Enter records

ID: 59985
Title: Selecting landscape metrics as indicators of spatial heterogeneity-A comparison among Greek landscapes.
Author: Sofia G. Plexida, Athanassions I. Sfougaris, Ioannis P. Ispikoudis, Vasilios P. Papanastasis.
Editor: F.D.van der Meer
Year: 2014
Publisher: Elsevier B.V.
Source: Centre for Ecological Sciences
Reference: APPLIED EARTH OBSERVATION AND GEOINFORMATION. Vol. 26 26-35 (2014).
Subject: APPLIED EARTH OBSERVATION AND GEOINFORMATION
Keywords: Landscape pattern analysis, Landscape indicators, Altitude, Human land use.
Abstract: This paper investigates the spatial heterogeneity of three landscapes along an altitudinal gradient and different human land use. The main aim was the identification of appropriate landscape indicators using different extents. ASTER image was used to create a land cover map consisting of three landscapes which differed in altitude and land use. A number of landscape metrics quantifying patch complexity, configuration, diversity and connectivity were derived from the thematic map at the landscape level. There were significant differences among the three landscapes regarding these four aspects of landscape heterogeneity. The analysis revealed a specific pattern of land use where lowlands are being increasingly utilized by humans (percentage of agricultural land=65.84%) characterized by physical connectedness (high values of Patch Cohesion Index) and relatively simple geometrics (low values of fractal dimension index). The landscape pattern of uplands was found to be highly diverse based upon the Shannon Diversity index. After selecting the scale (600 ha) where metrics values stabilized, it was shown that metrics were more correlated at the small scale of 60 ha. From the original 24 metrics, 14 individual metrics with high spearman correlation coefficient and variance inflation Factor criterion were eliminated, leaving 10 representative metrics for subsequent analysis. Data reduction analysis showed that Patch Density, Area-Weighted Mean Fractal Dimension Index and Patch Cohesion Index are suitable to describe landscape patterns irrespective of the scale. A systematic screening of these metrics could enhance a deeper understanding of the results obtained by them and contribute to a sustainable landscape management of Mediterranean landscapes.
Location: TE 15 New Biology Building
Literature cited 1: Allhamad, M.N. Alrababah, M.A., Feagin, R.A., Gharaibeh, A., 2011. Mediterranean drylands: the effect of grain size and domain of scale on landscape metrics. Ecological Indicators 11, 611-621. Allen, H.D., 2001. Mediterranean ecogeography 2003. Response of past and present Mediterranean Ecosystems to environmental change. Progress in Physical Geography 27, 359-377.
Literature cited 2: Archibold, O.W., 1995. Ecology of World Vegetation. Chapman and Hall. Blondel, J., 2006. The ' design ' of Mediterranean landscapes: a millennial story of humans and ecological systems during the historic period. Human Ecology 34, 713-729.

ID: 59984
Title: Identifying curvature of overpass mountain roads in Iran from high spatial resolution remote sensing data.
Author: Sahar Alian, Valentyn A. Tolpekin, Weitske Bijker, Lalit Kumar.
Editor: F.D.van der Meer
Year: 2014
Publisher: Elsevier B.V.
Source: Centre for Ecological Sciences
Reference: APPLIED EARTH OBSERVATION AND GEOINFORMATION. Vol. 26 21-25 (2014).
Subject: APPLIED EARTH OBSERVATION AND GEOINFORMATION
Keywords: Road detection, Alpha shapes, Curvature, Moving window.
Abstract: Digital curve identification from remote sensing data is difficult in continuous objects such as roads. Use of high spatial resolution images can increase geometrical details and accuracy of estimation and detect curvy segments from the road boundary. We detect a road as a curve in 2D raster grid and analyze its shape using fuzzy c-means and alpha shapes. Two approaches identify curvature from the polylines on two sides of the road. Image resolution, radius of alpha circles and size moving window are the three main parameters for detection of curvy segments. Lower resolution, larger alpha circles and larger moving windows decrease the chance of detecting sharp and narrow curve segments.
Location: TE 15 New Biology Building
Literature cited 1: Bezdek, J.C., Ehrlich, R., Full, W., 1984. FCM: the fuzzy c-means clustering algorithm. Computer and Geosciences 10, 191-203. Da Fontoura Costa, L., Cesar Jr., R.M. 2010.Shape Analysis and Classification: Theory and Practice.CRC Press, LLC, Florida.
Literature cited 2: Edelsbrunner, H., 1992. Weighted Alpha Shapes. University of Illinois at Urbana-Champaign, Department of Computer Science, Urbana, IL, Technical Report UIUCDSC-R-92-1760. Edelsbrunner, H., Kirkpatrick, D., Seidel, R., 1983.On the shape of a set of points in the plane. IEEE Transactions on Information Theory 29, 551-559.

