News and Events

13.07.2022

Call for Papers! Join the 10th EARSeL workshop on Land Ice and Snow

The 10th Workshop on Remote Sensing of Land Ice and Snow of the European Association of Remote Sensing Laboratories (EARSeL) will be held at the Institute of Geography, University of Bern, Switzerland, from 06 - 08 February 2023.

Further information are available at:


https://www.earsel.org/SIG/Snow-Ice/workshop/call.php

The theme of the workshop is: Remote Sensing of the Cryosphere - methods and applications from regional to global scale

 

This workshop will focus on the latest developments in remote sensing of land ice and snow. Presentations are encouraged on all fields of research and applications with the focus on snow and ice as proxy for a changing cryosphere, methods for retrieving cryospheric parameters from various types of remote sensing data, theoretical basis of inversion methods and their application, state of the art of retrieval algorithms including deep learning, data assimilation of remote sensing data and in situ observations in process models, and current and planned sensors for snow and ice. Half of a day will be dedicated to the activities from ESA

(CCI+) and EUMETSAT.

Papers will be presented orally and as posters. Contributions must comply with one of the workshop topics specified below. Please indicate under which session topic your contribution shall be presented.

 

Preliminary session topics

 

  * Glaciers and Ice Caps

  * Snow cover (regional to global scale)

  * Snow and permafrost

  * Snow hydrology

  * Albedo of the cryosphere

  * Cryosphere and climate

  * Cryospheric modelling and data assimilation

  * Airborne and ground-based observation methods

  * New technologies (sensors/methods)

  * ESA CCI+ snow

  * EUMETSAT operational services

 

We are looking forward to welcome you in Bern in February 2023!

23.05.2022

Open Position

Postdoctoral Position (80%; 30 months) in remote sensing of snow

The Remote Sensing Research Group (RSGB) at the Institute of Geography, University of
Bern, Switzerland has an opening of a PostDoc position on remote sensing of snow extent
(SE). This position is part of a project funded by the European Space Agency (ESA) in the
frame of the Climate Change Initiative (CCI) program. The successful candidate will contribute
to the ESA CCI+ snow project starting 1.July 2022. The goal of the project is to
implement/develop a snow extent time series (1978 – 2023) at global and continental scale
retrieved from (Advanced) Very High Resolution Radiometer (AVHRR and VHRR) data. The
main focus of the research position will be on algorithm development, (pre-) processing of
AVHRR GAC and LAC data, and development of uncertainty measures. The researcher
should also contribute to the project reports required by ESA. In addition, a close collaboration
with the team members of the international CCI+ snow consortium and RSGB scientists is
expected. The PostDoc position of the ESA CCI+ project is funded for a duration of 30 months.

 

Your profile:
- PhD in remote sensing with focus on operational systems
- Experience in processing of AVHRR data
- Excellent skills in programming (Python) and statistical data analysis
- Good knowledge in machine learning (ML) and neuronal networks
- Experience in Linux systems and handling of big data
- Excellent knowledge in English and good writing skills
- Relevant peer-reviewed publications


Your tasks:
- Algorithm development for the retrieval of snow extent (physical based and ML)
- Data processing (with support from our ITC expert and an external CCI+ team)
- Data analysis, error propagation, and uncertainty assessment of the snow extent
product
- Presentation and publication of results at project meetings, international conferences
and for peer-reviewed publications
- Contribution to ESA reporting
- Supervision of master students within this project

 


Application: Applications should include (i) CV, (ii) letter of motivation and (iii) two contacts
for reference.
Please, send your application in ONE pdf to stefan.wunderle@giub.unibe.ch .

 

 

 

08.07.2021

Gender equality in Remote Sensing and GIS - Participation of Helga Weber at the AGIT2021 Youth Forum

How to balance gender equality in Remote Sensing and GIS? The session ‚Inspiring Girls Expedition‘ at the AGIT2021 Youth Forum (Wednesday, 07.07., 11 am) addressed the importance of female scientist in the domain of Digital Earth Technologies. Digital Earth Technologies can support the global defined sustainable development goal (SDG): Gender Equality, with a focus on empowering women and girls in Science. The session highlighted the engagement of the Central Asian Inspiring Girls Expedition (‚Adventure of Science: Women and glacier in Central Asia’) for gender equality in Remote Sensing and GIS. The tuition-free programm empowers young women to lead and succeed through science, art, and wilderness exploration. Due to the COVID restrictions, the replacement Adventure of Science at Home Programm further enhanced and forstered the girls and young women’s curiosities in Digital Earth Technologies to strengthen their interests and favour gender equality in this field. Speakers: Helga Weber and Perizat Imanalieva, GIS and RS Scientist at CAIAG, Kyrgyzstan, and former AoS programm participants. 

