Item: SNOW DATA MANAGEMENT WITH THE USAGE OF GEOGRAPHICAL INFORMATION SYSTEM
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Title: SNOW DATA MANAGEMENT WITH THE USAGE OF GEOGRAPHICAL INFORMATION SYSTEM
Proceedings: International Snow Science Workshop 2024, Tromsø, Norway
Authors:
- Veronika Sustkova [ Czech Hydrometeorological Institute, Department of Meteorology and Climatology Ostrava, Czech Republic ]
- Simon Bercha [ Czech Hydrometeorological Institute, Applied Hydrology Department Prague, Czech Republic ]
- Jan Jirak [ Czech Hydrometeorological Institute, Applied Hydrology Department Jablonec nad Nisou, Czech Republic ]
Date: 2024-09-23
Abstract: Our paper represents a review of the role of Geographical Information Systems (GIS) in Snow data management in the Czech Hydrometeorological Institute (CHMI) by i) presenting and discussing methods and systems used to snow data collecting, evaluating, controlling and sharing, ii) reviewing methods used to spatial interpolation of point climate data and iii) the evaluation of water reserves in the snow cover using GIS. Snow cover and especially the snow water supplies are an important part of the hydrological balance of water quantity in the Czech Republic. Every assessment of climate and hydrological characteristics starts with data collection. CHMI has a sophisticated system based on manual station measurements of volunteer and professional observers and automatic stations. Manual snowpack measurements are still one of the most important inputs to the calculation due to their accuracy. In recent years, it is necessary to switch to methods (GIS) that allow data sharing from the field and are usable for further evaluation and control. Regular snow campaigns held on Mondays at various altitudes are used to determine the basic characteristics. Snow campaigns at the assumed maximum water snow value are used to refine hydrological models and to climate assessment of the winter season. Satellite imagery is used as an additional input to refine the snowpack distribution. Snow cover is naturally spatially variable and GIS is a useful solution and powerful management tool used for snow data management, analysing and displaying spatial data. CHMI regularly releases many snow products during the winter season, like snow depth and snow water equivalent maps. Detailed information of the snow water equivalent is also an essential part of improving input data for modelling flow forecasts throughout the winter season, including flood situations. GIS helps hydrologists and climatologist to inform public better about snow problematic using the highest sophisticated tools.
Object ID: ISSW2024_P5.11.pdf
Language of Article: English
Presenter(s): Veronika Sustkova, Simon Bercha, Jan Jirak
Keywords: Geographical Information System, Snow data management, Spatial interpolation, Snow water supplies, Automatic snow stations
Page Number(s): 686 - 693
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