Chris Caseldine
Datos Biográficos
| ID | 1750796 |
|---|---|
| NOMBRE | Chris Caseldine |
| NOMBRES | Chris |
| APELLIDO | Caseldine |
| FIRMA | CASELDINE C |
| AFILIACIONES | University of Exeter |
| VERIFICADO | No |
| TOTAL DE OBRAS | 24 |
| TOTAL DE CITAS | 51 |
| TOTAL COMO AUTOR | 24 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1983 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2017 |
| ÍNDICE H | 4 |
Into the ocean
Into the ocean: vikings, Irish and environmental change in Iceland and the North." Environmental Archaeology, 22(3), pp. 337–338
Climatic variability during the last millennium in Western Iceland from lake sediment records
The aim of this research was to create a decadal-scale terrestrial quantitative palaeoclimate record for NW Iceland from lake sediments for the last millennium. Geochemical, stable isotope and chironomid reconstructions were obtained from a lake sequence constrained by tephra deposits on the Snæfellsnes peninsula, western Iceland. Obtaining a quantitative record proved problematic, but the qualitative chironomid record showed clear trends associa…
Pollen‐based quantitative reconstructions of Holocene regional vegetation cover (plant‐functional types and land‐cover types) in Europe suitable for climate modelling
We present quantitative reconstructions of regional vegetation cover in north‐western Europe, western Europe north of the Alps, and eastern Europe for five time windows in the Holocene [around 6k, 3k, 0.5k, 0.2k, and 0.05k calendar years before present ( bp )] at a 1° × 1° spatial scale with the objective of producing vegetation descriptions suitable for climate modelling. The REVEALS model was applied on 636 pollen records from lakes and bogs to…
A reply to ‘A meta-database of Holocene sediment cores for England
A meta-database of Holocene sediment cores for England
So what sort of climate do we want? Thoughts on how to decide what is 'natural' climate
As interest in climate geoengineering and the advertent manipulation of climate increases rapidly there is a tendency to overlook that we are already constructing current and future global climate through our use of greenhouse gases (GHGs). Any decisions on forms of geoengineering, enhanced or reduced GHG use will lead to a climate response and a global climate that is inevitably to some extent anthropogenically determined. It is therefore of val…
Visualising Sea-Level Rise at a Coastal Heritage Site
This paper describes a research project that aimed to translate complex spatial and scientific data about coastal change into accessible digital formats for general audiences. The project used fine-scale remote sensing techniques including airborne and terrestrial laser scanning to produce spatially accurate and realistic 3D digital visualisations of projected sea level rise at Cotehele Quay, a site on the River Tamar in Cornwall owned and manage…
Conceptions of time in (paleo)climate science and some implications
Palaeoscientists of necessity deal with time as a fundamental part of the research process and have developed understandings within the discipline of how to deal with a range of timescales from the deep time of Archaean geology to recent time, that is the last few centuries. Time has however largely been seen as providing a chronology, the ability to place events in sequence and through the implementation of various dating techniques to relate th…
A chironomid-based reconstruction of summer temperatures in NW Iceland since AD 1650
Few studies currently exist that aim to validate a proxy chironomid-temperature reconstruction with instrumental temperature measurements. We used a reconstruction from a chironomid percentage abundance data set to produce quantitative summer temperature estimates since AD 1650 for NW Iceland through a transfer function approach, and validated the record against instrumental temperature measurements from Stykkishólmur in western Iceland. The core…
Pushing the boundaries of data? Issues in the construction of rich visual past landscapes
Lacustrine evidence of early-Holocene environmental change in northern Iceland
Early-Holocene warming in Iceland caused rapid glacial ice melt which led to exposed landscapes on which soils developed and floras quickly established. Our chironomid-based records from northern Iceland suggest temperatures were up to 2—2.5°C warmer than present throughout the first two millennia post deglaciation (~10 500 to 8500 cal. BP) while sedimentary and isotopic data indicate the development of soils within the local environment througho…
Forum review
Towards rapid assay of cryptotephra in peat cores
Pollen modelling, palaeoecology and archaeology
A sediment-based multiproxy palaeoecological approach to the environmental archaeology of lake dwellings (crannogs), central Ireland
