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International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B7. Istanbul 2004 
1.1.2 The first rational approach: the convergence of geo- 
sciences: Interdisciplinary approach (IDA) has initiated, in 
theory and practice, the permanent dialog among all earth 
sciences within one fundamental science, the international 
environmental law. The forms and specializations of juridical 
instruments have had a large spectrum: from international law 
on environment preservation or protection of fluvial and 
maritime environment, to the special environment of the polar 
ecosystems or the total environment, with its multiple pollution 
sources. Also, the structures and activity of international 
institutions (of economic or other profile, inter-governmental 
and non-governmental), as well as the sub-regional mechanisms 
(fluvial and maritime commissions) have played and still play 
an important part. 
Within this normative and institutional frame, the principle of 
international cooperation was fully stated, enriched with the 
dimension of relations in the field of environment factors 
protection and resources conservation, stressing more intensely 
the general and specific principles of the international 
environmental law. Unfortunately, law regulations in this field 
registers only a few clear and precise rules regarding the 
liability for the transbordering damages caused to the natural 
environment and an insufficient number of compulsory 
ecostandards regarding the protection of environmental factors 
at regional and international level. 
1.1.3 Confirmation of the premise of concerted normative 
action - SIEA: Problems complexity and the multitude of 
unfulfillments in environment monitoring and resources 
protection, according to the internal and international law 
principles and regulations for environment as well as due to the 
missing quantitative and qualitative data about environment 
state in developing countries regions on one hand and due to the 
non-observance of ecological requirements, in conformity with 
the humanitarian law principles and rules, that forbid the use of 
weapons that cause superfluous and serious prejudices to the 
natural and human environment on the other hand, impose of 
necessity unified processes of implementation, monitoring and 
administration for the entire System of International 
Environment Arrangements (SIEA), otherwise said, they 
impose a real normative unification. 
While analyzing the dimensions of the new system, the 
cooperation objectives, and of the communication with other 
complementary systems respectively, gain other highlights, 
other priorities and other effects, in consequence, using other 
methods corresponding to other means, being well known that 
SIEA functions will be different from the total of functions of 
each component (treaty, agreement etc.), separately considered. 
In fact, the most useful information is the one that is referred - 
in view of being efficient - at the same time to physical, social, 
economic and administrative factors, restricted by the juridical 
ones, information that change in time and space. In addition, 
besides the complexity of the factors that we have to take into 
account, there also appears the speed in taking the adequate and 
relevant decision. Though, how can we solve such a challenge, 
especially since is addressed to the environment? How can be 
clarified the remaining ambiguities in applying the special 
principles concerning remote sensing? There are questions to 
which we have found, partially, an answer through geomatics 
techniques, starting form the spatial reference data; and there 
are questions that will find their answers completely through 
the elaboration and application of a normative document 
concerning remote sensing activity at international level. 
841 
1.2 Geomatics and hetero-interdisciplinary cooperation 
1.2.1 *Geomatics" concept: This concept refers to the 
scientific and technical activities field, comprising automated 
processing for geographical data, within which an important 
component is represented by remote sensing data for the Earth. 
The improvement of the existing technologies together with the 
integration — besides spatial data — of other data types 
(biological, geodetical, etc.) the geographical information 
systems (GIS) were used in various specific and general 
applications, in view of environment factors modeling and of 
"coverage" evaluations for some micro-regions. From the point 
of view of the operator as well as from that of the beneficiary, 
GIS techniques architecture has fully proved its functionality, 
reaching unforeseen performances. The benefits and effects of 
these techniques are extremely relevant: the benefit of 
extracting quick information; the effect of quality thematic 
information. 
1.2.2 The second rational "approach:  geosystems 
convergence: The geosystemic approach (GSA) takes into 
consideration a hetero-interdisciplinary cooperation between 
the different unrelated disciplines, cooperation that comprises 
many disciplines within a series of systems converging to a 
unique objective; besides the technical disciplines of the remote 
sensing system, disciplines specific to informatics system 
participate to this cooperation, without leaving aside the 
biological and sociological systems. In fact, the new approach 
facilitates prompt means (solutions), specialized and useful for 
environment administration or ecological reconstruction 
problems, among which we mention: 
- synoptic appraisal on environment; 
- reiteration of satellitary images; 
- data processing capacity and speed; 
- spatial modeling capacity; 
- validation of models for modification forecasting; 
- decisional models development. 
No doubt, remote sensing development brought multiple effect 
consequences in key-fields, at local, national and international 
level. According to some authors, the consequences are of 
technical, social, economic and politic range. They can be 
mainly illustrated as follows: 
e the possibility of enclosing, in a geosystemic 
approach, assuring coherence (from technical point of 
view) and facilitating the communication, according 
to this approach, among various structures of social 
life: technicians, administrative and politics decision- 
making persons (at social level); 
eo enlarging the group of those who are interested in 
using GIS integrated remote sensing as an instrument 
liable to increase the analysis capacity of bio-socio- 
geographical phenomena (at economic level); 
e expanding the remote sensing contribution at public 
and private sector level, through a sustained policy of 
profile specialists training (at political level). 
While in the initial and maturity phases of spatial remote 
sensing (experimental and operational respectively) there was 
demonstrated the value of spatial data insertion in different 
thematic GIS, in social practice, the models of interstate 
collaboration leave much to be desired. Especially it is about 
collaboration relationship among developing and industrialized 
countries, the latter being those who own remote sensing 
techniques. In this case, setting a collaboration was not easily 
and well done, but it continuously stressed out the problems 
arising from the balance between necessity (there is no question