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Full-Text Articles in Social and Behavioral Sciences
Ostracodos (Crustacea, Ostracoda) Y Carofitos (Chlorophyta, Charales) De La Formacion Desencuentro (Mioceno Superior), Provincia De La Rioja, Argentina, Gabriela Cusminsky, Adriana Garcia, Rafael Herbst
Ostracodos (Crustacea, Ostracoda) Y Carofitos (Chlorophyta, Charales) De La Formacion Desencuentro (Mioceno Superior), Provincia De La Rioja, Argentina, Gabriela Cusminsky, Adriana Garcia, Rafael Herbst
Faculty of Science - Papers (Archive)
Dust deposition in the Wollongong-Port Kembla region, New South Wales, Australia, arising from local industrial and mining activities, has been of major concern since the early 1960s. Reports dealing with dust deposition rates in the region have been published by different organisations where the data have been averaged for the region. This provides a general trend for the deposition rates for the whole region without considering the trends occurring in specific locations. This study was the first to examine the trends observed at 35 individual gauges to identify more localised trends in dust deposition rates in the Wollongong-Port Kembla region, …
Aeolian-Fluvial Interaction: Evidence For Late Quaternary Channel Change And Wind-Rift Linear Dune Formation In The Northwestern Simpson Desert, Australia, Gerald C. Nanson, Brian G. Jones, David M. Price, Tim Pietsch, C Bristow, Cameron B. Hollands
Aeolian-Fluvial Interaction: Evidence For Late Quaternary Channel Change And Wind-Rift Linear Dune Formation In The Northwestern Simpson Desert, Australia, Gerald C. Nanson, Brian G. Jones, David M. Price, Tim Pietsch, C Bristow, Cameron B. Hollands
Faculty of Science - Papers (Archive)
In central Australia the most easterly extent of the MacDonnell Ranges borders the northwestern Simpson Desert where widely spaced strike ridges intercept the regional linear dunefield. Topographic basins have disrupted regional drainage lines and isolated dune sets from the main dunefield. In the western part of Camel Flat basin large, red coloured linear dunes of fine sand, ~ 74 ka and older, are oriented almost due north. Through gaps in the ranges the Todd River traversed the eastern part of the basin until ~25 ka when it apparently avulsed ~25 km eastwards to its present position. Subsequently, linear dunes, smaller, …
New U-Pb Shrimp Zircon Ages For Pre-Variscan Orthogneisses From Portugal And Their Bearing On The Evolution Of The Ossa-Morena Tectonic Zone, Umberto G. Cordani, Allen Phillip Nutman, Antonio S. Andrade, Jose F. Santos, Maria Do Rosario Azevedo, Maria Helena Mendes, Manuel S. Pinto
New U-Pb Shrimp Zircon Ages For Pre-Variscan Orthogneisses From Portugal And Their Bearing On The Evolution Of The Ossa-Morena Tectonic Zone, Umberto G. Cordani, Allen Phillip Nutman, Antonio S. Andrade, Jose F. Santos, Maria Do Rosario Azevedo, Maria Helena Mendes, Manuel S. Pinto
Faculty of Science - Papers (Archive)
New SHRIMP U-Pb zircon ages for the Portalegre and Alcáçovas orthogneisses document a complex pre-Variscan history for the Iberian basement in Portugal. The available geochemical and geochronological data for the Alcáçovas orthogneiss (ca. 540 Ma) tend to favor its involvement in a Cadomian orogenic event. This is consistent with the development of an active continental margin setting at the end of the Proterozoic and supports a Gondwanan provenance for the Iberian crust. On the other hand, the Ordovician emplacement age obtained for the magmatic precursors of the Portalegre orthogneisses (497 ± 10 Ma) provides additional evidence for the occurrence of …
Investigation Of Large-Scale Washover Of A Small Barrier System On The Southeast Australian Coast Using Ground Penetrating Radar, Brian G. Jones, C Bristow, Adam D. Switzer
Investigation Of Large-Scale Washover Of A Small Barrier System On The Southeast Australian Coast Using Ground Penetrating Radar, Brian G. Jones, C Bristow, Adam D. Switzer
