place

Copernicus Marine licence The dataset

EOT20 tide model

Used for: Tides, wherever no NOAA station predicts them
Licence: CC BY 4.0

EOT20 is the global ocean tide model of the Technical University of Munich (DGFI-TUM). Its authors ask to be cited as:

Hart-Davis Michael, Piccioni Gaia, Dettmering Denise, Schwatke Christian, Passaro Marcello, Seitz Florian (2021). EOT20 - A global Empirical Ocean Tide model from multi-mission satellite altimetry. SEANOE. https://doi.org/10.17882/79489

As SEANOE publishes it, under “How to cite”

EOT20 at SEANOE

OpenStreetMap

Used for: The map under the forecast layers, drawn with Protomaps; the time-zone boundaries every spot's local time comes from, built by timezone-boundary-builder
Licence: Open Database License (ODbL)

OpenStreetMap asks for a credit on the map itself, linked to its copyright page, and accepts its long-standing form, which our map shows in its corner:

© OpenStreetMap contributors

As the OpenStreetMap Foundation's attribution guidelines give it