ID: 59983
Title: Inversion of the PROSAIL model to estimate leaf area index of maize, potato, and sunflower fields from unmanned aerial vehicle.
Author: Si-Bo Duan, Zhao-Liang Li, Hua Wu, Bo-Hui Tang, Lingling Ma.
Editor: F.D.van der Meer
Year: 2014
Publisher: Elsevier B.V.
Source: Centre for Ecological Sciences
Reference: APPLIED EARTH OBSERVATION AND GEOINFORMATION. Vol. 26 12-20 (2014).
Subject: APPLIED EARTH OBSERVATION AND GEOINFORMATION
Keywords: Leaf area index, PROSAIL, Hyperspectral, Look-up table, Dual-angle observations.
Abstract: Leaf area index (LAI) is a key variable for modeling energy and mass exchange between the land surface and the atmosphere. Inversion of physically based radiative transfer models is the most established technique for estimating LAI from remotely sensed data. This study aims to evaluate the suitability of the PROSAIL model for Lai estimation of three typical row crops (maize, potato, and sunflower) from unmanned aerial vehicle (UAV) hyperspectral data. LAI was estimated using a look-up table (LUT) based on the inversion of the PROSAIL model. The estimated LAI was evaluated against in situ LAI measurements. The results indicated that the LUT-based inversion of the PROSAIL model was suitable for LAI estimation of these three crops, with a root mean square error (RMSE) of approximately 0.62 m2 m-2, and a relative RMSE (RRMSE) of approximately 15.5%. Dual-angle observations were also used to estimate LAI and proved to be more accurate than single -angle observations, with an RMSE of approximately 0.55 m2 m-2 and an RRMSE of approximately 13.6%. The results demonstrate that additional directional information improves the performance of LAI estimation.
Location: TE 15 New Biology Building
Literature cited 1: Asner, G.P., Surlock, J.M.O., Hicke, J.A., 2003. Global synthesis of leaf area index observations: implications for ecological and remote sensing studies. Global Ecology and Biogeography 12, 191-205. Atzberger, C., 2004. Object-based retrieval of biophysical canopy variables using artificial neural nets and radiative transfer models. Remote sensing of Environment 93, 53-67.
Literature cited 2: Atzberger, C., Richter, K., 2012. Spatially constrained inversion of radiative transfer models for improved LAI mapping from future Sentinel-2 imagery. Remote Sensing of Environment 120, 208-218. Bacour, C., Baret, F., Beal, D., Weiss, M., Pavageau, K., 2006. Neural network estimation of LAI, Fapar, fCover and LAI x Cab, from top of canoy MERIS reflectance data: principles and validation. Remote Sensing of Environment 105, 313-3125.

