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Dissertations / Theses on the topic 'Vegetation series'

Author: Grafiati

Published: 6 July 2024

Last updated: 31 July 2025

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1

Wahrman, Spencer A. "Time Series Analysis of Vegetation Change using Hyperspectral and Multispectral Data." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/17473.

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Approved for public release; distribution is unlimited<br>Grand Lake, Colorado has experienced a severe mountain pine beetle outbreak over the past twenty years. The aim of this study was to map lodgepole pine mortality and health decline due to mountain pine beetle. Multispectral data spanning a five-year period from 2006 to 2011 were used to assess the progression from live, green trees to dead, gray-brown trees. IKONOS data from 2011 were corrected to reflectance and validated against an Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) hyperspectral dataset, also collected during 201

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2

Julien, Yves. "Vegetation monitoring through retrieval of NDVI and LST time series from historical databases." Doctoral thesis, Universitat de València, 2008. http://hdl.handle.net/10803/10343.

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The PhD dissertation presented here falls into the Earth Observation field, specifically vegetation monitoring. This work consists in the extensive exploitation of historical databases of satellite images for vegetation monitoring through two parameters, which are the land surface temperature (LST) and a vegetation index (NDVI). Up to now, vegetation monitoring has been limited to the use of vegetation indices, so the addition of the land surface temperature parameter represents the main innovative character of this PhD study.This dissertation is divided into 5 chapters. The first chapter begi

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3

Julien, Yves Rodriguez Sobrino José Antonio Nerry Françoise. "Vegetation monitoring through retrieval of NDVI and LST time series from historical databases." Strasbourg : Université Louis Pasteur, 2008. http://eprints-scd-ulp.u-strasbg.fr:8080/1021/01/JULIEN_Yves_2008.pdf.

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Thèse de doctorat : Electronique, électrotechnique, automatique : Strasbourg 1 : 2008. Tesis doctoral : Electrónica, electrotécnica, automático : Universitat de València : 2008.<br>Thèse soutenue sur un ensemble de travaux. Thèse soutenue en co-tutelle. Titre provenant de l'écran-titre. Bibliogr. 34 p.

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Ratana, Piyachat. "Spatial and Temporal Amazon Vegetation Dynamics and Phenology Using Time Series Satellite Data." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/194427.

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Improved knowledge of landscape seasonal variations and phenology at the regional scale is needed for carbon and water flux studies, and biogeochemical, hydrological, and climate models. Amazon vegetation mechanisms and dynamics controlling biosphere-atmosphere interactions are not entirely understood. To better understand these processes, vegetation photosynthetic activity and canopy water and temperature dynamics were analyzed over various types of vegetation in Amazon using satellite data from the Terra-Moderate Resolution Imaging Spectroradiometer (MODIS). The objectives of this dissertati

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5

Gebrehiwot, Worku Zewdie. "Climate, land use and vegetation trends." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-209668.

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Land use / land cover (LULC) change assessment is getting more consideration by global environmental change studies as land use change is exposing dryland environments for transitions and higher rates of resource depletion. The semiarid regions of northwestern Ethiopia are not different as land use transition is the major problem of the region. However, there is no satisfactory study to quantify the change process of the region up to now. Hence, spatiotemporal change analysis is vital for understanding and identification of major threats and solicit solutions for sustainable management of the

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Tomás, Ana Raquel Dias. "Application of empirical mode decomposition (EMD) to chronological series of active fires from MODIS satellite." Master's thesis, ISA/UTL, 2011. http://hdl.handle.net/10400.5/4481.

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Mestrado em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia<br>Fire is a global phenomenon, acting as an important disturbance process. Africa is one of the continents that has higher fire density, particularly in savanna regions, making it the subject of innumerous studies about fire regime and behavior. Here, a new method of time series analysis called Empirical Mode Decomposition (EMD) was applied to monthly fire counts time series from MODIS Terra/Aqua sensors. The goals were to analyze the differences between the time series from the two instruments (MODIS T

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7

Casady, Grant M. "Examining Drivers of Post-Wildfire Vegetation Dynamics Across Multiple Scales Using Time-Series Remote Sensing." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/195408.