Links:

Watch the video about the Central Asian Inspiring Girls Expedition (~3 min), prepared by Perizat Imanalieva, 2021.

11.06.2021

New Snow Cover Data Set Released on the ESA Open Data Portal

News from the ESA CCI+ Snow project to which our group is substantially contributing by developing and implementing algorithms to retrieve global snow cover extent based on AVHRR GAC data.

The first CCI Snow Cover Fraction (SCF) Climate Research Data Packages (CRDP) from AVHRR and MODIS sensors have been released in May 2021. Daily products are available with about 5 km pixel spacing from AVHRR data for the period 1982 – 2019, and with about 1 km pixel spacing from MODIS data for the period 2000 - 2019. The products are available via the CCI Data Portal (http://cci.esa.int/data).
 
In forested areas, the SCF CRDPs provide two different thematic information: snow viewable on top of the forest canopy (SCFV), and snow on the ground (SCFG), i.e. a canopy correction was applied. In non-forested areas, the SCFV and the SCFG products are equal.
 
Further details on the dataset and direct access to the dataset are provided at the CEDA Archive:

 

24.02.2021

New Topics for Bachelor and Master Theses

Are you interested in writing a Bachelor or Master thesis at the remote sensing group? Check out our latest topics.

Don't hesitate to get in touch with our group members to talk about your topics of choice.

Colloquium in Remote Sensing

Spring Semester 2021

Time: Tuesday, 16:15

Zoom: https://unibe-ch.zoom.us/j/93395948718 (you can request the password via the mailing list or per e-mail)

Please contact Stefan Wunderle for further information. (Last update: 12.04.2021)

Program Colloquium SS21 (PDF, 103KB)

Colloquium in Climatology, Climate Impact and Remote Sensing

Spring Semester 2021

Time: Wednesday, 14:15

Place:

Please contact Saba Baer for further information. (Last update: 22.02.2021)

Program Colloquium SS21 (PDF, 94KB)

09.02.2021

receiving antenna jpg

GCOS snow project highlighted in ProClim Flash 73

Mountain regions are sensible to changes in snow cover. From space, we can observe snow cover extent, which is defined as one of the Essential Climate Variables. Thus, snow cover is critical to characterize the Earth Climate in order to mitigate and adapt to its impact under climate change. Its observation over a long time span improves our understanding of climate variability and changes in alpine snow cover. We develop a novel fractional snow cover product and analyse changes in snow cover extent using consistent satellite imagery over a ~40 years period. In the current ProClim Flash, the ongoing GCOS Switzerland snow project is highlighted as an example for climate relevant observation from space.

Check out the ProClim Flash 73 here

Read about the GCOS Fractional Snow Cover Project here

09.02.2021

graph pedestrians

Deep traffic volume analysis during COVID-19 pandemic

Between April and November 2020, the Remote Sensing Research Group analyzed the pedestrian and traffic volumes on different public spaces, streets and motorways in Switzerland. Convolutional neural networks were used to automatically detect different object classes in more than 200'000 public webcam images. Impacts of the restrictive measures of the Federal Council due to the COVID-19 pandemic on the pedestrian volume were most clearly observed in April and the beginning of March in city centers. The figure shows daily and weekly average of detected pedestrians and vehicles per webcam image at Barfüsserplatz in Basel. Moreover, a constant decrease in traffic volume from April to August 2020 and a slight decrease from end of October 2020 was observed for all motorway sites. In spring 2021, this study will be continued and extended to analyze further developments and impacts of the COVID-19 pandemic on pedestrian and traffic volumes in different public spaces.

For further information feel free to contact: Céline Portenier

Colloquium of the Remote Sensing Research Group

Fall Semester 2020

Time: Tuesday, 4:15 pm

Place: Seminar Room 016, Mittelstrasse 43, 3012 Bern

 

Program Colloquium FS20 (PDF, 105KB)

Colloquium in Climatology, Climate Impact and Remote Sensing

Fall Semester 2020

Time: Wednesday, 2:15 pm

Place:

Please contact Saba Baer for further information.

Program Colloquium FS20 (PDF, 99KB)

27.05.2020

Semantix logo

Two new projects at the Remote Sensing Research Group to study climate change from space

The Remote Sensing Research Group (RSGB) was successful in two open funding calls to study essential climate parameters and to further contribute to climate research with satellite data.