Faculty of Science - Papers (Archive)
Prehistoric depositional signatures for large-scale washover involving marine inundation events such as storm and tsunami have been the subject of considerable research over the last 15 years. Much of this research has focused on the identification of sand sheets in back-barrier environments as depositional records for extreme washover events. All these deposits must have a sediment source, and by their nature, the most likely source of sediment for washover into back-barrier environments is the barrier itself. This study identifies an erosional signature for large-scale washover from a small coastal barrier on the southeast Australian coast. A distinct lense of marine …
First Detection Of Meso-Thermospheric Nitric Oxide (No) By Ground-Based Ftir Solar Absorption Spectroscopy, Aldona Wiacek, Nicholas B. Jones, K Strong, J R. Taylor, Richard L. Mittermeier, Hans Fast
First Detection Of Meso-Thermospheric Nitric Oxide (No) By Ground-Based Ftir Solar Absorption Spectroscopy, Aldona Wiacek, Nicholas B. Jones, K Strong, J R. Taylor, Richard L. Mittermeier, Hans Fast
Faculty of Science - Papers (Archive)
We report the first detection of mesospheric-lower thermospheric (MLT, 50–130 km) NO from ground-based FTIR solar absorption spectra using Lorentz- and Doppler-broadened solar absorption lines in the stratosphere and in the MLT, respectively. We present the first characterization of vertical sensitivity in the FTIR NO retrieval and show that MLT NO partial columns can be retrieved with ~1 independent piece of information using a climatological NO profile extending up to 130 km. The information content analysis also improves the characterization of stratospheric partial column retrievals and is relevant to NO results obtained at other Network for the Detection of Stratospheric …
Antiquity Of The Oceans And Continents, Allen Phillip Nutman
Antiquity Of The Oceans And Continents, Allen Phillip Nutman
Faculty of Science - Papers (Archive)
Tracing the origin of the oceans and the division of the crust into distinct oceanic and continental realms relies on incomplete information from tiny vestiges of surviving oldest crust (>3.6 billions years old). Billions of years of tectonism, melting and erosion have obliterated the rest of that crust. Oceans and continental crust already existed almost four billion years ago because water-laid sedimentary rocks of this age have been found and because tonalites dominate in gneissic sequences dating from this period. Tonalites are igneous rocks produced by partial melting of hydrated basaltic crust at convergent plate boundaries. Collisional orogenic systems …
Comment On ‘‘Zircon Thermometer Reveals Minimum Melting Conditions On Earliest Earth’’ Ii, Allen Phillip Nutman
Comment On ‘‘Zircon Thermometer Reveals Minimum Melting Conditions On Earliest Earth’’ Ii, Allen Phillip Nutman
Faculty of Science - Papers (Archive)
No abstract provided.
Landscape Variability And The Response Of Asian Megadeltas To Environmental Change, Colin D. Woodroffe, Robert J. Nicholls, Yoshiki Saito, Zhongyuan Chen, S L. Goodbred
Landscape Variability And The Response Of Asian Megadeltas To Environmental Change, Colin D. Woodroffe, Robert J. Nicholls, Yoshiki Saito, Zhongyuan Chen, S L. Goodbred
Faculty of Science - Papers (Archive)
Deltas, occurring at the mouths of river systems that deposit sediments as they enter the sea, are some of the most dynamic sedimentary environments. They contain a long, and often economically significant, sedimentary record of their response to past episodes of climate and sea-level change. Geological investigation of these deposits, and the processes controlling sedimentation, provide insights into the response of deltas to environmental change, which in turn may offer rational and cost-effective strategies for the sustainable management of natural resources and land use in these dynamic systems in the face of future environmental change.
