Download or read book A Comparison of Landsat Thematic Mapper Digital Classification and Visual Interpretation of Aerial Photography for Mapping Forest Fire Burn Intensity written by and published by . This book was released on 1996 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Airborne Reconnaissance written by and published by . This book was released on 1996 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing of Hydrometeorological Hazards written by George P. Petropoulos and published by CRC Press. This book was released on 2017-11-02 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extreme weather and climate change aggravate the frequency and magnitude of disasters. Facing atypical and more severe events, existing early warning and response systems become inadequate both in scale and scope. Earth Observation (EO) provides today information at global, regional and even basin scales related to agrometeorological hazards. This book focuses on drought, flood, frost, landslides, and storms/cyclones and covers different applications of EO data used from prediction to mapping damages as well as recovery for each category. It explains the added value of EO technology in comparison with conventional techniques applied today through many case studies.
Download or read book Estimating Area Burned by Wildfire from Landsat Data written by Nancy A. Swanberg and published by . This book was released on 1981 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earth Resources written by and published by . This book was released on 1977 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book First Order Fire Effects Model written by Elizabeth D. Reinhardt and published by . This book was released on 1997 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: A First Order Fire Effects Model (FOFEM) was developed to predict the direct consequences of prescribed fire and wildfire. FOFEM computes duff and woody fuel consumption, smoke production, and fire-caused tree mortality for most forest and rangeland types in the United States. The model is available as a computer program for PC or Data General computer.
Download or read book Digital Classification of Landsat Data for Vegetation and Land cover Mapping in the Blackfoot River Watershed Southeastern Idaho written by Lawrence R. Pettinger and published by . This book was released on 1982 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: A case study, including step-by-step procedures for computer-assisted analysis of Landsat digital data, with emphasis on assessment of classification accuracy and generation of output products.
Download or read book Comparison of AVHRR Classification and Aerial Photography Interpretation for Estimation of Forest Area written by Keith Byron Lannom and published by . This book was released on 1995 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest area was estimated using AVHRR data and dot count procedures.
Download or read book Knowledge based Classification of Landsat Thematic Mapper Digital Imagery written by Daniel Louis Civco and published by . This book was released on 1987 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildland Fuel Fundamentals and Applications written by Robert E. Keane and published by Springer. This book was released on 2014-11-04 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new era in wildland fuel sciences is now evolving in such a way that fire scientists and managers need a comprehensive understanding of fuels ecology and science to fully understand fire effects and behavior on diverse ecosystem and landscape characteristics. This is a reference book on wildland fuel science; a book that describes fuels and their application in land management. There has never been a comprehensive book on wildland fuels; most wildland fuel information was put into wildland fire science and management books as separate chapters and sections. This book is the first to highlight wildland fuels and treat them as a natural resource rather than a fire behavior input. Moreover, there has never been a comprehensive description of fuels and their ecology, measurement, and description under one reference; most wildland fuel information is scattered across diverse and unrelated venues from combustion science to fire ecology to carbon dynamics. The literature and data for wildland fuel science has never been synthesized into one reference; most studies were done for diverse and unique objectives. This book is the first to link the disparate fields of ecology, wildland fire, and carbon to describe fuel science. This just deals with the science and ecology of wildland fuels, not fuels management. However, since expensive fuel treatments are being planned in fire dominated landscapes across the world to minimize fire damage to people, property and ecosystems, it is incredibly important that people understand wildland fuels to develop more effective fuel management activities.
Download or read book Comparison of Forest Fire Mapping Results from Aerial Reconnaissance and from Landsat Imagery written by L. Mychasiw and published by . This book was released on 1983 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report comparing the accuracy of the conventional method of mapping forest fires with mapping from Landsat imagery. The comparison was done on forest fires that occurred 1969 to 1980 in the Fort Smith region of the Northwest Territories. Such information is important in assessing forest fire impact on wildlife habitat.
