Guidance for Benthic Habitat Mapping : An Aerial Photographic Approach

By Finkbeiner, Mark

Excerpt
Introduction: This document, Guidance for Benthic Habitat Mapping, An Aerial Photographic Approach, describes proven technology that can be applied in an operational manner by state-level scientists and resource managers. This information is based on the experience gained by NOAA Coastal Services Center staff and state-level cooperators in the production of a series of benthic habitat data sets in Delaware, Florida, Maine, Massachusetts, New York, Rhode Island, the Virgin Islands, and Washington, as well as during Center-sponsored workshops on coral remote sensing and sea grass and aquatic habitat assessment. The original benthic habitat document, NOAA Coastal Change Analysis Program (C-CAP): Guidance for Regional Implementation (Dobson et al.), was published by the Department of Commerce in 1995. That document summarized procedures that were to be used by scientists throughout the United States to develop consistent and reliable coastal land cover and benthic habitat information. Advances in technology and new methodologies for generating these data created the need for this updated report, which builds upon the foundation of its predecessor.

Table of Contents
CONTENTS Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ? Objectives of This Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ? What Can Be Mapped Using These Methods . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ? Document Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Image Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 ? Mission Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 ? Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Collection of Ground Control Points for Image Rectification . . . . . . . . . . . . . . . . . . . 15 ? Ground Control Point Selection and Measurement with GPS . . . . . . . . . . . . 15 ? Alternative Sources of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Photointerpretation and Image Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ? Recommended Interpretation Decision Rules . . . . . . . . . . . . . . . . . . . . . . . . . 22 Data Development Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 ? Analytical Photogrammetry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 ? Soft-Copy Photogrammetry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ? Analog Interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Editing and Attributing Polygonal Habitat Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ? Building and Cleaning Polygon Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ? Reviewing Edited Polygon Coverages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Field Surveys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 ? Field Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 ? Signature Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Data Validation Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 ? Spatial Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 ? Thematic Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 ? Temporal Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Supplemental Mapping Technologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 ? Videography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 ? Single-Beam Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Book Id: WPLBN0000660634
Format Type: PDF eBook
File Size: 10.01 MB.
Reproduction Date: 2005
Full Text

Title:

Guidance for Benthic Habitat Mapping : An Aerial Photographic Approach

Author:

Finkbeiner, Mark

Volume:

Language:

English

Subject:

Science., Ecology & environment, National Oceanic and Atmospheric Administration (U.S.)

Collection:

National Oceanographic Data Center

Subcollection:

Historic
Publication Date:

Publisher:

Government Reference Publication

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