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Four years ago, communities across the East Coast faced Superstorm Sandy, a weather system that claimed more than 70 lives in the United States and caused $65 billion in damages. Earlier this month, H...
The role of the high resolution weather forecast in estimating the run-offusing a simple hydrological model
high resolution forecast heavy precipitation
2015/9/16
Recent and repeated episodes of severe weather in Italy have stressed the need to have a suffi ciently accurate forecast
to give adequate warning to the involved areas. The impact of the precipitatio...
Earlier onset of the Indian monsoon in the late twentieth century: The role of anthropogenic aerosols
Indian monsoon late twentieth century anthropogenic aerosols
2014/5/20
The impact of the late twentieth century increase of anthropogenic aerosols on the Indian monsoon onset was investigated with a state-of-the-art climate model with fully interactive aerosols and chemi...
The role of the QBO in the inter-hemispheric coupling of summer mesospheric temperatures
the QBO the inter-hemispheric summer mesospheric temperatures
2011/1/20
Inter-hemispheric coupling between the polar summer mesosphere and planetary-wave activity in the extra-tropical winter stratosphere has recently been inferred using Polar Mesospheric Cloud (PMC) prop...
Aerosol nucleation and its role for clouds and Earth's radiative forcing in the aerosol-climate model ECHAM5-HAM
Aerosol nucleation clouds and Earth's radiative forcing the aerosol-climate model ECHAM5-HAM
2010/11/30
Nucleation from the gas phase is an important source of aerosol particles in the Earth's atmosphere, contributing to the number of cloud condensation nuclei, which form cloud droplets. We have impleme...
Aqueous chemistry and its role in secondary organic aerosol (SOA) formation
Aqueous chemistry secondary organic aerosol (SOA) formation
2010/11/30
This paper provides an overview of SOA formation through aqueous chemistry, including atmospheric evidence for this process and a review of radical and non-radical chemistry, using glyoxal as a model ...
The genesis of Typhoon Nuri as observed during the Tropical Cyclone Structure 2008 (TCS-08) field experiment – Part 1: The role of the easterly wave critical layer
Typhoon Nuri the Tropical Cyclone Structure 2008 the easterly wave critical layer
2010/10/21
An observational and real-time model forecast study of the genesis of Typhoon Nuri during the Tropical Cyclone Structure 2008 (TCS-08) field campaign in the western North Pacific sector is presented. ...
Role of dust alkalinity in acid mobilization of iron
dust alkalinity acid mobilization of iron
2010/10/11
Atmospheric processing of mineral aerosols by acid gases (e.g., SO2, HNO3, N2O5, and HCl) may play a key role in the transformation of insoluble iron (Fe in the oxidized or ferric (III) form) to solub...
Role of aldehyde chemistry and NOx concentrations in secondary organic aerosol formation
aldehyde chemistry NOx concentrations secondary organic aerosol formation
2010/8/16
Aldehydes are an important class of products from atmospheric oxidation of hydrocarbons. Isoprene (2-methyl-1,3-butadiene), the most abundantly emitted atmospheric non-methane hydrocarbon, produces a ...
Measured and modeled humidification factors of fresh smoke particles from biomass burning: role of inorganic constituents
humidification factors fresh smoke particles biomass burning inorganic constituents
2010/8/16
During the 2006 FLAME study (Fire Laboratory at Missoula Experiment), laboratory burns of biomass fuels were performed to investigate the physico-chemical, optical, and hygroscopic properties of fresh...
The role of the particle size distribution in assessing aerosol composition effects on simulated droplet activation
the particle size distribution aerosol composition effects simulated droplet activation
2010/8/13
Variations in the chemical composition of atmospheric aerosols alter their hygroscopicity and can lead to changes in the cloud-active fraction of the aerosols, or cloud condensation nuclei (CCN) numbe...
The role of sulphates and organic vapours in growth of newly formed particles in a eucalypt forest
sulphates and organic vapours newly formed particles a eucalypt forest
2010/8/12
The influence of biogenic particle formation on climate is a well recognised phenomenon. To understand the mechanisms underlying the biogenic particle formation, determining the chemical composition o...
AGRICULTURE SECRETARY TOM VILSACK HIGHLIGHTS ROLE OF AGRICULTURE IN CLIMATE CHANGE
AGRICULTURE SECRETARY AGRICULTURE CLIMATE CHANGE
2009/12/15
Secretary Tom Vilsack spoke at "Agriculture and Rural Development Day," a day-long event at the University of Copenhagen with more than 300 policy makers, negotiators, rural development practitioners,...
The role of soil states in medium-range weather predictability
soil states medium-range weather predictability
2009/11/12
Current day operational ensemble weather prediction systems generally rely upon perturbed atmospheric initial states, thereby neglecting the eventual effect on the atmospheric evolution that uncertain...
The role of boundary and initial conditions for dynamical seasonal predictability
role of boundary initial conditions dynamical seasonal predictability
2009/11/12
The importance of initial state and boundary forcing for atmospheric predictability is explored on global to regional spatial scales and on daily to seasonal time scales. A general circulation model i...