{"title":"Future changes of snow-related variables in different European regions","authors":"A. Kis, R. Pongrácz","doi":"10.15201/hungeobull.72.1.1","DOIUrl":"https://doi.org/10.15201/hungeobull.72.1.1","url":null,"abstract":"Snow has an important role in the climate system and also has environmental, natural and socio-economic impacts. Temperature, precipitation, snow coverage, snow depth and snowmelt are analysed in this study for 1971–2099 based on EURO-CORDEX simulations. In order to measure uncertainty, three different scenarios (RCP2.6, RCP4.5, RCP8.5) and five different regional climate models are taken into account. The investigation focuses on eight regions, characterised by different climatic conditions (maritime, continental, boreal). Relative changes of the selected parameters are calculated for 2021–2050 and 2069–2098 compared to 1971–2000 reference period, in addition to the evaluation of the simulated reference. The relative role of the three main uncertainty factors (internal climatic variability, model selection, and used scenario) is also analysed. According to our results, model selection and internal variability possess the most important roles. Based on the multi-model mean, annual mean temperature and precipitation total will increase, the snow cover period will become shorter (the higher the radiative forcing change in the scenario, the greater the decrease), and the snowmelt process is likely to occur earlier in the northern region. Thus, the warming trend seems to have a greater effect on the snow-related variables than increasing precipitation trends. These projected changes may have a huge impact on winter tourism and sports, hence, appropriate adaptation strategies will be crucial.","PeriodicalId":38149,"journal":{"name":"Hungarian Geographical Bulletin","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44511963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Palmer-type soil modelling for evapotranspiration in different climatic regions of Kenya","authors":"P. Musyimi, B. Székely, Arun Gandhi, T. Weidinger","doi":"10.15201/hungeobull.71.4.4","DOIUrl":"https://doi.org/10.15201/hungeobull.71.4.4","url":null,"abstract":"Reference evapotranspiration (ET0) and real evapotranspiration (ET) are vital components in hydrological processes and climate-related studies. Understanding their variability in estimation is equally crucial for micro-meteorology and agricultural planning processes. The primary goal of this study was to analyze and compare estimates of (ET0) and (ET) from two different climatic regions of Kenya using long-term quality controlled synoptic station datasets from 2000 to 2009 with 3-hour time resolution. One weather station (Voi, 63793) was sought from lowlands with an elevation of 579 m and characterized by tropical savannah climate while the other (Kitale, 63661) was sought from Kenya highlands with humid conditions and elevation of 1850 m above sea level. Reference evapotranspiration was calculated based on the FAO 56 standard methodology of a daily basis. One dimension Palmer-type soil model was used for estimating of real evapotranspiration using the wilting point, field capacity, and soil saturation point for each station at 1 m deep soil layer. The ratio of real and reference evapotranspiration dependent on the soil moisture stress linearly. Calculations of estimated evapotranspiration were made on daily and monthly basis. Applications of the site-specific crop coefficients (KC) were also used. The result indicated that the differences among daily and monthly scale calculations of evapotranspiration (ET) were small without and with an application of crop coefficients (ETKc). This was due to high temperatures, global radiation, and also high soil moisture stress due to inadequate precipitation experienced in the tropics where Kenya lies. Results from Voi showed that mean monthly ET0 ranged from 148.3±11.6 mm in November to 175.3±10.8 mm in March while ET was from 8.0±4.5 mm in September to 105.8±50.3 mm in January. From Kitale, ET0 ranged from 121.5±8.5 mm/month in June to 157.1±8.5 mm/month in March while ET ranged from 41.7±32.6 mm/month in March to 126.6±12.2 mm/month in September. This was due to variability in temperature and precipitation between the two climatic regions. The study concludes that ET0 and calculated evapotranspiration variability among the years on a monthly scale is slightly higher in arid and semi-arid climate regions than in humid regions. The study is important in strategizing viable means to enhance optimal crop water use and reduce ET losses estimates for optimal agricultural yields and production maximization in Kenya.","PeriodicalId":38149,"journal":{"name":"Hungarian Geographical Bulletin","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47245773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Á. Csorba, A. Jones, T. Szegi, E. Dobos, E. Micheli
