J. Halfar

Delayed onset of ocean acidification in the Gulf of Maine
20251 citationsauthor #10
Growth Increments of Coralline Red Alga Clathromorphum Compactum Capture Sea‐Ice Variability Links to Arctic and Atlantic Multidecadal Oscillations (1805–2015)
20242 citationsauthor #2
Elemental cycles in the coralline alga Neogoniolithon hauckii as a recorder of temperature variability in the Mediterranean Sea
20237 citationsauthor #3
Growth as a function of sea ice cover, light and temperature in the arctic/subarctic coralline C. compactum: A year-long in situ experiment in the high arctic
20229 citationsauthor #2
Utility of Dendrochronology Crossdating Methods in the Development of Arctic Coralline Red Algae Clathromorphum compactum Growth Increment Chronology for Sea Ice Cover Reconstruction
20227 citationsauthor #2
Canadian Arctic Neogene Temperatures Reconstructed From Hydrogen Isotopes of Lignin‐Methoxy Groups From Sub‐Fossil Wood
202211 citationsauthor #3
Late twentieth century increase in northern Spitsbergen (Svalbard) glacier-derived runoff tracked by coralline algal Ba/Ca ratios
20219 citationsauthor #2
Suitability of the Coralline Alga Clathromorphum compactum as an Arctic Archive for Past Sea Ice Cover
20215 citationsauthor #2
Variability in Primary Productivity Associated with Arctic Sea-Ice Melt Recorded in Crustose Coralline Algae
20200 citationsauthor #2
Recent density decline in wild-collected subarctic crustose coralline algae reveals climate change signature
202017 citationsauthor #2
Late 20th century increase in northern Svalbard glacier-derived runoff tracked by encrusting coralline algae
20200 citationsauthor #2
Keystone predators govern the pathway and pace of climate impacts in a subarctic marine ecosystem
202046 citationsauthor #3
Arctic crustose coralline alga resilient to recent environmental change
20209 citationsauthor #3
Shallow-water Benthic Foraminifera of the Galápagos Archipelago: Ecologically Sensitive Carbonate Producers in an Atypical Tropical Oceanographic Setting
20197 citationsauthor #2
Reprint of Comparison of climate signals obtained from encrusting and free-living rhodolith coralline algae
20193 citationsauthor #2
Variability in the Northern North Atlantic and Arctic Oceans Across the Last Two Millennia: A Review
201968 citationsauthor #8
The role of chitin-rich skeletal organic matrix on the crystallization of calcium carbonate in the crustose coralline alga Leptophytum foecundum
201931 citationsauthor #2
SEASONALITY IN MARINE ARCHIVES: IMPLICATIONS OF HIGH-RESOLUTION DATA FOR ASSESSING ECOSYSTEM RESILIENCE
20190 citationsauthor #3
INTRA- AND INTER-OBSERVER RELIABILITY OF CORALLINE RED ALGA CLATHROMORPHUM COMPACTUM AS A SEA ICE COVER PROXY
20190 citationsauthor #3
Early start of 20th-century Arctic sea-ice decline recorded in Svalbard coralline algae
201919 citationsauthor #2
RECORD OF ARCTIC OSCILLATION DRIVEN SEA ICE VARIABILITY IN LANCASTER SOUND, CANADIAN ARCTIC, USING THE LONG-LIVED CORALLINE ALGA CLATHROMORPHUM COMPACTUM
20190 citationsauthor #2
Effect of seawater temperature, pH, and nutrients on the distribution and character of low abundance shallow water benthic foraminifera in the Galápagos
201821 citationsauthor #2
Earliest Eocene cold period and polar amplification - Insights from δ2H values of lignin methoxyl groups of mummified wood
201819 citationsauthor #3
Long-lived coralline alga records multidecadal variability in Labrador Sea carbon isotopes
201812 citationsauthor #2
Coralline Algae Archive Fjord Surface Water Temperatures in Southwest Greenland
20185 citationsauthor #2
Impact of changing environmental conditions on a high-latitude coralline algae climate proxy archive
20180 citationsauthor #5
Effects of light and temperature on Mg uptake in the coralline algal climate proxy archive Clathromorphum compactum
20180 citationsauthor #2
TESTING THE SUITABILITY OF THE CORALLINE ALGA CLATHROMORPHUM COMPACTUM AS A PROXY FOR PAST SEA ICE COVER IN THE ARCTIC
20180 citationsauthor #2
Advancing Mg/Ca Analysis of Coralline Algae as a Climate Proxy by Assessing LA‐ICP‐OES Sampling and Coupled Mg/Ca‐δ18O Analysis
20183 citationsauthor #3
A COMPARISON OF TECHNIQUES FOR ANALYSIS OF MG/CA RATIOS IN THE HIGH-LATITUDE CORALLINE ALGAL PROXY CLIMATE ARCHIVE CLATHROMORPHUM
20180 citationsauthor #2
Comparison of climate signals obtained from encrusting and free-living rhodolith coralline algae
201816 citationsauthor #2
Reconstructing Sea Ice Cover in Lancaster Sound, Canadian Arctic Archipelago, using the long-lived coralline alga Clathromorphum compactum
20180 citationsauthor #1
Effects of light and temperature on Mg uptake, growth, and calcification in the proxy climate archive Clathromorphum compactum
201824 citationsauthor #3
Multi-centennial Record of Labrador Sea Primary Productivity and Sea-Ice Variability Archived in Coralline Algal Ba/Ca
20170 citationsauthor #2
Amplification of the Atlantic Multidecadal Oscillation associated with the onset of the industrial-era warming
201759 citationsauthor #2
North Pacific twentieth century decadal‐scale variability is unique for the past 342 years
201715 citationsauthor #2
Multicentennial record of Labrador Sea primary productivity and sea-ice variability archived in coralline algal barium
201729 citationsauthor #2
Micro‐computed tomography: Applications for high‐resolution skeletal density determinations: An example using annually banded crustose coralline algae
201710 citationsauthor #2
Overview of coralline red algal crusts and rhodolith beds (Corallinales, Rhodophyta) and their possible ecological importance in Greenland
201733 citationsauthor #2
Reproducibility of Clathromorphum compactum coralline algal Mg/Ca ratios and comparison to high-resolution sea surface temperature data
201719 citationsauthor #2
Guadeloupe annual coral seawater δ¹⁸O reconstruction
20171 citationsauthor #5
Skeletal growth controls on Mg/Ca and P/Ca ratios in tropical Eastern Pacific rhodoliths (coralline red algae)
201713 citationsauthor #3
Re-evaluation of using rhodolith growth patterns for paleoenvironmental reconstruction: An example from the Gulf of Panama
201713 citationsauthor #4
Thermal stress markers in Colpophyllianatans provide an archive of site-specific bleaching events
201618 citationsauthor #3
Title Assessing multi-site delta O-18-climate calibrations of the coralline alga Clathromorphum across the high-latitude Northern Hemisphere Permalink
20160 citationsauthor #4
Overview of coralline red algal crusts and rhodolith beds (Corallinales, Rhodophyta) and their possible ecological importance in Greenland
20160 citationsauthor #2
Response of High Latitude Coralline Algae to pCO 2 and Thermal Stress
20160 citationsauthor #8
Variable El Niño–Southern Oscillation influence on biofacies dynamics of eastern Pacific shallow-water carbonate systems
201612 citationsauthor #2
Heterozoan carbonates from the equatorial rocky reefs of the Galápagos Archipelago
201634 citationsauthor #3
Multicentennial Record of North Atlantic Primary Productivity and Sea-Ice Variability Archived in Coralline Algal Ba/Ca
20160 citationsauthor #2
EL NIÑO–SOUTHERN OSCILLATION INFLUENCE ON BIOFACIES DYNAMICS OF THE SHALLOW-WATER CARBONATE SYSTEMS OF THE GALÁPAGOS ARCHIPELAGO
20160 citationsauthor #2
Assessing multi-site δ18O-climate calibrations of the coralline alga Clathromorphum across the high-latitude Northern Hemisphere
20164 citationsauthor #5
Century-scale trends and seasonality in pH and temperature for shallow zones of the Bering Sea
201560 citationsauthor #3
SUBARCTIC RHODOLITH BEDS PROMOTE LONGEVITY OF CRUSTOSE CORALLINE ALGAL BUILDUPS AND THEIR CLIMATE ARCHIVING POTENTIAL
201533 citationsauthor #2
Thermal stress markers in Colpophyllianatans provide an archive of site-specific bleaching events
20150 citationsauthor #3
The Coralline Genus Clathromorphum Foslie emend. Adey: Biological, Physiological, and Ecological Factors Controlling Carbonate Production in an Arctic-Subarctic Climate Archive
201588 citationsauthor #2
Seasonality in pH and temperature for shallow zones of the Bering Sea from measurements of coral Clathromorphum nereostratum
20150 citationsauthor #3
Does the Coralline Alga Leptophytum foecundum (Kjellman) Capture Paleoenvironmental Variability in the Arctic Ocean?
