noaa-ocean-12889
Amchitka Island Alaska 150 Year Corraline Algae Mg/Ca Data
Hetzinger, S.; Halfar, J.; Mecking, J.V.; Keenlyside, N.S.; Kronz, A.; Steneck, R.S.; Adey, W.; Lebednik, P.
Amchitka Island Alaska 150 Year Corraline Algae Mg/Ca Data
2012-04-02
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/12889
Investigator
S.
Hetzinger
Investigator
J.
Halfar
Investigator
J.V.
Mecking
Investigator
N.S.
Keenlyside
Investigator
A.
Kronz
Investigator
R.S.
Steneck
Investigator
W.
Adey
Investigator
P.
Lebednik
earth science
paleoclimate
corals and sclerosponges
magnesium/calcium,Clathromorphum nereostratum,null,dimensionless,null,corals and sclerosponges,null,null,N,coralline red algae species
earth science
paleoclimate
corals and sclerosponges
magnesium/calcium,Clathromorphum nereostratum,null,dimensionless,null,corals and sclerosponges,normalized,null,N,coralline red algae species
earth science
paleoclimate
paleoceanography
age,null,null,year Common Era,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleocean
geochemistry
geoscientificInformation
North Atlantic Oscillation
PAGES 2k Network
PAGES Ocean 2k
1818 AD
1967 AD
132 cal yr BP
-17 cal yr BP
Complete
51.4156
51.4156
179.2996
179.2996
-25
-25
Continent
North America
United States Of America
Alaska
Kirlof Point, Amchitka Island>LATITUDE 51.4156>LONGITUDE 179.2996
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
S. Hetzinger, J. Halfar, J.V. Mecking, N.S. Keenlyside,
A. Kronz, R.S. Steneck, W.H. Adey and P.A. Lebednik. 2011.
Marine proxy evidence linking decadal North Pacific
and Atlantic climate.
Climate Dynamics, Online First, 15 November 2011.
DOI 10.1007/s00382-011-1229-4
Decadal- to multidecadal variability in the extra-tropical
North Pacific is evident in 20th century instrumental records
and has significant impacts on Northern Hemisphere climate
and marine ecosystems. Several studies have discussed
a potential linkage between North Pacific and Atlantic climate
on various time scales. On decadal time scales no relationship
could be confirmed, potentially due to sparse instrumental
observations before 1950. Proxy data are limited and no multi-
centennial high-resolution marine geochemical proxy records
are available from the subarctic North Pacific. Here we present
an annually-resolved record (1818-1967) of Mg/Ca variations
from a North Pacific/Bering Sea coralline alga that extends
our knowledge in this region beyond available data. It shows
for the first time a statistically significant link between
decadal fluctuations in sea-level pressure in the North Pacific
and North Atlantic. The record is a lagged proxy for decadal-
scale variations of the Aleutian Low. It is significantly
related to regional sea surface temperature and the North
Atlantic Oscillation (NAO) index in late boreal winter
on these time scales. Our data show that on decadal time scales
a weaker Aleutian Low precedes a negative NAO by several years.
This atmospheric link can explain the coherence of decadal
North Pacific and Atlantic Multidecadal Variability,
as suggested by earlier studies using climate models
and limited instrumental data.
STUDY NOTES: 150 year Mg/Ca data from coralline alga collected near Amchitka Island,
Aleutian Islands, Alaska. C. nereostratum is a long-lived, shallow-marine
crustose coralline algae.
Specimen AM-KR-80 8-69-14B
collected in August 1969, 25 water depth,
coralline algae, species: Clathromorphum nereostratum
Sampling location:
Kirlof Point, Amchitka Island, Alaska, 51°24.936'N, 179°17.976'E.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hetzinger2011/hetzinger2011.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hetzinger2011/hetzinger2011.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11