DOI: 10.5194/cp-12-1693-2016
Scopus记录号: 2-s2.0-84983472661
论文题名: Water and carbon stable isotope records from natural archives: A new database and interactive online platform for data browsing, visualizing and downloading
作者: Bolliet T. ; Brockmann P. ; Masson-Delmotte V. ; Bassinot F. ; Daux V. ; Genty D. ; Landais A. ; Lavrieux M. ; Michel E. ; Ortega P. ; Risi C. ; Roche Didier M.D. ; Vimeux F. ; Waelbroeck C.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2016
卷: 12, 期: 8 起始页码: 1693
结束页码: 1719
语种: 英语
Scopus关键词: carbon isotope
; chronology
; climate modeling
; coral
; database
; ice core
; lacustrine deposit
; Last Glacial Maximum
; Last Interglacial
; marine sediment
; paleoclimate
; proxy climate record
; speleothem
; stable isotope
; transfer function
; tree ring
; World Wide Web
; Anthozoa
英文摘要: Past climate is an important benchmark to assess the ability of climate models to simulate key processes and feedbacks. Numerous proxy records exist for stable isotopes of water and/or carbon, which are also implemented inside the components of a growing number of Earth system model. Model-data comparisons can help to constrain the uncertainties associated with transfer functions. This motivates the need of producing a comprehensive compilation of different proxy sources. We have put together a global database of proxy records of oxygen (δ18O), hydrogen (δD) and carbon (δ13C) stable isotopes from different archives: ocean and lake sediments, corals, ice cores, speleothems and tree-ring cellulose. Source records were obtained from the georeferenced open access PANGAEA and NOAA libraries, complemented by additional data obtained from a literature survey. About 3000 source records were screened for chronological information and temporal resolution of proxy records. Altogether, this database consists of hundreds of dated δ18O, δ13C and δD records in a standardized simple text format, complemented with a metadata Excel catalog. A quality control flag was implemented to describe age markers and inform on chronological uncertainty. This compilation effort highlights the need to homogenize and structure the format of datasets and chronological information as well as enhance the distribution of published datasets that are currently highly fragmented and scattered. We also provide an online portal based on the records included in this database with an intuitive and interactive platform (http://climateproxiesfinder.ipsl.fr/ ), allowing one to easily select, visualize and download subsets of the homogeneously formatted records that constitute this database, following a choice of search criteria, and to upload new datasets. In the last part, we illustrate the type of application allowed by our database by comparing several key periods highly investigated by the paleoclimate community. For coherency with the Paleoclimate Modelling Intercomparison Project (PMIP), we focus on records spanning the past 200 years, the mid-Holocene (MH, 5.5–6.5ĝ€ka; calendar kiloyears before 1950), the Last Glacial Maximum (LGM, 19–23ĝ€ka), and those spanning the last interglacial period (LIG, 115–130ĝ€ka). Basic statistics have been applied to characterize anomalies between these different periods. Most changes from the MH to present day and from LIG to MH appear statistically insignificant. Significant global differences are reported from LGM to MH with regional discrepancies in signals from different archives and complex patterns. © Author(s) 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/48981
Appears in Collections: 气候变化与战略
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Recommended Citation:
Bolliet T.,Brockmann P.,Masson-Delmotte V.,et al. Water and carbon stable isotope records from natural archives: A new database and interactive online platform for data browsing, visualizing and downloading[J]. Climate of the Past,2016-01-01,12(8)