Results 11 to 20 of about 36,400 (294)

Evaluation of a sub-kilometre NWP system in an Arctic fjord-valley system in winter

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2020
Terrain challenges the prediction of near-surface atmospheric conditions, even in kilometre-scale numerical weather prediction (NWP) models. In this study, the ALADIN-HIRLAM NWP system with 0.5 km horizontal grid spacing and an increased number of ...
Teresa Valkonen   +8 more
doaj   +1 more source

Implementation of a simple thermodynamic sea ice scheme, SICE version 1.0-38h1, within the ALADIN–HIRLAM numerical weather prediction system version 38h1 [PDF]

open access: yesGeoscientific Model Development, 2018
Sea ice is an important factor affecting weather regimes, especially in polar regions. A lack of its representation in numerical weather prediction (NWP) systems leads to large errors.
Y. Batrak, E. Kourzeneva, M. Homleid
doaj   +1 more source

Analysis of raindrop size distribution from the double moment cloud microphysics scheme for monsoon over a tropical station [PDF]

open access: yesAtmospheric Chemistry and Physics
Accurate precipitation forecasting hinges on the representation of microphysical processes within numerical models. A key approach to understanding these processes is through the analysis of hydrometeor drop size distribution (DSD).
K. S. Apsara   +8 more
doaj   +1 more source

The Weather Forecast [PDF]

open access: yesEstudios Irlandeses, 2016
It starts in October, the merciless grey morass that gets worse in November and sucks you down into a boghole of misery. It's deep, and oozing, nearly as deep as the silence of a middle aged man in a McGahern novel. Rain. Imagine what all that dreck and drear does to the psyche. It's like the inside of The Poor Mouth and The Hard Life in there.
openaire   +3 more sources

Verification of pre-monsoon temperature forecasts over India during 2016 with a focus on heatwave prediction [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2017
The operational medium-range weather forecasting based on numerical weather prediction (NWP) models are complemented by the forecast products based on ensemble prediction systems (EPSs).
H. Singh   +3 more
doaj   +1 more source

On the warm bias in atmospheric reanalyses induced by the missing snow over Arctic sea-ice

open access: yesNature Communications, 2019
Contemporary atmospheric reanalysis and forecast systems often neglect the snow layer on top of the sea ice. This can result in a 5 to 10 °C warm bias of the sea-ice surface temperature and thus, in a misrepresentation of the surface energy budget.
Yurii Batrak, Malte Müller
doaj   +1 more source

The Impact of Assimilating Satellite Radiance Observations in the Copernicus European Regional Reanalysis (CERRA)

open access: yesRemote Sensing, 2021
The assimilation of microwave and infrared (IR) radiance satellite observations within numerical weather prediction (NWP) models have been an important component in the effort of improving the accuracy of analysis and forecast.
Zheng Qi Wang, Roger Randriamampianina
doaj   +1 more source

Validation metrics for ice edge position forecasts [PDF]

open access: yesOcean Science, 2019
The ice edge is a simple quantity in the form of a line that can be derived from a spatially varying sea ice concentration field. Due to its long history and relevance for operations in the Arctic, the position of the ice edge should be an essential ...
A. Melsom, C. Palerme, M. Müller
doaj   +1 more source

Rainfall characteristics of north west alluvial plain zone of Bihar

open access: yesJournal of Agrometeorology, 2009
Rainfall data for the period 1960-2005 is used to analyze the probability of occurrence of deficit /normal / excess rainfall. The mean annual rainfall is 1200 mm with 28 percent variability; with standard deviation of 336 mm.
P. K. SINGH   +3 more
doaj   +1 more source

Improvements in tropical cyclone forecasting through ensemble prediction system at NCMRWF in India

open access: yesTropical Cyclone Research and Review, 2020
This paper deals with the comparison of cyclone forecasts from the two versions of the operational global ensemble prediction system (EPS) at the National Centre for Medium Range Weather Forecasting (NEPS).
Anumeha Dube   +3 more
doaj   +1 more source

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