A multiproxy study of Ballywillin Crannog, Lough Kinale, central Ireland is presented. The methodology used reveals the wealth of information that a multiproxy approach can contribute in lake settlement studies. Plant macrofossils, pollen and spores, diatoms, chironomids and Coleoptera from a lake core are used to reconstruct local and regional vegetation change and lake history to establish the age and function of the crannog. The palaeoecologic…
A multiproxy approach to reconstructing surface wetness changes and prehistoric bog bursts in a raised mire system at Derryville Bog, Co. Tipperary, Ireland
Multiproxy analyses comprising peat stratigraphy, testate amoebae, pollen and humification analyses from four profiles across a complex raised mire system at Derryville Bog, Co. Tipperary, Ireland are used to demonstrate the surface wetness changes covering the period cal. BC 1500 to cal AD 1000, with special reference to a series of bog bursts identified within the stratigraphic record. Comparison of the proxies reveals varying levels and forms …
Paleohydrological Records from Peat Profiles and Speleothems in Sutherland, Northwest Scotland
Paleohydrological changes during the late Holocene are inferred from humification, testate amoebae, and pollen evidence from three blanket peat profiles in northwest Scotland. Replicate peat humification records from the Traligill basin share the same patterns of change for a 600-yr period of overlap between 1800 and 2400 cal yr B.P. The shared patterns, inferred from samples with a resolution of 5–13 yr, represent basinwide hydrological changes.…
A comparative study of optical properties of NaOH peat extracts
Assessment of the degree of decay of peat (humification) in ombrotrophic mires has become a standard technique for palaeoclimatic reconstruction, based on the finding that decay is primarily determined by surface wetness and temperature at the time of peat deposition. Determination of humification is undertaken by colorimetric measurement of an alkali extract of the peat at 540 nm. Humification is proportional to the amount of humic matter dissol…
A rapid, non-destructive scanning method for detecting distal tephra layers in peats
Rapid, automatic scanning of reflectance variations along peat profiles from Corlea, central Ireland, known to contain prehistoric tephra layers dated to around 2300 cal. bc, has enabled the detection of these layers by non-destructive means. By using both light reflectance and luminescence properties it is believed that very thin and often discontinuous distal tephras characteristic of the Late Quaternary in northwest Europe may be detected with…
Assessing the impact of volcanic activity on mid-Holocene climate in Ireland
Analyses of pollen, tephra, mineral input and degree of peat humification from three neighbouring raised peat profiles at Corlea, central Ireland, covering the period of the deposition of a tephra layer dated to just before 2290 cal. BC, and thought to represent Hekla-4 (2310±20 BC), are used to show the problems of relying on data from a single profile when invoking relationships between volcanic activity, climate and ecosys-tem response. While …
Little Ice Age' glaciation of Tröllaskagi peninsula, northern Iceland
Comparison of the equilibrium line altitudes (ELAS) for the present (1980s) and the maximum 'Little Ice Age' depression determined for glaciers in the Skíõadalur/Svarfaõardalur area of the Tröllaskagi peninsula, northern Iceland, shows a rise of c. 50 m over the last 100-150 years. Meteoro logical data suggest that over the same period the mean summer temperature at the equilibrium line changed by at least 2.0°C. Application of a model of the rel…
Anthropogenic indicators in pollen diagrams
The Extent of Some Glaciers in Northern Iceland during the Little Ice Age and the Nature of Recent Deglaciation
Lichenometric studies from four glaciers in Northern Iceland are used to determine the dates of their Little Ice Age maxima. In all cases these date to the last half of the nineteenth century and probably marked the maximum Neoglacial extent of the glaciers. Comparison of the pattern of subsequent deglaciation and meteorological records from the area indicates a likely relationship between changes in the mass balance of glaciers in Northern Icela…
Resurvey of the margins of Gljúfurárjökull and the chronology of recent deglaciation (Endurmæling á jaðri Gljúfurárjökuls)
Pollen modelling, palaeoecology and archaeology
The Extent of Some Glaciers in Northern Iceland during the Little Ice Age and the Nature of Recent Deglaciation
Lichenometric studies from four glaciers in Northern Iceland are used to determine the dates of their Little Ice Age maxima. In all cases these date to the last half of the nineteenth century and probably marked the maximum Neoglacial extent of the glaciers. Comparison of the pattern of subsequent deglaciation and meteorological records from the area indicates a likely relationship between changes in the mass balance of glaciers in Northern Icela…
A comparative study of optical properties of NaOH peat extracts
