By James A. Goodman, Samuel J. Purkis, Stuart R. Phinn

ISBN-10: 9048192919

ISBN-13: 9789048192915

ISBN-10: 9048192927

ISBN-13: 9789048192922

Remote sensing stands because the defining expertise in our skill to observe coral reefs, in addition to their biophysical homes and linked tactics, at local to international scales. With overwhelming facts that a lot of Earth’s reefs are in decline, our want for large-scale, repeatable checks of reefs hasn't ever been so nice. thankfully, the final twenty years have visible a fast enlargement within the skill for distant sensing to map and video display the coral reef environment, its overlying water column, and surrounding environment.

Remote sensing is now a basic device for the mapping, tracking and administration of coral reef ecosystems. distant sensing deals repeatable, quantitative exams of habitat and environmental features over spatially large components. because the multi-disciplinary box of coral reef distant sensing maintains to mature, effects reveal that the thoughts and functions proceed to enhance. New advancements let reef exams and mapping to be played with larger accuracy, throughout better spatial parts, and with higher temporal frequency. The elevated point of data that distant sensing now makes on hand additionally permits extra advanced clinical inquiries to be addressed.

As outlined for this booklet, distant sensing comprises the great array of geospatial info accumulated from land, water, send, airborne and satellite tv for pc systems. The publication is equipped through expertise, together with: seen and infrared sensing utilizing photographic, multispectral and hyperspectral tools; lively sensing utilizing mild detection and varying (LiDAR); acoustic sensing utilizing send, independent underwater car (AUV) and in-water systems; and thermal and radar instruments.

Emphasis and Audience
This e-book serves a number of roles. It bargains an summary of the present state of the art applied sciences for reef mapping, offers special technical details for coral reef distant sensing experts, imparts perception at the medical questions that may be tackled utilizing this know-how, and likewise features a beginning for these new to reef distant sensing. the person sections of the ebook comprise introductory overviews of 4 major sorts of remotely sensed info used to review coral reefs, via particular examples demonstrating functional purposes of different applied sciences being mentioned. directions for choosing the main acceptable sensor for specific purposes are supplied, together with an outline of ways to make use of distant sensing information as a good device in technology and administration. The textual content is richly illustrated with examples of every sensing know-how utilized to various clinical, tracking and administration questions in reefs all over the world. As such, the ebook is widely obtainable to a basic viewers, in addition to scholars, managers, distant sensing experts and a person else operating with coral reef ecosystems.

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Extra resources for Coral Reef Remote Sensing: A Guide for Mapping, Monitoring and Management

Example text

R. Phinn et al. Fig. 5 Example spectral signatures from the same patch of live coral. 0 m of water, at-surface reflectance from airborne hyperspectral (CASI 2); and at-surface reflectance (x 10,000) from satellite multispectral (QuickBird 2) image (provided by Ian Leiper) significant spatial distortions due to the geometry of the photograph acquisition process. As a result, the scale, or relation of ground distance to the same distance in a photograph, may vary. Uncorrected photographs can therefore not be used to produce spatially accurate maps for comparison over time or for integration with other spatial data until they are first ortho-corrected.

2006; Dekker et al. 2011). 4 Future Directions Advances in science and technology will affect the sensors, data types, data accessibility, processing techniques and, collectively, our ability to transform remotely sensed images into maps of coral reef biophysical properties. Scientific advances pertain to the ongoing development and testing of image processing algorithms to more accurately map and monitor biophysical properties of coral 1 Visible and Infrared Overview 23 reefs. Advances in technology relate to changes to the spatial, spectral and radiometric dimensions of imaging sensors on airborne or satellite platforms, and the capabilities of the platforms themselves.

In some cases, regionally and globally applicable mapping programs using broad levels of detail have used manual digitizing to produce reef maps, such as the Millennium Coral Reef Mapping Project, which utilizes the global archive of Landsat Thematic Mapper and Landsat Enhanced Thematic Mapper data with 30 9 30 m pixels (Andréfouët et al. 2005b; Andréfouët 2008). More recent developments have seen image processing systems provide semiautomatic processes that replicate manual interpretation, in the form of geographic object-based image analysis (GEOBIA).

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