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399 Results Found

  • Article
  • Open Access
50 Citations
4,868 Views
19 Pages

25 January 2021

In recent years, wind energy has become a competitively priced source of energy around the world, which has created increasing challenges for system operators. Accurate wind power generation forecasting plays an important role in power systems to imp...

  • Article
  • Open Access
20 Citations
4,173 Views
15 Pages

12 July 2018

Tropospheric delay is a major error source that affects the performance of the Global Navigation Satellite Systems (GNSS) Real Time Kinematic (RTK) positioning especially for the medium/long-range baseline. Although high precision tropospheric delay...

  • Article
  • Open Access
1,443 Views
25 Pages

Assessment and Validation of Small-Scale Tropospheric Delay Estimations Based on NWP Data

  • Jan Erik Håkegård,
  • Mohammed Ouassou,
  • Nadezda Sokolova and
  • Aiden Morrison

12 October 2024

This paper investigates the applicability of the Numerical Weather Prediction (NWP) data for characterizing the gradient of zenith wet delay in horizontal direction observed on short baselines over larger territories. A three-year period of data for...

  • Article
  • Open Access
17 Citations
3,171 Views
17 Pages

3 June 2020

Tropospheric delay is a major error source that affects the initialization and re-initialization speed of the Global Navigation Satellite System’s (GNSS) medium-/long-range baseline in Network Real-Time Kinematic (NRTK) positioning. Fusing the...

  • Article
  • Open Access
3 Citations
1,993 Views
13 Pages

Aeolus Data Validation for an Extreme Precipitation Event in Greece with the COSMO NWP Model

  • Euripides Avgoustoglou,
  • Ioannis Matsangouras,
  • Ioannis Pytharoulis and
  • Panagiotis Nastos

1 November 2023

The study of atmospheric models and climate systems has been hampered by the restricted availability of wind profile measurements. By recording wind profiles in near real time and giving useful information for Numerical Weather Prediction (NWP) model...

  • Article
  • Open Access
3 Citations
1,800 Views
19 Pages

30 January 2024

The numerical weather prediction (NWP) method is one of the popular wind resource forecasting methods, but it has the limitation that it does not consider the influence of local topography. The NWP-CFD downscaling considers topographic features and s...

  • Article
  • Open Access
9 Citations
3,546 Views
18 Pages

18 February 2020

The distribution of tropospheric moisture in the environment is highly associated with storm development. Therefore, it is important to evaluate the uncertainty of moisture fields from numerical weather prediction (NWP) models for better understandin...

  • Proceeding Paper
  • Open Access
1,309 Views
6 Pages

The Impact of Aeolus Wind Profile Measurements on Severe Weather Events: A COSMO NWP Case Study over Thessaly

  • Ioannis Matsangouras,
  • Evripidis Avgoustoglou,
  • Ioannis Pytharoulis and
  • Panagiotis Nastos

The limited availability of wind profile measurements has hindered atmospheric models and climate systems’ understanding. The European Space Agency’s Aeolus mission’s space-based Doppler wind lidar technology could solve this issue...

  • Article
  • Open Access
5 Citations
3,439 Views
19 Pages

2 July 2019

Understanding the details of micro-scale wind fields is important in the development of wind energy. Research has proven that coupling Numerical Weather Prediction (NWP) and Computational Fluid Dynamics (CFD) models is a better approach for micro-sca...

  • Article
  • Open Access
24 Citations
4,608 Views
18 Pages

27 August 2019

Representing mesoscale convective systems (MCSs) and their multi-scale interaction with the large-scale atmospheric dynamics is still a major challenge in state-of-the-art global numerical weather prediction (NWP) models. This results in potentially...

  • Article
  • Open Access
10 Citations
3,765 Views
14 Pages

This study describes a framework that provides qualitative weather information on winter precipitation types using a data-driven approach. The framework incorporates the data retrieved from weather radars and the numerical weather prediction (NWP) mo...

  • Letter
  • Open Access
4 Citations
3,363 Views
14 Pages

27 July 2020

Although atmospheric CO2 is a trace gas, it has seasonal variations and has increased over the last decade. Its seasonal variation and increase have substantial radiative effects on hyperspectral infrared (IR) radiance calculations in both longwave (...

  • Proceeding Paper
  • Open Access
247 Views
5 Pages

The Effect of “Aeolus” Data on the Accumulated Precipitation Associated with a Severe Storm Event over Greece

  • Euripides Avgoustoglou,
  • Ioannis Matsangouras,
  • Ioannis Pytharoulis and
  • Panagiotis Nastos

The limited availability of wind profile measurements has long hindered advancements in atmospheric modeling and our understanding of climate systems. The European Space Agency’s (ESA) “Aeolus” mission encountered this challenge wit...