Assessment of the degree of decay of peat (humification) in ombrotrophic mires has become a standard technique for palaeoclimatic reconstruction, based on the finding that decay is primarily determined by surface wetness and temperature at the time of peat deposition. Determination of humification is undertaken by colorimetric measurement of an alkali extract of the peat at 540 nm. Humification is proportional to the amount of humic matter dissol…
A sediment-based multiproxy palaeoecological approach to the environmental archaeology of lake dwellings (crannogs), central Ireland
A multiproxy study of Ballywillin Crannog, Lough Kinale, central Ireland is presented. The methodology used reveals the wealth of information that a multiproxy approach can contribute in lake settlement studies. Plant macrofossils, pollen and spores, diatoms, chironomids and Coleoptera from a lake core are used to reconstruct local and regional vegetation change and lake history to establish the age and function of the crannog. The palaeoecologic…
So what sort of climate do we want? Thoughts on how to decide what is 'natural' climate
As interest in climate geoengineering and the advertent manipulation of climate increases rapidly there is a tendency to overlook that we are already constructing current and future global climate through our use of greenhouse gases (GHGs). Any decisions on forms of geoengineering, enhanced or reduced GHG use will lead to a climate response and a global climate that is inevitably to some extent anthropogenically determined. It is therefore of val…
Assessing the impact of volcanic activity on mid-Holocene climate in Ireland
Analyses of pollen, tephra, mineral input and degree of peat humification from three neighbouring raised peat profiles at Corlea, central Ireland, covering the period of the deposition of a tephra layer dated to just before 2290 cal. BC, and thought to represent Hekla-4 (2310±20 BC), are used to show the problems of relying on data from a single profile when invoking relationships between volcanic activity, climate and ecosys-tem response. While …
Little Ice Age' glaciation of Tröllaskagi peninsula, northern Iceland
Comparison of the equilibrium line altitudes (ELAS) for the present (1980s) and the maximum 'Little Ice Age' depression determined for glaciers in the Skíõadalur/Svarfaõardalur area of the Tröllaskagi peninsula, northern Iceland, shows a rise of c. 50 m over the last 100-150 years. Meteoro logical data suggest that over the same period the mean summer temperature at the equilibrium line changed by at least 2.0°C. Application of a model of the rel…
Climatic variability during the last millennium in Western Iceland from lake sediment records
The aim of this research was to create a decadal-scale terrestrial quantitative palaeoclimate record for NW Iceland from lake sediments for the last millennium. Geochemical, stable isotope and chironomid reconstructions were obtained from a lake sequence constrained by tephra deposits on the Snæfellsnes peninsula, western Iceland. Obtaining a quantitative record proved problematic, but the qualitative chironomid record showed clear trends associa…
Conceptions of time in (paleo)climate science and some implications
Palaeoscientists of necessity deal with time as a fundamental part of the research process and have developed understandings within the discipline of how to deal with a range of timescales from the deep time of Archaean geology to recent time, that is the last few centuries. Time has however largely been seen as providing a chronology, the ability to place events in sequence and through the implementation of various dating techniques to relate th…
A reply to ‘A meta-database of Holocene sediment cores for England
A meta-database of Holocene sediment cores for England
Visualising Sea-Level Rise at a Coastal Heritage Site
This paper describes a research project that aimed to translate complex spatial and scientific data about coastal change into accessible digital formats for general audiences. The project used fine-scale remote sensing techniques including airborne and terrestrial laser scanning to produce spatially accurate and realistic 3D digital visualisations of projected sea level rise at Cotehele Quay, a site on the River Tamar in Cornwall owned and manage…
Lacustrine evidence of early-Holocene environmental change in northern Iceland
Early-Holocene warming in Iceland caused rapid glacial ice melt which led to exposed landscapes on which soils developed and floras quickly established. Our chironomid-based records from northern Iceland suggest temperatures were up to 2—2.5°C warmer than present throughout the first two millennia post deglaciation (~10 500 to 8500 cal. BP) while sedimentary and isotopic data indicate the development of soils within the local environment througho…
A multiproxy approach to reconstructing surface wetness changes and prehistoric bog bursts in a raised mire system at Derryville Bog, Co. Tipperary, Ireland
