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Overview of the Greater Lyon weather radar advances from 90's to 2008
Overview Greater Lyon weather radar advances
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2010/9/10
The local weather radar of Lyon, part of the Aramis network of Meteo-France, is currently located 40 km from the urban community. The measurement quality of this tool is subjected to constant improvem...
Dual-polarization C-band weather radar algorithms for rain rate estimation and hydrometeor classification in an alpine region
Dual-polarization C-band weather rain rate
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2010/2/3
Dual polarization is becoming the standard for new weather radar systems. In contrast to conventional weather radars, where the reflectivity is measured in one polarization plane only, a dual polariza...
Towards a climatology of sensitivities of Mediterranean high impact weather − first approach
Mediterranean weather
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2010/1/27
During recent years, great interest has grown within the operational weather community on the adaptable component of observational networks. Decisions regarding where to deploy new observations of spe...
Rainfall estimation and ground clutter rejection with dual polarization weather radar
Rainfall estimation ground clutter rejection
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2010/1/27
Conventional radars, used for atmospheric remote sensing, usually operate at a single polarization and frequency to estimate storm parameters such as rainfallrate and water content.
Hydrometeor classification from dual-polarized weather radar: extending fuzzy logic from S-band to C-band data
Hydrometeor classification dual-polarized weather
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2010/1/27
A model-based fuzzy classification method for C-band polarimetric radar data, named Fuzzy Radar Algorithm for Hydrometeor Classification at C-band (FRAHCC), is presented. Membership functions are desi...
Dealing with uncertainty:an analysis of the severe weather events over Italy in 2006
uncertainty analysis severe weather events Italy 2006
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2009/12/10
Forecast verification is a long-standing issue of the whole meteorologists' community. A common definition of a truly satisfying prediction skill has not been achieved so far. Even the definition of "...
Verification of operational weather forecasts from the POSEIDON system across the Eastern Mediterranean
operational weather forecasts POSEIDON system Eastern Mediterranean
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2009/12/8
The POSEIDON weather forecasting system became operational at the Hellenic Centre for Marine Research (HCMR) in October 1999. The system with its nesting capability provided 72-h forecasts in two diff...
Dealing with uncertainty: an analysis of the severe weather events over Italy in 2006
the severe weather events Italy 2006
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2009/12/31
Forecast verification is a long-standing issue of the whole meteorologists' community. A common definition of a truly satisfying prediction skill has not been achieved so far. Even the definition of "...
The Andes climate and weather
Andes climate weather
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2010/1/28
This paper documents the main features of the weather, climate and climate variability over Andes cordillera in South America on the basis of instrumental observations. We first provide a basic physic...
Innovative Insurance Aims to Buffer Poor from Climate Risks--New Report Details Policies Based on Weather（图）
Innovative Insurance Climate Risks New Report Details Policies Weather
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2009/12/10
In poorer areas of the world, farmers, herders, fishermen and others whose livelihoods are closely linked to their environment rarely have backup in the form of insurance. Now, an innovative type of i...
Probabilistic forecasting of shallow, rainfall-triggered landslides using real-time numerical weather predictions
Probabilistic forecasting shallow, rainfall-triggered landslides real-time numerical weather predictions
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2009/12/30
Global weather forecasts from the United Kingdom Met Office (MO) Numerical Weather Prediction model (NWP) are coupled with a regional data assimilating NWP model (New Zealand Limited Area Model, NZLAM...
High impact weather and cyclones simultaneity in Catalonia
High impact weather and cyclones Catalonia
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2010/1/27
The Western Mediterranean in general and Catalonia in particular are usually affected by high impact weather (HIW) events, mainly heavy rain (HR) and strong wind (SW). The improvement in the understan...
Towards a systematic climatology of sensitivities of Mediterranean high impact weather:a contribution based on intense cyclones
systematic climatology sensitivities Mediterranean high impact weather intense cyclones
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2009/12/30
One of the multiple approaches currently explored to mitigate the effects of hydro-meteorological hazardous events aims at improving the numerical weather forecasts. Under an ever increasing societal ...
Modelling of weather radar echoes from anomalous propagation using a hybrid parabolic equation method and NWP model data
weather radar echoes anomalous propagation hybrid parabolic equation method NWP model data
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2009/12/30
Contamination of weather radar echoes by anomalous propagation (anaprop) mechanisms remains a serious issue in quality control of radar precipitation estimates. Although significant progress has been ...
Statistical and neural classifiers in estimating rain rate from weather radar measurements
Statistical and neural classifiers rain rate weather radar measurements
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2010/1/26
Weather radars are used to measure the electromagnetic radiation backscattered by cloud raindrops. Clouds that backscatter more electromagnetic radiation consist of larger droplets of rain and therefo...