32. Ridai, O.
Hungary
THE TRACE BACK OF THE GEOMORPHOLOGICAL DEVELOPMENT OF THE
MUELA PLATEAU - ZARAGOZA, SPAIN
The Muela plateau is not only one certain **mesa", it is a special type of uplifted and more or less dissected
sequence of mainly Miocene sediments. The area is lithologically rather simple. The top "paramo"' limestone,
Miocene, is thin-layered and interbedded by marl and gypsum. It seems to be simple in tectonical and
geomorphological aspects also.
The plateau is surrounded by the Ebro River in NE, and by two tributaries, the Huerva and the Jalon in the
SE and NW, respectively. In the SW only a temporary watercourse does exist for all the other permanent rivers
are allochtonous.
The climate is semiarid, and so the “natural” vegetation is sparse. During the analysis of the drainage patterns,
to be seen on the airphotos, it turned out that in contrary to the former opinions, the whole area has an
integrated drainage system. The drainage pattern is mostly clearly determined by structural lines and in
particular, always closed units could be distinguished along the main valleys. The lower points of these units
do indicate the stages of the dissection of the plateau.
In total accordance with the formation of six river terrace levels, several glacis and filled up valleys, the
complete geomorphological history of the plateau, could be reconstructed. All the statements of the
interpretation were justified during the field-check.
The old high terraces and the connected steps of dissection indicate Pleistocene climate changes. The fill of the
valleys and their young incision is Holocene.
22
Remeyn, J.M.
de Kock, R.B.
Stellingwerf, D.A.
Netherlands
INFRARED FILM FOR VITALITY STUDIES OF
NORWAY SPRUCE AND AERIAL THERMOGRAPHS
FOR FOREST DISEASE DETECTION IN
THE NETHERLANDS
Abstract not provided.
34. Schmidt-Falkenberg, H.
Germany (F.R.G.)
EXPERIMENTAL RESEARCH IN PHOTO-INTERPRETATION
The Working Group has performed experimental research on the methodology of photo-interpretation. The
present program "'Integral Photo-Interpretation" has been started in October 1970. At present 56 scientists
from various technical fields (and from ten countries) participate in the experimental work. In the report of
the Working Group, at first, general explanations of the problem are given. It is the aim of this research to
determine a) whether in case of specific (mostly very complex) objectives of interpretation, the amount and
value of information obtained by interpretation and its reliability (likelyhood) can be increased by a certain
methodical procedure e.g. by integral interpretation, and b) which and how much information a certain group
of interpreters can derive from an aerial photograph. The results of such research will probably be also of
interest for the automated interpretation of aerial photographs. After listing some publications on the subject
under research and after informing on the program, the author gives a review on the state of work, on the
sequence of interpretations, and on the interpreters participating.
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