منابع مشابه
Silene armena, a new record from Iran
During an exploration in boundary areas of Salmas (W Azarbayjan province, Iran) in 2016, an interesting plant from the genus Silene was collected. Determination of the plant material by using Flora Iranica was showed that, it is an unknown plant, but the specimen was determined as Silene armena Boiss. from the section Sclerocalycinae according to identification key of Flora of Turkey and Flora ...
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We present the first reconstruction of the Northern Hemisphere (NH) high latitude atmospheric carbon monoxide (CO) mole fraction from Greenland firn air. Firn air samples were collected at three deep ice core sites in Greenland (NGRIP in 2001, Summit in 2006 and NEEM in 2008). CO records from the three sites agree well with each other as well as with recent atmospheric measurements, indicating ...
متن کاملA 600-year annual Be record from the NGRIP ice core, Greenland
[1] Despite the extensive use of Be as the most significant information source on past solar activity, there has been only one record (Dye-3, Greenland) providing annual resolution over several centuries. Here we report a new annual resolution Be record spanning the period 1389–1994 AD, measured in an ice core from the NGRIP site in Greenland. NGRIP and Dye-3 Be exhibits similar long-term varia...
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The measurement of isotope ratios in sedimentary rocks deposited over geological time can provide key insights to past environmental change over important intervals in the past. However, it is important to be aware that secondary alteration can overprint the original isotopic records. We demonstrate this principle using high-resolution carbon, sulfur, and oxygen isotope measurements in organic ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 1997
ISSN: 0148-0227
DOI: 10.1029/96jd03248