ID: 59982
Title: Comparative analysis of different uni-and multi-variate methods for estimation of vegetation water content using hyper-spectral measurements.
Author: M.Mirzaie, R. Darvishzadeh, A. Shakiba, A.A. Matkan, C. Atzberger, A.Skidmore.
Editor: F.D.van der Meer
Year: 2014
Publisher: Elsevier B.V.
Source: Centre for Ecological Sciences
Reference: APPLIED EARTH OBSERVATION AND GEOINFORMATION. Vol. 26 1-11 (2014).
Subject: APPLIED EARTH OBSERVATION AND GEOINFORMATION
Keywords: Hyper-spectral data, Vegetation water content (VGC), PLSR, PCR, ANN, Narrow band indices.
Abstract: Assessment of vegetation water content is critical for monitoring vegetation condition, detecting plant water stress, assessing the risk of forest fires and evaluating water status for irrigation. The main objective of this study was to investigate the performance of various mono-and -multi-variate statistical for estimating vegetation water content (VWC) from hyper-spectral data. Hyper-spectral data is influenced by multi-collinearity because of large number of (independent) spectral bands being modeled by a small number of (dependent) biophysical variables. Therefore, some full spectrum methods that are known to be suitable for analyzing multi-collinear data set were chosen. Canopy spectral reflectance was obtained with a GER 3700spectro-radiometer (400-2400 nm) in a laboratory setting and VWC was measured by calculating wet/dry weight difference per unit of ground area (g/m2) of each plant canopy (n=95). Three multivariate statistical methods were applied to estimate VWC: (1) partial least square regression, (2) artificial neural network and (3) principal component regression. They were selected to minimize the problem related to multi-collinearity. For comparison, uni-variate techniques including narrow band ratio water index (RWI), normalized difference water index (NDWI), second soil adjusted vegetation index (SAV12) and transferred soil adjusted vegetation index (TSAVI) were applied. For each type of vegetation index, all two-band combinations were evaluated to determine the best band combination. Validation of the methods was based on the cross validation procedure and using three statistical indictors: R2, RMSE and relative RMSE. The cross-validated results identified PLSR as the regression model providing the most accurate estimates of VWC among the various methods. The result revealed that this model is highly recommended for use with multi-collinear datasets (R2cv = 0.94, RMSE cv = 0.23). Principal component regression exhibited the lowest accuracy among the multivariate models R2cv = 0.78, RMSEcv =0.41).
Location: TE 15 New Biology Building
Literature cited 1: Ahmad, S., Kalra, A., Stephen, H., 2010. Estimating soil moisture using remote sensing data: A machine learning approach. Advances in Water Resources 33, 69-80. Atkinson, P.M. Tatnall, A.R.L., 1997. Introduction Neutral networks in remote sensing. International Journal of Remote Sensing. 18 (4), 699-709.
Literature cited 2: Atzberger, C., Guerif, M., Baret, F., Werner, W., 2010. Comparative analysis of three chemometric techniques for the spectroradiometric assessment of canopy cholorophyll content in winter wheat.Computers and Electronics in Agriculture 73, 165-173. Atzberger, C., Jarmer, T., Schlerf, M., Kotz, B., Werner, W., 2004. Spectroradiometetric determination of wheat bio-physical variables. Comparison of different empirical-statistical approaches. In: Remote Sensing in Transition Proc. 23th EarSeL Symp., Gent, pp. 463-470.

