In this paper, we present results from an experiment in which we observed drought on the maize fields in NE Slovenia (fields of the Panvita Group, Murska Sobota) with multispectral Sentinel 2 satellite data and an Unmanned Aerial Vehicle (UAV) data. Irrigated and non-irrigated fields on two different soil types (fine textured and coarse textured) were included into the study. Remote sensing data from two seasons (2016, 2017) were integrated with ground-based measurements (soil water content, leaf area index, relative water content of plants, chlorophyll content and fluorescence, etc.). Field study was additionally supported by a controlled greenhouse experiment in which physiological response of maize to water deprivation was thoroughly studied. We discuss dynamics of drought – as revealed by integrated sensing approach – in regards to irrigation and soil texture.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 9044345With the intention to obtain information about user requirements in regards to monitoring drought conditions, we partnered with the DriDanube project, financed by the Regional Development Fund, and organized a national seminar Better prepared for drought. With the drought of 2018 as a showcase, we presented how the users can engage the Drought User Service for day-to-day monitoring of drought development, and discussed their proposals for functional and contextual enhancements. We were especially interested about their preferences for integration of high-resolution monitoring products. Forty participants attended the seminar. They were from the government (Ministry of agriculture, forestry and food, Ministry of the environment and spatial planning, Slovenian water Agency, Slovenian Environment Agency, Administration of the RS for Civil Protection and Disaster Relief, Chamber of Agriculture and Forestry of Slovenia), research institutes and the university (Slovenian forestry institute, Agricultural Institute of Slovenia, University of Ljubljana, Research Centre of the Slovenian Academy of Sciences and Arts), and from societies and companies (Slovenian Society for Irrigation and Drainage, TC Vode d.o.o., Space-SI, Water bureau Maribor).
F.18 Transfer of new know-how to direct users (seminars, fora, conferences)
COBISS.SI-ID: 46112045As part of his visit to the University of Sarajevo, on 2 October 2019, Žiga Kokalj gave a lecture entitled Satellite data and agricultural drought conditions. He described the characteristics of drought around the world and especially in Slovenia, and presented practical experience in obtaining data about vegetation condition with satellite systems. He outlined the significance of different spatial and temporal resolutions, and explained vegetation indices and their calculation and significance. He also presented the design of an automatic drought detection system based on machine learning and satellite data and the Drought User Service, an online tool for drought monitoring. Žiga Kokalj also demonstrated the usefulness of satellite data for drought monitoring in a lecture entitled Remote sensing for a better future, held at the University of Tulane in New Orleans (USA), on 6 December 2019.
B.04 Guest lecture
COBISS.SI-ID: 45179949