Hans Hersbach
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View article: Evaluation of total column water vapour products from satellite observations and reanalyses within the GEWEX Water Vapor Assessment
Evaluation of total column water vapour products from satellite observations and reanalyses within the GEWEX Water Vapor Assessment Open
Since 2011, the Global Energy and Water cycle Exchanges (GEWEX) Water Vapor Assessment (G-VAP) has provided performance analyses for state-of-the-art reanalysis and satellite water vapour products to the GEWEX Data and Analysis Panel (GDAP…
View article: The ERA5 global reanalysis from 1940 to 2022
The ERA5 global reanalysis from 1940 to 2022 Open
We provide a description and concise evaluation of the European Centre of Medium‐range Weather Forecasts Reanalysis v.5 (ERA5) global reanalysis from an additional extension back to 1940 that was released in March 2023, including its timel…
View article: Coupled land-atmosphere data assimilation developments in support of the next generation of Earth system reanalyses and seasonal prediction systems: The CopERnIcus Climate Change Service Evolution (CERISE) project
Coupled land-atmosphere data assimilation developments in support of the next generation of Earth system reanalyses and seasonal prediction systems: The CopERnIcus Climate Change Service Evolution (CERISE) project Open
The aim of CERISE is to develop new and innovative coupled land-atmosphere data assimilation approaches and land initialisation techniques to pave the way for the next generations of the Copernicus Climate Change Service (C3S) reanalysis a…
View article: Gathering Users and Developers to Shape Together the Next-Generation Ocean Reanalyses
Gathering Users and Developers to Shape Together the Next-Generation Ocean Reanalyses Open
Ocean reanalyses are reconstructions of the past ocean state combining ocean numerical models and Earth observations through data assimilation techniques. As a result of their temporal and spatial consistency and continuity compared to Ear…
View article: Comment on egusphere-2023-2808
Comment on egusphere-2023-2808 Open
Abstract. Since 2011 the Global Energy and Water cycle Exchanges (GEWEX) Water Vapor Assessment (G-VAP) has provided performance analyses for state-of-the-art reanalysis and satellite water vapour products to the GEWEX Data and Analysis Pa…
View article: Comment on egusphere-2023-2808
Comment on egusphere-2023-2808 Open
Abstract. Since 2011 the Global Energy and Water cycle Exchanges (GEWEX) Water Vapor Assessment (G-VAP) has provided performance analyses for state-of-the-art reanalysis and satellite water vapour products to the GEWEX Data and Analysis Pa…
View article: An improved estimate of daily precipitation from the <scp>ERA5</scp> reanalysis
An improved estimate of daily precipitation from the <span>ERA5</span> reanalysis Open
Precipitation is an essential climate variable and a fundamental part of the global water cycle. Given its importance to society, precipitation is often assessed in climate monitoring activities, such as in those led by the Copernicus Clim…
View article: Supplementary material to "Evaluation of Total Column Water Vapour Products from Satellite Observations and Reanalyses within the GEWEX Water Vapor Assessment"
Supplementary material to "Evaluation of Total Column Water Vapour Products from Satellite Observations and Reanalyses within the GEWEX Water Vapor Assessment" Open
Figure S1: Time series of the different climate indices listed in Table B1 (main text) between January 1988 and December 2014.The corresponding autocorrelation coefficients for lag times between 0 and 12 months are shown to the right-hands…
View article: Evaluation of Total Column Water Vapour Products from Satellite Observations and Reanalyses within the GEWEX Water Vapor Assessment
Evaluation of Total Column Water Vapour Products from Satellite Observations and Reanalyses within the GEWEX Water Vapor Assessment Open
Since 2011 the Global Energy and Water cycle Exchanges (GEWEX) Water Vapor Assessment (G-VAP) has provided performance analyses for state-of-the-art reanalysis and satellite water vapour products to the GEWEX Data and Analysis Panel (GDAP)…
View article: Rescuing historical weather observations improves quantification of severe windstorm risks
Rescuing historical weather observations improves quantification of severe windstorm risks Open
Billions of historical climatological observations remain unavailable to science as they exist only on paper, stored in numerous archives around the world. The conversion of these data from paper to digital could transform our understandin…
View article: ERA5-Land: More than 7 decades of land surface consistency with timely updates
ERA5-Land: More than 7 decades of land surface consistency with timely updates Open
Reanalysis is a key activity within the Copernicus Climate Change Service (C3S), which is funded by the European Union Copernicus programme and implemented by the European Centre for Medium-Range Weather Forecasts (ECMWF). Currently, the l…
View article: Quantifying windstorm risks by translating historical extreme events into the future
Quantifying windstorm risks by translating historical extreme events into the future Open
Extreme wind events are among the costliest natural disasters in Europe. Significant effort is dedicated to understanding the risk of such events, usually analysing observed storms in the modern era. However, it is likely that some histori…
View article: Comment on egusphere-2022-1045
Comment on egusphere-2022-1045 Open
Billions of historical climatological observations remain unavailable to science as they exist only on paper, stored in numerous archives around the world. The conversion of these data from paper to digital could transform our understandin…
View article: Rescuing historical weather observations improves quantification of severe windstorm risks