Cyclicity In The Nearshore Marine To Coastal, Lower Permian, Pebbley Beach Formation, Southern Sydney Basin, Australia: A Record Of Relative Sea-Level Fluctuations At The Close Of The Late Palaeozoic Gondwanan Ice Age, Brian G. Jones, Stuart C. Tye, James A. Maceachern, Kerrie L. Bann, Christopher R. Fielding
Cyclicity In The Nearshore Marine To Coastal, Lower Permian, Pebbley Beach Formation, Southern Sydney Basin, Australia: A Record Of Relative Sea-Level Fluctuations At The Close Of The Late Palaeozoic Gondwanan Ice Age, Brian G. Jones, Stuart C. Tye, James A. Maceachern, Kerrie L. Bann, Christopher R. Fielding
Faculty of Science - Papers (Archive)
The Lower Permian (Artinskian to Sakmarian) Pebbley Beach Formation of the southernmost Sydney Basin in New South Wales, Australia, records sediment accumulation in shallow marine to coastal environments at the close of the Late Palaeozoic Gondwanan ice age. This paper presents a sequence stratigraphic re-evaluation of the upper half of the unit based on the integration of sedimentology and ichnology. Ten facies are recognized, separated into two facies associations. Facies Association A (7 facies) comprises variably bioturbated siltstones and sandstones with marine body fossils, interpreted to record sediment accumulation in open marine environments ranging from lower offshore to middle shoreface …
The Geomorphological Evolution Of A Wave-Dominated Barrier Estuary: Burrill Lake, New South Wales, Australia, Brian G. Jones, Craig R. Sloss, David M. Price, C.E. Mcclennen, John De Carli
The Geomorphological Evolution Of A Wave-Dominated Barrier Estuary: Burrill Lake, New South Wales, Australia, Brian G. Jones, Craig R. Sloss, David M. Price, C.E. Mcclennen, John De Carli
Faculty of Science - Papers (Archive)
The geomorphological evolution of the Holocene wave-dominated barrier estuary at Burrill Lake on the New South Wales coast, Australia, has been delineated using a combination of seismic stratigraphy and the lithostratigraphic analysis of vibracores collected from the back-barrier estuarine environment. A combination of radiocarbon and aspartic acid racemisation-derived ages obtained on Holocene fossil molluscs, and the thermoluminescent signal in remnant Last Interglacial barrier sediments provides the chronological framework for this investigation. Results from this paper show that the barrier estuary occupies a relatively narrow (<1.5 km wide) and shallow (<40 m deep) incised bedrock valley formed during sea-level lowstands. Late Pleistocene sedimentary successions and remnants of the Last Interglacial barrier have been preserved within the incised valley axis and the mouth of the incised valley. These sediments, deposited during the Last Interglacial sea-level highstand, have subsequently been partially removed during the last glacial maximum. Overlying the antecedent late Pleistocene landsurface is a near basin-wide basal marine sand deposited in response to rising sea level associated with the most recent post-glacial marine transgression, which inundated the shallow incised valley ca.7800 years ago. More open marine conditions, with a diverse assemblage of estuarine and marine mollusc species, persisted until ca. 4500 years ago when the stabilizing Holocene barrier resulted in the development of a lowenergy back-barrier lagoonal environment. A late Holocene 1-2 m regression of sea level ca. 3000 years ago further restricted oceanic circulation, increased the rate of fluvial bay-head delta progradation and the extension of the backbarrier central basin mud facies. This evolutionary model of barrier estuary evolution developed for Burrill Lake is consistent with recent research conducted in Lake Illawarra and St Georges Basin and can be applied to other estuaries that have formed in relatively shallow and narrow incised bedrock valleys on tectonically stable, wave-dominated coastlines.
