National Repository of Grey Literature 27 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Methodology of thematic mapping of environmental phenomena by remote sensing methods
Řeřicha, Jaroslav ; Suchánek, Zdeněk ; Krhovský, Jan
The general methodology of conducting thematic mapping works using remote sensing methods is based on the authors' experience with the task of “Supporting Inventory of Contaminated Sites by Remote Sensing Methods” within the National Stake Inventory Inventory Stage 2 (NIKM2) works. Identification and location of possible sites, resp. objects of interest with probable contamination by distance methods (“contaminated site clues”) represent an important part of the methodology of contaminated sites inventory and fill approximately 50% of the input to the database of sites for inventory. A concrete example of the project (case study) “Mapping the distribution of indications of contaminated sites in the Czech Republic” illustrates the applicability of the developed methodology.
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Methodology of thematic mapping of environmental phenomena by remote sensing methods
Řeřicha, Jaroslav ; Suchánek, Zdeněk ; Krhovský, Jan
The general methodology of conducting thematic mapping works using remote sensing methods is based on the authors' experience with the task of “Supporting Inventory of Contaminated Sites by Remote Sensing Methods” within the National Stake Inventory Inventory Stage 2 (NIKM2) works. Identification and location of possible sites, resp. objects of interest with probable contamination by distance methods (“contaminated site clues”) represent an important part of the methodology of contaminated sites inventory and fill approximately 50% of the input to the database of sites for inventory. A concrete example of the project (case study) “Mapping the distribution of indications of contaminated sites in the Czech Republic” illustrates the applicability of the developed methodology.
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Distribution of identified clues of contaminated sites in the Czech Republic
Suchánek, Zdeněk ; Řeřicha, Jaroslav ; Krhovský, Jan
The project of Phase 2 of the National Inventory of Contaminated Sites (NIKM 2) includes the preparation of geographical data. The initial and main task of this part of the project is to acquire the finding database using remote sensing methods. During the first 16 months of the NIKM 2 project, a thematic layer of 14 different types of contaminated site (CS) clues (indicia), respectively of potentially contaminated sites (PCS) clues, was created by interpreting photomaps and other geographical data. The works of 12 CENIA interpreters were carried out in the environment of the geographic information system QGIS. Interpretation of remote sensing data revealed 34,666 clues in the first phase of interpretation. The primary finding database was further revised in order to objectify and standardize its content. The number of valid clues was thus reduced by about half. Thematic classification of the indices enabled a subsequent statistical evaluation, which serves as a basis for the optimization of the field survey, i.e. for the planning of the area inventory taking into account the character of the territory. From the evaluation of the collected data we can also consider the effectiveness of regulations and measures of local authorities and the link to the socio-economic, resp. demographic indicators, etc. The graphical and tabular outputs document the spatial links of the identified contaminated site indications and are the basis for the next phases of providing geographical support for the inventory work of the NIKM 2 project in 2019-2021.Uh
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Actual state of contaminated sites collection based on remote sense methods in launched NIKM 2 project
Suchánek, Zdeněk ; Řeřicha, Jaroslav
In the first year of implementation of the National Inventory of Contaminated Sites (NIKM 2) project (2018-2021), the task of interpretation of the indications of contaminated sites by Remote Sensing is addressed. The methodology was developed in NIKM 1 project (2009-2012). A total of 12 CENIA´s specialists systematically pass through the territory of the Czech Republic and record the indications (signs) of contaminated sites by interpreting raster data (orthophotomaps, topographic maps, digital relief model - DMR5 etc.). The first step was to complete the knowledge base of expressions of interest objects and to refine their typology (14 types of indicia) in the form of an interpretation key (manual). The task is solved in the QGIS sw tool (freeware). For the team, a single interactive map composition has been created including the possibility of adding additional cartographic works according to current and individual needs. Workflow monitoring allows iterations of methodological knowledge to manage next work phases and statistics of interpretation results. On the basis of already performed interpretation works on an area of about 6000 km2 in 19 municipalities with extended competence, the types and numbers of indications with the knowledge from NIKM stage 1 are compared and data for the continuation of works are obtained. On the basis of the initial experience, an interpretation methodology was slightly modified. The finer differentiation of some types of interest objects and the inclusion of new map data are intended to create a better and more informative basis for field surveys. Compared to the results of the interpretation of the indices in the test areas of the first stage of NIKM, the number of indications in the majority of previously only sporadically detected types of indications increased unequivocally.
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Specification of the methodology for the review of clues of contaminated sites obtained with the use of remote sensing
Suchánek, Zdeněk ; Řeřicha, Jaroslav ; Krhovský, Jan
In the initial phase of the 2nd stage of the National Inventory of Contaminated Sites (NIKM), we are focusing on the collection of clues of contaminated sites using Remote Sensing methods. Looking over the first batch (about 38,7 % of the territory is evaluated) of data recorded in the ORPs ("small districts“), we set the details of the methodology for the 2nd degree of interpretation of the clues, i.e. for the review of the data from the 1st degree of interpretation. Four reviewers (review interpreters) are involved in the review of the clues interpreted by twelve 1st degree evaluators. A simulation of three kinds of approaches to the interpretation was done in one “average” ORP. A considerable part of the clues from the 1st stage of interpretation was eliminated via unification in the case of multiplied clues, or deleted in the case of misinterpretation and/or of their little importance or insignificant interpreted volume. In some cases, retyping was applied. Final selection of clues is considered to be the result of the standardized approach of the reviewers. Comments from the discussion forms a set of recommendations for the review process.
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Novinky v oblasti norem environmentálního managementu: Účetnictví a reporting udržitelného rozvoje (Sborník abstraktů z mezinárodní konference)
Suchánek, Zdeněk
Stav a vývoj ve skupině norem pro dobrovolné nástroje environmentálního managementu (rodina ISO 14000) je nahlížen z pohledu celkového vývoje mezinárodní standardizace (ISO, CEN). Poslední dvě desetiletí se počty a druhy standardizačních dokumentů v oblasti environmentálního managementu (Technický výbor ISO/TC 207) výrazně zvýšily.
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2 Suchánek, Zbyněk
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