메뉴 건너뛰기
소속 기관 / 학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
고객센터 ENG
주제분류

논문 기본 정보

저자정보
출처
Springer Science and Business Media LLC Scientific Reports 13(1)
오류 신고하기
표지

검색

    초록·키워드

    Recently, δ<sup>17</sup>O and its excess (Δ'<sup>17</sup>O) have become increasingly significant "triple-oxygen-isotope" indicators of distinctive hydrological processes in hydrology and climatology. This situation mirrors the research regarding δ<sup>18</sup>O and δ<sup>2</sup>H in the 1960s towards a solid theoretical base and a surge in application examples and field studies worldwide. Currently, systematic global measurements for δ<sup>17</sup>O in precipitation are still lacking. As a result, attempts have been made to define a Global δ<sup>17</sup>O/δ<sup>18</sup>O Meteoric Water Line (GMWL), often by using regional or local datasets of varying systematicity. Different definitions of the global reference slope (λ<sub>ref</sub>) for determining Δ'<sup>17</sup>O values have been proposed, by ongoing debate around a proposed consensus value of 0.528. This study used worldwide samples archived in the IAEA Global Network of Isotopes in Precipitation (GNIP) to (a) derive a δ<sup>17</sup>O/δ<sup>18</sup>O GMWL based on four-year monthly records from 66 GNIP stations, (b) formulate local δ<sup>17</sup>O/δ<sup>18</sup>O meteoric water lines (LMWL) for these stations' areas, and (c) evaluate regional and seasonal variations of Δ'<sup>17</sup>O in precipitation. The GMWL for δ<sup>17</sup>O/δ<sup>18</sup>O was determined to be δ'<sup>17</sup>O = 0.5280 ± 0.0002 δ'<sup>18</sup>O + 0.0153 ± 0.0013, in keeping with the consensus value. Furthermore, our results suggested that using a line-conditioned <sup>17</sup>O-excess is a viable alternative over the global λ<sub>ref</sub> in the context of regional hydrology and paleoclimatology interpretations; however, without challenging the global λ<sub>ref</sub> as such.

    본문·목차

    최근 본 자료 전체보기