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Ecosystem response to disturbance is a function of environmental factors interacting at a number of spatio-temporal scales. This research explored ecosystem response to wildfire as a function of local and broad-scale environmental factors using satellite based time-series remote sensing data. This topic was explored as a series of three independent but related studies. The first study focused on the evaluation of techniques for the analysis of time-series satellite data for describing post-fire vegetation trends at sites in the US, Spain, and Israel. Time-series data effectively described

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8

González, Garcia Isabel. "Influência do clima nas variações estacionais e interanuais do indice de vegetação de diferença normalizada (NDVI) no montado português." Master's thesis, ISA/UTL, 2012. http://hdl.handle.net/10400.5/5467.

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Mestrado em Engenharia do Ambiente - Instituto Superior de Agronomia<br>Nowadays the climate change makes more necessary the study of ecosystem dynamics. The Portuguese montado is an ecosystem with very particular characteristics, because is a combined system with pastures and forest, managed by men, and depends on this manage to continue. More than economic value, montado is very important system with a big biodiversity and landscape quality. For this study was propose to study about the seasonal variation of montado, since 2000 to 2012, using remote sensing and vegetation index as tools to a

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9

Wessollek, Christine, Babatunde Osunmadewa, and Pierre Karrasch. "Introducing a rain-adjusted vegetation index (RAVI) for improvement of long-term trend analyses in vegetation dynamics." SPIE, 2015. https://tud.qucosa.de/id/qucosa%3A35057.

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It seems to be obvious that precipitation has a major impact on greening during the rainy season in semi-arid regions. First results1 imply a strong dependence of NDVI on rainfall. Therefore it will be necessary to consider specific rainfall events besides the known ordinary annual cycle. Based on this fundamental idea, the paper will introduce the development of a rain adjusted vegetation index (RAVI). The index is based on the enhancement of the well-known normalized difference vegetation index (NDVI2) by means of TAMSAT rainfall data and includes a 3-step procedure of determining RAVI. With

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10

Fernandes, Jeferson Lobato. "Monitoramento da cultura de cana-de-açucar no Estado de São Paulo por meio de imagens spot vegetation e dados meteorologicos." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256961.

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Orientadores: Jansle Vieira Rocha, Rubens Augusto Camargo Lamparelli<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola<br>Made available in DSpace on 2018-08-14T11:30:01Z (GMT). No. of bitstreams: 1 Fernandes_JefersonLobato_M.pdf: 2074887 bytes, checksum: af58e53746d7d186e6f1331527b3c3e8 (MD5) Previous issue date: 2009<br>Resumo: O atual sistema de previsão de safras para a cultura da cana-de-açúcar utilizado no Brasil depende, em boa parte, de informações subjetivas, baseadas no conhecimento de técnicos do setor e informações da cadeia produtiva

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Wessollek, Christine, and Pierre Karrasch. "Monitoring of vegetation dynamics on the former military training area Königsbrücker Heide using remote sensing time series." SPIE, 2016. https://tud.qucosa.de/id/qucosa%3A35117.

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In 1989 about 1.5 million soldiers were stationed in Germany. With the political changes in the early 1990s a substantial decline of the staff occurred on currently 200,000 employees in the armed forces and less than 60,000 soldiers of foreign forces. These processes entailed conversions of large areas not longer used for military purposes, especially in the new federal states in the eastern part of Germany. One of these conversion areas is the former military training area Königsbrück in Saxony. For the analysis of vegetation and its development over time, the Normalized Difference Vegetation

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Shen, Meicheng. "Statistical Estimation of Vegetation Production in the Northern High Latitude Region based on Satellite Image Time Series." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1563552594966495.

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Adjei, Zola Yaa. "Using Remote Sensing to Explore the Time History of Emergent Vegetation at Malheur Lake, Oregon." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5647.

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The growth patterns of emergent vegetation can be a useful indicator for factors affecting lake health. However, field data to characterize emergent vegetation at many reservoirs may not be available or may be limited to small, isolated areas. We present a case study using remotely sensed data from the Landsat satellite to generate data to represent emergent vegetation in the near-shoreline and tributary delta areas of Malheur Lake, Oregon. We selected late June images for this study as vegetation is relatively mature in late June and visible, but has not completely grown-in providing a better

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McMahon, William. "Pre-vegetation alluvium : geological evidence for river behaviour in the absence of land plants." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/276277.

