Download or read book Coral Reef Habitat Change and Water Clarity Assessment 1984 2002 for the Florida Keys National Marine Sanctuary Using Landsat Satellite Data written by David A. Palandro and published by . This book was released on 2006 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: The decline of coral reef habitats has been witnessed on a global scale, with some of the most dramatic decline occurring in the Florida Keys. As remote sensing can provide a synoptic view of coral reef ecosystems, 28 Landsat images (1984-2002) were utilized to study water clarity and habitat change. First, the data were used to derive the diffuse attenuation coefficient ( Kd, m-1), a measure of water clarity, for 29 sites throughout the Florida Keys National Marine Sanctuary (FKNMS). Landsat-derived Kd values from bands 1 (blue) and 2 (green) provided useful information for 26 of 29 sites, whereas band 3 (red) provided no consistent data due to the high absorption of red light by water. It was not possible to assess long-term temporal trends as data were acquired, at most, twice a year. Spatial variability was high between sites and between regions (Upper, Middle and Lower Keys) for bands 1 (0.019 m-1 - 0.060 m -1) and 2 (0.036 m-1 - 0.076 m-1). The highest Kd values were found in the Upper Keys, followed by the Middle and Lower Keys, respectively. This trend was corroborated by in situ monitoring of Kd( PAR). Second, the data were used to assess benthic habitat changes in eight coral reef sites located in the FKNMS. A Mahalanobis distance classification was trained for four classes using in situ ground-truth data. Overall coral habitat decline was 61% (3.4%/y), from 19% (1984) to 7.7% (2002). In situ monitoring data acquired by the Coral Reef Evaluation and Monitoring Project (CREMP) for the eight reef sites (1996-2002) showed a loss in coral cover of 52%, whereas the Landsat-derived coral-habitat cover declined 37% for the same time period. A trend comparison between the full CREMP percent coral cover data (1996-2004) and the full Landsat-derived coral habitat class (1984-2002) showed no significant difference between the rates of change (ANCOVA F-test, p = 0.303). The derivation of Kd and benthic habitat maps produced from Landsat data could provide coastal marine managers another tool to help in the decision-making process.
Download or read book Coral Reef Remote Sensing written by James A. Goodman and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote sensing stands as the defining technology in our ability to monitor coral reefs, as well as their biophysical properties and associated processes, at regional to global scales. With overwhelming evidence that much of Earth’s reefs are in decline, our need for large-scale, repeatable assessments of reefs has never been so great. Fortunately, the last two decades have seen a rapid expansion in the ability for remote sensing to map and monitor the coral reef ecosystem, its overlying water column, and surrounding environment. Remote sensing is now a fundamental tool for the mapping, monitoring and management of coral reef ecosystems. Remote sensing offers repeatable, quantitative assessments of habitat and environmental characteristics over spatially extensive areas. As the multi-disciplinary field of coral reef remote sensing continues to mature, results demonstrate that the techniques and capabilities continue to improve. New developments allow reef assessments and mapping to be performed with higher accuracy, across greater spatial areas, and with greater temporal frequency. The increased level of information that remote sensing now makes available also allows more complex scientific questions to be addressed. As defined for this book, remote sensing includes the vast array of geospatial data collected from land, water, ship, airborne and satellite platforms. The book is organized by technology, including: visible and infrared sensing using photographic, multispectral and hyperspectral instruments; active sensing using light detection and ranging (LiDAR); acoustic sensing using ship, autonomous underwater vehicle (AUV) and in-water platforms; and thermal and radar instruments. Emphasis and Audience This book serves multiple roles. It offers an overview of the current state-of-the-art technologies for reef mapping, provides detailed technical information for coral reef remote sensing specialists, imparts insight on the scientific questions that can be tackled using this technology, and also includes a foundation for those new to reef remote sensing. The individual sections of the book include introductory overviews of four main types of remotely sensed data used to study coral reefs, followed by specific examples demonstrating practical applications of the different technologies being discussed. Guidelines for selecting the most appropriate sensor for particular applications are provided, including an overview of how to utilize remote sensing data as an effective tool in science and management. The text is richly illustrated with examples of each sensing technology applied to a range of scientific, monitoring and management questions in reefs around the world. As such, the book is broadly accessible to a general audience, as well as students, managers, remote sensing specialists and anyone else working with coral reef ecosystems.