  • Article
  • Open Access
1 Citations
1,933 Views
18 Pages

30 July 2023

Surface air temperature is a comprehensive function of aerosols in the atmosphere and various weather factors. However, there is no real-time aerosol concentration feedback in most operational numerical weather prediction (NWP) models. This raises a...

  • Article
  • Open Access
11 Citations
4,129 Views
19 Pages

28 April 2021

In this study, the resilience of large cities and their built infrastructure in New Zealand to extreme winds, is investigated by coupling the outputs of a very high-resolution, 333-m resolution, numerical weather prediction (NWP) model with computati...

  • Article
  • Open Access
22 Citations
4,314 Views
21 Pages

25 August 2020

The Ice Cloud Imager (ICI) will be launched on the next generation of EUMETSAT polar-orbiting weather satellites and make passive observations between 183 and 664 GHz which are sensitive to scattering from cloud ice. These observations have the poten...

  • Review
  • Open Access
6 Citations
2,968 Views
24 Pages

A Review of Nutritional Water Productivity (NWP) in Agriculture: Why It Is Promoted and How It Is Assessed?

  • Katrin Drastig,
  • Ranvir Singh,
  • Fiorina-Marie Telesca,
  • Sofia Zanella Carra and
  • Jasper Jordan

14 December 2023

Assessment of nutritional water productivity (NWP) combines a metric of crop or livestock production per unit water consumed and human nutritional value of the food produced. As such, it can rationalize the use of scarce water for a portfolio of crop...

  • Article
  • Open Access
9 Citations
4,911 Views
17 Pages

Towards Precise Positioning and Movement of UAVs for Near-Wall Tasks in GNSS-Denied Environments

  • Félix Orjales,
  • Javier Losada-Pita,
  • Alejandro Paz-Lopez and
  • Álvaro Deibe

21 March 2021

UAVs often perform tasks that require flying close to walls or structures and in environments where a satellite-based location is not possible. Flying close to solid bodies implies a higher risk of collisions, thus requiring an increase in the precis...

  • Article
  • Open Access
12 Citations
5,654 Views
17 Pages

10 March 2018

The National Meteorological Satellite Center/Korean Meteorological Administration (NMSC/KMA) receives data directly from low Earth orbit (LEO) satellites (including NOAA-18,19; MetOp-A,B; and Suomi-NPP), and generates Level 2 products (e.g., temperat...

  • Article
  • Open Access
1 Citations
1,926 Views
27 Pages

19 July 2024

Site-specific weather forecasts are essential for accurate prediction of power demand and are consequently of great interest to energy operators. However, weather forecasts from current numerical weather prediction (NWP) models lack the fine-scale de...

  • Article
  • Open Access
1 Citations
711 Views
14 Pages

Research on Operational Risk for Northwest Passage Cruise Ships Using POLARIS

  • Long Ma,
  • Jiemin Fan,
  • Xiaoguang Mou,
  • Sihan Qian,
  • Jin Xu,
  • Liang Cao,
  • Bo Xu,
  • Boxi Yao,
  • Xiaowen Li and
  • Yabin Li

In the context of global warming, polar tourism is developing rapidly, and the demand for polar cruise travel in the Northwest Passage continues to increase, while sea ice has long been a key factor limiting the development of polar cruise tourism. T...

  • Article
  • Open Access
11 Citations
3,415 Views
22 Pages

Flood Predictability of One-Way and Two-Way WRF Nesting Coupled Hydrometeorological Flow Simulations in a Transboundary Chenab River Basin, Pakistan

  • Ehtesham Ahmed,
  • Naeem Saddique,
  • Firas Al Janabi,
  • Klemens Barfus,
  • Malik Rizwan Asghar,
  • Abid Sarwar and
  • Peter Krebs

12 January 2023

Remote sensing precipitation or precipitation from numerical weather prediction (NWP) is considered to be the best substitute for in situ ground observations for flood simulations in transboundary, data-scarce catchments. This research was aimed to e...

  • Feature Paper
  • Article
  • Open Access
12 Citations
5,659 Views
13 Pages

2 March 2018

This study is motivated by the great importance of Cbs for aviation safety. The study investigates the role of Numerical Weather Prediction (NWP) filtering for the remote sensing of Cumulonimbus Clouds (Cbs) by implementation of about 30 different ex...

  • Article
  • Open Access
7 Citations
4,787 Views
23 Pages

Outlier Events of Solar Forecasts for Regional Power Grid in Japan Using JMA Mesoscale Model

  • Hideaki Ohtake,
  • Fumichika Uno,
  • Takashi Oozeki,
  • Yoshinori Yamada,
  • Hideaki Takenaka and
  • Takashi Y. Nakajima

11 October 2018

To realize the safety control of electric power systems under high penetration of photovoltaic power systems, accurate global horizontal irradiance (GHI) forecasts using numerical weather prediction models (NWP) are becoming increasingly important. T...

