Sergi González-Herrero

Sergi González-Herrero
WSL Institute for Snow and Avalanche Research SLF · Snow and Atmosphere

PhD in Physics

About

41
Publications
5,860
Reads
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244
Citations
Citations since 2017
37 Research Items
242 Citations
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Introduction
I’m an atmospheric scientist at the WSL Institute for Snow and Avalanche Research (SLF). I finished my PhD research at the University of Barcelona about mesoscalar and microphysical precipitation processes at mountain areas. My research interests are meteorology and climatology of mountain and polar regions including snow and precipitation processes and measurements with remote-sensing instruments, climatology and multidisciplinary studies.
Additional affiliations
May 2010 - August 2022
Agencia Estatal de Meteorología, Barcelona
Position
  • Weather Forecaster
Education
October 2014 - July 2019
University of Barcelona
Field of study
  • Physics (Meteorology)
September 2008 - February 2010
University of Barcelona
Field of study
  • Meteorology
September 2004 - June 2008
Autonomous University of Barcelona
Field of study
  • Environmental Sciences

Publications

Publications (41)
Article
Full-text available
The upward evolution of temperatures in the Antarctic Peninsula has weakened and even reversed in the last two decades. Due to the long-term variability in the region it is not easy to assess whether recent cooling trends are consistent with the internal variability or not. For this reason, this paper assesses the robustness of the trends by analys...
Article
This article characterizes the mesoscale surface air temperature (SAT) gradients around the Dome F on the Antarctic Plateau combining ERA5 reanalysis outputs and in-situ weather observations. For this we took advantage of a mobile automatic weather station (M-AWS) that allowed us to record meteorological observations in interesting areas not covere...
Article
Full-text available
Precipitations processes at windward and leeward sides of the mountains have been object of study for many decades. Instead, inner mountain valleys, where usually most mountain population lives, have received considerably less attention. This article examines precipitation processes during a winter field campaign in an inner valley of the Pyrenees...
Article
Full-text available
February 2020 was anomalously warm in the Antarctic Peninsula region and registered one of the most intense heatwaves ever recorded in Western Antarctica. The event featured unprecedented regional mean temperature anomalies (+4.5 °C) over the Antarctic Peninsula between 6 and 11 February 2020 and the highest local temperature of the continental Ant...
Article
Full-text available
Monitoring extreme precipitation records (EPRs), that is, the most extreme precipitation events, is a challenge in Antarctica due to the reduced number of stations available in the continent and the limitations of the instrumentation for measuring solid precipitation. Still, extreme precipitation events may contribute substantially to the variabili...
Article
Mid-latitude mountain snowpacks are highly vulnerable to climate warming. Past and future hydroclimate changes require a thorougout knowledge of snow ablation physical processes and the associate climate drivers. In this work we provide the first spatio-temporal characteritzation of the energy available for snow ablation (Qm) in the Pyrenees for th...
Article
Full-text available
Poikilohydric autotrophs are the main colonizers of the permanent ice-free areas in the Antarctic tundra biome. Global climate warming and the small human footprint in this ecosystem make it especially vulnerable to abrupt changes. Elucidating the effects of climate change on the Antarctic ecosystem is challenging because it mainly comprises poikil...
Article
Full-text available
The polar regions provide valuable insights into the functioning of the Earth’s regulating systems. Conducting field research in such harsh and remote environments requires strong international cooperation, extended planning horizons, sizable budgets and long-term investment. Consequently, polar research is particularly vulnerable to societal and e...
Article
Full-text available
The detection and characterisation of the radar Bright Band (BB) are essential for many applications of weather radar quantitative precipitation estimates, such as heavy rainfall surveillance, hydrological modelling or numerical weather prediction data assimilation. This study presents a new technique to detect the radar BB levels (top, peak and bo...
Article
Full-text available
Nunataks are permanent ice-free rocky peaks that project above ice caps in polar regions, thus being exposed to extreme climatic conditions throughout the year. They undergo extremely low temperatures and scarcity of liquid water in winter, while receiving high incident and reflected (albedo) UVA-B radiation in summer. Here, we investigate the geom...
Article
Antarctic ecosystem services are rich and diverse and include global climate modulation, biodiversity and habitat protection, cultural heritage, scientific knowledge, education and recreation as well as the extraction of marine living resources. However, environmental protection studies have rarely examined the full complement of Antarctic values r...
Article
In a warmer climate, significant variations in the snow regime are expected. Thus, it is crucial to better understand present‐day snow cover regime, its duration and thickness, in order to anticipate future changes. This work presents the first characterization of snow patterns in the Catalan Pyrenees based on eleven snow stations located in high e...
Article
The atmosphere plays an important role in the dispersal of microorganisms, as well as in the connectivity of most of the planet's ecosystems. In recent decades, interest in microbial diversity and dispersion in the atmosphere has increased due to its importance in various fields. However, there are few studies on the abundance of airborne microorga...
Article
Full-text available
This paper describes a methodology for processing spectral raw data from Micro Rain Radar (MRR), a K-band vertically pointing Doppler radar designed to observe precipitation profiles. The objective is to provide a set of radar integral parameters and derived variables, including a precipitation type classification. The methodology first includes an...