Download or read book Environmental Applications of Remote Sensing written by Maged Marghany and published by BoD – Books on Demand. This book was released on 2016-06-08 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays, the innovation in space technologies creates a new trend for the Earth observation and monitoring from space. This book contains high quality and compressive work on both microwave and optical remote sensing applications. This book is divided into five sections: (i) remote sensing for biomass estimation, (ii) remote sensing-based glacier studies, (iii) remote sensing for coastal and ocean applications, (iv) sewage leaks and environment disasters, and (v) remote sensing image processing. Each chapter offers an opportunity to expand the knowledge about various remote sensing techniques and persuade researchers to deliver new research novelty for environment studies.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2007 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Variability in the Florida Keys written by Inia M. Soto and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Variability of suspended sediments and water clarity were estimated using satellite-derived, normalized water-leaving radiance products. Ocean color data were obtained from the Sea-viewing Wide-Field-of View Sensor (Sea WiFS) from 1998 to 2005. Normalized water-leaving radiance at 443 (Lwn443) was used as a proxy to examine variability in water clarity, and normalized water-leaving radiance at 670 (Lwn670) was used as a proxy to study variability in suspended sediments. A weak relationship was identified between variability of Lwn443 and Lwn670 and coral cover as estimated by CREMP assessments in 2005 (r=0.43, p = 0.01, N=35 and r = 0.47, p = 0.005, N=35, respectively). There was a weak relationship between coral cover change and Lwn670 from 1988 to 2005 (r = 0.46, p = 0.05, N=35), but there no relationship was observed between variability of Lwn443 and change in coral cover (r =0.27, p =0.11, N=35). Further research is required to understand the origin, concentration and composition of dissolved or suspended materials that change the turbidity of waters around reefs of the FKNMS, and whether these changes can be adequately interpreted by examining concurrent satellite imagery. Ultimately, such remote sensing and field research is required to understand how water quality affects the health of coral reefs, and how coral ecosystems adapt to environmental variability.
Download or read book Coral Restoration in the Florida Keys and Flower Garden Banks National Marine Sanctuaries written by and published by . This book was released on 2010 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sourcebook on Remote Sensing and Biodiversity Indicators written by Holly Strand and published by . This book was released on 2007 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This sourcebook is intended to assist environmental managers and others who work with indicators in pursuing appropriate methods for indicator testing and production, and to offer some guidance to those responsible for the interpretation of indicators and implementation of decisions based on them. Upon reading this document, technical advisers, environmental policy makers, and remote sensing lab directors and project managers should be able to identify specific, relevant uses of remote sensing data for biodiversity monitoring and indicator development related to the CBD." --p. 8.
Download or read book World Atlas of Seagrasses written by Frederick T. Short and published by Univ of California Press. This book was released on 2003 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seagrasses are a vital and widespread but often overlooked coastal marine habitat. This volume provides a global survey of their distribution and conservation status.
Download or read book World Atlas of Coral Reefs written by Mark Spalding and published by Univ of California Press. This book was released on 2001 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: An up-to-date, detailed, and fully-illustrated account of the biodiversity and status of coral reefs.
Download or read book A Cooperative Multi agency Reef Fish Monitoring Protocol for the Florida Keys Coral Reef Ecosystem written by and published by . This book was released on 2009 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This document provides the background behind and descriptions of the protocols developed for a collaborative, multi-agency effort to monitor reef fish populations in the Florida Keys and Dry Tortugas. Agencies involved include the National Oceanic and Atmospheric Administration Southeast Fisheries Science Center (NOAA Fisheries), Florida Fish and Wildlife Conservation Commission's Florida Fish and Wildlife Research Institute (FWRI), the University of Miami's Rosenstiel School of Marine and Atmospheric Science (UM-RSMAS), and the National Park Service (NPS). This collaborative effort is the culmination of nearly three decades of independent Florida Keys monitoring programs aimed at fish populations in the region"--Executive summary.
