| Autor: |
JÁNOS, UNGER, ENIKŐ, LELOVICS, TAMAS, GÁL, LÁSZLÓ, MUCSI |
| Předmět: |
|
| Zdroj: |
Földrajzi Közlemények; 2014, Vol. 138 Issue 1, p50-63, 14p |
| Abstrakt: |
In this study first we presented the new Local Climate Zones (LCZ) classification system which reflects the climatic characteristics of the surfaces as well as its types and aspects of their separation based on quantified parameters. Secondly, we developed GIS methods which calculate these parameters for given areas. The database for these methods contains topographic map, 3D building and 2D road databases, as well as remotely sensed information from RapidEye satellite image. Thirdly, we determined the LCZ types occurring in the urbanized area of Sze- ged and represented by circle areas with a diameter of 250 m. As a final step, we compared their thermal reactions based on the earlier temperature measurement campaigns carried out in this city. As a result, six built-up and one land cover LCZ types were distinguished in the studied urban area. Clear temperature differences occurred between these types, very significant on the day with favorable (calm and clear) weather conditions and they were more moderate using annual averages. These comparisons confirmed the usefulness of these type of classification: the thermal influence of any change or difference in landscapes are better expressed using LCZ difference concept than a simple but generally not clear urban-rural approach, and additionally, it provides an opportunity for intra- and inter-urban comparisons. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