{"title":"The diagnostic continua of the soils of Europe","authors":"Á. Csorba, A. Jones, T. Szegi, E. Dobos, E. Micheli","doi":"10.15201/hungeobull.71.4.1","DOIUrl":"https://doi.org/10.15201/hungeobull.71.4.1","url":null,"abstract":"Diagnostic horizons, properties and materials are commonly applied building units of national and international soil classification systems. The presence, depth or absence of diagnostic information supports the process of objective soil classification, such as the World Reference Base (WRB). While the diagnostic units and associated descriptive qualifiers convey information that reflect pedogenesis, they also indicate important, and often complex properties that are related to soil fertility and other soil functions. The spatial extent or the continuum of diagnostic information is often different from the spatial extent of the mapping units in general soil maps (mostly reflecting soil types). This paper presents the spatial distribution of selected diagnostic units and qualifiers for the European Union and describes their significance for key soil functions. The derivation of selected diagnostics was performed based on the information provided in the European Soil Database and by taking into consideration the definitions, rules and allocation procedure of soils to the appropriate Reference Soil Group (RSG) defined by the WRB key. The definition of the presence/absence of the diagnostic units were performed by extracting information related to the first level of the WRB classification and to the qualifiers provided by the ESDB on the Soil Taxonomic Units (STU) level. The areal percentage of the STUs (thus, the derived diagnostics) within Soil Mapping Units (SMUs) was calculated and was visualized on separate maps. The study demonstrated the importance of the spatial information that the diagnostic elements convey, especially related to soil functions.","PeriodicalId":38149,"journal":{"name":"Hungarian Geographical Bulletin","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41835308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Transformations of place, memory and identity through urban place names in Banská Bystrica, Slovakia","authors":"A. Bitušíková","doi":"10.15201/hungeobull.71.4.6","DOIUrl":"https://doi.org/10.15201/hungeobull.71.4.6","url":null,"abstract":"The paper looks at the renaming of streets as a significant aspect of post-socialist change using an example of the city of Banská Bystrica, Slovakia. It discusses politics, processes and practices of (de-re)commemoration in street names, which reflect transformations of memory (remembering and forgetting), identity, heritage, power and resilience related to public space in a post-socialist city. Changing street names creates new connections between the past and the present and reflects political power struggles for control over contested space between various groups that tend to privatise their own history, heritage, memory, identity, places and symbols. The case of Banská Bystrica demonstrates strategies of the street renaming based on the decommunisation of names (done by restoration of the names from older periods or by introducing non-commemorative names), and on commemoration of names based primarily on local (or regional/national) heritage, events and personalities that might become areas of contested heritage.","PeriodicalId":38149,"journal":{"name":"Hungarian Geographical Bulletin","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41640379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Surya, A. Salim, Haeruddin Saleh, S. Suriani, Kafrawi Yunus, Patmawaty Taibe
{"title":"Population mobility and urban transport management: perspectives environmental quality degradation and sustainable development of suburban Makassar City, Indonesia","authors":"B. Surya, A. Salim, Haeruddin Saleh, S. Suriani, Kafrawi Yunus, Patmawaty Taibe","doi":"10.15201/hungeobull.71.4.5","DOIUrl":"https://doi.org/10.15201/hungeobull.71.4.5","url":null,"abstract":"The expansion of the area towards suburban areas accompanied by suburbanization has an impact on the conversion of productive agricultural land and transportation movement systems. This study aims to analyse land use change works as a determinant of environmental degradation in suburban areas, the effect of land use changes, socio-economic activities, population mobility and transportation systems on environmental quality degradation, and models for handling land use, population mobility, transportation infrastructure and system management transportation towards sustainable development of suburban areas. This study uses a sequential qualitative-quantitative approach. Data obtained through observation, survey and documentation. The results of the study show that the intensity of land use change coupled with population mobility, in addition to affecting the urban transportation system based on the pattern of origin and destination of travel, also has an impact on the environmental quality degradation of suburban areas. Changes in land use, socioeconomic activities, population mobility and transportation systems has an effect in the environmental quality degradation of suburban areas with a coefficient of determination of 95.65 percent. This study recommends the application of a land use management model, population mobility, and transportation infrastructure towards the sustainability of the suburbs of Makassar City, Indonesia.","PeriodicalId":38149,"journal":{"name":"Hungarian Geographical Bulletin","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44254639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Projected values of thermal and precipitation climate indices for the broader Carpathian region based on EURO-CORDEX simulations","authors":"N. Skarbit, J. Unger, T. Gál","doi":"10.15201/hungeobull.71.4.2","DOIUrl":"https://doi.org/10.15201/hungeobull.71.4.2","url":null,"abstract":"Since our climate is in a rapid changing phase, it is crucial to get information about the regional patterns of basic climatic parameters and indices. The EURO-CORDEX project provides high quality regional climate model outputs, but these raw datasets are not convenient for the application in wider geoscience studies. According