Top Menu

20th Century Reanalysis

Data Rescue Disoveries and Need Areas by Philip Brohan Hadley Centre

Both the “fog of ignorance” and “glow of discovery” emphasize need for data rescue






Philip Brohan, climate scientist at the Met Office Hadley Centre, combines information from old documents, tree-rings and large computers, into a clear picture of what the weather used to be like. At the August 2014 ACRE (Atmospheric Circulation Reconstructions over the Earth) workshop, attended by IEDRO, Philip presented this particular visualization (seen below) of mean […]

Continue Reading

Press Release: U.S. Climate Change Research in Peril






Deale, Maryland – Due to recent budget cuts, the National Oceanic and Atmospheric Administration has abandoned its effort to reconstruct a detailed picture of hour-by-hour changes in the atmosphere stretching back to the 19th century. The 20th Century Reanalysis is a project that has already helped scientists better understand the causes of historic weather events […]

Continue Reading

Recovering Weather Data from Arctic Expeditions






MILLIONS of Arctic weather observations were recorded by US Navy and Coast Guard officers since 1850. Until now most of this data has been inaccessible to climate scientists. A new collaboration between NOAA, the National Archives and thousands of citizen volunteers participating in the Zooniverse Old Weather project are making the original logbooks and the […]

Continue Reading

Press Release: IEDRO Contributes Critical Data to 20th Century Reanalysis Project






Deale, Maryland – On January 25, 2011, a review article of the Twentieth Century Reanalysis Project was published in the Quarterly Journal of the Royal Meteorological Society. This article reviewed the work of the Twentieth Century Reanalysis Project, which aims to create a comprehensive dataset of global atmospheric circulation from 1871 to the present. The […]

Continue Reading