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A quantitative survey of riparian forest structure along the Quebrada Grande in La Cangreja National Park, Costa Rica /Costanzo, Angela J. January 2006 (has links) (PDF)
Thesis (M.S.)--University of Washington, 2006. / Includes bibliographical references (leaves 52-57). Issued also electronically via World Wide Web in PDF format.
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Satellite images as primers to target priority areas for field surveys of indicators of ecological sustainability in tropical forestsAguilar-Amuchastegui, Naikoa. January 1900 (has links)
Thesis (Ph.D.)--University of Nebraska-Lincoln, 2006. / Title from title screen (site viewed on Feb. 6, 2007). PDF text: 163 p. : ill. (some col.). UMI publication number: AAT 3221295. Includes bibliographical references. Also available in microfilm and microfiche format.
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GPU-Accelerated Real-Time Surveillance De-WeatheringPettersson, Niklas January 2013 (has links)
A fully automatic de-weathering system to increase the visibility/stability in surveillance applications during bad weather has been developed. Rain, snow and haze during daylight are handled in real-time performance with acceleration from CUDA implemented algorithms. Video from fixed cameras is processed on a PC with no need of special hardware except an NVidia GPU. The system does not use any background model and does not require any precalibration. Increase in contrast is obtained in all haze/rain/snow-cases while the system lags the maximum of one frame during rain or snow removal. De-hazing can be obtained for any distance to simplify tracking or other operating algorithms on a surveillance system.
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Intensivt regn i Sverige 2009-2011 : En kartläggning över händelser av intensivt regn och dess konsekvenserNilsson, Peter January 2012 (has links)
Sammanfattning Klimat- och sårbarhetsutredningen (SOU 2007:60) spår en framtid då Sveriges klimat till större del präglas av intensivt regn, och diskuterar konsekvenserna detta kommer innebära. Så väntas framtiden bli, men hur ser det ut idag? Syftet med uppsatsen är att kartlägga den samtida förekomsten av intensivt regn i Sverige och dess konsekvenser, i syfte att skapa en referenspunkt till diskussionerna om framtidens regnintensiva klimat och hur det kommer påverka samhället. Materialet studien bygger på har inhämtats från flera håll, men främst kommer det från SMHI, tidningsartiklar, räddningstjänster och kommuner. Sedan har en sammanställning gjorts där de identifierade händelserna analyserats kvantitativt och rumsligt. Studien är avgränsad till att endast inkludera händelser under sommarmånaderna juni, juli och augusti eftersom flest händelser av intensivt regn bedöms inträffa då. Resultatet visar stor geografisk spridning av inträffade regn, och liten kronologisk spridning. Alla landets län har drabbats men i norra och södra Norrland är förekomsten gles eller obefintlig, medan delar av mellersta Norrland, Svealand och Götaland påvisar flera koncentrerade områden. Kronologiskt sett inträffade den största delen av regnen i slutet av juli – minst antal drabbade juni. Konsekvenserna som rapporterats har till största del handlat om översvämmade bostäder och andra byggnader, samt erosionsskadade vägar och järnvägar. En konsekvensgruppering gjordes med fem konsekvensgrupper (KG) mellan 1 och 5, där KG 1 innehåller regn som inte fört med sig konsekvenser för människan och KG 5 väldigt omfattande och allvarliga konsekvenser för människan. 118 händelser hamnade i KG 1 och 21 i KG 4 – ingen uppnådde KG 5:s kriterier. En tendens visar att ju mer nederbörd som faller inom ett tätbebyggt område, i desto högre KG hamnar händelsen, även om det är svårt att säkert fastslå ett sådant orsakssamband utifrån det något ringa materialet. / Abstract The Swedish investigation of climate and vulnerability (SOU 2007:60) predicts a future where the Swedish climate to a greater extent is characterized by heavy rain, and discusses the consequences this will cause. This is the future we believed to be expected, but how about today? The purpose with this paper is to map the present occurrence of heavy rain in Sweden and its consequences, to create a reference to include the discussions about climate change. The data the paper is based on were collected from several sources, but most parts come from The Swedish Meteorological and Hydrological Institute (SMHI), newspapers and Swedish rescue departments and municipalities. After data were compiled the identified episodes were analyzed both quantitatively and spatially. The study only includes episodes that occurred in June, July and August, since most of the heavy rains expected to occur during this period. The result shows a great spatial spreading of occurred episodes, and a minor chronological spreading. Every county in Sweden has been affected, but in the south and north of Northern and Central Sweden however the occurrences of heavy rain are sparse and sometimes absent. The regions with high concentration of episodes are in the middle of Northern and Central Sweden, South Central Sweden and Southern Sweden. From a chronological view the major part of the identified episodes occurred in late July – June was the month with the fewest number of heavy rains. The consequences that have been found were divided into two categories; flood and erosion damages – the former mostly affected buildings, and the latter roads and railways. A categorization was done to subdivide the episodes grades of consequences into groups of different magnitudes. The levels were graded from 1-5, where 1 is the lowest grade. 118 episodes were placed in level 1 and only 21 in level 4 – zero episodes managed to fulfill the criteria of level 5. A tendency seen is that the more rain that falls within a densely area, the more consequences will occur, although it’s not possible to draw a safe conclusion based on the relatively sparse extent of data.
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Monitoring, analyzing and modeling hydrological processes over a headwater catchment in Hong Kong /Li, Yanqiu, January 2009 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2010. / Includes bibliographical references (p. 101-118). Also available online.
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Interannual and interdecadal rainfall variations in the Hawaiian Islands /Chen, Huaiqun. January 2003 (has links)
Thesis (M.S.)--University of Hawaii at Manoa, 2003. / Includes bibliographical references (leaves 36-38).
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Wind scatterometry with improved ambiguity selection and rain modeling /Draper, David, January 2003 (has links) (PDF)
Thesis (Ph. D.)--Brigham Young University. Dept. of Electrical and Computer Engineering, 2003. / Includes bibliographical references (p. 231-237).
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Monitoring, analyzing and modeling hydrological processes over a headwater catchment in Hong KongLi, Yanqiu, January 2009 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2010. / Includes bibliographical references (p. 101-118). Also available in print.
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Rainfall distribution in the City of St. John's : temporal distribution, spatial variation, frequency analysis, and Tropical Storm Gabrielle /Wadden, David, January 2002 (has links)
Thesis (M.Eng.)--Memorial University of Newfoundland, 2002. / Bibliography: leaves 78-80. Also available online.
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Experimental and numerical studies of rain infiltration and moisture redistribution /Kaluarachchi, Jagath Janapriya. January 1984 (has links)
Thesis (M. Phil.)--University of Hong Kong, 1984.
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