Development Of A Submerged Membrane Fungi Reactor For Textile Wastewater Treatment, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi
Development Of A Submerged Membrane Fungi Reactor For Textile Wastewater Treatment, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi
Faculty of Science - Papers (Archive)
A submerged microfiltration membrane bioreactor implementing the white-rot fungus Coriolus versicolor was developed for the treatment of textile dye wastewater following explorations with different fouling-prevention techniques. The optimum combination ensuring permeate quality and precluding membrane fouling comprises of placing a bundle of hollow fibers within a non-woven coarse-pore (50–200 μm) mesh cage, so as to avoid direct deposition of sludge onto it, together with arrangements for its periodic high-pressure back-washing (3 s/10 min) and chemical back-flushing (100 ml/m2, every third day). Under controlled temperature (29±1°C) and pH (4.5±0.2), and applied HRT and an average flux of 15 h and 0.021 …
Membrane Coupled Fungi Reactor - An Innovative Approach To Bioremediation Of Hazardous Dye Wastewater, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi
Membrane Coupled Fungi Reactor - An Innovative Approach To Bioremediation Of Hazardous Dye Wastewater, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi
Faculty of Science - Papers (Archive)
Virtually all the known physico-chemical and biological techniques have been explored for treatment of extremely recalcitrant dye wastewater; none, however, has emerged as a panacea. A single universally applicable end-of-pipe solution appears to be unrealistic, and combination of appropriate techniques is deemed imperative to devise technically and economically feasible options. An in-depth evaluation of wide range of potential hybrid technologies delineated in literature along with plausible analyses of available cost information has been furnished. In addition to underscoring the indispensability of hybrid technologies, this paper also endorses the inclusion of energy and water reuse plan within the treatment scheme, and …
Measurements Of Trace Gas Emissions From Australian Forest Fires And Correlations With Coincident Measurements Of Aerosol Optical Depth, Clare Paton-Walsh, N. B. Jones, Stephen R. Wilson, V Haverd, A. Meier, D. W. Griffith
Measurements Of Trace Gas Emissions From Australian Forest Fires And Correlations With Coincident Measurements Of Aerosol Optical Depth, Clare Paton-Walsh, N. B. Jones, Stephen R. Wilson, V Haverd, A. Meier, D. W. Griffith
Faculty of Science - Papers (Archive)
We present vertically integrated measurements of C2H2, C2H4, C2H6, HCOOH, CO, H2CO, HCN and NH3 through smoke plumes from Australian forest fires measured by ground-based solar absorption spectroscopy. The column amounts of these gases are highly correlated with simultaneous, co-located measurements of aerosol optical depth, providing a potential method of mapping biomass-burning emissions using satellite measurements of aerosol optical depth. We have calculated emission ratios relative to CO for the trace gases using aerosol optical depth as a proxy for CO and converted to emission factors by using an average emission factor for CO from literature measurements of extra-tropical forest …
Radiocarbon In Corals From The Cocos (Keeling) Islands And Implications For Indian Ocean Circulation, Q Hua, Colin D. Woodroffe, Scott Smithers, M Barbetti, David Fink
Radiocarbon In Corals From The Cocos (Keeling) Islands And Implications For Indian Ocean Circulation, Q Hua, Colin D. Woodroffe, Scott Smithers, M Barbetti, David Fink
Faculty of Science - Papers (Archive)
Annual bands of a Porites coral from the Cocos (Keeling) Islands, eastern Indian Ocean, were analysed by radiocarbon for 1955–1985 AD. A rapid oceanic response of the site to bomb 14C is found, with a maximum D14C value of 132% in 1975. This value is considerably higher than those for the northwestern Indian Ocean, suggesting that surface waters reaching Cocos are not derived from the Arabian Sea. Instead, D14C values for Cocos and those for Watamu (Kenya) agree well over most of the study interval, suggesting that the South Equatorial Current carries 14C-elevated water rather than 14C-depleted water westward across …
