Natural Environment Monitoring 2013, No 14, 79-85
DIFFERENTIATION OF DURATION AND THERMAL CONDITIONS OF THE VEGETATION SEASON IN THE BESKID MTS. AND CARPATHIAN FOOTHILL ON THE GLDAS DATABASE IN THE PERIOD 2001–2011
Witold Bochenek, Justyna Dedo, Wojciech Marczewski
The report presents an analysis of the duration of the vegetation season and the air temperature in the area of Beskid Mts. and Carpathian Foothills based on data collected by GLDAS (Global Land Data Assimilation System) database, with a resolution of 0.25 degree spatial and temporal – a month. The aim of the study was to evaluate the usefulness of the data from the Global Land Data Assimilation System (GLDAS) database, the determination of absolute values and trends of duration and average air temperature of the vegetation season. The average annual duration of the vegetation season in each „window” ranged from 165–239 days, demonstrating the diversity of the average annual values calculated for the total area of 214 (2003 and 2005) to 234 days (2008). The tendency of the elongation of the vegetation season is observed, especially thanks to „move to” the dates of its beginning. The average air temperature during the vegetation season in the study area closed between 10.3–14.2°C, the coldest vegetation season was in 2010 (12.7°C), while the warmest – in 2006 (13.8°C). The slight declining tendency (-0,05day/ year) is observed in the average air temperature during the vegetation season.