Mechanisms causing reduced Arctic sea ice loss in a coupled climate model The Cryosphere DOI 10.5194/tc-7-555-2013 26 March 2013 The fully coupled climate model HadGEM1 produces one of the most accurate simulations of the historical record of Arctic sea ice seen in the IPCC AR4 multi-model ensemble. In this study, we examine projections of sea ice decline out to 2030, produced by two ensembles of HadGEM1 with natural and anthropogenic forcings included. Read more
Meteorological observations on the northern Chilean coast during VOCALS-REx Atmospheric Chemistry and Physics DOI 10.5194/acp-13-3409-2013 25 March 2013 Surface coastal observations from two automatic weather stations at Paposo (~25° S) and radiosonde observations at Paposo and Iquique (~20° S) were carried out during VOCALS-REx (VAMOS Ocean-Cloud-Atmosphere-Land Study Regional Experiment). Read more
Host model uncertainties in aerosol radiative forcing estimates: results from the AeroCom Prescribed intercomparison study Atmospheric Chemistry and Physics DOI 10.5194/acp-13-3245-2013 20 March 2013 In this AeroCom Prescribed intercomparison study we systematically isolate and quantify host model uncertainties on aerosol forcing experiments through prescription of identical aerosol radiative properties in twelve participating models. Read more
The CM SAF SSM/I-based total column water vapour climate data record: methods and evaluation against re-analyses and satellite Atmospheric Measurement Techniques DOI 10.5194/amt-6-765-2013 19 March 2013 The European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) Satellite Application Facility on Climate Monitoring (CM SAF) aims at the provision and sound validation of well documented Climate Data Records (CDRs) in sustained and operational environments. In this study, a total column water vapour path climatology from CM SAF is presented and inter-compared to water vapour data records from various data sources. Read more
Direct linking of Greenland and Antarctic ice cores at the Toba eruption (74 ka BP) Climate of the Past DOI 10.5194/cp-9-749-2013 19 March 2013 In this work we suggest a direct synchronization of Greenland and Antarctic ice cores at the Toba eruption based on matching of a pattern of bipolar volcanic spikes. Annual layer counting between volcanic spikes in both cores allows for a unique match. Read more
Local and global perspectives on the virtual water trade Hydrology and Earth System Sciences DOI 10.5194/hess-17-1205-2013 19 March 2013 Recent studies on fluxes of virtual water are showing how the global food and goods trade interconnects the water resources of different and distant countries, conditioning the local water balances. This paper presents and discusses the assessment of virtual water fluxes between a single country and its network of trading partners, delineating a country’s virtual water budget in space and time (years 1986–2010). Read more
A generalized Damköhler number for classifying material processing in hydrological systems Hydrology and Earth System Sciences DOI 10.5194/hess-17-1133-2013 15 March 2013 Assessing the potential for transfer of pollutants and nutrients across catchments is of primary importance under changing land use and climate. This paper focuses on the dynamic balance between transport and material transformation, and defines material connectivity as the effective transfer of material between elements of the hydrological cycle. Read more
Estimating the Greenland ice sheet surface mass balance contribution to future sea level rise using the regional atmospheric climate model MAR The Cryosphere DOI 10.5194/tc-7-469-2013 14 March 2013 To estimate the sea level rise originating from changes in surface mass balance of the Greenland ice sheet, we present 21st century climate projections obtained with the regional climate model MAR (Modèle Atmosphérique Régional), forced by output of three CMIP5 (Coupled Model Intercomparison Project Phase 5) general circulation models. Read more
The Geminid meteor shower during the ECOMA sounding rocket campaign: specular and head echo radar observations Annales Geophysicae DOI 10.5194/angeo-31-473-2013 12 March 2013 The ECOMA (Existence of Charge state Of meteoric smoke particles in the Middle Atmosphere) sounding rocket campaign was conducted during the Geminid meteor shower in December 2010 in order to explore whether there is a change of the properties of meteoric smoke particles due to the stream. Read more
Quantifying the uncertainty in simulating global tropospheric composition due to the variability in global emission estimates of Biogenic Volatile Organic Compounds Atmospheric Chemistry and Physics DOI 10.5194/acp-13-2857-2013 11 March 2013 In this study we examine the contribution of biogenic volatile organic compounds towards global tropospheric composition using the global 3-D chemistry transport model TM5 and the recently developed modified CB05 chemical mechanism. Read more
