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Picture of the Month

2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014

October 2014

October 2014

A remarkable picture showing the Sphinx observatory at Jungfraujoch and its shadow. The picture was discovered by Dr. Elmar Brockmann, swisstopo, viewing the data on map.geo.admin.ch

June/July 2004

June/July 2004

Attending to the Spec Inc. Cloud Particle Imager (the gold coloured instrument on the right) on the Sphinx terrace during the CLACE 3 campaign 2004. The instrument was used to record images of the ice crystals (10 μm to a few mm) that were present in the cloud enveloping the laboratory. (UMIST Atmospheric Physics Group, Manchester, UK)

August 2004

August 2004

Mr. Ueli Frutiger and his crew of mountain guides during their annual snow removal at the top of the Research Station Jungfraujoch.

September 2004

September 2004

Sunset atmosphere at the Jungfraujoch.

October 2004

October 2004

A rare guest at Jungfraujoch.

November 2004

November 2004

The newly refurbished floor in the library at the Research Station Jungfraujoch.

December 2004

December 2004

Dr. Christian Servais, Université de Liège (Belgium), head of the Laboratory of Atmospheric and Solar Physics research group, also well known as the Migeotte Group.

January 2005

January 2005

Signs of wind and weather at the Sphinx.

February 2005

February 2005

View from Jungfraujoch by moonlight.

March 2005

March 2005

CLACE 4: CLoud and Aerosol Characterization Experiment. A partial view of the installations in the Sphinx.

April 2005

April 2005

imachination: Science and art project by the German artist Tim Otto Roth
http://www.imachination.net/

May 2005

May 2005

Students from the Kantonsschule Zürcher Unterland in Bülach (Switzerland) measuring the solar irradiance at Jungfraujoch as part of their "Research in Switzerland" project week with their tutor Kuno Strassmann from the University of Bern.

June 2005

June 2005

incandescence hivernale -- ice crystal birds -- Wolkenvögel

A moment caught on camera by Julie Cozic.

July 2005

July 2005

Construction site at Gornergrat

August 2005

August 2005

Dr. med. Susi Kriemler (ETH and University of Zurich) and a young test person at the Research Station Jungfraujoch during the ALTKIDS experiment.

September 2005

September 2005

Fascinating cloud formations as seen from Jungfraujoch.

Ocotber 2005

Ocotber 2005

Construction scene at Gornergrat.

November 2005

November 2005

Astronomic dome of the Observatory Gornergrat North.

December 2005

December 2005

Sunset at Jungfraujoch.

January 2006

January 2006

Reopening of Kulm Hotel and the renovated astronomical observatory Gornergrat South.

February 2006

February 2006

Prof. Luc Delbouille, working at Jungfraujoch in February 2006, and celebrating on site his 50 years of research work at Jungfraujoch in the "Migeotte Group" of the Université de Liège (Belgium).

March 2006

March 2006

CLoud and Aerosol Characterisation Experiment, CLACE 5, with researchers from seven institutions. These outside installations have to withstand the harsh weather conditions at Jungfraujoch.

April 2006

April 2006

Evening at Jungfraujoch

May 2006

May 2006

The spark chamber on exhibit at Jungfraujoch, photographed by Monika Loeffel, freelance artist.

June 2006

June 2006

Evening view in May from Jungfraujoch.

July 2006

July 2006

24 hour filter samples of PM10 (particulate matter <10 μm) collected with the high-volume sampler at Jungfraujoch during a strong sahara dust event (on 20 June 2006; filter 076171, on the right; 62.3 μg per m3) and during usual summer conditions (on 04 June 2006; filter 076155 on the left; 2.3 μg per m3).

August 2006

August 2006

An extraordinary full moon night as seen from Jungfraujoch.

September 2006

September 2006

Research at Jungfraujoch -- Top of Science
A snapshot from the scientific conference in celebration of the 75th anniversary of the Research Station Jungfraujoch, held in Interlaken, September 11-14, 2006.

October 2006

October 2006

New meteorology installations.

November 2006

November 2006

View of the Mönch from the Sphinx.

December 2006

December 2006

Hoarfrost at Jungfraujoch.

January 2007

January 2007

The best view of the fog is from the top of Europe.

February 2007

February 2007

CLACE 6 (Cloud and Aerosol Characterization Experiment at Jungfraujoch. Crates of equipment from one of the research groups.

March 2007

March 2007

CLACE 6 (CLoud and Aerosol Characterization Experiment) at Jungfraujoch. Cloud Particle Imager (CPI) and Forward Scattering Spectrometer Probe (FSSP) firmly installed on the Sphinx platform to withstand a snowstorm.

April 2007

April 2007

The Sphinx coming into view through the clouds.

May 2007

May 2007

Spring sunrise over the Aletsch glacier.

June 2007

June 2007

Thunderstorm

July 2007

July 2007

The annual snow removal work at the Research Station Jungfraujoch by a team of mountain guides.

August 2007

August 2007

A permanent resident at Jungfraujoch.

September 2007

September 2007

Snow sampling at Jungfraujoch for Paul Scherrer Institute's investigation of the behavior of mercury in snow.

October 2007

October 2007

Observatory Gornergrat South with the KOSMA radiotelescope of the Universität zu Köln at Kulmhotel Gornergrat. This year marks the 100th anniversary of the Kulmhotel Gornergrat.

November 2007

November 2007

Snapshot from a medical experiment carried out in October by the Centre Hospitalier Universitaire Vaudois CHUV Lausanne and the University Hospital, Berne, at the research station Jungfraujoch.

December 2007

December 2007

Mass balance measurements on Jungfraufirn using a firn-drill to determine the density in the annual layer.

January 2008

January 2008

Daytime view of astronomy in winter: Gornergrat South Observatory at Kulmhotel Gornergrat.

February 2008

February 2008

One of the realities of everyday life of a scientist at the research station Jungfraujoch: the work bench.

March 2008

March 2008

Installation of a sensor node between the roof of the research station and the Sphinx Terrace. This node is part of a PermaSense wireless sensor network prototype (photo: Andreas Hasler)

April 2008

April 2008

Study at Jungfraujoch of short-term acclimatization to high altitude in children by the Institute for Sport and Sport Medicine of the University of Basel.

May 2008

May 2008

New use of the astronomical telescope in the Sphinx cupola at Jungfraujoch with EPFL's UV ozone differential absorption lidar (DIAL) receiver under a clear sky.

June 2008

June 2008

Sahara dust embedded in ice. Photographed during a recent "föhn" storm at Jungfraujoch.

July 2008

July 2008

This chamois was sighted one day at the end of June by Joan Fischer, who reacted quickly and informed Martin Fischer, who made this snapshot. Even the employees of the Jungfrau Railway were astonished to hear about this rare sighting. The chamois was passing over Jungfraujoch from Wallis to Bern.

August 2008

August 2008

Cardiovascular research by a team from the University Hospitals of Bern and Lausanne, Switzerland, during a recent study at the research station Jungfraujoch. (Photo © Gilles Weber cemcav chuv)

September 2008

September 2008

Watching the Earth rotate and gazing at the still standing stars. Photo from the Sphinx at Jungfraujoch.
(Photo © Christian Waldvogel, June 28th, 2008, www.waldvogel.com )

October 2008

October 2008

The Spinx rising out of a cloud.

November 2008

November 2008

A bird's eye view of Observatory Gornergrat South at Gornergrat.

December 2008

December 2008

The Jungfraubahn's impressive efforts to secure the Sphinx rock above the Aletsch exit.

January 2009

January 2009

Observatory Gornergrat South (left) on January 10, 2009, shortly before full moon. Retro-reflecting marks on the telescope are visible due to an artifical light source and the moon. (Photo: Martin Miller)

February 2009

February 2009

The University of Tsukuba, Japan, is testing its 30cm radio telescope at the Research Station Jungfraujoch by mapping the Milky Way in CO and Cl lines. The telescope is equipped with a 4-K cooled 500 GHz sensitive detector. The final destination of the telescope wil be the Antarctic.

March 2009

March 2009

View of sunrise from Jungfraujoch on a late winter morning.

April 2009

April 2009

Snow atmosphere interaction experiment: EPFL-EFLUM deployed a 25m long and 2m tall 'fence' consisting of a fiber optical cable to measure a temperature transect in the snow pack with high spatial resolution. Measurements are based on a Raman-optical TDR system. (Photo courtesy of Hendrik Huwald, École Polytechnique Fédérale de Lausanne)

May 2009

May 2009

Snow probing on Jungfraufirn under harsh weather conditions. Twice a year (spring and fall) snow and firn accumulation on Jungfraufirn is measured as part of the long-term glacier mass balance program of the Grosser Aletschgletscher. (ETH Zürich)

June 2009

June 2009

Signs of summer on the Aletschgletscher.

July 2009

July 2009

The solar tracker installed by the UK's National Physical Laboratory that is interfaced with a high resolution FTIR for measuring the radiative transfer through the atmosphere as part of the UK's CAVIAR project on the water vapour continuum. (http://www.met.reading.ac.uk/caviar/).

August 2009

August 2009

The rector of the University of Bern with his staff and members of the directorate HFSJG on an official visit to the research station Jungfraujoch. The University of Bern joined the Foundation HFSJG this year.

September 2009

September 2009

Frame installation of the first TAUWER project prototype on the Sphinx terrace by the Physics Dept. of the University of Rome “La Sapienza”, together with colleagues from the universities of Bolu and Kafkas Turkey. Data taking of large angle cosmic rays is expected to start in October.

October 2009

October 2009

Fence of firn cores recovered during a test drilling campaign on Jungfraujoch (team: FS INVENTOR SA, University of Maine and Paul Scherrer Institut)

November 2009

November 2009

A bold visitor at Jungfraujoch -- looking for a free meal.

December 2009

December 2009

Winter morning

January 2010

January 2010

View of the Jungfrau through a frosty window at the research station Jungfraujoch.

February 2010

February 2010

The poles for measuring snow depth were lengthened in January by 5 meters in preparation for the coming winter months. This system allows the custodians read the snow depth with binoculars from the safety of the research station Jungfraujoch.

March 2010

March 2010

Dr. Ginette Roland of the Migeotte Group, Université de Liège, Belgium, during a radio interview at Jungfraujoch on March 4, 2010. Madame Roland is a prominent representative of the scientists working at Jungfraujoch and is frequently interviewed by the press, television and radio.

April 2010

April 2010

Installation of the new 1Gb/second internet connection Jungfraujoch-Bern on the network SWITCHlan that connects universities and research institutions all over Switzerland. Felix Kugler, SWITCH, and Stefan Berger, Informatikdienste Uni Bern, are shown here getting the job done.

May 2010

May 2010

Dr. Martin Vollmer, Empa, during the installation of a new calibration tank for continuous measurements of halogenated green house gases at Jungfraujoch.

June 2010

June 2010

On June 2, 2010, a successful 25 year era came to an end: The 3m KOSMA radio telescope was removed from Observatory Gornergrat South and began its long journey to Yang/Lhasa/Tibet. Photos: Dr. Martin Miller, Universität zu Köln

July 2010

July 2010

Master student Emanuel Hammer working on the sonic anemometer (left, measurement of the windfield and turbulende) and fog monitor (right, cloud droplet size distribution). These measurements are being conducted this summer within an international campaign (CLACE) where the interaction of aerosol particles with cloud droplets is being investigated.

August 2010

August 2010

A circumhorizon arc -- a very large halo parallel to the horizon. Although rarely seen in much of Europe, this circumhorizon arc was photographed this summer by a researcher at Jungfraujoch.

September 2010

September 2010

Late summer sunset: the view from Jungfraujoch.

October 2010

October 2010

A remarkable picture showing the Sphinx observatory at Jungfraujoch and its shadow. The picture was discovered by Dr. Elmar Brockmann, swisstopo, viewing the data on map.geo.admin.ch

November 2010

November 2010

Special research guests from Greece: Prof. Alkiviadis Bais and Dr. Natalia Kouremeti of the Aristotle University of Thessaloniki with their differential optical absorption spectroscopy instrument (DOAS). They performed spectral direct sun and sky radiance measurements from zenith to about 0° elevation angles for one week in October at the Sphinx.

December 2010

December 2010

The Sphinx laboratory at Jungfraujoch with special lighting effects by photographer Jeroen Seyffer (Bern)

January 2011

January 2011

Wintersunset over the Monte Rosa massive -- a view from Gornergrat.

February 2011

February 2011

A new fire alarm system is being installed at the entire Jungfraujoch site. Here the installation in the Research Station by technicians from Aeschimann and Siemens.

March 2011

March 2011

Moonlight casts a shadow of the Sphinx on the Kranzberg while Venus shines brightly over the Aletsch glacier.