Article
Full-text available
A number of studies have reported in the last decades the presence of plastics in the Southern Ocean, which are liable to reach the coast and accumulate on the Antarctic Continent. Despite this, there are few data on the amount of plastic pollution on Antarctic beaches below 60°S. Here we provide valuable information about the presence of plastic d...
Article
Full-text available
Kilometric-resolution Ensemble Prediction Systems (EPSs) will be the new state-of-the-art forecasting tools for short-range prediction in the following decade. Their value will be even greater in Antarctica due to the increasingly demanding weather forecasts for logistic services. During the 2018-2019 austral summer (1 December-31 March), coincidin...
Article
The Blue Marble shows cloud structures associated with the different weather systems. The picture displays features ranging from tropical convection to polar clouds including both tropical and extratropical cyclones, showing the atmospheric richness of our world.
Article
In this paper, we analyze meteorological conditions, thundercloud structure, lightning activity and characteristics of the flashes that strike two towers separated by 1.3 km on Tosa d'Alp (2537 m asl) for two days (March 24 and 31) of the Cerdanya-2017 field campaign. Remote sensing products (cloud top temperature, lightning flash location, volumet...
Article
The 15 January 2017 a strong northerly synoptic flow lead to the generation of mountain waves and heavy snowfall over the eastern Pyrenees, particularly over the Cerdanya valley near the border between France, Spain and Andorra. Measurements from several instruments deployed during the Cerdanya-2017 field campaign and satellite imagery revealed the...
Article
The Antarctic Plateau is one of the land areas with the largest gaps in surface weather observations on Earth, gaps that are usually filled with simulations provided by climate models. However, these simulated values must be ground-validated, which is particularly difficult and costly in remote polar regions. We designed and developed a Mobile Auto...
Article
Full-text available
Recent studies reported that precipitation and mountain waves induced low tropospheric level circulations may be decoupled or masked by greater spatial scale variability despite generally there is a connection between microphysical processes of precipitation and mountain driven air flows. In this paper we analyse two periods of a winter storm in th...
Article
Full-text available
The Antarctic Peninsula region has experienced a recent cooling for about 15 years since the beginning of the 21st century. In Livingston Island, this cooling has been of 0.8°C over the 12-yr period 2004-2016, and of 1.0°C for the summer average temperatures over the same period. In this paper, we analyse whether this observed cooling has implied a...
Article
Full-text available
In this paper, we illustrate a new, simple and complementary ground-based methodology to retrieve the vertically resolved atmospheric precipitation intensity through a synergy between measurements from the National Aeronautics and Space Administration (NASA) Micropulse Lidar network (MPLNET), an analytical model solution and ground-based disdromete...
Article
The Tramontane-Cierzo wind system is a recurrent feature of the northwestern Mediterranean basin in front of the Catalan coast (northeast Spain). Associated with this feature, northeast wind surges occasionally affect the coast and become a weather hazard for low-level aircraft operations, affecting for example the Barcelona international airport....
Preprint
Full-text available
In this paper we illustrate a new, simple and complementary ground-based methodology to retrieve the vertically resolved atmospheric precipitation intensity through a synergy between measurements from the National Aeronautics and Space Administration (NASA) Micropulse Lidar network (MPLNET), an analytical model solution and ground-based disdrometer...
Conference Paper
Full-text available
The study describes an analysis of point rainfall amounts obtained from raingauge measurements in Spain covering periods from 10 minutes to 2 years, their temporal scaling and a discussion of predominant atmospheric processes involved. A large database exceeding 11,000 stations, some of which with more than 200 years records, was used and results a...
Article
Full-text available
Using clustering analysis for the SLP field of the ERA Interim reanalysis between 1979 and 2016, five synoptic pressure patterns have been obtained for Drake area and Antarctic Peninsula (AP) region (45°S 75°S 20°W 120°W) and the resulting daily series has been made available to the scientific community. The five patterns have been named according...
Article
Full-text available
This paper presents a regional and seasonal study of extreme point rainfall scaling from 10 min to 2 years. To do this, the highest point-based rainfall list based on these temporal periods was calculated from the Spanish Meteorological Service (AEMET) precipitation databases with more than 11 000 rain-gauge stations, with the longest series rangin...
Conference Paper
La Cerdanya is one of the largest valleys in the Pyrenees, singularly oriented ENE to WSW, 35 km long and 9 km wide. The bottom of the valley is about 1000 m above sea level and it is surrounded by mountain ranges rising to above 2900 m. This configuration makes the Cerdanya basin prone to the formation of Cold Air Pools (CAP). Also the alignment o...
Article
Full-text available
During the afternoon of 12 June 2012 a meteorological phenomenon, characterized by a sudden increase in wind speed and a sharp change in its direction, occurred in the city of Barcelona and surrounding areas. The strong gusts of wind that blew on the Barcelona coastline raised a significant amount of sand from the beaches in the city, which caused...

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Project (1)
Project
The main goal is to establish the dispersal capability of microorganisms in the Antarctic Continent and thus explain the biogeography of Antarctic organisms in a climate change scenario, in which the deglaciation processes are triggering that substrates ice covered for several thousands of years remain exposed to the new-comers. We will develop new statistical techniques for big data analysis and modelization of the relationships between wind trajectories and massive metagenomic sequencing.