Ensuring the quality, credibility and impact of scientific work is at the heart of the Met Office mission to help people stay safe and thrive.
Weather and climate science play a critical role in national decision-making, public safety and long-term environmental planning. For this reason, Met Office science undergoes rigorous scrutiny through a structured system of independent review. These processes help maintain the highest scientific standards while ensuring that intelligence continues to meet the needs of government, industry and the public.
But how does that review system work? Who is involved and why is it vital for the organisation’s scientific excellence?
The principle of independent scientific oversight
Met Office science is subject to expert external review. This ensures that scientific programmes, research and operations are robust, relevant and internationally credible. It also allows the organisation to remain aligned to emerging global developments in meteorology, oceanography, climate science and numerical weather prediction.
By drawing on specialists from universities, meteorological services and research institutions across the UK and abroad, the Met Office benefits from wide-ranging perspectives, enabling it to continuously refine its methods and improve its outputs.
The role of the Met Office Scientific Advisory Committee
One of the key bodies involved in this review process is the Met Office Scientific Advisory Committee (MOSAC). The committee meets annually and evaluates all elements of national capability, including major scientific programmes such as foundation science, weather science and climate science. These are core to everything the Met Office delivers, and therefore require regular, high-quality scrutiny.
MOSAC has three main responsibilities. First, it provides an independent assessment of the quality and relevance of scientific research that underpins national weather and climate services. This helps ensure that forecasts, warnings and long-term climate assessments are based on the strongest possible evidence.
Second, it monitors whether the organisation’s science is meeting the needs of those who rely on it, from government departments and emergency responders to private-sector customers and members of the public. Because weather and climate services underpin critical national infrastructure and planning, maintaining strong alignment with users’ needs is essential.
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Third, MOSAC fosters international connections by bringing together experts from multiple countries and research fields. This helps build a scientific community that not only supports the Met Office but also feeds into global meteorological progress. These international links are especially valuable in a world where weather and climate issues are increasingly interconnected.
Along with these three responsibilities, MOSAC also provides many additional benefits. It provides important opportunities for our staff to engage with world leading experts, raises the profile of our staff, and provides important opportunities for all staff to learn about the latest progress and advances in National Capability.
Leadership and structure
The Met Office Scientific Advisory Committee is chaired by Professor Gideon Henderson who leads discussions, provides expertise from committee members and ensures that all views are represented. The chair also works closely with the Met Office Chief Scientist to shape the agenda for each annual review, ensuring that the most important scientific developments and challenges are brought forward for evaluation.
MOSAC typically includes eight to ten members, each selected for their experience and leadership in fields such as atmospheric modelling, climate science, oceanography or numerical weather prediction, observations and supercomputing. This diversity ensures that a broad range of topics, spanning short-term forecasting to long-term climate resilience, are covered with the depth they require.
The Hadley Centre Science Review and Advisory Group
Alongside the Scientific Advisory Committee sits the Hadley Centre Science Review and Advisory Group. The Met Office Hadley Centre Science Review and Advisory Group (SRAG) brings together experts from different disciplines to advise its government customers on the content, progress, scientific excellence, relevance and impact of the Met Office Hadley Centre Climate Programme (MOHCCP) funded by the Department for Science, Innovation and Technology and managed by the Departments for Energy Security and Net Zero, Environment Food and Rural Affairs, and the Foreign, Commonwealth and Development Office.
SRAG performs top-level quality assurance on climate research, ensuring that the science produced is sufficiently rigorous to support government policy and international climate commitments. In addition, it advises on the strategic direction of the MOHCCP, helping ensure that it remains relevant not just today but in meeting future climate challenges.
SRAG also evaluates how well the MOHCCP supports broader national and international research communities. This includes examining partnerships with universities, collaborations with overseas climate centres and the role of Met Office research in shaping global understanding of climate change.
Joint annual review process
To ensure coherence across the organisation, the Met Office Scientific Advisory Committee and the Hadley Centre Science Review and Advisory Group hold a joint annual meeting. This allows both bodies to examine the interaction between weather and climate science, which is increasingly important as the two fields become more interlinked through improved modelling and integrated prediction systems.
The joint meeting provides a platform for expert dialogue on the quality, impact and direction of the organisation’s science as a whole. It also enables the two groups to coordinate their advice, reducing duplication and ensuring that the Met Office receives clear, actionable feedback.
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How expert review strengthens scientific quality
One of the major strengths of the Met Office review system lies in its openness to challenge. Expert reviewers are encouraged to question assumptions, identify gaps, highlight new opportunities and suggest improvements. This constructive challenge allows the Met Office to refine methods, strengthen its models and maintain its international reputation for excellence.
The review process also ensures that science remains customer focused. For example, committee members may assess how new research contributes to improved severe weather warnings, supports national climate risk assessments or enhances the accuracy of seasonal and long-range forecasts.
Perhaps most importantly, independent review helps the organisation prepare for scientific and technological changes. Recent discussions have highlighted the transformative potential of artificial intelligence and machine learning in weather and climate prediction. As these tools become more embedded in the forecasting process, expert oversight will play a crucial role in ensuring that they are used responsibly, effectively and transparently.
Building a resilient scientific future
The Met Office’s system of independent scientific review ensures that its research remains robust, credible and forward-looking. By combining internal expertise with external scrutiny, the organisation is able to deliver trusted science that supports national resilience, helps governments make informed decisions and contributes to global understanding of weather and climate.
As climate risks evolve and forecasting technologies advance, this rigorous review framework will remain essential. It helps the Met Office uphold its scientific integrity while continuing to innovate, ensuring that the UK benefits from world-class weather and climate science for years to come. The two committees described in this blog are just one way in which Met Office science is reviewed and quality assured.
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