Different Fouling Modes Of Submerged Hollow-Fiber And Flat-Sheet Membranes Induced By High Strength Wastewater With Concurrent Biofouling, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi
Different Fouling Modes Of Submerged Hollow-Fiber And Flat-Sheet Membranes Induced By High Strength Wastewater With Concurrent Biofouling, Faisal I. Hai, Kazuo Yamamoto, Kensuke Fukushi
Faculty of Science - Papers (Archive)
Exploration of two major commercialized flat-sheet and hollow-fiber membranes in a submerged membrane fungi reactor fed with a synthetic textile wastewater revealed striking differences in the extent and mechanism of fouling between the two types, indicating a case-specific scope of choice between the two for industrial wastewater treatment. The hollow-fiber membrane exhibited fouling with a cake layer composed of fungi and starch, intensity being proportional to the operating flux (0.05–0.3 m/d). Conversely, the flat-sheet membrane suffered from immediate internal pore blocking beyond a critical flux of 0.2 m/d. During the experiment with major constituents of the synthetic wastewater separately, while …
A Study On Solid Waste Management System Of Dhaka City Corporation: Effect Of Composting And Landfill Location, Faisal Ibney Hai, M. Ashraf Ali
A Study On Solid Waste Management System Of Dhaka City Corporation: Effect Of Composting And Landfill Location, Faisal Ibney Hai, M. Ashraf Ali
Faculty of Science - Papers (Archive)
This study has analyzed the generation and characteristics of solid waste in Dhaka city, along with the associated environmental impacts and existing solid waste management practices. Special focus was given on the effect of composting on final disposal of solid waste and effect of landfill site location on transportation cost. An estimate of the future generation rate indicates that the present generation rate of 3500 tons/day may exceed 30 thousand tons/day by the year 2020.The mixed waste dumped at dumping sites is characterized with high organic content and high moisture content (about 80% and 50-70% by weight, respectively). According to …
Structure Of The Early Palaeozoic Cape River Metamorphics, Tasmanides Of North Queensland: Evaluation Of The Roles Of Convergent And Extensional Tectonics, Christopher L. Fergusson, R A Henderson, K. J. Lewthwaite, D. Phillips, I. W. Withnall
Structure Of The Early Palaeozoic Cape River Metamorphics, Tasmanides Of North Queensland: Evaluation Of The Roles Of Convergent And Extensional Tectonics, Christopher L. Fergusson, R A Henderson, K. J. Lewthwaite, D. Phillips, I. W. Withnall
Faculty of Science - Papers (Archive)
The Early Palaeozoic Cape River Metamorphics consist mainly of psammitic gneiss and schist and occur as an extensive linear belt at the western margin of the Charters Towers Province 200 km southwest of Townsville in the northern Tasmanides. A prominent foliation (S2) is the main structure in the belt and is associated with tight to isoclinal folds, subparallel mineral and intersection lineations, and boudinaged pods of vein quartz and pegmatite. In the southwest, the main foliation is a crenulation cleavage (S2) related to D2 deformation. It overprints steeply dipping foliation (S1) formed in …
New Pieces To The Archaean Terrane Jigsaw Puzzle In The Nuuk Region, Southern West Greeland: Steps In Transforming A Simple Insight Into A Complex Regional Tectonothermal Model, Clark R L Friend, Allen Phillip Nutman
New Pieces To The Archaean Terrane Jigsaw Puzzle In The Nuuk Region, Southern West Greeland: Steps In Transforming A Simple Insight Into A Complex Regional Tectonothermal Model, Clark R L Friend, Allen Phillip Nutman
Faculty of Science - Papers (Archive)
In the south of the Nuuk region of West Greenland our 1980s mapping recognized four Archaean gneiss terranes (Færingehavn, Tre Brødre, Tasiusarsuaq and Akia terranes) with different protolith ages and separate early tectonothermal histories. Later in the Archaean these were juxtaposed and then experienced the same 2700-2500 Ma tectonothermal events. Here we abandon extrapolation of only these four terranes across the whole region, and distinguish two new terranes in the NE. The northernmost Isukasia terrane (previously regarded as the northernmost exposure of the Færingehavn terrane) consists of Palaeoarchaean rocks (>3600 Ma) tectonically bounded on its south by the 3075-2960 …