Multiproxy analyses comprising peat stratigraphy, testate amoebae, pollen and humification analyses from four profiles across a complex raised mire system at Derryville Bog, Co. Tipperary, Ireland are used to demonstrate the surface wetness changes covering the period cal. BC 1500 to cal AD 1000, with special reference to a series of bog bursts identified within the stratigraphic record. Comparison of the proxies reveals varying levels and forms …
A rapid, non-destructive scanning method for detecting distal tephra layers in peats
Rapid, automatic scanning of reflectance variations along peat profiles from Corlea, central Ireland, known to contain prehistoric tephra layers dated to around 2300 cal. bc, has enabled the detection of these layers by non-destructive means. By using both light reflectance and luminescence properties it is believed that very thin and often discontinuous distal tephras characteristic of the Late Quaternary in northwest Europe may be detected with…
Resurvey of the margins of Gljúfurárjökull and the chronology of recent deglaciation (Endurmæling á jaðri Gljúfurárjökuls)
The Extent of Some Glaciers in Northern Iceland during the Little Ice Age and the Nature of Recent Deglaciation
Lichenometric studies from four glaciers in Northern Iceland are used to determine the dates of their Little Ice Age maxima. In all cases these date to the last half of the nineteenth century and probably marked the maximum Neoglacial extent of the glaciers. Comparison of the pattern of subsequent deglaciation and meteorological records from the area indicates a likely relationship between changes in the mass balance of glaciers in Northern Icela…
Anthropogenic indicators in pollen diagrams
Little Ice Age' glaciation of Tröllaskagi peninsula, northern Iceland
Comparison of the equilibrium line altitudes (ELAS) for the present (1980s) and the maximum 'Little Ice Age' depression determined for glaciers in the Skíõadalur/Svarfaõardalur area of the Tröllaskagi peninsula, northern Iceland, shows a rise of c. 50 m over the last 100-150 years. Meteoro logical data suggest that over the same period the mean summer temperature at the equilibrium line changed by at least 2.0°C. Application of a model of the rel…
Assessing the impact of volcanic activity on mid-Holocene climate in Ireland
Analyses of pollen, tephra, mineral input and degree of peat humification from three neighbouring raised peat profiles at Corlea, central Ireland, covering the period of the deposition of a tephra layer dated to just before 2290 cal. BC, and thought to represent Hekla-4 (2310±20 BC), are used to show the problems of relying on data from a single profile when invoking relationships between volcanic activity, climate and ecosys-tem response. While …
A rapid, non-destructive scanning method for detecting distal tephra layers in peats
Rapid, automatic scanning of reflectance variations along peat profiles from Corlea, central Ireland, known to contain prehistoric tephra layers dated to around 2300 cal. bc, has enabled the detection of these layers by non-destructive means. By using both light reflectance and luminescence properties it is believed that very thin and often discontinuous distal tephras characteristic of the Late Quaternary in northwest Europe may be detected with…
A comparative study of optical properties of NaOH peat extracts
Assessment of the degree of decay of peat (humification) in ombrotrophic mires has become a standard technique for palaeoclimatic reconstruction, based on the finding that decay is primarily determined by surface wetness and temperature at the time of peat deposition. Determination of humification is undertaken by colorimetric measurement of an alkali extract of the peat at 540 nm. Humification is proportional to the amount of humic matter dissol…
Paleohydrological Records from Peat Profiles and Speleothems in Sutherland, Northwest Scotland
Paleohydrological changes during the late Holocene are inferred from humification, testate amoebae, and pollen evidence from three blanket peat profiles in northwest Scotland. Replicate peat humification records from the Traligill basin share the same patterns of change for a 600-yr period of overlap between 1800 and 2400 cal yr B.P. The shared patterns, inferred from samples with a resolution of 5–13 yr, represent basinwide hydrological changes.…
A sediment-based multiproxy palaeoecological approach to the environmental archaeology of lake dwellings (crannogs), central Ireland
A multiproxy study of Ballywillin Crannog, Lough Kinale, central Ireland is presented. The methodology used reveals the wealth of information that a multiproxy approach can contribute in lake settlement studies. Plant macrofossils, pollen and spores, diatoms, chironomids and Coleoptera from a lake core are used to reconstruct local and regional vegetation change and lake history to establish the age and function of the crannog. The palaeoecologic…
A multiproxy approach to reconstructing surface wetness changes and prehistoric bog bursts in a raised mire system at Derryville Bog, Co. Tipperary, Ireland