April 2011

April 2011

PhD students and post-docs of the Professorship of Renewable Energy Carriers at ETH Zurich (www.pre.ethz.ch) during a recent visit to the Research Station Jungfraujoch.

May 2011

May 2011

The Jungfrau in the early morning with the moon setting into a sea of clouds.

June 2011

June 2011

Reconnaissance for the placement of an all-sky camera at Gornergrat with the help of Prof. Didier Queloz and Dr. Bruno Chazelas (picture) from the Université de Genève.

July 2011

July 2011

A Sonic Anemometer (provided by the University of Basel) in front of a nice summer sunset. This measurement is being conducted within a campaign (CLACE) where the interaction of aerosol particles with cloud droplets is being investigated.

August 2011

August 2011

Eigergletcher. Photo by Tobias Stadler.

September 2011

September 2011

The installation of the metal frame and all-sky camera took place on 16 August 2011 at the north tower of the Kumlhotel Gornergrat.

October 2011

October 2011

Visitors from the observatory "Sternwarte Rotgrueb Rümlang", including Dr. Noël Cramer (3rd from the right), astronomical assistant at the research station Jungfraujoch from 1969 to 1989. The alphorn came along just for fun.

November 2011

November 2011

Martin Steinbacher (Empa, Dübendorf) making use of every minute while working at Jungfraujoch, even in the researchers' dining room. To the right, a fellow scientist is busy in the kitchen.

Photo: 2011 © Keystone/Gaëtan Bally

December 2011

December 2011

Reconstruction work in lab 10 at the research station Jungfraujoch during November and December.

January 2012

January 2012

The Sphinx at Jungfraujoch. Keystone/Gaëtan Bally.

February 2012

February 2012

Renovation work on the lab 10 cavern is now completed (see Picture of the Month December 2011).

March 2012

March 2012

This new Switch panoramic camera was recently installed at the Sphinx at Jungfraujoch. Link: http://webcam.switch.ch/jungfraujoch/

April 2012

April 2012

Inauguration of the new Scientific Exhibition at Jungfraujoch.

May 2012

May 2012

Non-invasive measurement of cardiac output using an inert gas rebreathing method during a constant work load exercise test in an adolescent with minor congenital heart disease (a recent study of Prof. Jean-Paul Schmid from the Swiss Cardiovascular Center Bern at the research station Jungfraujoch).

June 2012

June 2012

Study at Jungfraujoch of cardiovascular adjustments to prolonged altitude exposure.
The medical experiment was carried out by the Institute of Physiology of the University of Zurich (Prof. Carsten Lundby).

July 2012

July 2012

Annual maintenance work on the photovoltaics plant at Jungfraujoch, operated by the University of Applied Sciences Bern, Department of Engineering and Information Technology.

August 2012

August 2012

At the end of July, the International Foundation HFSJG had the pleasure to welcome five NASA and ESA astronauts at the research station Jungfraujoch.
In 2011, STS-134 was the penultimate mission of NASA's Space Shuttle program and marked the final flight of Space Shuttle Endeavour. This flight delivered - among other things - an Alpha Magnetic Spectrometer of the CERN to the International Space Station (ISS).
Photo: 2012 copyright by martinkeller.ch

August 2012
August 2012

September 2012

The Sphinx observatory on Jungfraujoch with its weather station is of great interest to many visitors.
It especially was for the visitors from the Korea Meteorological Administration as well as for the group from the Deutscher Wetterdienst.

October 2012

October 2012

The foundation's custodians at the research station Jungfraujoch:
Maria and Urs Otz, Martin and Joan Fischer
their dogs Amira and Sherpa

October 2012

November 2012

In the course of the annual SCNAT (Swiss Academy of Sciences) congress in Interlaken at the end of October 2012 on the subject 'Höher und kälter - Forschung am geographischen Limit', a visit to the High Alpine Research Station Jungfraujoch was organised for the participants.
In the picture, from left to right: Prof. Markus Leuenberger, Director HFSJG; Prof. Thierry Courvoisier, President SCNAT; Prof. Martin C.E. Huber, President of the Jungfraujoch Commission of the SCNAT

December 2012

December 2012

The Matterhorn during sunrise - view from Gornergrat

January 2013

January 2013

View of the Mathildespitze and the Jungfraujoch - the photo was taken by the researcher Pierre Beuret from his sleeping room at the research station Jungfraujoch.