The first new project, called SemantiX, combines heritage AVHRR and Copernicus Sentinel-3 A/B data to create climatological time series for Essential Climate Variables (ECVs; snow cover, lake surface water temperature und vegetation index). Processed in semantic data cubes and linked to mobile citizen science applications, the information can be easily accessed by end users. This provides a new and interactive way to access climate time series from satellite data and learn about climatic changes. The two-years project is funded by the Austrian Space Application Program (ASAP) and will start August 1, 2020.

The second project was recently funded by the Global Climate Observing System (GCOS) – MeteoSwiss. To enhance and strengthen the Swiss climate observing system, a novel, long-term fractional snow cover data set will be developed for 1981 until 2021. The 40-year time series of fractional snow cover for Switzerland will be extracted from AVHRR data (archived at RSGB) including uncertainty and quality information. By the end of the project, the data set will be publicly available to support future climate studies as an independent data source on snow cover dynamics. The production and analysis of the data set over the 18 months project will be in close cooperation with Climate Evolution, MeteoSwiss.

 

27.05.2020

AVHRR L1B EO-SIP, archived at ESA, detailed per satellite and year

European Space Agency announces its new 40 year heritage satellite data repository

The value of the Advanced Very High Resolution Radiometer (AVHRR) heritage mission for climate studies was spotted from early on by the Remote Sensing Research Group (RSGB) with it’s own receiving station and archiving facilities. Significant support from the OCCR over the first years of data reception, allowed the RSGB to compile and harmonize the largest 1 km European AVHRR satellite archive from 1981 until today. In the frame of ESA’s Long Term Data Preservation – Heritage Mission Program, the unique AVHRR data holding of the University of Bern could be reprocessed and archived at ESA. It is now publicly available via ESA’s dissemination service. RSGB’s data expert Christoph Neuhaus could rescue in addition more than 90.000 data sets, which were stored in ESA archives and will be soon included in the new satellite data repository. The collaboration with ESA will most likely be continued with a re-processing of the European and global 1 km AVHRR data sets to facilitate data discoverability and access for future users. The press release and data access can be found here.

In addition, here again the links provided in the text:

‘ESA’s dissemination service’: https://earth.esa.int/eogateway/catalog/avhrr-level-1b-local-area-coverage-imagery

‘Press release’: https://earth.esa.int/eogateway/news/forty-years-of-heritage-data-highlight-warming-european-lakes?category=News

9th EARSeL workshop on Land Ice and Snow

Remote Sensing of the Cryosphere: Monitor what is vanishing

03 - 05 February 2020, Bern, Switzerland

The preliminary workshop programme is now online and can be found under:

http://www.earsel.org/SIG/Snow-Ice/workshop/programme.php

Please remember, the early registration deadline closes this Friday, 20 December 2019.

We are looking forward to see you in Bern.

Mission Erde at Planetarium, Verkehrshaus Luzern

The new show "Mission Erde" at the Verkehrshaus Luzern is running. Helga Weber, Stefan Brönimann and Peter Stucki have contributed with their scientific expertise to the creation of this show.

More information including show times:

www.verkehrshaus.ch/besuchen/planetarium/.../mission-erde

Trailer: 

www.verkehrshaus.ch/besuchen/mission-erde 

Colloquium in Climatology, Climate Impact and Remote Sensing

Fall Semester 2019

Time: Wednesday, 2:15 pm

Place: Seminar Room 324, Mittelstrasse 43, 3012 Bern

 

Program Colloquium FS19 (PDF, 61KB)

Colloquium of the Remote Sensing Research Group

Spring Semester 2019

Time: Tuesday, 2:00 pm

Place: Room 302, Hallerstr. 12

 

Program Colloquium FS19 (PDF, 71KB)

Colloquium in Climatology, Climate Impact and Remote Sensing

Spring Semester 2019

Time: Wednesday, 2:15 pm

Place: Room 124, Mittelstr. 43

 

Program Colloquium FS19 (PDF, 59KB)

Colloquium in Climatology, Climate Impact and Remote Sensing

Autumn Semester 2018

Time: Wednesday, 2:15 pm
Place: Room 120, Mittelstr. 43

 

Program Colloquium HS18 (PDF, 83KB)

Colloquium of the Remote Sensing Research Group

Spring Semester 2018

Time: Tuesday, 5:00 pm
Place: Room 310, Hallerstr. 10

 

Program Colloquium FS18 (PDF, 63KB)

