Abstract
Topoclimate depends on specifically local-scale climatic features caused by the interrelations between topography, water, soil, and land cover. The main purpose of this study is to identify, characterize, and delimit the range of topoclimate types at the Drawa National Park (DPN) and to estimate their accuracy while taking into consideration the thermal conditions of the land surface. Based on a set of digital maps, and with the use of the heat-balance Paszyński method, seven types of topoclimate were distinguished. Next, with the use of Landsat 8 and Terra satellite images, the DPN’s land surface temperature (LST) was calculated. The estimation of LST using the distinguished types of topoclimate allowed for determining their degree of quantity diversification as well as assessing the differences between those types. The obtained LST values indicated statistically significant differences between the medians of LST values for almost all of the distinguished topoclimate types, thereby confirming the suitability of the applied topoclimate determination procedure.
Highlights
The concept of topoclimate is discerned between those of the mesoclimate and the microclimate (Paszyński et al 1999)
Similar studies were conducted in England and Wales by Jarvis and Stuart (2001) and in Italy’s Emilia-Romagna region by Zinoni et al (2002)
The objective of the present study is to distinguish the topoclimate types occurring in the Drawa National Park (DNP) so as to determine their spatial scope and degree of differentiation; and to estimate the accuracy of the adopted procedure for designating topoclimates that applies the Paszyński method in conjunction with land surface temperature (LST) analysis
Summary
The concept of topoclimate is discerned between those of the mesoclimate and the microclimate (Paszyński et al 1999). It makes it possible to plant crops in order—for example—to avoid losses connected with light freezes (Huang 1991; Kerdiles et al 1996; Francois et al 1999; Jarvis and Stuart 2001; Zinoni et al 2002). One of them has presented growing degree-days, as well as other soil types These maps have made it possible to determine the risk of occurrence of light freezes which are harmful to crops (South 2000; Richards and Baumgarten 2003). Landform and land cover have had a decisive influence on their occurrence
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