Showing posts with label SGO100. Show all posts
Showing posts with label SGO100. Show all posts

Monday, 2 June 2014

SGO history 1944: Lapland War and destroyed Observatory

I was browsing photos of the Finnish Wartime Photograph Archive, a project of the Finnish Defence Forces, and found a set of photos of the Observatory taken by an army photographer 30 October 1944. The photo title given at the sa-kuva.fi site states: “Saksalaiset ovat perääntyessään tuhonneet maailman vanhimman observatorion Sodankylässä täydellisesti.”, i.e “During the withdrawal, the German troops have completely destroyed world’s oldest observatory in Sodankylä”. This was no surprise, as the German troops used the scorched Earth policy during the withdrawal, for example they practically burned all the buildings in Rovaniemi. Hence, Observatory was no exception in this unfortunate war.


It is interesting to read the Observatory annual report of 1944. This document was written by the Observatory Director E. Sucksdorff. According to the report, all the population of Lapland was evacuated during September 1944. The Observatory staff emptied their desks on the 15 September. They took all the recorded data with them, unprinted manuscripts, unfinished studies as well as most important observation and recording devices. The staff and all the material were relocated to Helsinki. However, it was impossible to take everything at short notice and much of the equipment was left behind. Observatory staff wrote notes in Finnish and German, which explained the special purpose of the site and asked that the facility would be left intact. The notes were placed in visible locations, such as on doors etc.


Unfortunately the notes did not help at all and, in practice, the entire Observatory was destroyed. Only an old, and rotten, pilot ball tower (pilotpallotorni in Finnish - for weather balloon experiments, I suppose) and some meteorological observation devices survived. Only ruins were found when Finnish Defence Forces arrived at the Observatory. Among the army personnel, was a photographer, who took some photos of the destruction. Today these photos are publicly available at sa-kuva.fi. This is a pretty unique site to explore the WWII happenings in Finland -- and well worth to visit. Hence, today we feature some photos of the burned Observatory site during the Lapland war year 1944.


The tower and meteorological observation devices were the
only untouched instruments at the site. Source: SA-kuva

Source: SA-kuva

Source: SA-kuva

Source: SA-kuva

Source: SA-kuva

Source: SA-kuva

Source: SA-kuva

Source: SA-kuva

Source: SA-kuva

Saturday, 4 January 2014

The modern office

On Wednesday we showed the first records of geomagnetic measurements made with SGO. While these are fascinating in their own right, the background equipment provoked comment, so here are some more photographs of the background scenery.

Yes, once upon a time it was really like this (Photo: D. McKay-Bukowski)

From the days when you really "dialled" a number
and the ring tone was the actual ringing of an
actual bell. (Photo: D. McKay-Bukowski)

Yes, this was what a modern office had... once upon a time!

Thursday, 2 January 2014

Through the archives

Yesterday we showed the records of the first geomagnetic measurements made at Sodankylä Geophysical Observatory (SGO). These were from the archive kept in the observatory library. Today, we have some more photographs from the visit to the archive.

Jyrki Manninen and Esa Turunen looking through
the archives (Photo: D. McKay-Bukowski)


Current director, Esa Turunen, with the very first
geomagnetic measurement (Photo: D. McKay-Bukowski)


Locking away the archives for another
100 years (Photo: D. McKay-Bukowski)

Wednesday, 1 January 2014

100 years of measuring the geomagnetic field

Today, 1st January 2014, Sodankylä Geophysical Observatory (SGO) celebrates 100 years of  official geomagnetic measurements.

Yesterday at the observatory, we went down to the archives to take a look at those very first measurements. Well, here they are:

The original measurement records from SGO.
29-Dec-1913 - 01-Jan-1914 (Photo: D. McKay-Bukowski)

Current director, Esa Turunen, inspecting the original measurement
records from the archive. (Photo: D. McKay-Bukowski)


The oldest routine task of SGO is the regular measurement of the Earth's magnetic field. These measurements began on 1st January 1914 and continue until today. The only gap in the time series is between 16th September 1944 and 1st January 1947 due to the destruction of the observatory during the Lapland War.

The magnetic measurement huts (Image: SGO)

The analogue La Cour instrument was in operation until 31st December 1995. Nowadays digital data is produced in the variation room of the observatory by a Polish torsion photoelectric magnetometer (TPM), a Russian TPM magnetometer and a Danish fluxgate magnetometer (FGE). Weekly measurements of the absolute magnetic field provide the base line control.


