| Main Title |
Delineation of Pacific northwest SAVS from aerial photography : natural color or color infrared film / |
| Author |
Young, David R. ;
Specht, D. T. ;
Robbins, B. D. ;
Clinton, P. J.
|
| Other Authors |
|
| CORP Author |
National Health and Environmental Effects Research Lab., Corvallis, OR. ;OAO Corp., Newport, OR. |
| Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, |
| Year Published |
1999 |
| Report Number |
EPA/600/A-99/048; NHEERL-COR-2325A |
| Stock Number |
PB99-163107 |
| OCLC Number |
47955367 |
| Additional Subjects |
Submerged plants ;
Aquatic plants ;
Pacific Northwest(US) ;
Aerial photography ;
Color photography ;
Color infrared photography ;
Yaquina Bay ;
Oregon ;
Intertidal areas ;
Classifications ;
Quantitative analysis ;
Vegetation ;
Estuaries ;
Vegetative index ;
Photointerpretation ;
Digital techniques ;
Geometric rectification(Imagery)
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ESAD |
EPA 600-A-99-048 |
|
Region 10 Library/Seattle,WA |
05/09/2017 |
| NTIS |
PB99-163107 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
10 pages : illustrations ; 28 cm |
| Abstract |
The study was conducted within a PNW estuary to determine the utility of false-color infrared film versus natural (true) color-negative film for recognizing and quantifying submersed aquatic vegetation (SAV) growing on an intertidal flat. During the summer of 1997 aerial photographs were obtained of Yaquina Bay, or during a negative tidal event using both infrared and true color film (scale 1:7200). SAV distributions were delineated from digital orthorectified images derived from both film types, using a digital classification approach as well as a traditional photointerpretation approach. A field survey of 160 sites was conducted within one week of the aerial flights. The detection of SAV and bare substrate was compared among all methods using an accuracy assessment technique base don the ground survey data. Resultant accuracy assessment values were similar for both film types. However, the digital classification obtained for Yaquina Bay, Oregon, using the color infrared film was judged to be preferable to that obtained from the natural film. |
| Notes |
"EPA/600/R-99/061." Microfiche. |
