noaa-ocean-12945
Northwest Atlantic 115 Year Coralline Algae Growth Increment Data
Halfar, J.; Hetzinger, S.; Adey, W.; Zack, T.; Gamboa, G.; Kunz, B.; Williams, B.; Jacob, D.E.
Northwest Atlantic 115 Year Coralline Algae Growth Increment Data
2012-05-23
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/12945
Investigator
J.
Halfar
Investigator
S.
Hetzinger
Investigator
W.
Adey
Investigator
T.
Zack
Investigator
G.
Gamboa
Investigator
B.
Kunz
Investigator
B.
Williams
Investigator
D.E.
Jacob
earth science
paleoclimate
corals and sclerosponges
growth rate,Clathromorphum nereostratum,null,micrometer,null,corals and sclerosponges,null,null,N,growth increment width of coralline red algae species
earth science
paleoclimate
paleoceanography
age,null,null,year Common Era,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleocean
biomarkers
geoscientificInformation
1871 AD
2007 AD
79 cal yr BP
-57 cal yr BP
Complete
47.3083
51.5856
-62.8
-52.7892
Ocean
Atlantic Ocean
North Atlantic Ocean
Cape St. Martin>LATITUDE 50.025>LONGITUDE -55.8833
Ocean
Atlantic Ocean
North Atlantic Ocean
Ile Longue>LATITUDE 50.2733>LONGITUDE -62.8
Ocean
Atlantic Ocean
North Atlantic Ocean
Bay Bulls>LATITUDE 47.3083>LONGITUDE -52.7892
Ocean
Atlantic Ocean
North Atlantic Ocean
Quirpon Island>LATITUDE 51.5856>LONGITUDE -55.4248
Ocean
Atlantic Ocean
North Atlantic Ocean
Outer Wapitagun Island>LATITUDE 50.195>LONGITUDE -60.0133
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
Halfar, J., S. Hetzinger, W. Adey, T. Zack, G. Gamboa, B. Kunz,
B. Williams, and D.E. Jacob. 2011.
Coralline algal growth-increment widths archive North Atlantic
climate variability.
Palaeogeography, Palaeoclimatology, Palaeoecology,
Vol. 302, Issues 1-2, March 2011, pp. 71-80.
doi:10.1016/j.palaeo.2010.04.009
Over the past decade coralline algae have increasingly been used
as archives of paleoclimate information. Encrusting coralline algae,
which deposit annual growth increments in a high Mg-calcite skeleton,
are amongst the longest-lived shallow marine organisms. In fact,
a live-collected plant has recently been shown to have lived for
at least 850 years based on radiometric dating. While a number of
investigations have successfully used geochemical information of
coralline algal skeletons to reconstruct sea surface temperatures,
less attention has been paid to employ growth increment widths
as a temperature proxy. Here we explore the relationship between
growth and environmental parameters in Clathromorphum compactum
collected in the subarctic Northwestern Atlantic. Results indicate
that growth-increment widths of individual plants are poorly
correlated with instrumental sea surface temperatures (SST).
However, an averaged record of multiple growth increment-width
time series from a regional network of C. compactum specimens
up to 800 km apart reveals strong correlations with annual
instrumental SST since 1950. Hence, similar to methods applied
in dendrochronology, averaging of multiple sclerochronological
records of coralline algae provides accurate climate information.
A 115-year growth-increment width master chronology created from
modern-collected and museum specimens is highly correlated to
multidecadal variability seen in North Atlantic sea surface
temperatures. Positive changes in algal growth anomalies record
the well-documented regime shift and warming in the northwestern
Atlantic during the 1990s. Large positive changes in algal growth
anomalies were also present in the 1920s and 1930s, indicating
that the impact of a concurrent large-scale regime shift throughout
the North Atlantic was more strongly felt in the subarctic
Northwestern Atlantic than previously thought, and may have
even exceeded the 1990s event with respect to the magnitude
of the warming.
STUDY NOTES: 115 year growth increment chronology of the massive coralline alga
Clathromorphum compactum from the Northwest Atlantic. A network of
modern-collected and museum specimens from the shelf regions of
Newfoundland and the Gulf of St. Lawrence, Canada, were used to
develop a 115-year annual-resolution growth-increment width
master chronology.
Table 1
Correlation coefficients and significance levels of annually resolved C. compactum growth time series
from the Northwest Atlantic, Canada. Note that correlations improve when two transects within
the same sample are averaged (e.g. SJ28-L1+2), and when averaging all transects (Master).
Correlation coefficients (r) and significance levels (p) from 1950 to end of record with annually
averaged ERSSTJul-Sept (Smith et al., 2008); n = number of years used in correlation.
AnnualGrowth(um)
Sample Site Location Lat. N Long. W Period Average 1SD r p n
SJ28-L1 Bay Bulls, St. Johns Newfoundland 47°18.496' 52°47.354' 1933-2007 276 44 0.13 0.333 58
SJ28-L2 Bay Bulls, St. Johns Newfoundland 47°18.496' 52°47.354' 1920-2007 251 39 0.19 0.155 58
SJ21-L2 Bay Bulls, St. Johns Newfoundland 47°18.496' 52°47.354' 1914-2007 335 80 0.26 0.044 58
QP4-4-L1 Quirpon Island Newfoundland 51°35.135' 55°25.490' 1941-2007 303 75 0.34 0.009 58
QP4-4-L2 Quirpon Island Newfoundland 51°35.135' 55°25.490' 1941-2007 335 77 0.28 0.036 58
QP4-3-L1 Quirpon Island Newfoundland 51°35.135' 55°25.490' 1933-2007 326 105 0.2 0.133 58
QP4-3-L2 Quirpon Island Newfoundland 51°35.135' 55°25.490' 1941-2007 358 114 0.2 0.127 58
170176 Cape St. Martin Newfoundland 50°1.5' 55°53' 1871-1963 298 84 0.09 0.761 14
64-27-C Outer Wapitagun Island Gulf St. Lawrence 50°11.7' 60°0.8' 1893-1963 265 73 0.07 0.824 14
64-22-H Ile Longue, Quetachu Bay Gulf St. Lawrence 50°16.4' 62°48' 1872-1963 220 65 0.15 0.606 14
SJ28-L1+2 Bay Bulls, St. Johns Newfoundland 47°18.496' 52°47.354' 1920-2007 264 42 0.23 0.076 58
QP4-4-L1+2 Quirpon Island Newfoundland 51°35.135' 55°25.490' 1941-2007 319 76 0.38 0.003 58
QP4-3-L1+2 Quirpon Island Newfoundland 51°35.135' 55°25.490' 1933-2007 342 110 0.27 0.037 58
Master All Sites 1893-2007 296 43 0.48 0.0001 58
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https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/halfar2011b/halfar2011b.txt
GET DATA
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2018-12-11
2018-12-11