Optimal grid resolution for precipitation maps from commercial microwave link networks

Autor: R. (C. Z. ). van de Beek, J. Olsson, J. Andersson
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Advances in Science and Research, Vol 17, Pp 79-85 (2020)
Druh dokumentu: article
ISSN: 1992-0628
1992-0636
DOI: 10.5194/asr-17-79-2020
Popis: High-resolution precipitation observation based on signal attenuation in a Commercial Microwave Link (CML) network is an emerging technique that is becoming more and more used. Commonly, the raw data – line measurements from successive time steps – are mapped onto a grid to estimate precipitation fields with a full spatio-temporal coverage. Assuming the CML-estimated precipitation to be accurate, the attainable resolutions in time and space are primarily dependent on two factors: (i) the spatial distribution of the link network and (ii) the spatial correlation properties of the precipitation. Here we outline a pragmatic method for estimating the optimal resolution based on variogram analysis. The method is demonstrated using a CML network and a representative variogram in Stockholm, Sweden. Conceivable applications include preliminary investigations in cities considering starting CML-based precipitation observations.
Databáze: Directory of Open Access Journals
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