Of Moss and Microclimate. Spatial variation in microclimate of Antarctic moss beds: quantification, prediction, and importance for moss health and physiology
There is a general lack of biologically relevant climate data to facilitate ecological research in Antarctica. Climate data that exist for Antarctic regions are derived from satellite and automated weather station observations. However, the climate conditions at ground level, where the bulk of Antar...
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School of Earth, Atmospheric and Life Sciences
2022
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ftunivwollongong:oai:ro.uow.edu.au:theses1-2779 2024-05-12T07:56:39+00:00 Of Moss and Microclimate. Spatial variation in microclimate of Antarctic moss beds: quantification, prediction, and importance for moss health and physiology Randall, Krystal Louise 2022-01-01T08:00:00Z application/pdf https://ro.uow.edu.au/theses1/1780 https://ro.uow.edu.au/context/theses1/article/2779/viewcontent/01Whole.pdf unknown School of Earth, Atmospheric and Life Sciences https://ro.uow.edu.au/theses1/1780 https://ro.uow.edu.au/context/theses1/article/2779/viewcontent/01Whole.pdf University of Wollongong Thesis Collection 2017+ microclimate microclimate model micro-topography Antarctic moss text 2022 ftunivwollongong 2024-04-17T14:04:37Z There is a general lack of biologically relevant climate data to facilitate ecological research in Antarctica. Climate data that exist for Antarctic regions are derived from satellite and automated weather station observations. However, the climate conditions at ground level, where the bulk of Antarctica’s terrestrial biodiversity lives, often vary considerably from those at or above weather station height. Climate data at this finer scale at or beneath the ground surface in the thermal boundary layer (termed microclimate), are poorly represented by meteorological climate data. Currently, ground-level microclimate variation in Antarctic regions is extremely difficult to predict through modelling techniques. The dominant terrestrial plant life in Antarctica are mosses which form turfs that display highly variable micro-topography. Such turfs can play a large role in biogeochemical cycling and permafrost insulation with associated links to microclimate and moss health, however these links are poorly understood due to a lack of quantitative and spatially explicit data at a relevant scale. Furthermore, the soil insulation properties of moss cover in permafrost regions are poorly understood and often mis-represented in climate models, leading to erroneous predictions of soil temperatures and permafrost thaw rates for alpine, Arctic and Antarctic regions. In this thesis, I address these knowledge and methodological gaps and present a range of novel fieldwork, modelling and experimental methodologies to quantify spatially explicit links between micro-topography, microclimate and moss health and physiology over centimetre scales for moss turfs in Maritime Antarctica. Additionally, I present a method for generating Antarctic ground surface/moss canopy microclimate data at a centimetre resolution without the need for empirical microclimate data to fit the model. Lastly, I use a novel experimental method to explore mechanisms involved in creating ground surface and soil microclimate variation in moss covered soils, ... Text Antarc* Antarctic Antarctica Arctic permafrost University of Wollongong, Australia: Research Online Arctic Antarctic |
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University of Wollongong, Australia: Research Online |
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microclimate microclimate model micro-topography Antarctic moss |
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microclimate microclimate model micro-topography Antarctic moss Randall, Krystal Louise Of Moss and Microclimate. Spatial variation in microclimate of Antarctic moss beds: quantification, prediction, and importance for moss health and physiology |
topic_facet |
microclimate microclimate model micro-topography Antarctic moss |
description |
There is a general lack of biologically relevant climate data to facilitate ecological research in Antarctica. Climate data that exist for Antarctic regions are derived from satellite and automated weather station observations. However, the climate conditions at ground level, where the bulk of Antarctica’s terrestrial biodiversity lives, often vary considerably from those at or above weather station height. Climate data at this finer scale at or beneath the ground surface in the thermal boundary layer (termed microclimate), are poorly represented by meteorological climate data. Currently, ground-level microclimate variation in Antarctic regions is extremely difficult to predict through modelling techniques. The dominant terrestrial plant life in Antarctica are mosses which form turfs that display highly variable micro-topography. Such turfs can play a large role in biogeochemical cycling and permafrost insulation with associated links to microclimate and moss health, however these links are poorly understood due to a lack of quantitative and spatially explicit data at a relevant scale. Furthermore, the soil insulation properties of moss cover in permafrost regions are poorly understood and often mis-represented in climate models, leading to erroneous predictions of soil temperatures and permafrost thaw rates for alpine, Arctic and Antarctic regions. In this thesis, I address these knowledge and methodological gaps and present a range of novel fieldwork, modelling and experimental methodologies to quantify spatially explicit links between micro-topography, microclimate and moss health and physiology over centimetre scales for moss turfs in Maritime Antarctica. Additionally, I present a method for generating Antarctic ground surface/moss canopy microclimate data at a centimetre resolution without the need for empirical microclimate data to fit the model. Lastly, I use a novel experimental method to explore mechanisms involved in creating ground surface and soil microclimate variation in moss covered soils, ... |
format |
Text |
author |
Randall, Krystal Louise |
author_facet |
Randall, Krystal Louise |
author_sort |
Randall, Krystal Louise |
title |
Of Moss and Microclimate. Spatial variation in microclimate of Antarctic moss beds: quantification, prediction, and importance for moss health and physiology |
title_short |
Of Moss and Microclimate. Spatial variation in microclimate of Antarctic moss beds: quantification, prediction, and importance for moss health and physiology |
title_full |
Of Moss and Microclimate. Spatial variation in microclimate of Antarctic moss beds: quantification, prediction, and importance for moss health and physiology |
title_fullStr |
Of Moss and Microclimate. Spatial variation in microclimate of Antarctic moss beds: quantification, prediction, and importance for moss health and physiology |
title_full_unstemmed |
Of Moss and Microclimate. Spatial variation in microclimate of Antarctic moss beds: quantification, prediction, and importance for moss health and physiology |
title_sort |
of moss and microclimate. spatial variation in microclimate of antarctic moss beds: quantification, prediction, and importance for moss health and physiology |
publisher |
School of Earth, Atmospheric and Life Sciences |
publishDate |
2022 |
url |
https://ro.uow.edu.au/theses1/1780 https://ro.uow.edu.au/context/theses1/article/2779/viewcontent/01Whole.pdf |
geographic |
Arctic Antarctic |
geographic_facet |
Arctic Antarctic |
genre |
Antarc* Antarctic Antarctica Arctic permafrost |
genre_facet |
Antarc* Antarctic Antarctica Arctic permafrost |
op_source |
University of Wollongong Thesis Collection 2017+ |
op_relation |
https://ro.uow.edu.au/theses1/1780 https://ro.uow.edu.au/context/theses1/article/2779/viewcontent/01Whole.pdf |
_version_ |
1798836825304858624 |