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Pre-vegetation alluvium is unique; at the present day, plants affect multiple aspects of river functioning and deposition and so those rivers that operated before the evolution of land plants largely lack modern sedimentological analogue. However, such rivers were the norm for the first 90% of Earth history and so a better understanding of their sedimentary product enables insight into both the fundamental underlying mechanisms of river behaviour and the ways in which fluvial processes operated on ancient Earth and other rocky planets. This study presents five original fieldwork based case stu

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15

Braget, Austin Ray. "Time series analysis of phenometrics and long-term vegetation trends for the Flint Hills ecoregion using moderate resolution satellite imagery." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/35553.

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Master of Arts<br>Department of Geography<br>J. M. Shawn Hutchinson<br>Grasslands of the Flint Hills are often burned as a land management practice. Remote sensing can be used to help better manage prairie landscapes by providing useful information about the long-term trends in grassland vegetation greenness and helping to quantify regional differences in vegetation development. Using MODIS 16-day NDVI composite imagery between the years 2001-10 for the entire Flint Hills ecoregion, BFAST was used to determine trend, seasonal, and noise components of the image time series. To explain the tren

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Wessollek, Christine, and Pierre Karrasch. "Monitoring structural breaks in vegetation dynamics of the nature reserve Königsbrücker Heide." SPIE, 2017. https://tud.qucosa.de/id/qucosa%3A34984.

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Nowadays remote sensing is a well-established method and technique of providing data. The current development shows the availability of systems with very high geometric resolution for the monitoring of vegetation. At the same time, however, the value of temporally high-resolution data is underestimated, particularly in applications focusing on the detection of short-term changes. These can be natural processes like natural disasters as well as changes caused by anthropogenic interventions. These include economic activities such as forestry, agriculture or mining but also processes which are in

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Osunmadewa, Babatunde Adeniyi, Worku Zewdie Gebrehiwot, Elmar Csaplovics, and Olabinjo Clement Adeofun. "Spatio-temporal monitoring of vegetation phenology in the dry sub-humid region of Nigeria using time series of AVHRR NDVI and TAMSAT datasets." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-235570.

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Time series data are of great importance for monitoring vegetation phenology in the dry sub-humid regions where change in land cover has influence on biomass productivity. However few studies have inquired into examining the impact of rainfall and land cover change on vegetation phenology. This study explores Seasonal Trend Analysis (STA) approach in order to investigate overall greenness, peak of annual greenness and timing of annual greenness in the seasonal NDVI cycle. Phenological pattern for the start of season (SOS) and end of season (EOS) was also examined across different land cover ty

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Osunmadewa, Babatunde A., Christine Wessollek, and Pierre Karrasch. "Linear and segmented linear trend detection for vegetation cover using GIMMS normalized difference vegetation index data in semiarid regions of Nigeria." SPIE, 2015. https://tud.qucosa.de/id/qucosa%3A35266.

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Quantitative analysis of trends in vegetation cover, especially in Kogi state, Nigeria, where agriculture plays a major role in the region’s economy, is very important for detecting long-term changes in the phenological behavior of vegetation over time. This study employs the use of normalized difference vegetation index (NDVI) [global inventory modeling and mapping studies 3g (GIMMS)] data from 1983 to 2011 with detailed methodological and statistical approach for analyzing trends within the NDVI time series for four selected locations in Kogi state. Based on the results of a comprehensive st

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Tsyganskaya, Viktoriya [Verfasser], and Ralf [Akademischer Betreuer] Ludwig. "Detection of temporarily flooded vegetation using time series of dual polarised C-band synthetic aperture radar data / Viktoriya Tsyganskaya ; Betreuer: Ralf Ludwig." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2020. http://d-nb.info/1212362969/34.

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Osunmadewa, Babatunde Adeniyi. "Spatio-Temporal Modeling of Vegetation Change Dynamics in the Guinea Savannah Region of Nigeria using Remote Sensing and GIS Techniques." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-229288.

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The use of Normalized Difference Vegetation Index (NDVI) time series over the last decades has increased our understanding of vegetation change dynamics from global to regional scale through quantitative analysis of inter-annual trends in NDVI and climatological parameters (rainfall and temperature). Change in land cover induced by human activities such as livestock grazing and deforestation for large-scale farming (subsistence and mechanized) has influenced the ecological pattern of the Guinea savannah region (GSR) of Nigeria, thereby resulting in loss of biodiversity and changes in vegetatio

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Propastin, Pavel. "Remote sensing based study on vegetation dynamics in drylands of Kazakhstan." Doctoral thesis, Stuttgart Ibidem-Verl, 2007. http://hdl.handle.net/11858/00-1735-0000-0006-B26A-A.