LINK

Wednesday, 27 November 2013

Sodankylän geofysiikan observatorio 100v.

Harking back to our celebrations of the 100-years of Sodankylä Geophysical Observatory, science journalist Jari Mäkinen presents a short video on Tiedetuubi. The text is in Finnish, but there is a lot to see of the host Observatory at Sodankylä. To quote from the Tiedetuubi website...
Sodankylän geofysiikan observatorio vietti syyskuun lopussa 100-vuotisjuhliaan ja Tiedetuubi kävi paikalla paitsi juhlimassa, niin myös tutkimassa mitä Sodankylässä oikein tehdään ja mitä sadan vuoden aikana on tapahtunut.
Visit their website here:   http://tiedetuubi.fi/?q=node/572

Tuesday, 24 September 2013

Thanks for SGO100

A message from the director of SGO, Esa Turunen...

SGO is now 100 years old and the new century is here. Warm thanks to everyone supporting the arrangements, our guests gave positive feedback of the experience. The Open House event had 230 visitors, Science Day for schools 180 pupils, the Studia Generalia -lecture by Esko Valtaoja was attended by more than 200 listeners and similarly 200 persons found their way to the main ceremony at the Sports Hall ...

Esa Turunen addresses the gathering. (Photo: D. McKay-Bukowski)




We had a final kakkukahvit (= cake & coffee) event with our friends from FMI at Polaria on Monday and we will organize a similar coffee break in Oulu at the first convenient opportunity.

Friday, 20 September 2013

SGO 100 -- The last half century

The sixties and early seventies were a period of intense expansion. In 1962 and 1964, new buildings were constructed for the ionospheric station. Riometers were installed at SGO in 1963 to study the lower ionosphere. In 1968 a new administrational centre, with accommodation, library and archive storage was constructed. In 1971, the Pittiövaara site was also extensively developed.

Although primarily a geophysical observatory, the astrophysical sciences were also well attended. A radio astronomy receiver was built for the IGY to measure scintillation of the radio star Cas A (a task that KAIRA still undertakes today) and in 1972 a zenith telescope was constructed to make precision measurements of the polar variations... a measurement set that continued for some 20 years until replaced by recent satellite-based methods.

In 1975, Finland joined the European Incoherent Scatter Radar Association (EISCAT), along with several other countries. This resulted in a new building and a 32m parabolic antenna being constructed at SGO. Initially operating at UHF frequencies for radar reception and the HI neutral hydrogen line for interplanetary scintillation measurements, it has recently been upgraded to operate at the lower VHF frequencies.

The 32m EISCAT antenna at SGO.


In 1997, SGO merged with the University of Oulu, and is now a major research unit of the university. In 1998, University's observatory merged with SGO.

And, of course, SGO is responsible for KAIRA. Constructed during 2011-2012, KAIRA is one of the flagship projects of SGO, but one that is built on a long tradition of careful, methodical and patient measurements... 100 years of extremely valuable scientific achievement and a crucial set of data about the natural world.


References

Kataja, "A Short History of the Sodankylä Geophysical Observatory", Geophysica, 35(1-2),3-13, 1999.

McKay-Bukowski, "KAIRA: The Kilpisjärvi Atmospheric Imaging Receiver Array", submitted, 2013.

Thursday, 19 September 2013

SGO 100 -- An observatory is formed

This month, we are celebrating the 100th anniversary of Sodanklyä Geophysical Observatory (SGO). As part of the celebration of this prestigious occasion, we are looking back at the history of the facility and what a tumultuous past it has had. Yesterday we considered the very early days leading up to the formation of the permanent observatory. Today, we continue the story.


On inception, SGO became the first permanent magnetic observatory in the Arctic. It operated successfully despite the outbreak of the First World War. Only during the Finnish War of Indepence in 1918 was there any interruption to the measurements, but even then, only for a few months.

In 1927, auroral phtography was started at the SGO site and the station participated in the Second Polar Year (1932-1933). This was an important time for the observatory with new international collaborations being forged. New measurements were being developed to detect rapid variation of magnetic fields and the so-called earth-currents. In addition, SGO was an important meteorological station as well as a geophysical observatory.