Colloquium in Climatology, Climate Impact and Remote Sensing

Spring Semester 2018

Time: Wednesday, 2:15 pm
Place: Room 310, Hallerstr. 10

 

Program Colloquium FS18 (PDF, 79KB)

Colloquium in Climatology, Climate Impact and Remote Sensing

Autumn Semester 2017

Time: Wednesday, 2:15 pm
Place: Room 310, Hallerstr. 10

 

Program Colloquium HS17 (PDF, 54KB)

Colloquium in Climatology, Climate Impact and Remote Sensing

Spring Semester 2017

Time: Wednesday, 2:15 pm
Place: Room 310, Hallerstr. 10

 

Program Colloquium FS17 (PDF, 55KB)
AVHRR Satellitenbild über Europa

Open Topics for Master Theses in the Remote Sensing Group

Do you have interest to write a master thesis in remote sensing? Open topics related to 'Fire & Ice', which have been currently presented, can be found in the linked file. Don't hesitate to ask.

Open Topics for Master Theses (PDF, 1.2 MB)
Gruppenbild Ausflug Schneeschuhwanderung

Climatologists on snowshoes

Fabulous weather, good snow conditions, and a great view on the Alps: A perfect setting for the snowshoe hike of the unit climatology to Col des Neigeux in the Jura mountains. Thanks for organizing the group excursion, Peter Stucki!

8th EARSeL LISSIG workshop was a success

The 8th EARSeL workshop on Land Ice and Snow organized by the Remote Sensing Research Group Bern finished sucessfully. Over 50 participants from the remote sensing cryosphere community discussed amongst other current topics about snow cover monitoring, snow hydrology, new sensors and technologies. The workshop was dedicated as well to COST action ES1404 and future activities from ESA (CCI+).

8th EARSeL LISSIG Workshop Remote Sensing of the Cryosphere: Past - Present - Future

The European Association of Remote Sensing Laboratories and the Remote Sensing Research Group at the Institute of Geography cordially invite you to attend the 8th WORKSHOP OF EARSeL SPECIAL INTEREST GROUP Remote Sensing of Land Ice and Snow, which is to be held at the Institute of Geography, University of Bern, Switzerland, from 07 - 09 February.

Workshop Programme: Remote Sensing of the Cryosphere (PDF, 186KB)

Colloquium of the Remote Sensing Research Group

Autumn Semester 2016

Time: Tuesday, 4:15 pm
Place: Room 310, Hallerstr. 10

 

Program Colloquium HS16 (PDF, 56KB)

Colloquium in Climatology, Climate Impact and Remote Sensing

Autumn Semester 2016

Time: Wednesday, 2:15 pm
Place: Room 310, Hallerstr. 10

 

Program Colloquium HS16 (PDF, 56KB)
Eine Teilnehmerin des Workshops beurteilt eine Schneekarte

Workshop snow monitoring in Lesotho: Impressions of participants

"We do not have snow data available, and now, if we get asked for that, we can reply with good data (...)", said a workshop participant. Further quotes of local stakeholders taking part in the workshop can be found in the ESA VAE News.

Spring snow cover in the Alps

The current NASA EO Newsletter draws attention to the paper of F. Hüsler et al. (2014) on snow cover climatology of the European Alps. The MODIS/Terra image shows fresh coating snow across the Alps in mid-March. 

Colloquium in Climatology, Climate Impact and Remote Sensing

Spring Semester 2016

Time: Wednesday, 2:15 pm
Place: Room 310, Hallerstr. 10

 

Program Colloquium FS16 (PDF, 58KB)

Colloquium of the Remote Sensing Research Group

Spring semester 2016

Time: Wednesday, 10:15 am
Place: Room 007, Hallerstr. 12

Program Colloquium Remote Sensing FS16 (PDF, 54KB)

Data reception of Suomi-NPP VIIRS

Besides MSG SEVIRI, we started to receive data of the Suomi-NPP VIIRS sensor with our Eumetcast receiving station. VIIRS builts upon the tradition of the AVHRR and MODIS sensor and expands a series of land and cloud science measurements.

High resolution image (JPG, 649KB)

Swiss Global Change Day Poster Award 2015 for Céline Dizerens

The poster of Céline Dizerens entitled 'Webcam Imagery Rectification and Snow Classification' was awarded at the 16th Swiss Global Change Day. The price of the poster award 2015 (Geosphere / Biosphere) has the amount of 1000 CHF.

Poster SGCD C. Dizerens (PDF, 1.9 MB)