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气象站、粮仓和粮堆的温湿度相关性分析
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Correlation Analysis of Temperature and Humidity of Meteorological Station, Granary and Grain Pile
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    摘要:

    为提供精准的粮食仓储气象服务,保障粮食仓储安全,基于2017—2020年佳木斯地区三个粮库和当地气象台站的观测资料,利用数理统计方法,探索分析了台站和粮仓内外的温度、相对湿度及其相关性。结果表明:气象台站实时温度大多低于粮库仓外温度,二者呈同步震荡变化,差异较小,R在0.996以上,气象台站相对湿度高于粮库仓外相对湿度,二者基本呈一致变化,粮库的仓内相对湿度一般控制在70%以下;气象台站日最高温度与粮库仓内温度、表层最高粮温相关性较好,R达到0.90以上,仓温变化和表层最高粮温滞后于日最高气温变化分别约为1和30 d,气象台站日最高气温与仓温、表层最高粮温的回归方程均为正相关,随日最高气温的升高而升高,其他各层最高粮温受温度影响较小,根据回归方程预测仓温和各层最高粮温并得出高大平房仓仓储气象服务高温指标为28 ℃,通风降湿服务指标为低于70%。

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    In order to provide accurate meteorological services for grain storage and ensure the safety of grain storage, based on the grain situation data of three grain depot in Jiamusi and the observation data of local meteorological stations from 2017 to 2020, the temperature, relative humidity and their correlation inside and outside the station and the granary were explored and analyzed by using mathematical statistics method. The results showed that the real-time temperature of meteorological stations was mostly lower than that outside the granary, and the two showed synchronous oscillation changes with little difference. R was above 0.996. The relative humidity of meteorological stations was higher than that outside the granary, and the two basically showed consistent changes. The relative humidity inside the granary was generally controlled below 70%. The daily maximum temperature of meteorological stations had a good correlation with the temperature in the warehouse and the maximum grain temperature in the surface layer, and R reached above 0.90. The change of warehouse temperature and the maximum grain temperature in the surface layer lagged behind the change of daily maximum temperature for about 1 d and 30 d, respectively. The regression equations of the daily maximum temperature of meteorological stations with the warehouse temperature and the maximum grain temperature in the surface layer were all positively correlated, and increased with the increase of the daily maximum temperature. The maximum grain temperature in other layers was less affected by temperature. According to the regression equation, the warehouse temperature and the maximum grain temperature in each layer were predicted, and the high temperature index of meteorological service in large warehouses was 28 ℃, and the ventilation and humidity service index was less than 70%.

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褚春燕,孙桂玉,孙洪伟,姜丽霞,王晓明*.气象站、粮仓和粮堆的温湿度相关性分析[J].粮油食品科技,2022,30(2):207-213.

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  • 在线发布日期: 2022-03-24
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