Download or read book The Effect of Training Block Size on Unsupervised Classification of Landsat Thematic Mapper Imagery written by Paul W. Snook and published by . This book was released on 1991 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Digital and Visual Classification of Land Use land Cover Using Landsat MSS and High Altitude Photography Data written by Ramiro Salcedo and published by . This book was released on 1984 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Revisit Frequency and Availability of Cloud free Observation on Landsat Global Burned Area Mapping written by Andrea Melchiorre and published by . This book was released on 2020 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fire is one of the most relevant disturbances affecting terrestrial ecosystems globally, altering vegetation, soil, water, and atmospheric composition. Fire causes a non-permanent land cover change, through the removal of vegetation, the deposition of charcoal and ashes, and the exposure of soil; the temporal persistence of these changes is highly variable, ranging from a few weeks in tropical savannas to years in boreal forests. Global burned area products have been systematically generated in the past 20 years from several coarse spatial resolution (250 m - 1 km) Earth Observation (EO) systems. These products are the main input in global biomass burning atmospheric emission inventories, and in the most recent studies on the role of fire in the global carbon cycle and vegetation dynamics. Because of the non-permanent nature of burned areas, the algorithms employed for the generation of global burned area products rely on the availability of daily or near-daily observations from coarse resolution EO systems. The high revisit frequency ensures that a sufficient number of cloud-free observations are generally available globally before burned areas disappear, with few exceptions in known locations of persistent cloud cover. The systematic generation of moderate spatial resolution (10 m - 30 m) burned area products could potentially meet the needs of a variety of fire science and applications communities, and at different scales from global (e.g., pyrogenic carbon emissions estimation) to regional scale (e.g., environmental post-fire assessment and remediation decision support). Algorithms for the generation of moderate resolution burned area maps have been recently prototyped regionally and continentally, and have the potential for global implementation. However, ,moderate resolution sensors have reduced temporal resolution (e.g., 16 days for Landsat) compared to coarse resolution sensors (e.g., ~1 day for MODIS), which could potentially lead to omission errors in ecosystems where the spectral signal associated with burning events disappears quickly, and cloud cover limits the number of valid observations. My dissertation focuses on estimating the combined effect of the impermanent nature of land cover change typical of burning events and the cloud cover, which reduces the number of valid observations available to detect burns, on global burned area mapping using Landsat data. The dissertation has three objectives. The first objective (Chapter 2) is to estimate the temporal persistence time of the signal associated with burned areas, stratified by ecosystem and land cover type, making use of the global, multiyear MODIS data record. The second objective (Chapter 3) is to evaluate the suitability of the MODIS-derived cloud mask as a proxy for Landsat 7 cloud observations. Finally, the third objective (Chapter 4) is to estimate the potential omission errors in a hypothetical global Landsat burned area product, due to the combined effect of reduced revisit frequency and cloud contamination. Chapter 2 presents a global analysis of the burned area persistence time defined as the duration of the spectral separability of the burned / unburned areas mapped by the MODIS Global Burned Area Product (MCD64). The separability was computed by analyzing time series of normalized burn ratio (NBR) from nadir BRDF-adjusted MODIS reflectances (MCD43). Results showed that, globally, the median burned area persistence time was estimated as 29 days and 86.6% of the global area, as detected by MODIS, can be detected accurately only for up to 48 days. Furthermore, the results indicated that early and late fires had a shorter persistence time compared to fires burning in the central portion of the fire season. The results, therefore, indicate that the persistence time can be a limiting factor for mapping burned areas using moderate resolution satellite sensors, which have a low temporal resolution (e.g. Landsat 16 days, Sentinel 2A and 2B 10 days each, 5 days when used in combination). Chapter 3 presents a comparison of Landsat and MODIS cloud data. Landsat 7 Enhanced Thematic Mapper Plus (ETM+) image cloud fractions over land were compared with collocated MODIS cloud fractions, generated by combining the MODIS-Terra global daily cloud mask product (MOD35) with the Landsat 7 ETM+ image footprints and acquisition calendar. The results showed high correlation between the MODIS and Landsat 7 ETM+ cloud fractions (R2 = 0.83), negligible bias (median difference:
Download or read book Classification Methods for Remotely Sensed Data written by Paul Mather and published by CRC Press. This book was released on 2001-12-06 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote sensing is an integral part of geography, GIS and cartography, used by academics in the field and professionals in all sorts of occupations. The 1990s saw the development of a range of new methods of classifying remote sensing images and data, both optical imaging and microwave imaging. This comprehensive survey of the various techniques pul
Download or read book Fire Ecology and Management Past Present and Future of US Forested Ecosystems written by Cathryn H. Greenberg and published by Springer Nature. This book was released on 2021-10-01 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume presents original scientific research and knowledge synthesis covering the past, present, and potential future fire ecology of major US forest types, with implications for forest management in a changing climate. The editors and authors highlight broad patterns among ecoregions and forest types, as well as detailed information for individual ecoregions, for fire frequencies and severities, fire effects on tree mortality and regeneration, and levels of fire-dependency by plant and animal communities. The foreword addresses emerging ecological and fire management challenges for forests, in relation to sustainable development goals as highlighted in recent government reports. An introductory chapter highlights patterns of variation in frequencies, severities, scales, and spatial patterns of fire across ecoregions and among forested ecosystems across the US in relation to climate, fuels, topography and soils, ignition sources (lightning or anthropogenic), and vegetation. Separate chapters by respected experts delve into the fire ecology of major forest types within US ecoregions, with a focus on the level of plant and animal fire-dependency, and the role of fire in maintaining forest composition and structure. The regional chapters also include discussion of historic natural (lightning-ignited) and anthropogenic (Native American; settlers) fire regimes, current fire regimes as influenced by recent decades of fire suppression and land use history, and fire management in relation to ecosystem integrity and restoration, wildfire threat, and climate change. The summary chapter combines the major points of each chapter, in a synthesis of US-wide fire ecology and forest management into the future. This book provides current, organized, readily accessible information for the conservation community, land managers, scientists, students and educators, and others interested in how fire behavior and effects on structure and composition differ among ecoregions and forest types, and what that means for forest management today and in the future.
Download or read book Geospatial Information written by Congress. House and published by DIANE Publishing. This book was released on 2003 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:
