Alan Hogg
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View article: 4CPS-229 Sustainability: a person-centred, whole systems approach to medicines optimisation
4CPS-229 Sustainability: a person-centred, whole systems approach to medicines optimisation Open
Background and Importance Suboptimal medicines use is a challenge for health systems globally, contributing to suboptimal outcomes, inefficiencies and sustainability issues, including waste. Aim and Objectives The aim was to utilise the Cl…
View article: The Te Puninga Fault, Hauraki Plains: a new seismic source in the low seismicity northern region of New Zealand
The Te Puninga Fault, Hauraki Plains: a new seismic source in the low seismicity northern region of New Zealand Open
In this study, we provide the first field-based assessment of the seismic potential of the Te Puninga Fault, Hauraki Plains, Waikato region. Initially considered to be part of the nearby Kerepehi Fault, our new mapping and field data sugge…
View article: DEVELOPMENT OF THE INTCAL DATABASE
DEVELOPMENT OF THE INTCAL DATABASE Open
The IntCal family of radiocarbon ( 14 C) calibration curves is based on research spanning more than three decades. The IntCal group have collated the 14 C and calendar age data (mostly derived from primary publications with other types of …
View article: Developing tree ring chronologies from New Zealand matai (Prumnopitys taxifolia (D.Don) Laub.) for archaeological dating: Stable isotope dendrochronology
Developing tree ring chronologies from New Zealand matai (Prumnopitys taxifolia (D.Don) Laub.) for archaeological dating: Stable isotope dendrochronology Open
Aotearoa New Zealand has a rich cultural heritage but dating wooden objects using classic dendrochronology is challenging due to a paucity of master tree-ring width chronologies for species commonly identified in the archaeological record.…
View article: Late Holocene climate anomaly concurrent with fire activity and ecosystem shifts in the eastern Australian Highlands
Late Holocene climate anomaly concurrent with fire activity and ecosystem shifts in the eastern Australian Highlands Open
The alpine area of the Australian mainland is highly sensitive to climate and environmental change, and potentially vulnerable to ecosystem tipping points. Over the next two decades the Australian alpine region is predicted to experience t…
View article: Redating the Global Abrupt Sea-Level Rise during Meltwater Pulse-1A and Implications for Global Ice Mass Loss
Redating the Global Abrupt Sea-Level Rise during Meltwater Pulse-1A and Implications for Global Ice Mass Loss Open
<div><span>Model-based projections of ice-sheet thresholds and global sea-level rise are severely constrained by </span><span>instrumental observations being only decadal to century-long. As we improve our understan…
View article: Major and trace element analysis of the Hudson 2 tephra
Major and trace element analysis of the Hudson 2 tephra Open
Major and trace element data for the H2 eruption of Mount Hudson, southern Chile. Analysis was conducted on a distal cryptotephra from a Holocene peat bog in the Falkland Islands and a proximal sample from Lago Quijada, Chile. Major elemen…
View article: WHEN DID THE INCAS BUILD MACHU PICCHU AND ITS SATELLITE SITES? NEW APPROCHES BASED ON RADIOCARBON DATING
WHEN DID THE INCAS BUILD MACHU PICCHU AND ITS SATELLITE SITES? NEW APPROCHES BASED ON RADIOCARBON DATING Open
According to the classical chronology of the Inca State, the ascension to power of Pachacuti Inca took place around AD 1438 and the construction of Machu Picchu began by AD 1450–1460. However, the improvement in the accuracy of radiocarbon…
View article: SHCal20 Southern Hemisphere Calibration, 0–55,000 Years cal BP
SHCal20 Southern Hemisphere Calibration, 0–55,000 Years cal BP Open
Early researchers of radiocarbon levels in Southern Hemisphere tree rings identified a variable North-South hemispheric offset, necessitating construction of a separate radiocarbon calibration curve for the South. We present here SHCal20, …
View article: Findings from an in-Depth Annual Tree-Ring Radiocarbon Intercomparison
Findings from an in-Depth Annual Tree-Ring Radiocarbon Intercomparison Open
The radiocarbon ( 14 C) calibration curve so far contains annually resolved data only for a short period of time. With accelerator mass spectrometry (AMS) matching the precision of decay counting, it is now possible to efficiently produce …
View article: The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)
The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP) Open
Radiocarbon ( 14 C) ages cannot provide absolutely dated chronologies for archaeological or paleoenvironmental studies directly but must be converted to calendar age equivalents using a calibration curve compensating for fluctuations in at…
View article: RDC volume 62 issue 4 Cover and Front matter
RDC volume 62 issue 4 Cover and Front matter Open
An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.