February 2013
February 2013

February 2013

Impressions from the CLACE (Cloud and Aerosol Characterisation Experiment) 2013 campaign:
In the Sphinx-cupola at Jungfraujoch, new inlets were installed in order to place all participating research groups and their projects. For example the group of the Goethe University Frankfurt (Linda Rondo in the picture), which investigates aerosol nucleation and growth.

March 2013

March 2013

A project of the Institute of Applied Physics, University of Bern: Atmospheric remote sensing with a STEAMR (Stratosphere-Troposphere Exchange and Climate Monitor Radiometer) 340 GHz receiver prototype at Gornergrat.
The Stratosphere-Troposphere Exchange and Climate Monitor Radiometer, IAP, Univ. of Bern, CH-3012 Bern, Switzerland

April 2013
April 2013

April 2013

Prof. Grégoire Millet and his colleagues from the Institute of Sport Sciences of the University of Lausanne (ISSUL) compared in their research project at Jungfraujoch the physiological responses during exercise in hypobaric vs normobaric hypoxia.

Picture on top: Researcher controlling the physiological parameters (cerebral oxygenation and blood flow, CO2 pressure etc.) while the subject breathes against a PEP (positive expiratory pressure).

Picture below: Researchers checking the level of saturation and brain oxygenation as well as the power output while the subject is performing a cycling time trial.

May 2013

May 2013

Within the framework of the Stellarium Gornergrat project, the RILA 600 telescope as well as the Takashi Mewlon 250, used for observing the planets, will be installed at Gornergrat. For a first test, the impressive telescope was mounted at the University of Bern (picture: Michael Affolter and Patrick Enderli, Space Research and Planetary Sciences, Physics Institute, University of Bern).

June 2013

June 2013

A beautiful panoramic photo, made on the Sphinx observatory at Jungfraujoch (photo copyright Hans-Peter Sahrhage, www.panoramafotos.ch)

July 2013

July 2013

Board meeting of the Swiss Physical Society (www.sps.ch/spg) in the library of the research station at Jungfraujoch.
Photo by Prof. Dr. Antoine Weis, SPS.

April 2013
April 2013

August 2013

The Stellarium Gornergrat project is advancing successively: the University of Bern installed the telescope in the cupola of the south tower of the Kulmhotel at Gornergrat and in the meantime first tests and mechanical adjustments have been made.
Photos by Anthony Servonet, University of Bern

April 2013

September 2013

The study of the Department of Anesthesiology of the Inselspital Bern in collaboration with DARC (www.darc-airway.com) evaluates aids for intubation under extreme conditions - as for example on the glacier at Jungfraujoch.
The picture shows how subjects intubate an anesthesia-dummy.
Photo Copyright by Inselspital Bern

October 2013

October 2013

At the beginning of September 2013, astronomers of the University of Bern took the first picture with the recently installed telescope at Gornergrat. The instrument still needs to be precisely aligned, but the picture of M31, better known as the Andromeda Galaxy, gives a hint on the potential of the telescope.
Photo by P. Schlatter & M. Ploner
Copyright by University of Bern

November 2013

November 2013

In October, a delegation of the High Altitude Research Center (HARC) of the Taif University in Saudi Arabia visited the Foundation HFSJG during three days for an information exchange and a visit to the two research stations Jungfraujoch and Gornergrat. The picture shows Prof. Leuenberger, director HFSJG, Mr. Otz, custodian, Prof. El-Tarras, board member HARC as well as Dr. Al Saeed, director HARC during their visit at the research station Jungfraujoch.

December 2013

December 2013

Mrs Erika Kienast-Sjögren from the Institute for Atmospheric and Climate Science of the ETH Zurich with the reinstalled ceilometer which measures the lower edge of clouds to see whether there are deep and dense clouds present.
Directly above Mrs Kienast you see the Lidar (Leosphere ALS450), an instrument which uses a laser to detect clouds and aerosols. Mrs Kienast is especially interested in measuring cirrus cloud properties in the midlatitudes.

December 2013

January 2014

The Foundation HFSJG is contemplating about temporarily extending its existing facilities at Jungfraujoch within the present Swisscom station in the Jungfrau east ridge.
For 2014, first installations and tests regarding the suitability of the east ridge site for atmospheric measurements are planned.

