FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2890707130> ?p ?o ?g. }

• W2890707130 abstract "Wind erosion is recognised as an important issue globally. It is of importance in Australia due to a large proportion of the continent being classed as arid to semi-arid. With increases in land use and projected increases in the frequency and intensity of drought periods in Australia, wind erosion may be seen to increase, intensify and expand across the continent. Additionally, increases in the severity of annual to inter-annual climate systems (such as the El Nino Southern Oscillation (ENSO), the Southern Annual Mode (SAM), the Indian Ocean Dipole (IOD)) and even in overarching decadal to inter-decadal climate systems (such as the Interdecadal Pacific Oscillation (IPO) and the Pacific Decadal Oscillation (PDO)) will result in the spatial and temporal impacts of wind erosion being altered over time. Variations in drought and climate systems are recognised to affect wind erosion in Australia due to their influences on precipitation and erosive wind systems.Literature in the field of drought, wind erosion and climate systems was reviewed with respect to framing the need for this dissertation. It was identified that although a detailed understanding of drought has been developed over time (including definitions, impacts and influences) there are still challenges associated with the lack of uniform definition and with measures of severity, scale and overall prediction. Few wind erosion studies have focused on the impact that drought may have (and its flow-on effects to other wind erosion variables such as vegetation), particularly with respect to changes in response to climate. Climate systems research presents another layer of complexity to measuring or predicting wind erosion in Australia.This dissertation explores the role of drought and climate systems in wind erosion in eastern Australia (over the past 100 years), comparing a calculation of the potential for wind erosion with actual wind erosion (AWE) measures. It selects and adapts a drought index suitable for use in wind erosion studies and estimates the wind erosion potential (WEP) of eight drought periods, incorporating measures of soil erodibility and wind erosivity. It also evaluates why actual wind erosion rates (according to three different measures) differ to results produced by the WEP and examines how climate systems (the ENSO, SAM and IOD) and synoptic-scale systems influence wind erosion during the drought periods.Two drought indices (rainfall deciles (RD) and the Standardized Precipitation Index (SPI)) were assessed according to seven criteria developed to evaluate the favourability of indices for use in wind erosion studies. The SPI was selected as the most favourable due to its ability to identify the start and end dates of drought, provide measures of drought intensity, magnitude and severity and best capture wind erosion activity. The SPI was adapted and enhanced for the calculation of WEP using established factors of drought, erodibility (vegetation cover) and erosivity (wind speed) and applied to historical data (over 100 years from the consolidation of 63 observer stations into 22 stations in eastern Australia. Differences in results were evident for northeastern Australia (NEA) and southeastern Australia (SEA), reflecting varying short and longer term climatic influences. At a localised level wind severity, vegetative cover types and geomorphological features were able to explain differences. Specific climate systems phases (negative ENSO, negative SAM and positive IOD) occurring drought periods were found to favour wind erosion activity (both in NEA and SEA). A combination lock of climate system phase and wind erosion risk was developed to provide a conceptual understanding of the influence of climate systems on wind erosion during drought periods in Australia. This conceptual approach is unique to this dissertation, constituting an original innovation in the field of wind erosion research during drought and climate system studies in general. Combinations of climate system phases and associated wind erosion risk were presented for eight combinatoric scenarios, with highest wind erosion risk associated with negative ENSO, negative SAM and positive IOD. These combinations were demonstrated to have differing impacts according to location on the Australian continent due to differing synoptic-scale system dominance (trough systems in the north and cold fronts in the south).This dissertation has confirmed the important role that climate systems have on wind erosion during drought periods in eastern Australia. Its results have new implications for research in the field of wind erosion. It demonstrates a method of measuring drought from a wind erosion perspective and develops a way of both estimating wind erosion potential risk and investigating wind erosion activity from the lens of climate systems. The combination lock approach to climate systems and wind erosion during drought periods provides a conceptual advance in the climatological and meteorological understanding of wind erosion activity (spatially and temporally). Furthermore, at a time when the future impacts of drought and climate systems are predicted to intensify in severity and spatial scale, this research could provide a way for aeolian geomorphologists and land managers to predict the risk of wind erosion occurrence." @default.