Download or read book The State of Coral Reef Ecosystems of the United States and Pacific Freely Associated States 2002 written by and published by . This book was released on 2002 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reefs at Risk in the Caribbean written by Lauretta Marie Burke and published by . This book was released on 2004 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many coastal communities in Latin America and the Caribbean depend on the resources provided by reefs for their livelihoods. The Reefs at Risk in the Caribbean project is a response to an information need. The primary goal is to raise awareness and improve management by improving the knowledge base on the status of and threats to coral reefs.
Download or read book Remote Sensing and Modeling written by Charles W. Finkl and published by Springer. This book was released on 2014-09-01 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is geared for advanced level research in the general subject area of remote sensing and modeling as they apply to the coastal marine environment. The various chapters focus on the latest scientific and technical advances in the service of better understanding coastal marine environments for their care, conservation and management. Chapters specifically deal with advances in remote sensing coastal classifications, environmental monitoring, digital ocean technological advances, geophysical methods, geoacoustics, X-band radar, risk assessment models, GIS applications, real-time modeling systems, and spatial modeling. Readers will find this book useful because it summarizes applications of new research methods in one of the world’s most dynamic and complicated environments. Chapters in this book will be of interest to specialists in the coastal marine environment who deals with aspects of environmental monitoring and assessment via remote sensing techniques and numerical modeling.
Download or read book Ecosystems of Florida written by Ronald L. Myers and published by University Press of Florida. This book was released on 1990 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between roughly 25 and 31 degrees north latitude, a combination of flat topography, poor soils, and limited surface water produce deserts nearly everywhere on earth. In Florida, however, these conditions support a lavish biota, more diverse than that of any other state east of the Mississippi. In this first comprehensive guide to the state's natural resources in sixty years, thirty top scholars describe the character, relationships, and importance of Florida's ecosystems, the organisms that inhabit them, the forces that maintain them, and the agents that threaten them. From pine flatwoods to coral reef, Ecosystems of Florida provides a detailed, comprehensive, authoritative account of the peninsular state's complex, fragile environments.
Download or read book An Ecosystem Services Approach to Assessing the Impacts of the Deepwater Horizon Oil Spill in the Gulf of Mexico written by National Research Council and published by National Academies Press. This book was released on 2013-12-20 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the Gulf of Mexico recovers from the Deepwater Horizon oil spill, natural resource managers face the challenge of understanding the impacts of the spill and setting priorities for restoration work. The full value of losses resulting from the spill cannot be captured, however, without consideration of changes in ecosystem services-the benefits delivered to society through natural processes. An Ecosystem Services Approach to Assessing the Impacts of the Deepwater Horizon Oil Spill in the Gulf of Mexico discusses the benefits and challenges associated with using an ecosystem services approach to damage assessment, describing potential impacts of response technologies, exploring the role of resilience, and offering suggestions for areas of future research. This report illustrates how this approach might be applied to coastal wetlands, fisheries, marine mammals, and the deep sea-each of which provide key ecosystem services in the Gulf-and identifies substantial differences among these case studies. The report also discusses the suite of technologies used in the spill response, including burning, skimming, and chemical dispersants, and their possible long-term impacts on ecosystem services.
Download or read book Reefs at Risk Revisited written by Lauretta Marie Burke and published by . This book was released on 2011 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coral Reef Habitat Assessment for U S Marine Protected Areas written by Coral Reef Conservation Program (U.S.) and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides results of a NOAA Coral Reef Conservation Program project to obtain accurate digital boundaries for U.S. MPA sites in 5 coral territories, the state of Hawaii, and the state of Florida from the Dry Tortugas to Biscayne Bay. The other main objective of this project was to use this information in conjunction with the digital benthic habitat data for these locations to perform a quantitative analysis of the amount of coral reef habitat protected within MPAs and within no-take marine reserves. The analysis demonstrated that the percentage of coral reef resources in MPAs and in no-take marine reserves varied dramatically by location. A significant source of information for these assessments has been the National Marine Protected Areas Center's Inventory of marine managed areas in U.S. and coastal waters.
