Results 31 to 40 of about 258,700 (234)

Arctic Atmospheric Ducting Characteristics and Their Connections with Arctic Oscillation and Sea Ice

open access: yesAtmosphere, 2022
Atmospheric ducting is an anomalous atmospheric structure that affects electromagnetic wave propagation. In the context of global warming, the navigation capacity of the Arctic is increased, and the atmospheric duct can affect communication and ...
Ting Qin   +6 more
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

Using the Firefly optimization method to weight an ensemble of rainfall forecasts from the Brazilian developments on the Regional Atmospheric Modeling System (BRAMS) [PDF]

open access: yesAdvances in Geosciences, 2013
In this paper we consider an optimization problem applying the metaheuristic Firefly algorithm (FY) to weight an ensemble of rainfall forecasts from daily precipitation simulations with the Brazilian developments on the Regional Atmospheric Modeling ...
A. F. dos Santos   +6 more
doaj   +1 more source

The Brazilian Earth System Model ocean–atmosphere (BESM-OA) version 2.5: evaluation of its CMIP5 historical simulation [PDF]

open access: yesGeoscientific Model Development, 2019
The performance of the coupled ocean–atmosphere component of the Brazilian Earth System Model version 2.5 (BESM-OA2.5) was evaluated in simulating the historical period 1850–2005.
S. F. Veiga   +9 more
doaj   +1 more source

Flare forecasting at the Met Office Space Weather Operations Centre [PDF]

open access: yesSpace Weather, 15, 577-588 (2017), 2017
The Met Office Space Weather Operations Centre produces 24/7/365 space weather guidance, alerts, and forecasts to a wide range of government and commercial end users across the United Kingdom. Solar flare forecasts are one of its products, which are issued multiple times a day in two forms; forecasts for each active region on the solar disk over the ...
arxiv   +1 more source

Implementation of an Adaptive Bias‐Aware Extended Kalman Filter for Sea‐Ice Data Assimilation in the HARMONIE‐AROME Numerical Weather Prediction System

open access: yesJournal of Advances in Modeling Earth Systems, 2021
Sea ice surface temperature is an important variable for short‐range numerical weather prediction systems operating in the Arctic. However, when provided by numerical sea ice models, this variable is seldomly constrained by the observations, thus ...
Yurii Batrak
doaj   +1 more source

FengWu-4DVar: Coupling the Data-driven Weather Forecasting Model with 4D Variational Assimilation [PDF]

open access: yesarXiv, 2023
Weather forecasting is a crucial yet highly challenging task. With the maturity of Artificial Intelligence (AI), the emergence of data-driven weather forecasting models has opened up a new paradigm for the development of weather forecasting systems.
arxiv  

Long-Short Term Memory for an Effective Short-Term Weather Forecasting Model Using Surface Weather Data [PDF]

open access: yes, 2019
Part 7: Deep Learning - Convolutional ANNInternational audienceNumerical Weather Prediction (NWP) requires considerable computer power to solve complex mathematical equations to obtain a forecast based on current weather conditions.
A Gulli   +7 more
core   +2 more sources

Weather Forecasts in England [PDF]

open access: yesNature, 1914
MR. MALLOCK'S position in the scientific world is one of distinction and his letters on the subject or weather forecasts in England, which appeared in NATURE of February 26 and June 4, can, accordingly, scarcely fail to be regarded by many who are unfamiliar with the circumstances as reflecting injuriously upon the department of the public service ...
openaire   +6 more sources

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