本文選題：南極半島北部 + 氣溫　； 參考：《氣象科技》2016年05期

【摘要】：依據(jù)1974—2013年Vernadsky、Marambio、Esperanza、Marsh站月、季、年平均氣溫和各站附近海域的海冰密集度,采用線(xiàn)性回歸傾向估計(jì)方法,對(duì)近40年的氣溫特征及與海冰的相互關(guān)系進(jìn)行了研究。結(jié)果表明,近40年南極半島北部氣溫呈變暖趨勢(shì),海冰密集度與氣溫的變化為負(fù)相關(guān)。近40年年平均氣溫升溫情況分別為Vernadsky 2.24℃、Marambio 0.88℃、Esperanza 0.8℃、Marsh 0.12℃。冬季升溫是南極半島北部年平均氣溫升高的關(guān)鍵,西海岸則是半島北部升溫速度最快的區(qū)域。南極半島北部氣溫高值區(qū)位于喬治王島,低值區(qū)位于東海岸。20世紀(jì)90年代中期到本世紀(jì)初氣溫升溫明顯,是造成近40年氣溫變暖的關(guān)鍵期。海冰密集度除Marambio呈弱增長(zhǎng)趨勢(shì)外,其余3個(gè)站均明顯減少。這一變化也證實(shí)了:西海岸升溫顯著,東海岸和喬治王島升溫相對(duì)緩和。
[Abstract]:Based on the monthly, seasonal and annual mean temperature of Vernadsky Marambio Esperanza Marsh station from 1974 to 2013 and the sea ice density in the sea area near the stations, a linear regression tendency estimation method was used to study the temperature characteristics and their relationship with sea ice in the last 40 years. The results show that the temperature of the northern Antarctic Peninsula shows a warming trend in the past 40 years, and the sea ice density is negatively correlated with the temperature change. The annual mean temperature rise in the last 40 years is Vernadsky 2.24 鈩，

本文編號(hào)：1860743