Results 91 to 100 of about 105,708 (293)

A New Weighting Scheme in Weighted Markov Model for Predicting the Probability of Drought Episodes

, 2018
Drought is a complex stochastic natural hazard caused by prolonged shortage of rainfall. Several environmental factors are involved in determining drought classes at the specific monitoring station. Therefore, efficient sequence processing techniques are
Ahmad, Ishfaq, Ahmad, Maqsood, Ali, Zulfiqar, Almanjahie, Ibrahim M., Faisal, Muhammad, Hussain, Ijaz, Ismail, Muhammad   +6 more
core   +1 more source

The stratospheric gravity wave field produced by a supercell

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Supercells are a class of long‐lasting thunderstorms with rotating updrafts that often cause severe weather, hail, and tornadoes. This study uses numerical simulations to characterize the stratospheric gravity waves that are caused by these storms.
David S. Nolan, Yi Dai
wiley   +1 more source

Fuzzy postprocessing of seasonal climate forecasts for semiarid river basins

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Meteorological forecasts from AI‐based fuzzy rule‐based system (FRB) are compared to linear scaling (LS) and quantile mapping (QM). Seasonal forecasts from the Copernicus Climate Change Service (C3S) are considered. Results show that the highest skill is achieved for the FRB approach.
Dariana Isamel Avila‐Velasquez, Hector Macian‐Sorribes, Manuel Pulido‐Velazquez   +2 more
wiley   +1 more source

Analysis of changes in daily temperature and precipitation extreme in Jakarta on period of 1986-2014

MATEC Web of Conferences, 2018
Climate change due to an increase in greenhouse gas concentrations has led to changes in extreme climate events. IPCC 2007 already predicted that average global temperatures would reach 0.74⁰ C in the last 100 years (1906-2005).
Khoir Aulia N., Mamlu’atur R., Safril Agus, Fadholi Akhmad   +3 more
doaj   +1 more source

Operational numerical weather prediction with ICON on GPUs (version 2024.10) [PDF]

Geoscientific Model Development
Numerical weather prediction and climate models require continuous adaptation to take advantage of advances in high-performance computing hardware. This paper presents the port of the ICON model to GPUs using OpenACC compiler directives for numerical ...
X. Lapillonne, D. Hupp, F. Gessler, A. Walser, A. Pauling, A. Lauber, B. Cumming, C. Osuna, C. Müller, C. Merker, D. Leuenberger, D. Leutwyler, D. Alexeev, G. Vollenweider, G. Van Parys, J. Jucker, L. Jansing, M. Arpagaus, M. Induni, M. Jacob, M. Kraushaar, M. Jähn, M. Stellio, O. Fuhrer, P. Baumann, P. Steiner, P. Kaufmann, R. Dietlicher, R. Müller, S. Kosukhin, T. C. Schulthess, U. Schättler, V. Cherkas, W. Sawyer   +33 more
doaj   +1 more source

Land data assimilation of satellite‐based surface soil moisture: Impact on atmospheric simulations over the contiguous United States

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Soil Moisture Active Passive soil moisture retrievals are assimilated into a land surface model and the resulting land reanalysis product is used to initialise the land component of coupled land‐atmosphere experiments. We show that the local impact of land data assimilation on the atmosphere is influenced by two factors: the magnitude by which it ...
Zdenko Heyvaert, Michel Bechtold, Wouter Dorigo, Jonas Mortelmans, Daniel Hagan, Joseph Santanello, Gabriëlle De Lannoy   +6 more
wiley   +1 more source

Reliability, Sufficiency, and the Decomposition of Proper Scores

, 2008
Scoring rules are an important tool for evaluating the performance of probabilistic forecasting schemes. In the binary case, scoring rules (which are strictly proper) allow for a decomposition into terms related to the resolution and to the reliability ...
Blattenberger, Breiman, Brier, Bröcker, Bröcker, de Finetti, DeGroot, Epstein, Gneiting, Gneiting, Gneiting, Good, Matheson, Murphy, Murphy, Murphy, Murphy, Murphy, Raftery, Rockafellar, Savage, Toth, Wilks, Winkler   +23 more
core   +2 more sources

Unravelling indoor temperature response to summer heat through long‐term crowdsourced observations in Dutch residences

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study analysed and modelled summertime indoor temperature dynamics in the Netherlands using a unique long‐term crowdsourced dataset from seven residences (spanning 2–27 years). Indoor temperatures were found to rise and cool more slowly than outdoors (mean 260 minute lag), with heatwave signals persisting about five days.
Esther E. M. Peerlings, Gert‐Jan Steeneveld   +1 more
wiley   +1 more source

Classification of Fog Life‐Cycle Phases Using Ground‐Based and Satellite‐Based Observations

Quarterly Journal of the Royal Meteorological Society, EarlyView.
In this study, the life‐cycle phases of radiation fog events—formation, maturity, and dissipation—are automatically classified at a ground station in Southwest Germany based on visibility trends and thresholds. We demonstrate that visibility detects radiation fog phases effectively, while its combination with ceilometer data can detect the life‐cycle ...
Maria Laura Pinilla, Eva Pauli, Johannes Antenor Senn, Jan Cermak   +3 more
wiley   +1 more source

A case study of temperature tendency mechanisms operating over northern Africa during and following midlatitude winter troughs

Quarterly Journal of the Royal Meteorological Society, EarlyView.
An Iberia‐Central Mediterranean trough sequence (7–10 February 2018) delivers anomalous low‐level temperature tendencies attributable to dynamics across most of northern Africa, with warming over northeastern Africa, especially 10–12 February into the eastern Sahel. An ECMWF product attributes the tendencies (see Figure).
Neil Ward, Andreas H. Fink, Richard J. Keane, Douglas J. Parker   +3 more
wiley   +1 more source