20152 citationsauthor #3
Extraction of α-cellulose from mummified wood for stable isotopic analysis
201517 citationsauthor #2
Multi-centennial reconstruction of Aleutian climate from coralline algae
20150 citationsauthor #2
Developing a Forward Model of Encrusting Coralline Algae
20140 citationsauthor #4
Multi-specimen and multi-site calibration of Aleutian coralline algal Mg/Ca to sea surface temperature
201433 citationsauthor #2
First evidence of chitin in calcified coralline algae: new insights into the calcification process of Clathromorphum compactum
2014124 citationsauthor #2
Crustose coralline algae as recorders of past climate and ocean variability
20140 citationsauthor #2
Multi-Centennial Record of North Atlantic Freshwater Variability since the Little Ice Age Archived in Coralline Algal Ba/Ca
20140 citationsauthor #2
Stable isotope paleoclimatology of the earliest Eocene using kimberlite-hosted mummified wood from the Canadian Subarctic
201414 citationsauthor #2
Controlled Breaking of Mummified Wood For Use In Paleoenvironmental Analysis
20134 citationsauthor #2
From coral framework to rhodolith bed: sedimentary footprint of the 1982/1983 ENSO in the Galápagos
20130 citationsauthor #1
Arctic sea-ice decline archived by multicentury annual-resolution record from crustose coralline algal proxy
201388 citationsauthor #1
From coral framework to rhodolith bed: sedimentary footprint of the 1982/1983 ENSO in the Galápagos
201319 citationsauthor #1
Coralline algal Barium as indicator for 20th century northwestern North Atlantic surface ocean freshwater variability
201331 citationsauthor #2
X-Ray Diffraction Is a Promising Tool to Characterize Coral Skeletons
201334 citationsauthor #2
Variable controls on subarctic coralline algal growth
20120 citationsauthor #2
Modern Rhodolith-dominated carbonates at Punta Chivato, Mexico
201214 citationsauthor #1
Marine proxy evidence linking decadal North Pacific and Atlantic climate
201226 citationsauthor #3
Century-scale variability of coralline algal calcification rates in the North Pacific and North Atlantic
20120 citationsauthor #1
Mid- and High-Latitude coralline algal buildups and their use as paleoenvironmental archives
20120 citationsauthor #1
Development of high-latitude coralline algae as proxy archives: a Mg/Ca replication and calibration study
20120 citationsauthor #2
Calibration of Aleutian coralline algal Mg/Ca to sea surface temperature
20121 citationsauthor #2
225 years of Bering Sea climate and ecosystem dynamics revealed by coralline algal growth-increment widths
201147 citationsauthor #1
Freshening of the Alaska Coastal Current recorded by coralline algal Ba/Ca ratios
201162 citationsauthor #2
Coralline algal growth-increment widths archive North Atlantic climate variability
201183 citationsauthor #1
350 years of paleoceanographic change in the Aleutian archipelago extracted from the skeletons of a subarctic coralline alga
20110 citationsauthor #2
Twentieth century δ 13 C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea
201147 citationsauthor #2
Biogeosciences Twentieth century δ 13 C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea
20113 citationsauthor #2
Reconstructing mid- to high-latitude marine climate and ocean variability using bivalves, coralline algae, and marine sediment cores from the Northern Hemisphere
201171 citationsauthor #3
Changes in coralline algal calcification as a possible indicator of sub-arctic ocean acidification
20110 citationsauthor #2
High-resolution analysis of trace elements in crustose coralline algae from the North Atlantic and North Pacific by laser ablation ICP-MS
201147 citationsauthor #2
Rapid 20th century warming in the Caribbean and impact of remote forcing on climate in the northern tropical Atlantic as recorded in a Guadeloupe coral.
201072 citationsauthor #5
Tobago brain coral provides a long-term archive of south American river runoff, tropical climate variability and shifts in coral growth
20100 citationsauthor #4
Heterozoan carbonates in subtropical to tropical settings in the present and past
201084 citationsauthor #2
A link between North Pacific and North Atlantic climate on multidecadal time scales - new insights from coralline algae
20100 citationsauthor #2
Skeletal density trends in coralline algae suggest ocean acidification impacts in the North Pacific and North Atlantic
20100 citationsauthor #1
Is the Alaska Coastal Current becoming less saline? An example using coralline algal Ba/Ca ratios
20100 citationsauthor #2
Are North Pacific and Atlantic multi-decadal variability related?
20100 citationsauthor #4
Mg/Ca ratios in coralline algae record northwest Atlantic temperature variations and North Atlantic Oscillation relationships
201036 citationsauthor #2
Preliminary results: ECHAM5 T213 (50km), Simulation over mid-latitude SST fronts
20100 citationsauthor #6
Mg/Ca in coralline algae record 300 years of sea surface temperatures in the Bering Sea
20100 citationsauthor #2
Coralline red algae as recorders of past temperature and salinity variability of the Alaska Coastal Current
20100 citationsauthor #2
Tobago coral record as a high- resolution archive of Amazon and Orinoco River outflow and tropical climate variability
20100 citationsauthor #4

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