Marc Schneebeli Zeugin

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Related publications (18)

Orographic effects on snow deposition patterns in mountainous terrain

Michael Lehning, Alexis Berne, Marc Schneebeli Zeugin, Danny Eddy Scipion Castillo

Orographic lifting of air masses and other topographically modified flows induce cloud and precipitation formation at larger scales and preferential deposition of precipitation at smaller scales. In this study, we examine orographic effects on small-scale ...

Wiley-Blackwell2014

Polarimetric X-band weather radar measurements in the tropics: radome and rain attenuation correction

Marc Schneebeli Zeugin

A polarimetric X-band radar has been deployed during one month (April 2011) for a field campaign in Fortaleza, Brazil, together with three additional laser disdrometers. The disdrometers are capable of measuring the raindrop size distributions (DSDs), henc ...

Copernicus Gesellschaft Mbh2012

An Extended Kalman Filter Framework for Polarimetric X-Band Weather Radar Data Processing

Alexis Berne, Marc Schneebeli Zeugin

The different quantities measured by dual-polarization radar systems are closely linked to each other. An extended Kalman filter framework is proposed in order to make use of constraints on individual radar observables that are induced by these relations. ...

American Meteorological Society2012

A sun-tracking method to improve the pointing accuracy of weather radar

Alexis Berne, Marc Schneebeli Zeugin, Xavier Muth

Accurate positioning of data collected by a weather radar is of primary importance for their appropriate georeferencing, which in turn makes it possible to combine those with additional sources of information (topography, land cover maps, meteorological si ...

2012

High-resolution vertical profiles of polarimetric X-band weather radar observables during snowfall in the Swiss Alps

Michael Lehning, Alexis Berne, Marc Schneebeli Zeugin

An X-band polarimetric radar was deployed in the eastern Swiss Alps at an altitude of 2133 m. Radar measurements were complemented with several weather stations deployed in an altitude range from 1500 to 3100 m as well as with a fixed GPS ground station th ...

Amer Meteorological Soc2012

Tomography-based determination of permeability and Dupuit-Forchheimer coefficient of characteristic snow samples

Sophia Haussener, Marc Schneebeli Zeugin, Aldo Steinfeld, Émilie Zermatten

A tomography-based methodology for the mass transport characterization of snow is presented. Five samples, characteristic for a wide range of seasonal snow, are considered. Their three-dimensional (3-D) geometrical representations are obtained by micro-com ...

International Glaciological Society2011

Relating the X-band Opacity of a Tropical Tree Canopy to Sapflow, Rain Interception and Dew Formation

Marc Schneebeli Zeugin

During summer and autumn 2007, a 11 GHz microwave radiometer was deployed in an experimental tree plantation in Sardinilla, Panama. The opacity of the tree canopy was derived from incoming brightness temperatures received on the ground. A collocated eddy-c ...

2011

A radiative transfer model for an idealized and non-scattering atmosphere and its application for ground-based remote sensing of the troposphere

Marc Schneebeli Zeugin

Inversion of tropospheric profiles from ground-based microwavemeasurements requires a simple and accurate model for calculating the brightness temperatures as received by the radiometer. In the first part, an analytic solution of the radiative transfer equ ...

Elsevier2011

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A radiative transfer model for an idealized and non-scattering atmosphere and its application for ground-based remote sensing of the troposphere

Marc Schneebeli Zeugin

Elsevier2011