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22

Williams, Danielle M. "Time series analysis of vegetation dynamics and burn scar mapping at Smoky Hill Air National Guard Range, Kansas using moderate resolution satellite imagery." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/34462.

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Master of Arts<br>Department of Geography<br>J. M. Shawn Hutchinson<br>Military installations are important assets for the proper training of armed forces. To ensure the continued viability of training lands, management practices need to be implemented to sustain the necessary environmental conditions for safe and effective training. For this study two analyses were done, a contemporary burn history and a time series analysis. The study area is Smoky Hill Air National Guard Range (ANGR), an Impact Area (within the range) and a non-military Comparison Site. Landsat 5 TM / 7 ETM+ imagery was u

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Romo, Leon Jose Raul. "Examining Trends in Post-Disturbance Ecosystem Dynamics in the Southwestern United States and Northwestern Mexico Using Remote Sensing Time-Series Data and Land Cover Change Detection." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/205420.

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New forms of disturbance, and alteration of current disturbance regimes in arid and semiarid ecosystems, have resulted in the modification and degradation of large regions. This research explores vegetation response as a consequence of two different disturbance events in the southwestern US and northwestern Mexico. This topic was explored in this dissertation utilizing remotely sensed geospatial information in three separate studies.The first study explores the development of methods to assess the effectiveness of pre-fire restoration efforts, by evaluating vegetation response as a function o

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Minas, Michael Getachew. "Characterization of plant-water interaction in Kilombero River Catchment in Tanzania using Normalized Difference Vegetation Index (NDVI)." Thesis, Stockholms universitet, Institutionen för naturgeografi och kvartärgeologi (INK), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-110913.

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Remote-sensing based indices such as Normalized Difference Vegetation Index have yielded valuable information about plant health. As the availability of water is one of the factors that controls plant's response to their environment, it is possible to indirectly studythe hydrology of an area via vegetation indices. Hence the thesis work used this tool to characterize the potential shifts in vegetation cover within and between years in Kilombero river catchment in Tanzania and make connection to the hydrology in the area. Separate time series analyses conducted on data pertaining to NDVI values

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ANGELUCCI, GIOVANNA. "DINAMICA DI VEGETAZIONE IN AREE DI POST-ABBANDONO DELLA PIANURA PADANA." Doctoral thesis, Università degli Studi di Milano, 2011. http://hdl.handle.net/2434/154021.

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VEGETATION DYNAMICS IN ABANDONED FIELDS IN THE PO PLAIN (ITALY) Human impact and the mechanization of agricultural activitities have deeply modified the natural landscape in the Po plain (northern Italy), as well as in other countries. Forest vegetation in this area has strongly declined since the Neolithic (CASTELLETTI E ROTTOLI, 1998), with subsequent modifications of forest structure and floristic composition. Nonetheless, the recent decrease of agricultural pressure has enhanced the development of postcultural vegetation dynamics, allowing us to start an examination the vegetation dyna

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Schwieder, Marcel. "Landsat derived land surface phenology metrics for the characterization of natural vegetation in the Brazilian savanna." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19368.

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Die Brasilianische Savanne, auch bekannt als der Cerrado, bedeckt ca. 24% der Landoberfläche Brasiliens. Der Cerrado ist von einer einzigartigen Biodiversität und einem starken Gradienten in der Vegetationsstruktur gekennzeichnet. Großflächige Landnutzungsveränderungen haben dazu geführt, dass annähernd die Hälfte der Cerrado in bewirtschaftetes Land umgewandelt wurde. Die Kartierung ökologischer Prozesse ist nützlich, um naturschutzpolitische Entscheidungen auf räumlich explizite Informationen zu stützen, sowie um das Verständnis der Ökosystemdynamik zu verbessern. Neue Erdbeobachtungssensore

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Alhemiary, Abdulmaged [Verfasser], Gottfried [Gutachter] Jetschke, Sören Mathias [Gutachter] Hese, and Sebastian [Gutachter] Schmidtlein. "Time series analysis of high resolution remote sensing data to assess degradation of vegetation cover of the island of Socotra (Yemen) / Abdualmaged Alhemiary ; Gutachter: Gottfried Jetschke, Sören Mathias Hese, Sebastian Schmidtlein." Jena : Friedrich-Schiller-Universität Jena, 2017. http://d-nb.info/1205682163/34.

