NPL’s satellite (aptly called TRUTHS) will help resolve uncertainties in the Global Warming data
The technologies used in current Earth Observation satellites have intrinsic uncertainties (measurement errors) that do not necessarily matter for individual missions but matter a great deal when we need to study the small incremental changes over long periods of time that are typical of Climate Change.
In a lecture now screening at NPL’s site in Second Life, Dr Nigel Fox describes the need for a calibration laboratory in space (called TRUTHS), that would enable scientists to correct errors in the data from other satellites.
TRUTHS or a similar capability would enable scientists to improve the computerised climate models, helping us to better understand Climate Change and the impact of any measures we might take to reduce Global Warming. This is the latest lecture in a video podcast series called ‘Celebrating Science’ from NPL.
The Stern review (reported on today by the BBC and the world’s media) underlines the importance of hard scientific data. According to the BBC’s summary of Stern’s Review “If no action is taken on emissions, there is more than a 75% chance of global temperatures rising between two and three degrees Celsius and a 50% chance that average global temperatures could rise by five degrees Celsius over the next 50 years”. He argues that The world has to act now on climate change or face devastating economic consequences.