Observational records are more often than not influenced by residual non-climatic factors which must be detected and adjusted for prior to their usage. In this work, we present a novel approach, named Radiosounding HARMonization (RHARM), providing homogenized data set of temperature, humidity wind profiles along with an estimation the measurement uncertainties 697 radiosounding stations globall...

Downscaling of climate model data is essential to local and regional impact analysis. We compare two methods of statistical downscaling to produce continuous, gridded time series of precipitation and surface air temperature at a 1/8-degree (approximately 140 km2 per grid cell) resolution over the western U.S. We use NCEP/NCAR Reanalysis data from 1950–1999 as a surrogate General Circulation Mod...

The fire weather of south-east Australia from 1985 to 2009 has been simulated using the Weather Research and Forecasting (WRF) model. The US National Oceanic and Atmospheric Administration Centers for Environmental Prediction and National Center for Atmospheric Research reanalysis supplied the lateral boundary conditions and initial conditions. The model simulated climate and the reanalysis wer...

Climate and reanalysis models contain large water and energy budget errors over tropical land related to the misrepresentation of diurnally forced moist convection. Motivated by recent work suggesting that the water and energy budget is influenced by the sensitivity of the convective diurnal cycle to atmospheric state, this study investigates the relationship between convective intensity, the c...

Abstract Regional Climate Models (RCMs) are the primary climate information available to public stakeholders and city-planners support local adaptation policies. However, with resolution in order of ten kilometres, RCMs do not explicitly represent cities their influence on (e.g. Urban Heat Island; UHI). Downscaling methods required bridge gap between city scale. A statistical–dynamical downscal...

This study presents an extended vertical grid for the regional atmospheric model COSMO, used for numerical weather prediction, reaching up to 33 km. The extended setup has been used to stably simulate eleven months in a domain covering central and northern Europe. Temperature and relative humidity have been validated using 5 radio sonde data in polar and temperate latitudes, focussing on the st...

11 Large biases associated with climate projections are problematic when it comes to 12 their regional application in the assessment of water resources and ecosystems. Here, we 13 demonstrate a method that can reduce systematic biases in regional climate projections. 14 The global and regional climate models employed to demonstrate this technique are the 15 Community Climate System Model (CCSM)...

Much of the observed wintertime increase of mortality in temperate regions is attributed to seasonal influenza. A recent reanalysis of laboratory experiments indicates that absolute humidity strongly modulates the airborne survival and transmission of the influenza virus. Here, we extend these findings to the human population level, showing that the onset of increased wintertime influenza-relat...