  • Article
  • Open Access
16 Citations
3,919 Views
16 Pages

Wind Farm NWP Data Preprocessing Method Based on t-SNE

  • Jiu Gu,
  • Yining Wang,
  • Da Xie and
  • Yu Zhang

23 September 2019

The operation prediction of wind farms will be accompanied by the need for massive data processing, especially the preprocessing of wind farm meteorological data or numerical weather prediction (NWP). Because NWP data are strongly correlated with win...

  • Review
  • Open Access
15 Citations
15,491 Views
19 Pages

Accurate and rapid weather forecasting and climate modeling are universal goals in human development. While Numerical Weather Prediction (NWP) remains the gold standard, it faces challenges like inherent atmospheric uncertainties and computational co...

  • Communication
  • Open Access
3 Citations
1,945 Views
28 Pages

3 September 2024

The impact of tropical cyclones on the operation of bridges and railways are mostly dependent on the forecast wind speed trend (upward, downward or staying steady) at present in Hong Kong. There are requests to forecast the exceedance of wind speed t...

  • Article
  • Open Access
42 Citations
3,584 Views
20 Pages

8 November 2020

Ultra-short-term wind power prediction is of great importance for the integration of renewable energy. It is the foundation of probabilistic prediction and even a slight increase in the prediction accuracy can exert significant improvement for the sa...

  • Article
  • Open Access
1 Citations
2,253 Views
30 Pages

Use of CAMS near Real-Time Aerosols in the HARMONIE-AROME NWP Model

  • Daniel Martín Pérez,
  • Emily Gleeson,
  • Panu Maalampi and
  • Laura Rontu

26 April 2024

Near real-time aerosol fields from the Copernicus Atmospheric Monitoring Services (CAMS), operated by the European Centre for Medium-Range Weather Forecasts (ECMWF), are configured for use in the HARMONIE-AROME Numerical Weather Prediction model. Aer...

  • Article
  • Open Access
4 Citations
3,126 Views
17 Pages

9 April 2022

Granularity of the grid (both horizontally and vertically) is a key consideration when conducting localised Numerical Weather Prediction (NWP) modelling. Generally speaking, an NWP model with a finer grid can explicitly resolve more processes and req...

  • Article
  • Open Access
28 Citations
2,968 Views
17 Pages

A Hybrid Multi-Objective Optimizer-Based SVM Model for Enhancing Numerical Weather Prediction: A Study for the Seoul Metropolitan Area

  • Mohanad A. Deif,
  • Ahmed A. A. Solyman,
  • Mohammed H. Alsharif,
  • Seungwon Jung and
  • Eenjun Hwang

28 December 2021

Temperature forecasting is an area of ongoing research because of its importance in all life aspects. However, because a variety of climate factors controls the temperature, it is a never-ending challenge. The numerical weather prediction (NWP) model...

  • Article
  • Open Access
3 Citations
3,040 Views
18 Pages

25 March 2025

Heavy rainfall events are the main cause of flooding, especially in regions like Kerala, India. Kerala is vulnerable to extreme weather due to its geographical location in the Western Ghats. Accurate forecasting of rainfall events is essential for mi...

  • Article
  • Open Access
14 Citations
5,595 Views
35 Pages

20 January 2022

Regional climate models (RCMs) are crucial for climate studies and may be an alternative source of meteorological data in data-scarce regions. However, the effectiveness of the numerical weather prediction (NWP) models applied in RCMs is hampered by...

  • Proceeding Paper
  • Open Access
2 Citations
1,921 Views
7 Pages

Lightning Potential Forecast Evaluation and Its Correlation with Thermodynamic Indices

  • Flora Gofa,
  • Dimitra Boucouvala,
  • Ioannis Samos and
  • Petroula Louka

Lightning potential index (LPI) is a measure of the potential for charge generation and separation that leads to lightning flashes in convective thunderstorms and can be forecasted from NWP models. While the connection between cloud microphysics and...

  • Article
  • Open Access
4 Citations
4,590 Views
20 Pages

12 January 2023

The invaluable meteorological observations for a late autumn tropical cyclone that came very close to Hong Kong, namely, Nalgae in November 2022, are documented in this article. In particular, the dropsonde data for two consecutive days for this late...

  • Article
  • Open Access
3 Citations
2,926 Views
25 Pages

Kinematic ZTD Estimation from Train-Borne Single-Frequency GNSS: Validation and Assimilation

  • Matthias Aichinger-Rosenberger,
  • Robert Weber and
  • Natalia Hanna

22 September 2021

Water vapour is one of the most important parameters utilized for the description of state and evolution of the Earth’s atmosphere. It is the most effective greenhouse gas and shows high variability, both in space and time. Thus, detailed knowledge o...