ID: 59981
Title: Characterisation of flows in the Beda Basalt using infrared hyperspectral data.
Author: Georgina A Gordon, Stacey O McAvaney, Claire E Wade and John L Keeling.
Editor: Dr. Paul Heithersay
Year: 2014
Publisher: Government of South Australia
Source: Centre for Ecological Sciences
Reference: Mesa Journal (South Australia), Issue (2) 42-47( 2014)
Subject: New geology
Keywords: Characterisation, Beda, Basalt, infrared, hyperspectral data.
Abstract: Rapid mineralogical characterization of drillcore by reflectance spectroscopy is a routine service provided at the Department of State Development Glenside Drill Core Library using an AuS cope provided and CSIRO-developed HyLogging instrument and software system. Visible, near and shortwave system. Visible, near and shortwave infrared specrtra (VNIR/SWIR, 380-2500 nm) are used, for example, to identify white micas, chlorite, carbonate, iron oxide and kaolin group minerals, while non-hydrous silicates, such as quartz, feldspar, garnet, amphibole and pyroxene are determined from thermal infrared spectra (TIR, 6000-14 500 nm), obtained with a separate, co-registered spectrometer: a recent addition to the HyLogger hardware.
Location: TE 15 New Biology Building
Literature cited 1: Chang Z, Hedenquist JW, White NC, Cooke DR, Roach M, Deyell CL, Garcia J, Gemmell JB, McKnight S and Cuison AL 2011. Exploration tools for linked porphyry and ephemeral deposits: example from the Mankayan intrusion-centered Cu-Au district, Luzon, Philippines. Economic Geology 106: 1365-1398. Cloutis EA 2002. Pyroxene reflectance spectra: minor absorption bands and effects of elemental substitutions. Journal of Geophysical Research 107 (E6): 6-1-6-12.
Literature cited 2: Cloutis E A, Klima RL, Kaletzke L, Coradini A, Golubeva LF, McFadden LA, Shestopalov DI and Vilas F 2010. The 506 nm absorption feature in pyroxene spectra: nature and implications for spectroscopy-based studies of pyroxene-bearing targets. Icarus 207: 295-313. Cowley WM 1991. Beda Volcanics and Backy Point Formation of the eastern Gawler Craton, Report Book 90/00016. Department of Mines and Energy South Australia, Adelaide.

ID: 59980
Title: The Beda Basalt: new geochemistry, isotopic data and its definition.
Author: Claire E Wade, Stacey O McAvaney and Georgina A Gordon.
Editor: Dr. Paul Heithersay
Year: 2014
Publisher: Government of South Australia
Source: Centre for Ecological Sciences
Reference: Mesa Journal (South Australia), Issue (2) 24-41( 2014)
Subject: New geology
Keywords: Beda Basalt, geochemistry, isotopic data, definition.
Abstract: The Neoproterozoic Adelaide Geosyncline and Stuart Shelf preserve deposits formed in a major rift basin and shelf which now separate the Gawler and Curnamona provinces which developed during the break-up of the supercontinent Rodinia (Preiss 2000). The early stages of rifting and sedimentation were accompanied by localized basaltic and minor felsic magmatism within the basal Callanna Group, comprising the Wilangee Basalt near Broken Hill (NSW), the Cadlareena Volcanics in the Willouran Ranges, the Wooltana Volcanics in the Willouran Ranges, the Wooltana Volcanics bordering the Mount Painter Inlier, volcanic at Depat Creek in the southwest Flinders Ranges, the Boucaut Volcanics south of Olary, the Beda Basalt on the Stuart Shelf and the Gairdner Dolerite which intrudes the central Gawler Craton to the west; together these units have been referred to as the Willouran Basic Province.
Location: TE 15 New Biology Building
Literature cited 1: Abdel-Rahman A-FM 2002. Mesozoic volcanism in the Middle East: geochemical, isotopic and petrogenetic evolution of extension-related alkali basalts from central Lebanon. Geological Magazine 139 (6): 621-640. Australian Selection Pty Ltd 1977. Uro Bluff, progress reports for the period 16/4/75 to 15/3/77, open File Envelope 02585. Department for Manufacturing, Innovation, Trade, Resources and Energy, South Australia, Adelaide.
Literature cited 2: Cabanis B and Lecolle M 1989. La diagrame La/10, Y/15, Nb/8: un outil pour la discrimination des series volcaniques et la mise en evidence des processus de m?langes et/ou de contamination crustale. Comptes Rendus de l ' Academie des Sciences-Series II 309: 2023-2029. Compston W, Crawford AR and Bofinger VM 1966. A radiometric estimate of the duration of sedimentation in the Adelaide Geosyncline, South Australia. Journal of the Geological Society of Australia 13: 229-276.

