Despite domain-specific digital archives are growing in number and size, there is a lack of studies describing their architectures and runtime characteristics. This paper investigates the storage landscape of the European Centre for Medium-Range Weather Forecasts (ECMWF) whose storage capacity has reached 100 PB and experiences an annual growth rate of about 45%. Out of this storage, we examine...

A method is proposed to increase the accuracy of satellite sensorderived near-surface humidity estimates. The method uses an operational atmospheric circulation model to correct the satellite sensor estimates of humidity from their regional bias. The method was applied to twelve orbits of the Special Sensor Microwave/Imager (SSM/I) selected between 1997 and 1998. The SSM/I-derived humidity esti...

In this study, we compare specific humidity profiles derived from Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) radio occultation (RO) from August to November 2006 with those from different types of radiosonde and from ECMWF global analysis. Comparisons show that COSMIC specific humidity data agree well with ECMWF analysis over different regions of the world f...

The authors present a new, observationally based estimate of the atmospheric energy budget for the Antarctic polar cap (the region poleward of 708S). This energy budget is constructed using state-of-the-art reanalysis products from ECMWF [the ECMWF Interim Re-Analysis (ERA-Interim)] and Clouds and the Earth’s Radiant Energy System (CERES) top-of-atmosphere (TOA) radiative fluxes for the period ...

European Centre for Medium-Range Weather Forecasts (ECMWF) ERA-Interim reanalysis total precipitation estimates are validated against ten years of in situ precipitation measurements onboard of ships over the Baltic Sea. A statistical analysis for binary forecasts and mean rain rates derived from all data show a good agreement with observations. However, a closer look reveals an underestimation ...

We present a framework for forecasting significant wave height on the Southwestern Atlantic Ocean using long short-term memory algorithm (LSTM), trained with ERA5 database available through Copernicus Climate Data Store (CDS) implemented by ECMWF (European Center Medium Range Forecast) and also buoy data. The predictions are made seven different locations in Brazilian coast, where data availabl...

The wind and wave products from the ERS mission provide an invaluable data set. This paper provides an overview of the performance of both ERS-1 and ERS-2 products on the basis of surface winds from the consistent ECMWF 40-Year Reanalysis (ERA-40), and wave fields from a long term stand-alone wave model hindcast run forced by ERA-40 winds. Furthermore, buoy and other in-situ measurements are us...

The Megha-Tropiques (MT) satellite, a joint IndoFrench mission, was launched by ISRO’s PSLV-C18 on 12 October 2011 from Sriharikota, India. SAPHIR, a microwave humidity sounder on-board Megha Tropiques operates in six channels with frequencies around 183.31 GHz. A radiative transfer simulationbased operational algorithm has been developed to retrieve layer-averaged relative-humidity (LARH) for ...

Figure 6: Density map of blocking events extracted from the UCLA AGCM model data (1985-1989). impact of sea surface temperature anomalies on the rainfall over northeast brazil. Changes in Baroclinic Wave Activity during the Life Cycles of Low-Frequency Circulation Anomalies. Figure 3: Density map of cyclopresence during the northern winter from the ECMWF Advanced Analyses dataset. Figure 4: Den...

[1] Cirrus clouds play an important role both radiatively and dynamically in the tropics. Understanding the mechanisms responsible for the formation and persistence of tropical cirrus is an important step in accurately predicting cirrus in forecast and climate models. In this study, we compare ground-based measurements of cloud properties with those predicted by the ECMWF model at a location in...