ANALYSIS OF "HEAT ISLANDS" MONITORING PRINCIPLES

Abstract

The phenomenon of urban heat island and methods of its examination are studied in this work. The urban heat island (CHI) is determined by positive temperature anomaly located between build-up area and its surrounding. For detailed analysis of heat island of specific territory different methods can be used. Today there are 3 research methods that are often used: transformational, with help of observation network and remote sensing materials. The most promising is a method of analysis and de-coding of satellite data. The target of the work is analysis of temperature anomalies within the borders of Kyiv city with the help of remote sensing data (satellite data of Landsat missions). In this research initial materials were space images of satellites Landsat 7, Landsat 8. The build-up part of Kyiv territory is characterized by essential thermal anomalies. The last ones might be subject to long heating period during which certain thermodynamic regime was established: heat that comes through underground pipelines is dispersed by buildings and this is reflected on the temperatures map. With almost identical meteo-conditions of remote sensing data acquisition (but during different seasons and with different duration of heating season) it becomes possible to do quantitative evaluation of thermal anomaly that appears over the city. Introduction of additional data (such as information about weather-conditions, land use / land cover classification, results of radio-location studies, investigations of atmospheric phenomena and processes) will allow to develop unified and special methodologies designed both for thermal pollution control and for increase of energy efficiency of thermal networks and infrastructure of inhabited areas. Existing system of heat island monitoring does not provide conduction of systematic inspections of the territories in order to find temperature anomalies that may negatively impact ecology of urban environment and population health.