Complex 3670-3500 Ma Orogenic Episodes Superimposed On Juvenile Crust Accreted Between 3850 And 3690 Ma, Itsaq Gneiss Complex, Southern West Greenland, Clark R L Friend, Allen Phillip Nutman
Complex 3670-3500 Ma Orogenic Episodes Superimposed On Juvenile Crust Accreted Between 3850 And 3690 Ma, Itsaq Gneiss Complex, Southern West Greenland, Clark R L Friend, Allen Phillip Nutman
Faculty of Science - Papers (Archive)
The Itsaq Gneiss Complex of the Nuuk region, southern West Greenland, is dominated by 3850-3690 Ma tonalites intruded into and intercalated with lesser amounts of different ≥3850-3700 Ma supracrustal units. Published wholerock Sr and Nd isotopic studies demonstrate that the tonalites are juvenile crustal additions from a depleted mantle source. From our field studies and SHRIMP U/Pb zircon dating, we argue that this juvenile crustal accretion was spread over ca. 170 m.yr. (≥3850-3690 Ma). Following 3850-3690 Ma juvenile crustal accretion events, the evolution of the Itsaq Gneiss Complex continued with numerous crustal-reworking events between 3670 and 3500 Ma. Examples of …
Metasedimentary Complexes Of The Tuva-Mongolian Massif: Age, Provenances And Tectonic Position, I K Kozakov, E B Sal'nikova, Allen Phillip Nutman, V P Kovach, A B Kotov, V N Podkovyrov, Yu V Plotkina
Metasedimentary Complexes Of The Tuva-Mongolian Massif: Age, Provenances And Tectonic Position, I K Kozakov, E B Sal'nikova, Allen Phillip Nutman, V P Kovach, A B Kotov, V N Podkovyrov, Yu V Plotkina
Faculty of Science - Papers (Archive)
A complex problem of dating supracrustal rocks is unavoidable by analysis of tectonic position of polymetamorphic amphibolite and granulite complexes. Geochronological dates are necessary to constrain ages of source rocks and accumulation periods of clastic sediments, while isotopic-geochemical parameters open a possibility to estimate model ages of the crust in provenances. Using the ion microprobe SHRIMPTM (Hiroshima, Japan), clastic zircons from metasediments of the Erzin and Moren complexes of the Tuva-Mongolian massif in accretionary collage of Central Asia are dated and the Nd model age of respective rocks are estimated. The U-Th-Pb isotopic data suggest that clastic zircons from supracrustal …
Macrochannels And Their Significance For Flood-Risk Minimisation, West Dapto, New South Wales, E. L. Roper, Ivars Reinfelds, Gerald C. Nanson
Macrochannels And Their Significance For Flood-Risk Minimisation, West Dapto, New South Wales, E. L. Roper, Ivars Reinfelds, Gerald C. Nanson
Faculty of Science - Papers (Archive)
A prominent characteristic of streams draining catchments in West Dapto, New South Wales, are well developed macrochannels that have formed within alluvial terraces in mid-catchment zones. A detailed hydraulic modelling study using HEC-RAS, HEC-GeoRAS and Arcview GIS indicates that these macrochannels are scaled to accommodate high magnitude floods. They offer a significant degree of natural protection from flood events up to and in excess of 100 years recurrence interval, essentially by operating as 'bankfull' channels during such events. Macrochannel landforms can be clearly distinguished and mapped on fine-scale digital elevation models (DEMs) and other GIS data sources such as rectified …
A Survey Of Martian Dust Devil Activity Using Mars Global Surveyor Mars Orbiter Camera Images, Jenny A. Fisher, Mark I. Richardson, Claire E. Newman, Mark A. Szwast, Chelsea Graf, Shabari Basu, Shawn P. Ewald, Anthony D. Toigo, R. John Wilson
A Survey Of Martian Dust Devil Activity Using Mars Global Surveyor Mars Orbiter Camera Images, Jenny A. Fisher, Mark I. Richardson, Claire E. Newman, Mark A. Szwast, Chelsea Graf, Shabari Basu, Shawn P. Ewald, Anthony D. Toigo, R. John Wilson
Faculty of Science - Papers (Archive)
