TY - JOUR AU - Farkas, Gábor TI - Possibilities of using raster data in client-side web maps JF - TRANSACTIONS IN GIS J2 - TRANS IN GIS VL - 24 PY - 2020 IS - 1 SP - 72 EP - 84 PG - 13 SN - 1361-1682 DO - 10.1111/tgis.12588 UR - https://m2.mtmt.hu/api/publication/30868438 ID - 30868438 N1 - Funding Agency and Grant Number: Emberi Eroforrasok Miniszteriuma [UNKP-17-3-I]; European Social FundEuropean Social Fund (ESF) [EFOP-3.6.1.-16-2016-00004] Funding text: Emberi Eroforrasok Miniszteriuma, Grant/Award Number: UNKP-17-3-I; European Social Fund, Grant/Award Number: EFOP-3.6.1.-16-2016-00004 Export Date: 5 November 2019 CODEN: TRGIF Correspondence Address: Farkas, G.; Department of Cartography and Geoinformatics, University of PécsHungary; email: gfarkas@gamma.ttk.pte.hu LA - English DB - MTMT ER - TY - JOUR AU - Hervai, András AU - Farics, Éva AU - Sisák, István AU - Farkas, Gábor AU - Kovács, János AU - Lóczy, Dénes TI - Influence of Flood Waves, Production Wells, and Precipitation on Shallow Groundwater Using a Linear Regression Model Approach Based on a Case Study of Mohács Island, Hungary JF - WATER J2 - WATER-SUI VL - 12 PY - 2020 IS - 5 PG - 22 SN - 2073-4441 DO - 10.3390/W12051359 UR - https://m2.mtmt.hu/api/publication/31310576 ID - 31310576 AB - Studying the relationship between river water and shallow groundwater (SGW) during flood events is a research topic receiving increasing attention for many reasons. This phenomenon was studied with respect to Mohács Island of the Danube (Hungary) in an area protected by a levee. Floods only infiltrate into the island through the aquifer, where production wells for drinking water supply are located. Our objective was to reveal how the Danube and water abstraction from production wells control groundwater levels in the observation wells, and we also studied the effect of the precipitation events and the lag times of the influencing variables compared to the peak of groundwater waves in observation wells. The effects of these factors were summarized by a linear regression model (LM) with lag times. We developed an application because we had time-series for thirty groundwater wells and five major flood events of the Danube. Kriging was used to generate impact maps of the Danube and production wells. A propagation map of the Danube flood wave into the groundwater aquifer was also generated. We used geological information to explain the findings that the river flood waves propagate with the same wavelength and decreasing amplitude in the covered aquifer and with an elongated wavelength in uncovered conditions. LA - English DB - MTMT ER - TY - JOUR AU - Farkas, Gábor TI - Hardware-Accelerating 2D Web Maps: A Case Study JF - CARTOGRAPHICA: THE INTERNATIONAL JOURNAL FOR GEOGRAPHIC INFORMATION AND GEOVISUALIZATION J2 - CARTOGRAPHICA VL - 54 PY - 2019 IS - 4 SP - 245 EP - 260 PG - 16 SN - 0317-7173 DO - 10.3138/cart.54.4.2018-0014 UR - https://m2.mtmt.hu/api/publication/30954821 ID - 30954821 N1 - Funding Agency and Grant Number: European Union - European Social Fund [EFOP-3.6.1.-16-2016-00004] Funding text: The project has been supported by the European Union, co-financed by European Social Fund Grant EFOP-3.6.1.-16-2016-00004, entitled by Comprehensive Development for Implementing Smart Specialization Strategies at the University of Pecs. The author would like to express his personal gratitude to all of the reviewers of this article. From the numerous constructive critiques received, this paper was shaped to its current, greatly enhanced form. The author would especially like to thank one anonymous reviewer, who took the time to manually outline errors and leave a great number of comments on a printed draft LA - English DB - MTMT ER - TY - CHAP AU - Bugya, Titusz AU - Farkas, Gábor ED - Cédric, Grueau ED - Robert, Laurini ED - Lemonia, Ragia TI - An Alternative Raster Display Model T2 - Proceedings of the 4th International Conference on Geographical Information Systems Theory, Applications and Management PB - Institute for Systems and Technologies of Information, Control and Communication (INSTICC) CY - [s.l.] SN - 9789897582943 PY - 2018 SP - 262 EP - 268 PG - 7 DO - 10.5220/0006762402620268 UR - https://m2.mtmt.hu/api/publication/3353465 ID - 3353465 LA - English DB - MTMT ER - TY - CHAP AU - Farkas, Gábor ED - Molnár, Vanda TI - Towards visualizing coverage data on the Web T2 - Az elmélet és a gyakorlat találkozása a térinformatikában IX. PB - Debreceni Egyetemi Kiadó CY - Debrecen SN - 9789633187234 PY - 2018 SP - 107 EP - 113 PG - 7 UR - https://m2.mtmt.hu/api/publication/3379149 ID - 3379149 LA - English DB - MTMT ER - TY - BOOK AU - Farkas, Gábor TI - Practical GIS ET - 0 PB - Packt Publishing CY - Birmingham PY - 2017 SP - 372 SN - 9781787123328 UR - https://m2.mtmt.hu/api/publication/3221456 ID - 3221456 N1 - ISBN-10: 1787123324 LA - English DB - MTMT ER - TY - JOUR AU - Farkas, Gábor TI - Applicability of open-source web mapping libraries for building massive Web GIS clients JF - JOURNAL OF GEOGRAPHICAL SYSTEMS J2 - J GEOGR SYST VL - 19 PY - 2017 IS - 3 SP - 273 EP - 295 PG - 23 SN - 1435-5930 DO - 10.1007/s10109-017-0248-z UR - https://m2.mtmt.hu/api/publication/3210052 ID - 3210052 LA - English DB - MTMT ER - TY - BOOK AU - Farkas, Gábor TI - Mastering OpenLayers 3 ET - 0 PB - Packt Publishing CY - Birmingham PY - 2016 SP - 285 SN - 9781785281006 UR - https://m2.mtmt.hu/api/publication/3072078 ID - 3072078 LA - English DB - MTMT ER - TY - CHAP AU - Farkas, Gábor ED - Balázs, Boglárka TI - Egy általános célú szabad forrású Web GIS lehetőségei T2 - Az elmélet és a gyakorlat találkozása a térinformatikában VII. = Theory meets practice in GIS PB - Debreceni Egyetemi Kiadó CY - Debrecen SN - 9789633185704 PY - 2016 SP - 145 EP - 151 PG - 7 UR - https://m2.mtmt.hu/api/publication/3072029 ID - 3072029 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Farkas, Gábor TI - Normalizált indexek alkalmazhatósága automatikus területi klasszifikációhoz Magyarországon Baranya megye példáján JF - TERMÉSZETFÖLDRAJZI KÖZLEMÉNYEK A PÉCSI TUDOMÁNYEGYETEM FÖLDRAJZI INTÉZETÉBŐL J2 - TERMÉSZETFÖLDRAJZI KÖZLEMÉNYEK (PÉCS) VL - 2015 PY - 2015 IS - 1 SP - 13 EP - 21 PG - 9 SN - 2063-4153 DO - 10.17799/2015.1.13 UR - https://m2.mtmt.hu/api/publication/3202914 ID - 3202914 LA - Hungarian DB - MTMT ER -