View article: RDC volume 61 issue 5 Cover and Front matter
RDC volume 61 issue 5 Cover and Front matter Open
An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.
View article: RDC volume 61 issue 4 Cover and Front matter
RDC volume 61 issue 4 Cover and Front matter Open
An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.
View article: Redating the earliest evidence of the mid-Holocene relative sea-level highstand in Australia and implications for global sea-level rise
Redating the earliest evidence of the mid-Holocene relative sea-level highstand in Australia and implications for global sea-level rise Open
Reconstructing past sea levels can help constrain uncertainties surrounding the rate of change, magnitude, and impacts of the projected increase through the 21st century. Of significance is the mid-Holocene relative sea-level highstand in …
View article: Investigating Subantarctic<sup>14</sup>C Ages of Different Peat Components: Site and Sample Selection for Developing Robust Age Models in Dynamic Landscapes
Investigating Subantarctic<sup>14</sup>C Ages of Different Peat Components: Site and Sample Selection for Developing Robust Age Models in Dynamic Landscapes Open
Precise radiocarbon ( 14 C) dating of sedimentary sequences is important for developing robust chronologies of environmental change, but sampling of suitable components can be challenging in highly dynamic landscapes. Here we investigate r…
View article: The Influence of Calibration Curve Construction and Composition on the Accuracy and Precision of Radiocarbon Wiggle-Matching of Tree Rings, Illustrated by Southern Hemisphere Atmospheric Data Sets from AD 1500–1950
The Influence of Calibration Curve Construction and Composition on the Accuracy and Precision of Radiocarbon Wiggle-Matching of Tree Rings, Illustrated by Southern Hemisphere Atmospheric Data Sets from AD 1500–1950 Open
This research investigates two factors influencing the ability of tree-ring data to provide accurate 14 C calibration information: the fitness and rigor of the statistical model used to combine the data into a curve; and the accuracy, prec…
View article: Pleistocene glacial history of the New Zealand subantarctic islands
Pleistocene glacial history of the New Zealand subantarctic islands Open
The New Zealand subantarctic islands of Auckland and Campbell, situated between the subtropical front and the Antarctic Convergence in the Pacific sector of the Southern Ocean, provide valuable terrestrial records from a globally important…
View article: Dendroarchaeology in New Zealand: extending the range of archaeologically useful species beyond kauri (Agathis australis)
Dendroarchaeology in New Zealand: extending the range of archaeologically useful species beyond kauri (Agathis australis) Open
Accurately establishing calendar dates for Māori wooden objects would place them in a secure temporal context and enable aspects of manufacturing and use to be explored within and between sites, and across time. Dendrochronology has the po…
View article: Correspondence: The Taupo eruption occurred in 232 ± 10 CE, and not later
Correspondence: The Taupo eruption occurred in 232 ± 10 CE, and not later Open
The Taupo eruption deposit is an isochronous marker bed that spans much of New Zealand’s North Island and pre-dates human arrival. Holdaway et al. (2018, Nature Comms 9, 4110) propose that the current Taupo eruption date is inaccurate and …
View article: Radiocarbon re-dating of contact-era Iroquoian history in northeastern North America
Radiocarbon re-dating of contact-era Iroquoian history in northeastern North America Open
Radiocarbon data suggest the need to reconsider current dates and assumptions for contact-era Iroquoian history.
View article: Evidence for increased expression of the Amundsen Sea Low over the South Atlantic during the late Holocene
Evidence for increased expression of the Amundsen Sea Low over the South Atlantic during the late Holocene Open
The Amundsen Sea Low (ASL) plays a major role in the climate and environment of Antarctica and the Southern Ocean, including surface air temperature and sea ice concentration changes. Unfortunately, a relative dearth of observational data …
View article: Glastonbury Lake Village Revisited: A Multi-proxy Palaeoenvironmental Investigation of an Iron Age Wetland Settlement
Glastonbury Lake Village Revisited: A Multi-proxy Palaeoenvironmental Investigation of an Iron Age Wetland Settlement Open
Glastonbury Lake Village is one of the most iconic late prehistoric wetland settlements in Europe. A new excavation in the core of Glastonbury Lake Village, for the first time since 1907, provided the opportunity for sampling of deposits a…
View article: Pleistocene glacial history of the New Zealand subantarctic islands
Pleistocene glacial history of the New Zealand subantarctic islands Open
The New Zealand subantarctic islands of Auckland and Campbell, situated between the Subtropical Front and the Antarctic Convergence in the Pacific sector of the Southern Ocean, provide valuable terrestrial records from a globally-important…