Estimation of hourly snowmelt by the heat balance method using JMA data and application for analyzing groundwater level fluctuation of a landslide

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  • 熱収支法に基づく気象庁観測データを用いた時間融雪水量の推定と地すべり地の地下水位変動解析への適用
  • ネツ シュウシホウ ニ モトズク キショウチョウ カンソク データ オ モチイタ ジカン ユウセツ スイリョウ ノ スイテイ ト ジスベリチ ノ チカ スイイ ヘンドウ カイセキ エ ノ テキヨウ

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Abstract

<p>  Although many previous studies have proposed methods for estimating snowmelt based on the heat balance method using generally observed weather data, few studies have proposed method for estimating the hourly snowmelt and applied for analyzing groundwater level fluctuation in a landslide site. This study developed a model for calculating the hourly snowmelt based on the heat balance method using the Japan Meteorological Agency (JMA) observation data alone and the hourly meltwater and/or rainwater (MR). We applied the model to snow-covered region and analyzed the hourly groundwater level fluctuation in a landslide site. The results suggested that MR and groundwater level fluctuation can successfully be reproduced.</p>

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