ID: 59979
Title: Markets for Environmental Products and Services: A review of Asia Pacific Countries.
Author: Ramakrishna Nallathiga
Editor: P K Bhattacharya
Year: 2014
Publisher: Dr. R k Pachauri.
Source: Centre for Ecological Sciences
Reference: TIDEE Vol.13 (2) 163-176 (2013)
Subject: TERI information Digest on Energy and Environment.
Keywords: Environmental services, Market analysis, Asia-Pacific countries.
Abstract: Environmental services are increasingly becoming important after the acceptance of sustainable development as the development goal by several nations. Environmental services are somewhat diverse in their nature and are still emerging with the development of the sector. This paper presents a review of the markets for environmental services in the Asia-Pacific countries, namely, Australia, New Zealand, China, Hong Kong, Indonesia, Japan, Malaysia, Philippines, Singapore, South Korea, Taiwan, and Thailand. It presents the diversity of the nature of markets for environmental services in terms of size, features, driving forces, buyers, sellers, and limiting factors, which present the concentration and strength of the market for these services in the above nations. This reflects the investment potential and opportunities for the emerging players in the field. At the same time, they also reflect some underlying characteristics of the specific markets, which can be used in strategizing the business by the service providing businesses, such as consulting and equipment manufacturing houses.
Location: TE 15 New Biology Building
Literature cited 1: Lozada HR and Minttu-Wimsatt AT. (2014). Green based innovation: Sustainable development in product management, M J Polonsky and AT Mintu-Wimsatt (eds) Environmental Marketing: Strategies, Practice, Theory and Research, Jaico Publishing House, Mumbai, pp 179-196. Miles M and Munilla LS. 2004. The eco-marketing orientation: An emerging business opportunity, M J Polonsky and A T Mintu-Wimsatt (eds) Environmental Marketing: Strategies, Practice, Theory and Research, Jaico Publishing House, Mumbai, pp 23-36.
Literature cited 2: Mintu-Wimsatt A T and Bradford D m. 2004. In search of market segments for green products, M J Polonsky and A T Mintu-Wimsatt (eds) Environmental Marketing: Strategies, Practice, Theory and Research, Jaico Publishing House, Mumbai, pp 293-304. Sheth J N and Parvatiyar A. 2004. Ecological imperatives and the role of marketing, M J Polonsky and A T Mintu-Wimsatt (eds) Environmental Marketing: Strategies, Practice, Theory and Research, Jaico Publishing House, Mumbai, pp 1-20.

ID: 59978
Title: Tough times.
Author: Sascha Rentzing.
Editor: Jorg -Rainer Zimmermann (jz)
Year: 2014
Publisher: German Wind Energy Association.
Source: Centre for Ecological Sciences
Reference: New Energy, issue (6) 40-43 (2014)
Subject: New Energy
Keywords: Larger, higher, quieter.
Abstract: The slowdown in the European solar market is weighing heavily on the price of inverters. If manufacturers do n ' t soon find a way to sell more cheaply and expand in to new markets, Asia will gain the upper hand.
Location: TE 15 New Biology Building
Literature cited 1: None
Literature cited 2: None

ID: 59977
Title: Radar on, lights off.
Author: Bernd Muller
Editor: Jorg -Rainer Zimmermann (jz)
Year: 2014
Publisher: German Wind Energy Association.
Source: Centre for Ecological Sciences
Reference: New Energy, issue (6) 36-39 (2014)
Subject: New Energy
Keywords: Radar, on, lights, off
Abstract: The flashing lights on wind turbines are an annoyance for people living nearby. Some German companies are now marketing radar technology that can detect air craft and turn the lights on only when they are needed. Who will win the race?
Location: TE 15 New Biology Building
Literature cited 1: None
Literature cited 2: None