The main building of SGO from 1913-1944.


SGO continued routine observations during the Winter War of 1939-1940 and when the hostilities resumed in 1941. During the Winter/Continuation War, SGO stayed in full operation. However, with the outbreak of the Lapland War (1944-1945), the observatory had to be evacuated and this took place on 15 September 1944. The evacuation was rushed on only the personnel and the most important archives could be saved.

During mid October 1944, the observatory was overrun and destroyed.

At the conclusion of the Lapland War, the Finnish Academy of Science and Letters was quick to return and in mid-1945, the first weather observations resumed with magnetic recordings commencing on New Year's day of 1946. Rebuilding and improvement continued throughout this time, leading up to the Third Polar Year (1957-1958). This event (later renamed as the International Geophysical Year) was a major scientific achievement for the world, and SGO played and important part. In addition to routine observations, it heralded the installation of a new ionospheric sounding station and, at around the same time, the first seismosgraphy measurements commenced at the site.


Reference

Kataja, E., A Short History of the Sodankylä Geophysical Observatory,
Geophysica, 35(1-2),3-13, 1999.

Wednesday, 18 September 2013

SGO 100 -- the early days

This month, we are celebrating the 100th anniversary of Sodankylä Geophysical Observatory (SGO). As part of the celebration of this prestigious occasion, we take a look back at the history of the facility and what a tumultuous past it has had.

The first geophysical observations at Sodankylä actually pre-date the 1913 founding of the observatory. In fact, the first observations from the region date back to the First Polar Year (1882-1883). The Finnish Society of Sciences and Letters participated in the Polar year work, by setting up a small meteorological station as the village of Sodankylä. This station included geomagnetic observations ad well and continuous magnetic observations were conducted from 21 August 1882 to 31 August 1883. One last set of measurements was made in August 1884.

Observatory buildings at Sodankylä for the First Polar Year, 1882-1883.


Since then several proposals had been made to carry out magnetic surveys, but it was the Finnish Academy of Science and Letters made the necessary breakthrough. The Academy was founded in 1908 and one of their first tasks was to establish a detailed plan for a permanent station for the purposes of astronomical and geodetic measurements. A large area of land near Sodankylä was acquired and in late 1913 the Sodankylä Geophysical Observatory (SGO) commenced operations under the directorship of Dr J. Keränen.

We take it for granted now, but that was in a different age, when winters were brutal and the station, located some 1000 km from the capital city, was a remote outpost indeed.


References

Nevanlinna, H., "Geomagnetic Observations at Sodankylä during the First International Polar Year (1882-1883)", Geophysica, 35(1-2), 15-22, 1999

Kataja, E., "A Short History of the Sodankylä Geophysical Observatory",
Geophysica, 35(1-2),3-13, 1999.

Saturday, 14 September 2013

KAIRA 3D film shown at SGO Open Day

Today, as part of the Observatory's 100 year anniversary, there is an open day at Tähtelä. One of the features of the day, will be a chance to see the KAIRA film in 3D in the conference room at SGO.


The open day runs from 10:00 - 16:00 (Finnish time) on Saturday 14 September 2013.

Friday, 13 September 2013

Sodankylä Geophysical Observatory Open Day

Just a reminder...

... for those in the Sodankylä area, there will be a public open day tomorrow 14th September 2013 from 10:00 until 16:00 at the SGO site at Tähtelä. This will be a great opportunity to see the institute, the EISCAT facility, and lots more!

The open day is part of the celebrations this month of the 100th anniversary of the observatory.

Details:

http://blog.eiscat3d.org/2013/09/visit-sodankyla-eiscat-site.html
http://www.oulu.fi/sgoenglish/node/18448

Sunday, 1 September 2013

A month of celebration

This month is a special month for Sodankylä Geophysical Observatory. It will be the 100th anniversary of our foundation.


Throughout September, we will have a number of features leading up to the actual day of celebration, which will be held on the 21-Sep-2013.

Link: http://www.oulu.fi/sgoenglish/node/18448

Sunday, 25 August 2013

Esa Turunen appears in Lapin Kansa

Hey! Look who turned up on the Lapin Kansa newspaper yesterday... Director of Sodankylä Geophysical Observatory, Esa Turunen!


The cause for the article is that the observatory is celebrating its 100th anniversary next month. No doubt we'll be posting lots about that in the near future.