December 2013

February 2014

Visit of the High Alpine Research Station at Jungfraujoch in the course of the workshop 'Spawning the Atmosphere Measurements of Jungfraujoch, Schneefernerhaus and Sonnblick', from January 22-23, 2014 in Bern.
The participants braved the bad weather and even took a picture on the Sphinx meteo terrace.

March 2014

March 2014

CLACE (Cloud and Aerosol Characterisation Experiment) 2014 campaign at Jungfraujoch: The picture shows the University of Manchester platform, mast and instrumented 'wing' which is able to rotate and tilt instruments fitted to it directly into the wind. A suite of cloud microphysical instruments are deployed to measure the number, size distribution, phase and shape of the particles in the clouds.
The ETH Zürich HOLIMO holographic spectrometer (uses digital holography to in situ image cloud particles) is also deployed on the wing (centre top) as is the SID (small ice detector to detect small ice particles in clouds) of the Karlsruhe Institute of Technology (nearside).

April 2014

April 2014

Since 2010, the Belgian Institute for Space Aeronomy (BIRA-IASB) is operating a MAX-DOAS (Differential Optical Absorption Spectroscopy) instrument at Jungfraujoch, which is able to measure aerosols and tropospheric trace gases (mainly nitrogen dioxide and formaldehyde) by using scattered sunlight from multiple viewing angles towards the horizon and the valley. These stratospheric and tropospheric observations are key data sets for the validation of satellite instruments and 3D chemical transport models.
The picture shows the researchers Christian Hermans and Frederik Tack on the Sphinx terrace, while replacing some fundamental parts of their instrument.

May 2014

May 2014

GROMOS-C, the new GRound based Ozone MOnitoring System for Campaigns, on its way back to the University of Bern. GROMOS-C has been developed at the Institute of Applied Physics of the University of Bern, in the frame of the PhD thesis of Susana Fernandez Vidal. GROMOS-C measures the microwave emission of the atmosphere in the frequency range from 109 - 115 GHz what allows to retrieve the altitude distribution of ozone from approx. 25 - 70 km altitude and also from CO. GROMOS-C has undergone a detailed test campaign on Jungfraujoch before it goes to a new campaign on La Réunion island.

June 2014
June 2014

June 2014

At the research station at Jungfraujoch the Institute of Veterinary Physiology of the University of Zürich (Dr. Edith Schneider Gasser and Dmitry Kosenkov) was testing in Long Evan rats how to revert the memory deficiency caused by high altitude. The animals housed either in standard laboratory conditions or in an enriched environment giving the possibility to explore and exercise. Memory was tested in a black arena where animals were familiarized with three objects. Afterwards, one of the objects was changed either to another location (spacial change) or by another object (visual change). If the animals could remember, they recognized the change and explored the displaced or exchanged object. With these behavioral tests the research group can assess the importance of exercise and enrichment in the adaptation to altitude.

June 2014

July 2014

The photovoltaic plant (1,13 kWp) of the Photovoltaic Laboratory of the Institute for Energy and Mobility Research at the Bern University of Applied Sciences, which was installed on the front of the research station at Jungfraujoch in 1993, has been operated for more than 20 years without any interruption and with an availability of the energy production and the measurement data of >99,9%. The plant has virtually not shown any degradation yet, despite the extreme climatic conditions at this height (3454m).
This summer, a second plant with the latest technology will be installed close to this plant, in order to demonstrate the technical improvements achieved in the meantime in a field test on a high alpine plant and to compare its production with that of the old plant.

Picture © Photovoltaic Laboratory

August 2014

August 2014

Another picture made within the Stellarium Gornergrat project. It shows the North America Nebula (NGC 7000). The remarkable shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexiko.

Picture © Stellarium Gornergrat

September 2014a
September 2014b

September 2014

At the moment, there is construction work going on at Jungfraujoch, as the research station is getting a new protective roof. In the future, the new, steeper roof should prevent the accumulation of too much snow. Due to the bad weather this summer (lots of snowfall), work at this height is even more difficult and rather slowly progressing.

October 2014

October 2014

A remarkable picture showing the Sphinx observatory at Jungfraujoch and its shadow. The picture was discovered by Dr. Elmar Brockmann, swisstopo, viewing the data on map.geo.admin.ch