ACTIVITIES OF TECHNICAL COMMISSIONS. OF TNAP BETWEEN 1972-1976
COMMISSION I
Aerial photographs are required in our country to a large extent
in map production and planning and implementation of big projects. The
photographs used with these purposes are supplied by two state organiza-
tions, namely the General Directorate of Mapping, and the General Direc-
torate of Land Registeration and Cadastre.
Aerial photographs are taken by a team composed of pilots, navi-
gator and camera operator with the use of Zeiss and Wild cameras of 15/23
and 21/23 formats.
As base maps required for flight plans are completed for the whole
country and with economic reasons, visual and semi-instrumental navigati-
on methods are used.
In addition to the purposes of topographic map production, in 1973
1975, black and white and infra-red photographs in an area of 10.000 Km
were taken at the scales of 1/10.000 and 1/20.000 with purposes such as
determination and control of metropolitan areas in 21 provinces, settle-
ment areas along costs and lake banks, determination of areas damaged by
earthquakes and new settlement regions, project studies of the Bosphorus
Bridge and surrounding roads, outskirts in 8 provinces, various forestry
works, determination of underground coal basing and a study on North
Anatolian fault line.
Again in 1976, infra-red and false colour photographs are taken
besides the normal usage for agricultural control, study of pollution of
air and sea and its effect on vegetation. Furthermore, multispectral
photographs are taken for hydrological geological and morphdogical researc
hes.
Ten working groups are formed for researches and investigations
in various subjects of interest to the commission. The results of these
works shall be reported later on.
COMMISSION II
In our country, authorization to produce maps with photogrammetric
methods is given to certain official organizations. Therefore, precise
photogrammetric instruments of various types exist at these producing
agencies and at the establishments providing training inphotogrammetry.
Since the adoption of photogrammetric methods in the country, these orga
nizations have tried to solve their problems with their own capabilities.
- Cameras existing in Turkey for use in terresterial and aerial
photogrammetry, analog and analytic compilation instruments and their
accessories, fields of use.
- Usability of the instruments and instruments considered neces-
sary depending où purposes of use and effeciencies.
