中国环境科学
中國環境科學
중국배경과학
CHINA ENVIRONMENTAL SCIENCE
2014年
10期
2472-2478
,共7页
史晋森%孙乃秀%叶浩%章如东
史晉森%孫迺秀%葉浩%章如東
사진삼%손내수%협호%장여동
黑碳%季节性降雪%青海高原%反照率
黑碳%季節性降雪%青海高原%反照率
흑탄%계절성강설%청해고원%반조솔
black carbon%seasonal snow%Qinghai Plateau%albedo
对青海高原2012年季节性降雪进行采集.6个采样点集中在青海高原东南部地区,共包括36袋雪样.从分析结果可知,青海高原东南部地区季节性降雪中含有较多的沙尘,滤膜颜色多为土黄色.6个采样点雪中的黑碳浓度为(184±123)ng/g,表层雪的黑碳浓度范围是59~238ng/g,平均值为152ng/g.通过后向轨迹聚类分析知道气流主要来自南亚和青藏高原地区,有少部分是来自塔克拉玛干沙漠和戈壁地区.
對青海高原2012年季節性降雪進行採集.6箇採樣點集中在青海高原東南部地區,共包括36袋雪樣.從分析結果可知,青海高原東南部地區季節性降雪中含有較多的沙塵,濾膜顏色多為土黃色.6箇採樣點雪中的黑碳濃度為(184±123)ng/g,錶層雪的黑碳濃度範圍是59~238ng/g,平均值為152ng/g.通過後嚮軌跡聚類分析知道氣流主要來自南亞和青藏高原地區,有少部分是來自塔剋拉瑪榦沙漠和戈壁地區.
대청해고원2012년계절성강설진행채집.6개채양점집중재청해고원동남부지구,공포괄36대설양.종분석결과가지,청해고원동남부지구계절성강설중함유교다적사진,려막안색다위토황색.6개채양점설중적흑탄농도위(184±123)ng/g,표층설적흑탄농도범위시59~238ng/g,평균치위152ng/g.통과후향궤적취류분석지도기류주요래자남아화청장고원지구,유소부분시래자탑극랍마간사막화과벽지구.
A total of 36 snow samples were collected and analyzed at 6 sites over the southeastern part of Qinghai Plateau. The results showed that the major color of the filters over these sites was yellow, indicating that the seasonal snow contained a large amount of dust. The BC concentration in the seasonal snow was (184±123)ng/g over the 6 sites. In addition, the BC concentration in surface snow ranged from 59ng/g to 238ng/g with an average of 152ng/g. Back trajectory clustering analysis, suggested that the air mass streams were mainly from South Asia and Tibet Plateau, and a small portion was from Taklimakan and Gobi desert.