Multiproxy analyses comprising peat stratigraphy, testate amoebae, pollen and humification analyses from four profiles across a complex raised mire system at Derryville Bog, Co. Tipperary, Ireland are used to demonstrate the surface wetness changes covering the period cal. BC 1500 to cal AD 1000, with special reference to a series of bog bursts identified within the stratigraphic record. Comparison of the proxies reveals varying levels and forms …
Pollen modelling, palaeoecology and archaeology
Towards rapid assay of cryptotephra in peat cores
Pushing the boundaries of data? Issues in the construction of rich visual past landscapes
Lacustrine evidence of early-Holocene environmental change in northern Iceland
Early-Holocene warming in Iceland caused rapid glacial ice melt which led to exposed landscapes on which soils developed and floras quickly established. Our chironomid-based records from northern Iceland suggest temperatures were up to 2—2.5°C warmer than present throughout the first two millennia post deglaciation (~10 500 to 8500 cal. BP) while sedimentary and isotopic data indicate the development of soils within the local environment througho…
Forum review
A chironomid-based reconstruction of summer temperatures in NW Iceland since AD 1650
Few studies currently exist that aim to validate a proxy chironomid-temperature reconstruction with instrumental temperature measurements. We used a reconstruction from a chironomid percentage abundance data set to produce quantitative summer temperature estimates since AD 1650 for NW Iceland through a transfer function approach, and validated the record against instrumental temperature measurements from Stykkishólmur in western Iceland. The core…
Conceptions of time in (paleo)climate science and some implications
Palaeoscientists of necessity deal with time as a fundamental part of the research process and have developed understandings within the discipline of how to deal with a range of timescales from the deep time of Archaean geology to recent time, that is the last few centuries. Time has however largely been seen as providing a chronology, the ability to place events in sequence and through the implementation of various dating techniques to relate th…
Visualising Sea-Level Rise at a Coastal Heritage Site
This paper describes a research project that aimed to translate complex spatial and scientific data about coastal change into accessible digital formats for general audiences. The project used fine-scale remote sensing techniques including airborne and terrestrial laser scanning to produce spatially accurate and realistic 3D digital visualisations of projected sea level rise at Cotehele Quay, a site on the River Tamar in Cornwall owned and manage…
Pollen‐based quantitative reconstructions of Holocene regional vegetation cover (plant‐functional types and land‐cover types) in Europe suitable for climate modelling
We present quantitative reconstructions of regional vegetation cover in north‐western Europe, western Europe north of the Alps, and eastern Europe for five time windows in the Holocene [around 6k, 3k, 0.5k, 0.2k, and 0.05k calendar years before present ( bp )] at a 1° × 1° spatial scale with the objective of producing vegetation descriptions suitable for climate modelling. The REVEALS model was applied on 636 pollen records from lakes and bogs to…
A reply to ‘A meta-database of Holocene sediment cores for England
A meta-database of Holocene sediment cores for England
So what sort of climate do we want? Thoughts on how to decide what is 'natural' climate
As interest in climate geoengineering and the advertent manipulation of climate increases rapidly there is a tendency to overlook that we are already constructing current and future global climate through our use of greenhouse gases (GHGs). Any decisions on forms of geoengineering, enhanced or reduced GHG use will lead to a climate response and a global climate that is inevitably to some extent anthropogenically determined. It is therefore of val…
Climatic variability during the last millennium in Western Iceland from lake sediment records
The aim of this research was to create a decadal-scale terrestrial quantitative palaeoclimate record for NW Iceland from lake sediments for the last millennium. Geochemical, stable isotope and chironomid reconstructions were obtained from a lake sequence constrained by tephra deposits on the Snæfellsnes peninsula, western Iceland. Obtaining a quantitative record proved problematic, but the qualitative chironomid record showed clear trends associa…
Into the ocean
Into the ocean: vikings, Irish and environmental change in Iceland and the North." Environmental Archaeology, 22(3), pp. 337–338
Geography (18 obras) · Geology and Paleoclimatology Research (18 obras) · Geology (16 obras) · Physical geography (13 obras) · Archaeology (12 obras) · Holocene (11 obras) · Paleontology (9 obras) · Climate change (7 obras) · Oceanography (7 obras) · Ecology (6 obras)