![\"Cryosat](\"https:\/\/www.newsbeep.com\/nz\/wp-content\/uploads\/2026\/03\/CryoSat_key_to_measuring_sea-ice_thickness_pillars-1200x589.jpg.webp.webp\")
CryoSat key to measuring sea-ice thickness Credit: AWI\/ESA\/geoGraphics<\/p>\n
In January 2026, ESA\u2019s CryoSat satellite, primarily designed to monitor polar ice, detected a powerful geomagnetic storm triggered by an X-class solar flare. This was made possible after the satellite\u2019s magnetometer was upgraded with new software, allowing it to measure fluctuations in Earth\u2019s magnetic field with scientific precision. The data gathered by CryoSat, which complemented observations from ESA\u2019s Swarm mission, provided important insights into the impact of solar storms on Earth\u2019s magnetosphere, marking a significant achievement in satellite technology and Earth observation. This new capability was highlighted in a recent study published in Geophysical Research Letters.<\/p>\n
CryoSat\u2019s New Role: Measuring Geomagnetic Storms<\/p>\n
ESA\u2019s CryoSat satellite has long been a cornerstone of polar ice research, known for its precise radar measurements that track minute changes in ice sheets and sea ice. However, an unexpected upgrade has transformed CryoSat into a crucial instrument for measuring Earth\u2019s geomagnetic field, including fluctuations caused by solar flare events.<\/p>\n
Originally, the satellite\u2019s magnetometer was designed purely to control its orientation in space, helping CryoSat stay on course while studying ice. This operational tool ensured that CryoSat maintained its position, ensuring its advanced radar instruments could accurately target Earth\u2019s ice-covered regions. However, in late 2025, ESA remotely upgraded the magnetometer\u2019s software, enabling it to record and measure the variations in Earth\u2019s magnetosphere. This seemingly small upgrade opened the door for CryoSat to join ESA\u2019s other magnetic field research missions, like Swarm, in contributing to geomagnetic studies.<\/p>\n
ESA\u2019s Mission Manager for Swarm, Anja Stromme, called this an \u201caccomplishment\u201d that benefits the broader geomagnetic research community. For the first time, CryoSat, typically confined to ice data, was able to complement dedicated magnetic missions with scientifically valuable measurements of geomagnetic storms.<\/p>\n
CryoSat key to measuring sea-ice thickness
Credit: AWI\/ESA\/geoGraphics<\/p>\n
Unveiling the Mystery of Geomagnetic Storms<\/p>\n
In January 2026, CryoSat put its newly acquired capabilities to the test when a massive X-class solar flare sent powerful radiation toward Earth. This triggered one of the most intense geomagnetic storms ever recorded, with spectacular auroras visible in regions far south of their usual range. The storm caused disturbances in Earth\u2019s magnetic field<\/a>, reaching unprecedented levels of intensity.<\/p>\n CryoSat\u2019s magnetometer was able to capture these fluctuations with remarkable precision, providing data that mirrored the observations of ESA\u2019s Swarm mission. This collaboration marked a significant milestone in space exploration and geomagnetic science, showing how satellites designed for one purpose could adapt and make invaluable contributions to other scientific fields. This achievement was detailed in a recent study published in Geophysical Research Letters<\/a>.<\/p>\n \u201cThis innovation is both unique and exciting,\u201d said Tommaso Parrinello, ESA\u2019s CryoSat Mission Manager. \u201cBy leveraging data from a system that\u2019s been used for 16 years to control satellite orientation, we can now generate valuable scientific data without any additional cost.\u201d<\/p>\n CryoSat\u2019s Unexpected Contribution to Science<\/p>\n For nearly 16 years, CryoSat\u2019s primary mission was to observe polar ice, using radar technology to measure ice thickness and detect changes beneath the surface. But with the new software upgrade, the satellite could now accurately track geomagnetic storm data as it passed over Earth. This has allowed the scientific community to receive high-quality, complementary data alongside other magnetic field-focused missions, such as Swarm, ESA\u2019s dedicated mission to study Earth\u2019s magnetic environment.<\/p>\n CryoSat\u2019s new magnetometer data complements Swarm\u2019s findings, providing an additional perspective on Earth\u2019s geomagnetic conditions. The precision and low noise levels of CryoSat\u2019s measurements are what make this data so valuable. Scientists are now using the satellite\u2019s findings to refine models of how solar events impact Earth\u2019s magnetosphere.<\/p>\n \u201cIt\u2019s about using existing systems in innovative ways,\u201d Parrinello explained. \u201cWe\u2019re not just measuring ice; we\u2019re now capturing data that helps us understand the powerful forces affecting our planet\u2019s magnetic field.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"In January 2026, ESA\u2019s CryoSat satellite, primarily designed to monitor polar ice, detected a powerful geomagnetic storm triggered…\n","protected":false},"author":2,"featured_media":335105,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[111,139,69,147,392],"class_list":["post-335104","post","type-post","status-publish","format-standard","has-post-thumbnail","category-space","tag-new-zealand","tag-newzealand","tag-nz","tag-science","tag-space"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/335104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/comments?post=335104"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/335104\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media\/335105"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media?parent=335104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/categories?post=335104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/tags?post=335104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"Earth](\"https:\/\/www.newsbeep.com\/nz\/wp-content\/uploads\/2026\/03\/Earth_s_magnetic_field_during_peak_solar_flare_January_2026_pillars-1200x675.jpg.webp.webp\")
Earth\u2019s magnetic field during peak solar flare, January 2026
Credit: ESA (data source: A. Grayver\/University of Cologne, and N. Olsen\/DTU).<\/p>\n