英国地质调查局（BGS）升级了开放获取的全球地磁GIS门户。该门户由设在爱丁堡的世界地磁数据中心（WDC）运营，旨在收集、存储和分发全球570多个地磁观测站的数据及元数据。新门户界面现代化，用户可绘制地磁数据图表，按时间或地点筛选数据，并下载多种格式的数据。更新还引入了磁纬度和倾角过滤，方便研究人员针对极光区或赤道电流等特定现象进行研究。门户数据还用于生成国际地磁参考场（IGRF）等模型，并提供API接口，方便程序化访问。此外，新门户更易于访问元数据，增强了数据的可信度和可追溯性。

🌐 BGS运营的世界地磁数据中心（WDC）成立于1966年，负责收集、存储和分发全球地磁观测数据及其元数据。

🌍 新的WDC数据门户提供了现代化的界面，用户可以绘制地磁数据图表，并按时间或地点进行筛选，数据格式多样化，方便用户下载。

🔎 门户更新增加了磁纬度和倾角过滤功能，这对于研究极光区或赤道电流等特定地磁现象的学者来说非常重要。

💡 门户数据被用于生成国际地磁参考场（IGRF）等模型，该模型每五年更新一次，以支持全球科学家的研究和预测工作。

ℹ️ 新门户更易于访问元数据，这些信息有助于用户了解数据的来源和可靠性，从而增加对数据的信任度。

Upgrade to open-access global geomagnetism GIS portal operated by the British Geological Survey (BGS).

“The World Data Centre (WDC) for Geomagnetism, based in Edinburgh, was established in 1966 and is operated by BGS. Its mission is to collate, store and distribute data (and associated metadata) from observations of the Earth’s magnetic field.

As part of this mission, the WDC Data Portal, created by BGS, holds data and metadata on over 570 magnetic observatories around the world and provides open access to these holdings. The data portal was launched at the end of 2024 with a fresh, modern interface providing a step change in accessibility to these important datasets.

The new WDC data portal allows users to plot graphs of geomagnetic data, display availability charts and filter by time or location. It also now offers observatory K-index data as well cadences of minute, hour, day, month and year. Data can be downloaded from the portal in six different text formats, and an API (application/program interface) is available for programmatic access to the data and metadata.

A newly released update has introduced new filters, including magnetic latitude filtering and dip angle filtering. Filtering observatories by magnetic latitude and dip angle is an important tool for academics whose research targets specific phenomena, such as those in the auroral regions or the equatorial electrojet.

The data from the portal can also be used to help produce models, including the International Geomagnetic Reference Field (IGRF), which is created for the public good and is updated every five years to ensure scientists across the world can continue with their forecasts and explorations. The model’s fourteenth update was released in January 2025 and was led by BGS, alongside 18 other institutions from four continents.

One other feature of the new WDC data portal is that makes metadata — the information about the data — more easily accessible to users. This is important as it means users can trust the data and trace its origin.”

https://wdc-dataportal.bgs.ac.uk/?_ga=2.75689045.1585535874.1749160807-835623566.1749160807