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Jacquin, Anne. "Dynamique de la végétation des savanes en lien avec l’usage des feux à Madagascar : analyse par série temporelle d’images de télédétection." Phd thesis, Toulouse, INPT, 2010. http://oatao.univ-toulouse.fr/7223/1/jacquin.pdf.

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Bien que le feu soit reconnu comme un facteur d’influence dans la dynamique de végétation des savanes, son rôle n’est pas clairement défini. Cette thèse aborde le problème de l’étude de la relation entre l’usage des feux et la dynamique de végétation. L’approche choisie repose sur l’analyse de séries temporelles d’images de télédétection à moyenne résolution spatiale. Les savanes étudiées sont situées sur le bassin versant de Marovoay au nord-ouest de Madagascar. Dans la mesure où il n’existe pas de consensus quant aux méthodes à utiliser, les savanes de Madagascar offrent un contexte particul

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Bouzahar, Chafika. "Phytosociologie paysagère et gestion conservatoire de la biodiversité dans le Dahra oriental." Electronic Thesis or Diss., Brest, 2022. http://www.theses.fr/2022BRES0049.

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Le paysage végétal méditerranéen, dont la formation dépend principalement de l’action de l’homme, est actuellement menacé par l'augmentation des influences anthropiques qui provoquent une profonde modification des paysages. Les écosystèmes forestiers sont remplacés par des écosystèmes anthropisés, menaçant la biodiversité de cette région. Ce travail est mené dans le cadre de la gestion et la conservation de la biodiversité de la région méditerranéenne, en général, et celle de l’Algérie en particulier. Il consiste en la typologie et la cartographie de la végétation et des séries de végétation d

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Magidi, James Takawira. "Spatio-temporal dynamics in land use and habit fragmentation in Sandveld, South Africa." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_7886_1297841126.

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<p>This research assessed landuse changes and trends in vegetation cover in the Sandveld, using remote sensing images. Landsat TM satellite images of 1990, 2004 and 2007 were classified using the maximum likelihood classifier into seven landuse classes, namely water, agriculture, fire patches, natural vegetation, wetlands, disturbed veld, and open sands. Change detection using remote sensing algorithms and landscape metrics was performed on these multi-temporal landuse maps using the Land Change Modeller and Patch Analyst respectively. Markov stochastic modelling techniques were used to predic

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Jimenez, Alberto Jr. "Restoration criteria on dolomite quarries on "Sierra de Mijas" mountain range." Thesis, Halmstad University, School of Business and Engineering (SET), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-958.

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<p>There are many dolomitic outcrops at Rondean sector (into the biogeographical Betic Province). Most of them, involve floral richness and vegetal endemic species due to its calcareous origin. These diverse organisms build peculiar plant communities. They can survive in extreme conditions as drought and high levels of Mg2+ cation. Many studies pronounce that these communities are unique, so they have to be conserved, and some of these plant communities are in the Habitats Directive 92/43 EC. </p><p>38% of the dolomitic outcrops can be affected by mining processes. Those particularly affected

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Cechim, Júnior Clóvis. "Mapeamento e estimativa de área de cana-de-açúcar no estado do Paraná." Universidade Estadual do Oeste do Parana, 2016. http://tede.unioeste.br:8080/tede/handle/tede/263.

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Made available in DSpace on 2017-05-12T14:47:35Z (GMT). No. of bitstreams: 1 Clovis_Cechim_MC.pdf: 6987482 bytes, checksum: c33db297dd7ec8aaf8bfde9e1e56c2cc (MD5) Previous issue date: 2016-02-04<br>Sugarcane has been cropped and produced in Brazil for a long time, so, it deserves mention because it makes the country as the largest producer, with also representativeness in sugar and ethanol production. The knowledge of reliable estimates concerning their cropped areas is essential for Brazilian agribusiness, as they help in determining prices to producers by power plants as well as allow esta

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RAMMELOO, BENEDICTE. "Acupuncture et modifications du systeme nerveux autonome au cours d'une serie d'epreuves anxiogenes." Lyon 1, 1988. http://www.theses.fr/1988LYO1M241.

