OTHER RESEARCH INSTITUTES AND
ORGANIZATIONS
The Forest Research Institute
Buses took 80 visitors from 21 countries to the
Department of Forest Inventory and Yield of the
Institute where presentation was made by Dr.
Simo Poso. He told that the major objective
was to get information on the quantity and de-
velopment of the raw material for purposes of
forest policy. A new methodology has been de-
veloped in order to apply aerial photo interpreta-
tion to forest inventory in a way suited to Finnish
conditions. A general description of this method
and the state of application was given.
The Metsähovi Observatories
Kirkkonummi (30 km)
A visit to the Metsähovi-Observatories of the
University of Helsinki, of the Helsinki University
of Technology, and of the Finnish Geodetic In-
stitute was made by 58 visitors from 24 coun-
tries.
Dr. Juhani Kakkuri and Mr. Kari Kalliomäki from
the Finnish Geodetic Institute presented the
Satellite Laser Observatory and Mr. Seppo Urpo
the Radio Telescope Observatory. The visitors
had an opportunity to see a large radiotelescope
(diameter 13.7 m), which is used for radio-astro-
nomical studies and will also be used for very
long baseline interferometry (VLBI) as well as a
satellite laser for satellitegeodetic measurements.
The National Board of Survey (NBS) and
the National Board of Public Roads and
Waterways (NBPRW)
There were 209 visitors from 41 countries in the
University lecture hall in which Mr. Hilpas Lyyti-
käinen and Mr. Osmo Niemelä described the
photogrammetric methods used in topographic
mapping, and the use of aerial photography and
photointerpretation in various mapping operations
at the NBS.
On behalf of the Mapping Section of the Road
Planning Division of NBPRW Mr. Raimo Koski pre-
sented photogrammetric mapping on large scales
1:500—1:2000 and data processing needed for
road design work.
After the presentations the group was taken by
buses to the NBS exhibition of maps for an over-
all view of the production of contemporary na-
tional map series and the mapping situation in
Finland.
The City of Helsinki Real Estate Office
The presentation was given by Mr. Osmo Ojanen
in the showrooms of the Metro. The Helsinki
Real Estate Office, City Survey Department, pre-
sented city mensuration and photointerpretation
and the contents and preparation of various kinds
of maps together with methods of drawing and
duplicating. In the Metro Office the visitors were
acquainted with the planning and construction of
the Helsinki Metro and the rolling stock to be pro-
cured. There was a special presentation of the
use of close-range photogrammetry in determ-
ining the dimension of tunnels.
148
The Helsinki Metropolitan Area Water Co. pre-
sented the planning and realization of the pro-
ject to construct a tunnel of 120 km with a cross
section of 16 m? to secure water of good quality
for the capital and its surroundings. Photogram-
metry is applied in finding a suitable route for
the tunnel and in controlling the dimensions of
the tunnel.
PRIVATE COMPANIES
Finnmap Ltd
The consulting firm Finnmap (Oy Kunnallistek-
niikka Ab) received 170 visitors from 40 countries
at their head office in Lauttasaari, Helsinki. Finn-
map is the leading surveying and mapping com-
pany in Finland with a complete service also in
aerial photography.
Finnmap's photogrammetric production unit bas-
ed on six plotters, EK 22, and a Hewlett-Packard
21MX computer was presented by Mr. Ilkka Kuk-
konen. Mr. Sven Wik introduced the company’s
projects of major interest both in Finland and
abroad.
Mittaustekniikka Oy
Jarvenpaa (40 km)
The consulting engineering company Mittaus-
tekniikka Oy invited visitors to hear the introduc-
tion made by Mr. Veikko Korhonen. He talked
mainly about applying photogrammetry to large-
scale mapping, measuring the volume of oil re-
servoirs, and crossection mensuration of tunnels.
Automatic data processing applications of pho-
togrammetric automatic drawing instruments and
digitizers for miniature computers were also pre-
sented. There were 32 visitors from 16 countries.
Soilwater Consultants
As one of the largest consulting engineering
companies in Finland, Soilwater Consultants
offers a complete range of services in environ-
mental planning and in building. The head office
of the company is situated in Lauttasaari, Hel-
sinki, where the photogrammetric mapping pro-
cess was presented by Mr. Matti Seppálá to
19 visitors from 11 countries.
STUDY TOUR TO LAPLAND
Among the tours during the weekend of July
17—18, 1976, the study tour to Lapland offered
an opportunity to all those interested in getting
acquainted with the inventory of forests and
with geological, geophysical and meteorological
research work carried out north of the Polar
Circle. The number of participants was 26. They
were looked after by Mr. Reino Ruotsalainen.
On Saturday the participants flew from Helsinki
to Ivalo, then took a bus 35 km south, to Laanila,
where field work carried out in the photogram-
metric inventory of forests was presented with-
in the test area of the Institute for Forestry Re-
search.