• W2890707130 created "2018-09-27" @default.
• W2890707130 creator A5006718253 @default.
• W2890707130 date "2017-08-01" @default.
• W2890707130 modified "2023-09-23" @default.
• W2890707130 title "Not all droughts are equal: understanding the climate drivers of wind erosion (ENSO, SAM and IOD)" @default.
• W2890707130 doi "https://doi.org/10.25904/1912/484" @default.
• W2890707130 hasPublicationYear "2017" @default.
• W2890707130 type Work @default.
• W2890707130 sameAs 2890707130 @default.
• W2890707130 citedByCount "0" @default.
• W2890707130 crossrefType "dissertation" @default.
• W2890707130 hasAuthorship W2890707130A5006718253 @default.
• W2890707130 hasConcept C107054158 @default.
• W2890707130 hasConcept C111368507 @default.
• W2890707130 hasConcept C114793014 @default.
• W2890707130 hasConcept C127313418 @default.
• W2890707130 hasConcept C132651083 @default.
• W2890707130 hasConcept C150772632 @default.
• W2890707130 hasConcept C151730666 @default.
• W2890707130 hasConcept C153294291 @default.
• W2890707130 hasConcept C154808844 @default.
• W2890707130 hasConcept C180093795 @default.
• W2890707130 hasConcept C205649164 @default.
• W2890707130 hasConcept C39432304 @default.
• W2890707130 hasConcept C49204034 @default.
• W2890707130 hasConcept C507956050 @default.
• W2890707130 hasConceptScore W2890707130C107054158 @default.
• W2890707130 hasConceptScore W2890707130C111368507 @default.
• W2890707130 hasConceptScore W2890707130C114793014 @default.
• W2890707130 hasConceptScore W2890707130C127313418 @default.
• W2890707130 hasConceptScore W2890707130C132651083 @default.
• W2890707130 hasConceptScore W2890707130C150772632 @default.
• W2890707130 hasConceptScore W2890707130C151730666 @default.
• W2890707130 hasConceptScore W2890707130C153294291 @default.
• W2890707130 hasConceptScore W2890707130C154808844 @default.
• W2890707130 hasConceptScore W2890707130C180093795 @default.
• W2890707130 hasConceptScore W2890707130C205649164 @default.
• W2890707130 hasConceptScore W2890707130C39432304 @default.
• W2890707130 hasConceptScore W2890707130C49204034 @default.
• W2890707130 hasConceptScore W2890707130C507956050 @default.
• W2890707130 hasLocation W28907071301 @default.
• W2890707130 hasOpenAccess W2890707130 @default.
• W2890707130 hasPrimaryLocation W28907071301 @default.
• W2890707130 hasRelatedWork W1499432452 @default.
• W2890707130 hasRelatedWork W1542690950 @default.
• W2890707130 hasRelatedWork W1971769568 @default.
• W2890707130 hasRelatedWork W1981407003 @default.
• W2890707130 hasRelatedWork W2044486053 @default.
• W2890707130 hasRelatedWork W2061034719 @default.
• W2890707130 hasRelatedWork W2167182224 @default.
• W2890707130 hasRelatedWork W2385152398 @default.
• W2890707130 hasRelatedWork W2528259985 @default.
• W2890707130 hasRelatedWork W2593832582 @default.
• W2890707130 hasRelatedWork W2594985162 @default.
• W2890707130 hasRelatedWork W2622848780 @default.
• W2890707130 hasRelatedWork W2754677094 @default.
• W2890707130 hasRelatedWork W2767270022 @default.
• W2890707130 hasRelatedWork W2782160827 @default.
• W2890707130 hasRelatedWork W2907818715 @default.
• W2890707130 hasRelatedWork W2969275733 @default.
• W2890707130 hasRelatedWork W2973834479 @default.
• W2890707130 hasRelatedWork W3012994627 @default.
• W2890707130 hasRelatedWork W3187392242 @default.
• W2890707130 isParatext "false" @default.
• W2890707130 isRetracted "false" @default.
• W2890707130 magId "2890707130" @default.
• W2890707130 workType "dissertation" @default.