A survey of dust devils using the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) wide- and narrow-angle (WA and NA) images has been undertaken. The survey comprises two parts: (1) sampling of nine broad regions from September 1997 to July 2001 and (2) a focused seasonal monitoring of variability in the Amazonis region, an active dust devil site, from March 2001 to April 2004. For part 1, dust devils were identified in NA and WA images, and dust devil tracks were identified in NA images. Great spatial variability in dust devil occurrence is highlighted, with Amazonis Planitia being the …
High Spectral Resolution Solar Absorption Measurements Of Ethylene (C2h4) In A Forest Fire Smoke Plume Using Hitran Parameters: Troposheric Vertical Profile Retrieval, Curtis P. Rinsland, Clare Paton-Walsh, Nicholas B. Jones, David W. T Griffith, Aaron Goldman, Stephen W. Wood, Linda Chiou, Arndt Meier
High Spectral Resolution Solar Absorption Measurements Of Ethylene (C2h4) In A Forest Fire Smoke Plume Using Hitran Parameters: Troposheric Vertical Profile Retrieval, Curtis P. Rinsland, Clare Paton-Walsh, Nicholas B. Jones, David W. T Griffith, Aaron Goldman, Stephen W. Wood, Linda Chiou, Arndt Meier
Faculty of Science - Papers (Archive)
The tropospheric mixing ratio profile of ethylene (C2H4)(C2H4) has been retrieved from a high spectral resolution ground-based infrared solar absorption spectrum. The spectrum was recorded during intense fires in New South Wales, Australia on January 1, 2002, and was analyzed with the C2H4C2H4 spectral parameters added to the 2000 HITRAN compilation. Absorption by C2H4C2H4 in the smoke-affected spectrum extends over a broad spectral range in a region with observable rotational fine structure. The fine structure occurs in addition to the View the MathML source949.5cm-1ν7ν7 band Q branch that is traditionally used to quantify C2H4C2H4 amounts from infrared atmospheric measurements assuming …
Comparisons Between Sciamachy And Ground-Based Ftir Data For Total Columns Of Co, Ch4, Co2 And N2o, B Dils, M De Maziere, T Blumenstock, M Buchwitz, R De Beek, Nicholas B. Jones, David W. Griffith, P Demoulin, A G Frankenberg, H Duchatelet, Hans Fast
Comparisons Between Sciamachy And Ground-Based Ftir Data For Total Columns Of Co, Ch4, Co2 And N2o, B Dils, M De Maziere, T Blumenstock, M Buchwitz, R De Beek, Nicholas B. Jones, David W. Griffith, P Demoulin, A G Frankenberg, H Duchatelet, Hans Fast
Faculty of Science - Papers (Archive)
Total column amounts of CO, CH4, CO2 and N2O retrieved from SCIAMACHY nadir observations in its near-infrared channels have been compared to data from a ground-based quasi-global network of Fourier-transform infrared (FTIR) spectrometers. The SCIAMACHY data considered 5 here have been produced by three different retrieval algorithms, WFM-DOAS (version 0.4, 0.41 for CH4), IMAP-DOAS (version 0.9) and IMLM (version 5.5) and cover the January to December 2003 time period. Comparisons have been made for individual data, as well as for monthly averages. To maximize the number of reliable coincidences that satisfy the temporal and spatial collocation criteria, the 10 SCIAMACHY …
Channel Pattern And Deltaic-Estuarine Process In The Indo-Pacific Region, Colin D. Woodroffe
Channel Pattern And Deltaic-Estuarine Process In The Indo-Pacific Region, Colin D. Woodroffe
Faculty of Science - Papers (Archive)
This paper explores the concept that deltaic-estuarine geomorphology is a function of the dominant processes. It has been traditional to recognize river, wave and tidal processes as the principal controls on the gross morphology of deltas. To a lesser extent, these processes are also recognized as significant controls on the shape of estuaries. The complex deltas of the Southeast Asian region contain active deltaic plains and often extensive abandoned deltaic plains which preserve an imprint of the processes which have shaped them. In northern Australia, where estuaries are more extensive than deltas, similar geomorphological features can be recognized and the …
Seasonal Variations Of Co And Hcn In The Troposphere Measured By Solar Absorption Spectroscopy Over Poker Flat, Alaska, Y Kasai, A. Kagawa, Nicholas B. Jones, A. Fujiwara, K. Seki, Y. Murayama, F Murcray
Seasonal Variations Of Co And Hcn In The Troposphere Measured By Solar Absorption Spectroscopy Over Poker Flat, Alaska, Y Kasai, A. Kagawa, Nicholas B. Jones, A. Fujiwara, K. Seki, Y. Murayama, F Murcray
