Design of climate station network in mountain catchments

In the Jizera Mountains (Czech Republic) the density of climate station network was tested in relation to spatial data interpolation, and watershed management targets. Point weather data (precipitation, air temperature, humidity and wind velocity) were interpolated by the nearest neighbourhood (NN),...

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Bibliographic Details
Published in:Hungarian geographical bulletin 2012-04, Vol.61 (1), p.19-29
Main Authors: Křeček, Josef, Punčochář, Petr
Format: Article
Language:English
Subjects:
Air temperature
Catchments
Climate
climate station network
Density
Hypsometry
Meteorological data
mountain watershed
Mountains
potential evapotranspiration
precipitation
Root-mean-square errors
Spatial data
spatial data interpolation
Watershed management
Wind speed
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Summary:In the Jizera Mountains (Czech Republic) the density of climate station network was tested in relation to spatial data interpolation, and watershed management targets. Point weather data (precipitation, air temperature, humidity and wind velocity) were interpolated by the nearest neighbourhood (NN), inverse distance weighting (IDW), spline (SPL), hypsometric (HYP) and kriging (KRI) methods. The results were assessed by the root mean square error (RMSE). The interpolation effectiveness showed the following order: HYP, IDW, KRI, NN and SPL. The advantage of the hypsometric method was recognised, particularly, by providing reasonable outputs in marginal catchments of the region and outside of the main instrumented area. However, in case of a higher density of observation points (11 hectares per station), all interpolation methods manifested comparable and realistic outputs in the focused mountain watersheds.
ISSN:2064-5031
2064-5147