Prediction of slushflow hazard based on data from local meteorological stations
Seeking objective criteria for slushflow prediction and warning, meteorological data has been recorded at two slushflow sites in Rana District, North Norway, during a 10 years period. The two starting zones were equipped with standard meteorological devices. In addition, the fluctuation of water lev...
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ftngi:oai:ngi.brage.unit.no:11250/3084104 2023-10-09T21:54:16+02:00 Prediction of slushflow hazard based on data from local meteorological stations Bakkehøi, Steinar Hestnes, Erik 2008 application/pdf https://hdl.handle.net/11250/3084104 eng eng Montana State University Library The International Snow Science Workshop (ISSW) Proceedings; https://hdl.handle.net/11250/3084104 660-663 (4s) Snøskred-FoU Avalanche-RnD Chapter 2008 ftngi 2023-09-20T22:48:33Z Seeking objective criteria for slushflow prediction and warning, meteorological data has been recorded at two slushflow sites in Rana District, North Norway, during a 10 years period. The two starting zones were equipped with standard meteorological devices. In addition, the fluctuation of water level in snowpack was monitored by pressure transmitters. The measurements were performed automatically every ten minutes. Within a distance of 20 km from the slushflow sites there are one standard climatological station and two precipitation stations. One of the main topics of the research project is to evaluate the possibility of using neighbouring meteorological stations in the prediction of current slushflow hazard and slushflow releases. Correlation of in situ measurements with records from the local meteorological stations is the basic input to the evaluation. The analysis has documented that observations at the meteorological stations can be used as a base for predicting slushflow hazard in the Rana District. The temperature and humidity are well correlated in slushflow situations while the wind speed and precipitation measurements had to be adjusted by simple models taking into account topographic characteristics, distance and elevation differences. Generally, the result indicates that slushflow prediction might be based on observations at local meteorological stations if the necessary models for parameter transformation are established. Article in Journal/Newspaper North Norway Norwegian Geotechnical Institute (NGI) Digital Archive Norway |
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Open Polar |
collection |
Norwegian Geotechnical Institute (NGI) Digital Archive |
op_collection_id |
ftngi |
language |
English |
topic |
Snøskred-FoU Avalanche-RnD |
spellingShingle |
Snøskred-FoU Avalanche-RnD Bakkehøi, Steinar Hestnes, Erik Prediction of slushflow hazard based on data from local meteorological stations |
topic_facet |
Snøskred-FoU Avalanche-RnD |
description |
Seeking objective criteria for slushflow prediction and warning, meteorological data has been recorded at two slushflow sites in Rana District, North Norway, during a 10 years period. The two starting zones were equipped with standard meteorological devices. In addition, the fluctuation of water level in snowpack was monitored by pressure transmitters. The measurements were performed automatically every ten minutes. Within a distance of 20 km from the slushflow sites there are one standard climatological station and two precipitation stations. One of the main topics of the research project is to evaluate the possibility of using neighbouring meteorological stations in the prediction of current slushflow hazard and slushflow releases. Correlation of in situ measurements with records from the local meteorological stations is the basic input to the evaluation. The analysis has documented that observations at the meteorological stations can be used as a base for predicting slushflow hazard in the Rana District. The temperature and humidity are well correlated in slushflow situations while the wind speed and precipitation measurements had to be adjusted by simple models taking into account topographic characteristics, distance and elevation differences. Generally, the result indicates that slushflow prediction might be based on observations at local meteorological stations if the necessary models for parameter transformation are established. |
format |
Article in Journal/Newspaper |
author |
Bakkehøi, Steinar Hestnes, Erik |
author_facet |
Bakkehøi, Steinar Hestnes, Erik |
author_sort |
Bakkehøi, Steinar |
title |
Prediction of slushflow hazard based on data from local meteorological stations |
title_short |
Prediction of slushflow hazard based on data from local meteorological stations |
title_full |
Prediction of slushflow hazard based on data from local meteorological stations |
title_fullStr |
Prediction of slushflow hazard based on data from local meteorological stations |
title_full_unstemmed |
Prediction of slushflow hazard based on data from local meteorological stations |
title_sort |
prediction of slushflow hazard based on data from local meteorological stations |
publisher |
Montana State University Library |
publishDate |
2008 |
url |
https://hdl.handle.net/11250/3084104 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
North Norway |
genre_facet |
North Norway |
op_source |
660-663 (4s) |
op_relation |
The International Snow Science Workshop (ISSW) Proceedings; https://hdl.handle.net/11250/3084104 |
_version_ |
1779317789340729344 |