Zobrazeno 1 - 9
of 9
pro vyhledávání: '"B. C. Lougheed"'
Autor:
B. C. Lougheed, B. Metcalfe
Publikováno v:
Biogeosciences, Vol 19, Pp 1195-1209 (2022)
We used a single foraminifera enabled, holistic hydroclimate-to-sediment transient modelling approach to fundamentally evaluate the efficacy of discrete-depth individual foraminifera analysis (IFA) for reconstructing past sea surface temperature (SST
Externí odkaz:
https://doaj.org/article/11aef5a01d644cff905b70036dcd4cdf
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
What caused the end of the high ocean productivity in the tropics in late Miocene-early Pliocene is debated. Here, deep-sea sediment records reveal that productivity abruptly declined 4.6 million years ago, potentially linked to reduced seasonality a
Externí odkaz:
https://doaj.org/article/aab8566e154d4e8ba9c29bd4333cb71b
Publikováno v:
Climate of the Past, Vol 16, Pp 885-910 (2020)
A complete understanding of past El Niño–Southern Oscillation (ENSO) fluctuations is important for the future predictions of regional climate using climate models. One approach to reconstructing past ENSO dynamics uses planktonic foraminifera as r
Externí odkaz:
https://doaj.org/article/0abcf429c0ff409a8a5f444a5567cc3c
Autor:
B. C. Lougheed
Publikováno v:
Geoscientific Model Development, Vol 13, Pp 155-168 (2020)
The systematic bioturbation of single particles (such as foraminifera) within deep-sea sediment archives leads to the apparent smoothing of any temporal signal as recorded by the downcore, discrete-depth mean signal. This smoothing is the result of t
Externí odkaz:
https://doaj.org/article/01874754c63a4286ac998933a3595330
Autor:
C. Waelbroeck, S. Pichat, E. Böhm, B. C. Lougheed, D. Faranda, M. Vrac, L. Missiaen, N. Vazquez Riveiros, P. Burckel, J. Lippold, H. W. Arz, T. Dokken, F. Thil, A. Dapoigny
Publikováno v:
Climate of the Past, Vol 14, Pp 1315-1330 (2018)
Thanks to its optimal location on the northern Brazilian margin, core MD09-3257 records both ocean circulation and atmospheric changes. The latter occur locally in the form of increased rainfall on the adjacent continent during the cold intervals
Externí odkaz:
https://doaj.org/article/7d2d6c1e29f947a88115c7e4cc5450bb
Publikováno v:
Climate of the Past, Vol 14, Pp 515-526 (2018)
Late-glacial palaeoclimate reconstructions from deep-sea sediment archives provide valuable insight into past rapid changes in ocean chemistry. Unfortunately, only a small proportion of the ocean floor with sufficiently high sediment accumulation
Externí odkaz:
https://doaj.org/article/d1fda9ad3944421bab29984230a3a1c3
Publikováno v:
Climate of the Past, Vol 9, Iss 3, Pp 1015-1028 (2013)
Coastal locations are highly influenced by input from freshwater river runoff, including sources of terrestrial carbon, which can be expected to modify the 14C reservoir age, or R (t), associated with marine water. In this Baltic Sea case study, pre-
Externí odkaz:
https://doaj.org/article/628a8ee6df934e069bf9102c2976bbf9
Publikováno v:
Nature Communications
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
The late Miocene-early Pliocene biogenic bloom was an extended time interval characterised by elevated ocean export productivity at numerous locations. As primary productivity is nutrient-limited at low-to-mid latitudes, this bloom has been attribute