  • Article
  • Open Access
330 Views
20 Pages

14 October 2025

Precise wind power forecasting has several benefits, such as optimized peak regulation in power systems, enhanced safety analysis, and improved energy efficiency. Considering the substantial influence of meteorological data, such as wind speed and te...

  • Article
  • Open Access
4 Citations
2,904 Views
20 Pages

Impact of the Microphysics in HARMONIE-AROME on Fog

  • Sebastián Contreras Osorio,
  • Daniel Martín Pérez,
  • Karl-Ivar Ivarsson,
  • Kristian Pagh Nielsen,
  • Wim C. de Rooy,
  • Emily Gleeson and
  • Ewa McAufield

19 December 2022

This study concerns the impact of microphysics on the HARMONIE-AROME NWP model. In particular, the representation of cloud droplets in the single-moment bulk microphysics scheme is examined in relation to fog forecasting. We focus on the shape parame...

  • Article
  • Open Access
1 Citations
1,749 Views
15 Pages

21 January 2023

This paper contains results from a study where numerical weather product (NWP) data provided by MET Norway were used to estimate the differential zenith tropospheric delay (dZTD) for an area including Scandinavia, Finland and the Baltic countries. Th...

  • Article
  • Open Access
3 Citations
2,528 Views
16 Pages

12 December 2022

The multi-model ensemble (MME) forecast for meteorological elements has been proved many times to be more skillful than the single model. It improves the forecast quality by integrating multiple sets of numerical forecast results with different spati...

  • Article
  • Open Access
19 Citations
2,735 Views
20 Pages

15 April 2023

FY-3E WindRAD (Fengyun-3E Wind Radar) is a dual-frequency rotating fan-beam scatterometer. Its data characteristics, NOC (NWP Ocean Calibration), and wind retrieval performance are investigated in this paper. The diversity of the radar view geometry...

  • Article
  • Open Access
3 Citations
3,488 Views
24 Pages

Calibration of High-Impact Short-Range Quantitative Precipitation Forecast through Frequency-Matching Techniques

  • Man-Lok Chong,
  • Yat-Chun Wong,
  • Wang-Chun Woo,
  • Amos P. K. Tai and
  • Wai-Kin Wong

12 February 2021

Short-lived and intense rainfall is common in Hong Kong during the wet season and often causes disruption to daily lives. As global numerical weather prediction (NWP) models are progressively improved, representation of sub-synoptic or mesoscale syst...

  • Article
  • Open Access
17 Citations
2,959 Views
21 Pages

29 July 2022

In order to study and forecast extreme weather, a comprehensive and systematic analysis of the spatial and temporal relationship between Precipitable Water Vapor (PWV), predicted by Numerical Weather Predication (NWP) data, and precipitation, is nece...

  • Article
  • Open Access
23 Citations
5,332 Views
17 Pages

Solar Forecasting in a Challenging Insular Context

  • Philippe Lauret,
  • Elke Lorenz and
  • Mathieu David

29 January 2016

This paper aims at assessing the accuracy of different solar forecasting methods in the case of an insular context. Two sites of La Réunion Island, Le Tampon and Saint-Pierre, are chosen to do the benchmarking exercise. Réunion Island is a tropical i...

  • Article
  • Open Access
2 Citations
2,231 Views
20 Pages

A Coherent Approach to Evaluating Precipitation Forecasts over Complex Terrain

  • Flora Gofa,
  • Helena Flocas,
  • Petroula Louka and
  • Ioannis Samos

22 July 2022

Precipitation forecasts provided by high-resolution NWP models have a degree of realism that is very appealing to most users of meteorological data. However, it is a challenge to demonstrate whether or not such forecasts contain more skillful informa...

  • Article
  • Open Access
7 Citations
3,525 Views
21 Pages

8 January 2021

Parametrization of radiation transfer through clouds is an important factor in the ability of Numerical Weather Prediction models to correctly describe the weather evolution. Here we present a practical parameterization of both liquid droplets and ic...

  • Article
  • Open Access
2,316 Views
14 Pages

5 December 2022

Radiance observations are typically affected by biases that come mainly from instrument error (scanning or calibration) and inaccuracies of the radiative transfer model. These biases need to be removed for successful assimilation, so a bias correctio...

  • Review
  • Open Access
5 Citations
3,174 Views
124 Pages

22 August 2023

Here we present the numerical methods, applications, and comparisons with observations and previous studies. It includes numerical analyses of shallow water equations, Sun’s scheme, and nonlinear model simulations of a dam break, solitary Rossb...

  • Article
  • Open Access
34 Citations
6,613 Views
23 Pages

4 December 2017

The power generated by wind generators is usually associated with uncertainties, due to the intermittency of wind speed and other weather variables. This creates a big challenge for transmission system operators (TSOs) and distribution system operato...

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