to the authors’ knowledge, there is a lack in published spatial information about basic climate parameters and indices in Central-Europe and especially in the broader Carpathian region therefore the basic aim of this study to fill this gap. The study presents the future trends in daily air temperature and precipitation and various climatic indices in the broader Carpathian Basin region during the 21st century. The indices are calculated using multi-model average temperature and precipitation data from EURO-CORDEX model simulations for the future time periods (2021–2050, 2071–2100) and emission scenarios (RCP4.5, RCP8.5). The indices present the future trends of the heat load, energy demand as well as extreme precipitation and drought characteristics. Based on the results the temperature increase is obvious and the heat load and energy demand quantifying indices follow the temperature trend. However, the trend is difficult to evaluate in case of precipitation. The changes in the precipitation and the related indices can be considered small and appear within the regions. The future changes are the most considerable in the Carpathian Basin, but the entire examined region faces crucial changes in the following decades.","PeriodicalId":38149,"journal":{"name":"Hungarian Geographical Bulletin","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46936664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Predicting the future land-use change and evaluating the change in landscape pattern in Binh Duong province, Vietnam","authors":"Dang Hung Bui, L. Mucsi","doi":"10.15201/hungeobull.71.4.3","DOIUrl":"https://doi.org/10.15201/hungeobull.71.4.3","url":null,"abstract":"The main purpose of this study is to simulate future land use up to 2030 and to evaluate the change in landscape pattern due to land-use change from 1995 to 2030 in Binh Duong province, Vietnam. Land-use maps generated from multi-temporal Landsat images from 1995 to 2020 and various physical and social driving variables were used as inputs. Markov chain and Decision Forest algorithm integrated in Land Change Modeler application of IDRISI software were used to predict quantity and location of future land-use allocation. Meanwhile, FRAGSTATS software was used to calculate landscape metrics at class and landscape levels. The simulation results showed that there will be 253.8 km2 of agricultural land urbanized in the period from 2020 to 2030. The urban areas will gradually expand from the edge of the existing zones and fill the newly planned areas from South to North and Northeast of the province. The results also revealed that the studied landscape was decreasing in dominance and increasing diversity and heterogeneity at landscape level. The processes of dispersion and aggregation were taking place at the same time in the entire landscape and in the urban class. Meanwhile, the classes of agriculture, mining, and greenspace were increasingly dispersed, but the shape of patches was becoming more regular. The water class increased the dispersion and the irregularity of the patch shape. Finally, the landscape metrics of the unused land fluctuated over time.","PeriodicalId":38149,"journal":{"name":"Hungarian Geographical Bulletin","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44586713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Kolcsár, Á. K. Csete, A. Kovács-Győri, P. Szilassi
{"title":"Age-group-based evaluation of residents’ urban green space provision: Szeged, Hungary. A case study","authors":"R. Kolcsár, Á. K. Csete, A. Kovács-Győri, P. Szilassi","doi":"10.15201/hungeobull.71.3.3","DOIUrl":"https://doi.org/10.15201/hungeobull.71.3.3","url":null,"abstract":"Analysis of urban green space (UGS) provision is becoming increasingly important from an urban-planning perspective, as processes related to climate change tend to worsen the urban heat-island effect. In the present study, we aimed to map the UGS provision of Szeged, Hungary, using a GIS-based complex approach. Different age groups, especially the elderly, have different demands on the ecosystem services and infrastructure of UGSs. To provide an in-depth assessment of UGS provision for planners, we analysed the UGS availability and accessibility, using subblock-level population data, which includes not only the total number of residents but also provides information about the age-group distribution for each building of the city. We delineated areas having different UGS provision levels (called provision zones) and assessed the age distribution of the residents living in each zone. We found that the residents within 2-min walking distance to public green spaces are older than expected by comparison to the age distribution of Szeged. In provision zones with abundant locally available UGSs (measured as UGS per capita within 50-m buffers), we found that the youngest (0–18 years) and oldest (≥ 61 years) inhabitants are overrepresented age groups, while the age group 19–40 has the lowest overall UGS provision within the city of Szeged. Our research, which has the potential to be adapted to other settlements, contributes to the identification of UGS-deficit areas in a city, thereby providing essential information for urban planners about where increases in UGS are most needed and helping to assess infrastructural enhancements that would be adequate for the locally most-dominant age groups.","PeriodicalId":38149,"journal":{"name":"Hungarian Geographical Bulletin","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41687319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}