Faculty of Science - Papers (Archive)
Tropospheric partial column abundances of CO and HCN have been retrieved from infrared solar spectra observed with a ground-based spectrometer at Poker Flat Alaska (65°N, 147°W) over the time period from 2000 to 2004. From these data we report the transpacific transport induced inter-annual variability of tropospheric CO over Poker Flat. This is the first report of solar infrared data from the Poker Flat station, where the geographical location of the site means that remote sensing measurements are sampling the transport of transpacific air parcels going to Northern America from Eastern Siberia and Asia. The five year time-span of the …
Structure, Detrital Zircon U-Pb Ages And 40ar/39ar Geochronology Of The Early Palaeozoic Girilambone Group, Central New South Wales: Subduction, Contraction And Extension Associated With The Benambran Orogeny, Christopher L. Fergusson, C M Fanning, D. Phillips, Benjamin Ackerman
Structure, Detrital Zircon U-Pb Ages And 40ar/39ar Geochronology Of The Early Palaeozoic Girilambone Group, Central New South Wales: Subduction, Contraction And Extension Associated With The Benambran Orogeny, Christopher L. Fergusson, C M Fanning, D. Phillips, Benjamin Ackerman
Faculty of Science - Papers (Archive)
The Early Palaeozoic Cape River Metamorphics consist mainly of psammitic gneiss and schist and occur as an extensive linear belt at the western margin of the Charters Towers Province 200 km southwest of Townsville in the northern Tasmanides. A prominent foliation (S2) is the main structure in the belt and is associated with tight to isoclinal folds, subparallel mineral and intersection lineations, and boudinaged pods of vein quartz and pegmatite. In the southwest, the main foliation is a crenulation cleavage (S2) related to D2 deformation. It overprints steeply dipping foliation (S1) formed in …
Evidence For Altitude-Dependent Photolysis-Induced 18o Isotopic Fractionation In Stratospheric Ozone, Vanessa E. Haverd, Geoffrey C. Toon, David W. Griffith
Evidence For Altitude-Dependent Photolysis-Induced 18o Isotopic Fractionation In Stratospheric Ozone, Vanessa E. Haverd, Geoffrey C. Toon, David W. Griffith
Faculty of Science - Papers (Archive)
We present vertical profiles of 18O fractionations in ozone, measured by balloon-borne infrared remote sensing between 15 and 40 km. The magnitudes of the 16O16O18O (668O3) and 16O18O16O (686O3) fractionations are 13.5 +/- 2.7% and 7.7 +/- 2.2%, averaged over the 20-35 km altitude range, in good agreement with previous atmospheric measurements by mass spectrometry and both infrared and far infrared remote sensing spectroscopy. We use our fractionation profiles, together with known fractionation effects of the ozone formation reaction, to deduce …
Trace Gas Emissions From Biomass Burning Inferred From Aerosol Optical Depth, Clare Paton-Walsh, N. B. Jones, Stephen R. Wilson, A. Meier, N. Deutscher, D. W. Griffith, R. Mitchell, S. Campbell
Trace Gas Emissions From Biomass Burning Inferred From Aerosol Optical Depth, Clare Paton-Walsh, N. B. Jones, Stephen R. Wilson, A. Meier, N. Deutscher, D. W. Griffith, R. Mitchell, S. Campbell
Faculty of Science - Papers (Archive)
We have observed strong correlations between simultaneous and co-located measurements of aerosol optical depth and column amounts of carbon monoxide, hydrogen cyanide, formaldehyde and ammonia in bushfire smoke plumes over SE Australia during the Austral summers of 2001/2002 and 2002/2003. We show how satellite-derived aerosol optical depth maps may be used in conjunction with these correlations to determine the total amounts of these gases present in a fire-affected region. This provides the basis of a method for estimating total emissions of trace gases from biomass burning episodes using visible radiances measured by satellite.
Western Pacific Coral Delta18o Records Of Anomalous Holocene Variability In El Nino-Southern Oscillation, Helen V. Mcgregor, M Gagan
Western Pacific Coral Delta18o Records Of Anomalous Holocene Variability In El Nino-Southern Oscillation, Helen V. Mcgregor, M Gagan
Faculty of Science - Papers (Archive)
No abstract provided.