本文選題：極端氣溫指數(shù) + 空間分布　； 參考：《生態(tài)學(xué)報(bào)》2017年19期

【摘要】：基于1960—2014年65個(gè)氣象站點(diǎn)逐日最高、最低氣溫和平均氣溫資料,分析了長(zhǎng)江三角洲地區(qū)極端氣溫事件的變化規(guī)律和ENSO事件強(qiáng)度對(duì)極端氣溫指數(shù)變化趨勢(shì)的影響。結(jié)果表明:近55年長(zhǎng)江三角洲地區(qū)夏季日數(shù)(SU)、熱夜日數(shù)(TR)、暖晝?nèi)諗?shù)(TX90)、暖夜日數(shù)(TN90)、異常暖晝持續(xù)指數(shù)(WSDI)、生長(zhǎng)期(GSL)均呈增加趨勢(shì),其中暖夜日數(shù)(TN90)增加幅度最大,增幅為8.55d/10a;極值指數(shù)也呈上升趨勢(shì),其中月最低氣溫極小值(TNn)上升幅度最大為(0.53℃/10a);冰凍日數(shù)(ID)、霜凍日數(shù)(FD)、冷晝?nèi)諗?shù)(TX10)、冷夜日數(shù)(TN10)、異常冷晝持續(xù)指數(shù)(CSDI)均呈減少趨勢(shì),其中冷夜日數(shù)(TN10)減少幅度最大(-6.06d/10a);月平均日較差(DTR)以0.11℃/10a的速率呈下降趨勢(shì)。空間上,所有站點(diǎn)SU、TXn、TNx呈增加趨勢(shì);TR、TX90、TN90、TNn、TXx、WSDI、GSL分別有97%、85%、98%、95%、78%、92%、94%的站點(diǎn)呈增加趨勢(shì);所有站點(diǎn)ID、FD、TX10、TN10呈減少趨勢(shì);CSDI、DTR分別有87%、77%的站點(diǎn)呈減少趨勢(shì)。多數(shù)極端氣溫指數(shù)與緯度、經(jīng)度、海拔顯著相關(guān)。氣候變暖突變后,極端暖指數(shù)明顯增加,極端冷指數(shù)明顯減少。總體上,厄爾尼諾對(duì)極端氣溫指數(shù)的影響大于拉尼娜的影響。
[Abstract]:Based on the daily maximum and minimum temperature and mean temperature data of 65 meteorological stations from 1960 to 2014, the variation of extreme temperature events in the Yangtze River Delta and the influence of ENSO event intensity on the trend of extreme temperature index are analyzed. The results show that in the recent 55 years, the summer days, the hot days, the warm days and the warm days of the Yangtze River Delta show an increasing trend, among which the warm night days increase the maximum, and the abnormal warm day duration index (WSDI) and the growth period (GSLs) show an increasing trend. The increase was 8.55 d / 10 a; the extreme value index also showed an upward trend, in which the minimum monthly minimum temperature (TNN) increased by 0.53 鈩，

本文編號(hào)：2010606