ID: 59976
Title: Larger, higher, quieter.
Author: Bernd Muller
Editor: Jorg -Rainer Zimmermann (jz)
Year: 2014
Publisher: German Wind Energy Association.
Source: Centre for Ecological Sciences
Reference: New Energy, issue (5) 38-40 (2014)
Subject: New Energy
Keywords: Larger, higher, quieter.
Abstract: Wind energy 2014 sent out a clear message: evolution, not revolution, is the order of the day. The trend is moving towards larger, customized turbines, but not necessarily higher capacities.
Location: TE 15 New Biology Building
Literature cited 1: None
Literature cited 2: None

ID: 59975
Title: The slow death of the fast breeder.
Author: Jurgen Doschner
Editor: Jorg -Rainer Zimmermann (jz)
Year: 2014
Publisher: German Wind Energy Association.
Source: Centre for Ecological Sciences
Reference: New Energy, issue (5) 14-17 (2014)
Subject: New Energy
Keywords: Slow, death, fast breeder.
Abstract: In economic terms, the ?peaceful use of nuclear energy? is a gigantic disaster. The economic damage caused by accidents, bad investment and unproductive plants exceeds the unimaginable sum of a trillion US dollars. A major part is played by ?breeder ?technology.
Location: TE 15 New Biology Building
Literature cited 1: None
Literature cited 2: None

ID: 59974
Title: Who do you call in an emergency?
Author: Anne-Katrin Wehrmann
Editor: Jorg -Rainer Zimmermann (jz)
Year: 2014
Publisher: German Wind Energy Association.
Source: Centre for Ecological Sciences
Reference: New Energy, issue (3) 38-41 (2014)
Subject: New Energy
Keywords: Call, emergency.
Abstract: Long distances from land and difficult weather conditions make rescue missions to offshore wind farms a real challenge.
Location: TE 15 New Biology Building
Literature cited 1: None
Literature cited 2: None

ID: 59973
Title: A tough gap to close.
Author: Sascha Rentzing.
Editor: Jorg -Rainer Zimmermann (jz)
Year: 2014
Publisher: German Wind Energy Association.
Source: Centre for Ecological Sciences
Reference: New Energy, issue (3) 32-32 (2014)
Subject: New Energy
Keywords: Tough, Gap, close
Abstract: Thin-film manufacturers are still convinced thay can compete with the dominant silicon technology for market share. However, the efficiency and cost benefits of crystalline photovolataics may turn out to have an insurmountable lead.
Location: TE 15 New Biology Building
Literature cited 1: None
Literature cited 2: None

ID: 59972
Title: Smog fuels storms.
Author: - (News).
Editor: Jorg -Rainer Zimmermann (jz)
Year: 2014
Publisher: German Wind Energy Association.
Source: Centre for Ecological Sciences
Reference: New Energy, issue (3) 31-31 (2014)
Subject: New Energy
Keywords: Smog, fuels, storms.
Abstract: College Station, Texas (Sr) Heavy air pollution in large Asian cities will do long term damage to the climate. A more immediate problem, however, is that the dirt seems to be exacerbating storms over the Pacific Ocean. This is according to a report that scientist at Texas A & M University published in the US journal, ?Proceedings of the National Academy of Sciences?. They say that their climate models showed clear differences between the weather now and in pre-industrial times. Fine particles of dirt are traveling from large Asian cities towards the North Pacific, where they combine with water in the air and cause thicker clouds and heavier storms.
Location: TE 15 New Biology Building
Literature cited 1: None
Literature cited 2: None

ID: 59971
Title: Streamlining proves tricky
Author: Sascha Rentzing
Editor: Jorg -Rainer Zimmermann (jz)
Year: 2014
Publisher: German Wind Energy Association.
Source: Centre for Ecological Sciences
Reference: New Energy, issue (3) 8-16 (2014)
Subject: New Energy
Keywords: Streamlining, tricky.
Abstract: If the wind sector wants to produce more electricity, it will have to use turbines with longer rotor blades. However, this will only pay off if blades become lighter and more flexible. Developers are faced with complex tasks.
Location: TE 15 New Biology Building
Literature cited 1: None
Literature cited 2: None