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Ribeiro, Eduardo Francisco. "Lineamento regional no norte do Pantanal separando áreas de vegetação fenológica e floristicamente distintas: evidências de diversidade ambiental originada por neotectônica." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/44/44137/tde-22082017-090048/.

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O Pantanal é uma bacia sedimentar quaternária ativa de baixa declividade que vem sendo preenchida principalmente por megaleques fluviais. Apesar de possuir um relevo plano e uma geologia à primeira vista monótona, o Pantanal é um mosaico de ambientes distintos. A presença, intensidade e duração das inundações é considerada a mais importante causa da variabilidade ambiental, implicando que pequenas variações no relevo tenham drástica influência florística e fenológica. Estas variações espacialmente expressivas geram lineamentos de vegetação e captura de drenagens e estão associadas à neotectôni

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Delbosc, Pauline. "Phytosociologie dynamico-caténale des végétations de la Corse : méthodologies typologique et cartographique." Thesis, Brest, 2015. http://www.theses.fr/2015BRES0069/document.

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À partir des années 1970 et notamment à travers les travaux de Tüxen (1978) puis de Géhu & Rivas-Martínez (1981), la phytosociologie dynamico-caténale a permis de mieux intégrer la dynamique des végétations en décrivant plus finement les trajectoires dynamiques des séries de végétation. Si les méthodologies d’étude des dynamiques des végétations se sont multipliées depuis les dernières décennies en Europe, de tels travaux restent peu nombreux en France. Un programme national de Cartographie des Habitats naturels et semi-naturels (CarHAB), lancé par le Ministère de l’Écologie, du Développem

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Rodrigues, Arlete da Silva. "Analysis of vegetation dynamics using time-series vegetation index data from Earth Observation Satellites." Doctoral thesis, 2014. https://repositorio-aberto.up.pt/handle/10216/77510.

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Rodrigues, Arlete da Silva. "Analysis of vegetation dynamics using time-series vegetation index data from Earth Observation Satellites." Tese, 2014. https://repositorio-aberto.up.pt/handle/10216/77510.

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Laštovička, Josef. "Hodnocení lesní vegetace pomocí časových řad družicových snímků." Doctoral thesis, 2020. http://www.nusl.cz/ntk/nusl-435801.

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Příloha k disertační práci: Abstrakt v AJ (Mgr. Josef Laštovička) Abstract This dissertation thesis deals with the study of forest ecosystems in the central Europe with the time series of multispectral optical satellite data. These forest ecosystems have been influenced by biotic and abiotic disturbances for the last decade. The time series of the satellite data with high spatial resolution allow the detection and analysis of forest disturbances. This thesis is mainly focused primally on free available Landsat and Sentinel-2 data, these two data types were compared. From methods, the differenc

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Cadman, Ann. "The relationship between pollen rain, vegetation, climate, meteorological factors and land-use in the PWV, Transvaal." Thesis, 1991. http://hdl.handle.net/10539/22026.

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A two-year analysis of pollen rain was conducted in the Pretoria-Witwatersrand-Vereeniging district of the Transvaal, South Africa. Poaceae WaS the major component of the pollen assemblage, comprising 52% regionally. Of the total pollen count, 58.8% was non-seasonal and present throughout the year. During the analysis it became apparent that fungal spores dominated the atmospheric content, accounting for 94% of total airspora, considered here to incl ude pollen and fUngal spores.[Abbreviated Abstract. Open document to view full version].<br>AC2017

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Laštovička, Josef. "Hodnocení časových řad družicových snímků k pozorování disturbancí v oblasti Nízkých Tater." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-347029.

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The work is aimed at finding appropriate methods for observing changes in the status of forest vegetation and its evaluation in the years 1992-2015. The satellite images of the Low Tatras are analyzed by using Time Series technology. Specifically, the images Landsat 4, 5, 7 and 8, for which it is necessary to perform a calibration and an adjustment of input data values to realize the individual vegetation indices, due to the fact that the images are captured by different sensors with different radiometric resolution. From this perspective, the work deals with the possibilities of normalized re

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