多時(shí)間尺度下黑龍江省1980—2014年干濕演變特征及主導(dǎo)因子分析

doi:10.3969/2019jms.0011

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多時(shí)間尺度下黑龍江省1980—2014年干濕演變特征及主導(dǎo)因子分析
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                        10.3969/2019jms.0011
                    
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中圖分類號(hào):P467
基金項(xiàng)目:江蘇省氣象局青年基金項(xiàng)目（KQ202016）；宿遷市科技支撐計(jì)劃項(xiàng)目（S201607）；江蘇省預(yù)報(bào)員專項(xiàng)（JSYBY201907）；江蘇省預(yù)報(bào)員專項(xiàng)（JSYBY201813）

Analysis of dry/wet evolution characteristics and dominant factors in Heilongjiang Province on multiple time scales from 1980 to 2014

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摘要:

利用黑龍江省1980—2014年28個(gè)氣象臺(tái)站常規(guī)觀測(cè)資料，計(jì)算得到全省的相對(duì)濕潤(rùn)度指數(shù)。運(yùn)用ArcGIS反距離權(quán)重空間插值法、趨勢(shì)系數(shù)及相關(guān)分析法對(duì)全省作物生長(zhǎng)季及各個(gè)季節(jié)干旱分布、干濕發(fā)展趨勢(shì)及主要影響因素進(jìn)行具體分析。結(jié)果表明：就相對(duì)濕潤(rùn)度指數(shù)年際分布而言，生長(zhǎng)季干旱主要集中在2000—2010年，夏季和秋季干旱主要集中在1995年之后，春季干旱則在全時(shí)段均有發(fā)生，其中重旱和特旱居多；就相對(duì)濕潤(rùn)度指數(shù)變化趨勢(shì)而言，春季全省整體呈微濕潤(rùn)化的趨勢(shì)，冬季呈顯著地濕潤(rùn)化發(fā)展趨勢(shì)，其余時(shí)段則呈現(xiàn)干旱化發(fā)展，但不同時(shí)段空間差異顯著；分析降雨量、潛在蒸散量與相對(duì)濕潤(rùn)度指數(shù)的相關(guān)系數(shù)發(fā)現(xiàn)，降雨量始終是黑龍江省生長(zhǎng)季及各個(gè)季節(jié)相對(duì)濕潤(rùn)度指數(shù)變化的主導(dǎo)因子，但夏季潛在蒸散量的影響有所增加。

Abstract:

The relative humidity index of Heilongjiang Province was calculated by using the conventional observations of 28 meteorological stations from 1980 to 2014. The crop growth season, drought distribution, dry/wet development trend of the province, and main influencing factors were analyzed specifically using inverse distance weight spatial interpolation in ArcGIS, trend coefficient and correlational analysis method. The results are obtained as follows. In terms of the interannual relative humidity index distribution, the drought in the growing season mainly concentrated in the period of 2000—2010; the drought in summer and autumn mainly concentrated in the years after 1995 years; the drought in spring have occurred in all the time, and severe drought and extreme drought were in the majority. In terms of the variation trend of relative humidity index, the whole province presents a trend of slightly wetting in spring, and a trend of significant wetting in winter, while a trend of drying in the rest periods, but the spatial difference is significant in different periods. By analyzing the correlation coefficients of precipitation, potential evapotranspiration and relative humidity index, it is found that precipitation has always been the leading factor causing the relative humidity index changes in the growth season and other seasons in Heilongjiang Province, but the impact of potential evapotranspiration in summer has increased.

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顏雅瓊,申雙和,岳元,王琪,劉海秋.多時(shí)間尺度下黑龍江省1980—2014年干濕演變特征及主導(dǎo)因子分析.氣象科學(xué),2020,40(2):200-208 YAN Yaqiong, SHEN Shuanghe, YUE Yuan, WANG Qi, LIU Haiqiu. Analysis of dry/wet evolution characteristics and dominant factors in Heilongjiang Province on multiple time scales from 1980 to 2014. Journal of the Meteorological Sciences,2020,40(2):200-208

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收稿日期:2018-07-12
最后修改日期:2019-01-11
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在線發(fā)布日期: 2020-05-26
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