Rescuing historical weather observations improves quantification of severe windstorm risks Open
Billions of historical climatological observations remain unavailable to science as they exist only on paper, stored in numerous archives around the world. The conversion of these data from paper to digital could transform our understandin…
View article: Coupled data assimilation at ECMWF: current status, challenges and future developments
Coupled data assimilation at ECMWF: current status, challenges and future developments Open
This article presents coupled data assimilation (DA) activities at the European Centre for Medium‐Range Weather Forecasts (ECMWF). Coupled DA is an essential component of the ECMWF Earth‐system strategy. It aims at providing consistent ini…
View article: Current Challenges and Future Directions in Data Assimilation and Reanalysis
Current Challenges and Future Directions in Data Assimilation and Reanalysis Open
The first Joint WCRP1-WWRP2 Symposium on Data Assimilation and Reanalysis took place on13-17 September 2021, and it was organized in conjunction with the ECMWF Annual Seminaron observations. The last WCRP/WWRP-organized meetings were held …
View article: The ERA5 global reanalysis: Preliminary extension to 1950
The ERA5 global reanalysis: Preliminary extension to 1950 Open
The extension of the ERA5 reanalysis back to 1950 supplements the previously published segment covering 1979 to the present. It features the assimilation of additional conventional observations, as well as improved use of early satellite d…
View article: ERA5-Land: a state-of-the-art global reanalysis dataset for land applications
ERA5-Land: a state-of-the-art global reanalysis dataset for land applications Open
Framed within the Copernicus Climate Change Service (C3S) of the European Commission, the European Centre for Medium-Range Weather Forecasts (ECMWF) is producing an enhanced global dataset for the land component of the fifth generation of …
View article: Comment on essd-2021-82
Comment on essd-2021-82 Open
Abstract. Framed within the Copernicus Climate Change Service (C3S) of the European Commission, the European Centre for Medium-Range Weather Forecasts (ECMWF) is producing an enhanced global dataset for the land component of the fifth gene…
View article: ERA5-Land: A state-of-the-art global reanalysis dataset for land applications
ERA5-Land: A state-of-the-art global reanalysis dataset for land applications Open
Framed within the Copernicus Climate Change Service of the European Commission, the European Centre for Medium-Range Weather Forecasts (ECMWF) is producing an enhanced global dataset for the land component of the 5th generation of European…
View article: WFDE5: bias-adjusted ERA5 reanalysis data for impact studies
WFDE5: bias-adjusted ERA5 reanalysis data for impact studies Open
The WFDE5 dataset has been generated using the WATCH Forcing Data (WFD) methodology applied to surface meteorological variables from the ERA5 reanalysis. The WFDEI dataset had previously been generated by applying the WFD methodology to ER…
View article: Near-surface mean and gust wind speeds in ERA5 across Sweden: towards an improved gust parametrization
Near-surface mean and gust wind speeds in ERA5 across Sweden: towards an improved gust parametrization Open
The ERA5 reanalysis product has been compared with hourly near-surface wind speed and gust observations across Sweden for 2013–2017. ERA5 shows closer agreement than the previous ERA-Interim reanalysis with regard to both mean wind speed a…
View article: The ERA5 global reanalysis
The ERA5 global reanalysis Open
Within the Copernicus Climate Change Service (C3S), ECMWF is producing the ERA5 reanalysis which, once completed, will embody a detailed record of the global atmosphere, land surface and ocean waves from 1950 onwards. This new reanalysis r…
View article: WFDE5: bias adjusted ERA5 reanalysis data for impact studies
WFDE5: bias adjusted ERA5 reanalysis data for impact studies Open
The WFDE5 dataset (C3S, 2020) has been generated using the WATCH Forcing Data (WFD) methodology applied to surface meteorological variables from the ERA5 reanalysis. The WFDEI dataset had previously been generated by applying the WFD metho…
View article: The ERA5 Global Reanalysis: achieving a detailed record of the climate and weather for the past 70 years.
The ERA5 Global Reanalysis: achieving a detailed record of the climate and weather for the past 70 years. Open
<p>Reanalysis is a key contribution to the Copernicus Climate Change Service (C3S) that is implemented at the European Centre for Medium-Range Weather Forecasts (ECMWF) on behalf of the European Commission. The most recent ECMWF rean…
View article: Near-surface mean and gust wind speed in ERA5 across Sweden: towards an improved gust parametrization
Near-surface mean and gust wind speed in ERA5 across Sweden: towards an improved gust parametrization Open
<p>Driven by the twenty-century surface air temperature rise, extreme wind events could change in their frequency and magnitude of occurrence, with drastic impacts on human and ecosystems. As a matter of fact, windstorms and extreme …
View article: Skin temperature from the Thermal Infrared Sounder IASI
Skin temperature from the Thermal Infrared Sounder IASI Open
Skin temperature (Tskin) derived from infrared sensors on board satellites provides a continuous view of Earth’s surface day and night and allows for the monitoring of global temperature changes relevant for climate trends. Tskin from the …
View article: The GEWEX Water Vapor Assessment archive of water vapour products from satellite observations and reanalyses
The GEWEX Water Vapor Assessment archive of water vapour products from satellite observations and reanalyses Open
The Global Energy and Water cycle Exchanges (GEWEX) Data and Assessments Panel (GDAP) initiated the GEWEX Water Vapor Assessment (G-VAP), which has the main objectives to quantify the current state of the art in water vapour products being…